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STM60-318324STM60-329333
FRONT MOUNTED MOWERTONDEUSE A MONTURE AVANT
OPERATORS MANUAL
MANUEL DUTILISATION
1
PLEASE READ CAREFULLYThis Operators Manual has been prepared to provide the information you need to correctly assemble operate andmaintain your Mower For maximum satisfaction carefully read and follow the instructions in this manual Shouldyou ever need repair parts or service contact your SHIBAURA DEALER
Be sure safety precautions are observed They are for your benefit
Any references made in this Operators Manual concerning the right-or left-hand sides are determined by thedirection the owner is facing when in the seat
The replacement of any part on this product by other than the manufacturers authorized replacement part mayadversely affect the performance durability or safety of this product
The manufacturer reserves the right to make changes on and to add improvements upon its product at any timewithout notice or obligation The manufacturer also reserves the right to discontinue manufacture of any product atits discretion at any time
A PRODUCT IDENTIFICATION PLATE is located on the left-hand side of the Mower Thenumbers on the plate are important should your Mower require future service For yourconvenience have your dealer record the numbers in the appropriate spaces below
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CONTENTS
SAFETY RULESmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 3-7
SAFETY AND INSTRUCTION DECALS middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 8-10
COMPONENTmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 11
UNPACKING AND ASSEMBLY middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 12-16
OPERATIONmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 17-27ATTACHING THE MOWERmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 17-19
MOWER OPERATIONmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 20-24
CUTTING SPEED middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot24
GRASS DISCHARGE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot25
MOWING PATTERNSmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 26-27
LUBRICATION AND MAINTENANCE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 28-42LUBRICATION AND MAINTENANCE CHART middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot28
29GENERAL MAINTENANCE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot30
LUBRICATION middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 31-32
BLADE REPLACEMENT AND SHARPENING middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 33-36
BELT MAINTENANCE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot37
BELT REPLACEMENTmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 37-38
STORING THE MOWERmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot38
TROUBLESHOOTING middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 39-40
GENERAL TORQUE SPECIFICATION TABLEmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot41
SPECIFICATIONS middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 43
3
SAFETY RULES
1 SAFETY RULES
Please pay particular attention to all boxed-parts in the text which have the sign
This sign warns you to be careful when carrying out certain functions
DANGERIndicates serious injury or death WILL result if instructions are not followed
WARNINGIndicates a strong possibility that serious injury or death could result if instructions are not followed
CAUTIONIndicates a possibility that minor injury can result if instructions are not followed
NOTE Gives helpful information
Labels attached to certain parts of the Mower give important safety information
Please read them carefully Should a label detach itself or become illegible contact your dealer for a replacement
SAFETY INSTRUCTIONS
A) TRAINING
1) Read the instructions carefully Be familiar with the controls and the proper use of the equipment Learn howto stop the engine quickly
2) Only use the Mower for the purpose for which it was made that is the cutting and collection of grass Any usenot specifically indicated in the instruction handbook can be dangerous and result in damage to the machineand will also result in the annulling of the warranty and the manufacturer declining all responsibility
3) Never allow children or people unfamiliar with these instructions to use the Mower Local regulations mayrestrict the age of the operator
4) Never use the Mower
- When people especially children or pets are nearby
- If the operator has taken medicine or substances that can affect his ability to react and concentrate
5) Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people ortheir property
6) Do not carry passengers
7) The operator of a Mower must carefully follow the driving instructions particularly
- The need for care and concentration when using Mowers
- That control of a Mower sliding on a slope will not be regained by the application of the brake
The main reasons for loss of control are
- Insufficient wheel grip
- Being driven too fast
- Inadequate braking
- The type of machine is unsuitable for its task
- Lack of awareness of the effect of ground conditions especially slopes
- Incorrect hitching and load distribution
4
SAFETY RULES
8) The Mower is equipped with a series of safety micro-switches and devices which must never be removedaltered or tampered with Removing these devices invalidates the warranty and the manufacture declinesany responsibility
B) PREPARATION
1) While mowing always wear substantial footwear and long trousers Do not operate the equipment whenbarefoot or wearing open sandals
2) Thoroughly inspect the area where the equipment is to be used and remove all objects which may bethrown by the machine (stones sticks metal wire bones etc)
3) Before usingalways carry out a visual inspection particularly of the blades seeing that the screws andcutter assembly are not worn or damaged Replace worn or damaged blades and screws in sets topreserve balance
4) Take care as the rotation of one blade can cause the other blade to turn
C) OPERATION
1) Mow only in daylight or good artificial light
2) Avoid operating the equipment in wet grass where feasible
3) Please consult machine operatorrsquos manual for details on operation on slopes
4) Remember there is no such thing as a safe slopeTravel on grass slopes requires particular care To guard against overturning
- It is advisable to use a front counterweight (supplied on request)
- Do not stop or start suddenly when going up or downhill
- Always keep the machine in gear especially when travelling downhill
- Machine speeds should be kept low on slopes and during tight turns
- Stay alert for humps and hollows and other hidden hazards
- Never mow across the face of the slope
5) Stop the blades rotating before crossing surfaces other than grass When moving the Mower away fromthe lawn disengages the blades and put the cutting plate into the highest position
6) Never operate the Mower as a lawn mower with defective guards or without safety devices for exampledeflectors andor grass catchers in place
7) Before leaving the operators position
- Disengage the blades and lower the Mower
8) Disengage blades stop the engine and remove key
- Before carrying out any work beneath the cutting deck or unclogging the chute
- Before checking cleaning or working on Mower
- After striking a foreign object Inspect the Mower for damage and make repairs before restartingand operating the Mower
- If the Mower starts to vibrate abnormally (immediately check and remove the cause of thevibration)
5
SAFETY RULES
9) Disengage drive to blades when transporting or not in use Disengage the blades for them to stop beforeemptying the grass-catcher
10) Stop the engine and disengage blades
a Every time the grass-catcher is removed or replaced
b Before making height adjustment
11) Do not put hands or feet near or under rotating parts Keep clear of the discharge opening at all times
D) MAINTENANCE AND STORAGE
1) Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Regularmaintenance is essential for safety and for maintaining performance levels
2) Allow the engine to cool before storing in an enclosed space
3) Check the deflector and grass-catcher frequently for wear and deterioration
4) For reasons of safety do not use the equipment with worn or damaged parts Parts are to be replaced and notrepaired Use genuine spare parts Parts which are not of an equivalent quality can damage the equipmentand be dangerous for your safety
5) Wear strong work gloves when removing and reassembling the blades
6) Check the blades balance after sharpening
7) Take care as the rotation of one blade can cause the other blade to turn
8) When the machine is to be parked stored or left unattended lower the cutting means
9) Before any maintenance or repair remove the ignition key
6
SAFETY AND INSTRUCTION DECALS
Your Mower must be used with care Therefore decals have been placed on the machine to remind you pictoriallyof main precautions to take during use Their meaning is explained below
We also strongly recommend to carefully read the safety instructions given in the concerned chapter of thismanual
Should a decal detach itself or become illegible contact your dealer for a replacement
Do not put hands or feet near or under the opening of the Mower while engine is running
Keep other people at a distance while using
Never reach into rotating parts when engine is running
7
SAFETY AND INSTRUCTION DECALS
Do not open or remove safety shields while engine is running
Do not operate without either discharge deflector or entire grass catcher in place
8
EXPLANATIONS OF SYMBOLS AND PICTOGRAMS
CUTTING HEIGHT
RIGHT SIDE
LEFT SIDE
MACHINE IDENTIFICATION PLATE
① CE Conformity mark② Year of manufacture③ Weight in kgs④ Name and address of manufacturer⑤ Type of cutter-deck⑥ Serial number
① ⑤
④ ② ⑥ ③
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
1
PLEASE READ CAREFULLYThis Operators Manual has been prepared to provide the information you need to correctly assemble operate andmaintain your Mower For maximum satisfaction carefully read and follow the instructions in this manual Shouldyou ever need repair parts or service contact your SHIBAURA DEALER
Be sure safety precautions are observed They are for your benefit
Any references made in this Operators Manual concerning the right-or left-hand sides are determined by thedirection the owner is facing when in the seat
The replacement of any part on this product by other than the manufacturers authorized replacement part mayadversely affect the performance durability or safety of this product
The manufacturer reserves the right to make changes on and to add improvements upon its product at any timewithout notice or obligation The manufacturer also reserves the right to discontinue manufacture of any product atits discretion at any time
A PRODUCT IDENTIFICATION PLATE is located on the left-hand side of the Mower Thenumbers on the plate are important should your Mower require future service For yourconvenience have your dealer record the numbers in the appropriate spaces below
2
CONTENTS
SAFETY RULESmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 3-7
SAFETY AND INSTRUCTION DECALS middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 8-10
COMPONENTmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 11
UNPACKING AND ASSEMBLY middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 12-16
OPERATIONmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 17-27ATTACHING THE MOWERmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 17-19
MOWER OPERATIONmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 20-24
CUTTING SPEED middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot24
GRASS DISCHARGE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot25
MOWING PATTERNSmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 26-27
LUBRICATION AND MAINTENANCE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 28-42LUBRICATION AND MAINTENANCE CHART middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot28
29GENERAL MAINTENANCE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot30
LUBRICATION middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 31-32
BLADE REPLACEMENT AND SHARPENING middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 33-36
BELT MAINTENANCE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot37
BELT REPLACEMENTmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 37-38
STORING THE MOWERmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot38
TROUBLESHOOTING middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 39-40
GENERAL TORQUE SPECIFICATION TABLEmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot41
SPECIFICATIONS middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 43
3
SAFETY RULES
1 SAFETY RULES
Please pay particular attention to all boxed-parts in the text which have the sign
This sign warns you to be careful when carrying out certain functions
DANGERIndicates serious injury or death WILL result if instructions are not followed
WARNINGIndicates a strong possibility that serious injury or death could result if instructions are not followed
CAUTIONIndicates a possibility that minor injury can result if instructions are not followed
NOTE Gives helpful information
Labels attached to certain parts of the Mower give important safety information
Please read them carefully Should a label detach itself or become illegible contact your dealer for a replacement
SAFETY INSTRUCTIONS
A) TRAINING
1) Read the instructions carefully Be familiar with the controls and the proper use of the equipment Learn howto stop the engine quickly
2) Only use the Mower for the purpose for which it was made that is the cutting and collection of grass Any usenot specifically indicated in the instruction handbook can be dangerous and result in damage to the machineand will also result in the annulling of the warranty and the manufacturer declining all responsibility
3) Never allow children or people unfamiliar with these instructions to use the Mower Local regulations mayrestrict the age of the operator
4) Never use the Mower
- When people especially children or pets are nearby
- If the operator has taken medicine or substances that can affect his ability to react and concentrate
5) Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people ortheir property
6) Do not carry passengers
7) The operator of a Mower must carefully follow the driving instructions particularly
- The need for care and concentration when using Mowers
- That control of a Mower sliding on a slope will not be regained by the application of the brake
The main reasons for loss of control are
- Insufficient wheel grip
- Being driven too fast
- Inadequate braking
- The type of machine is unsuitable for its task
- Lack of awareness of the effect of ground conditions especially slopes
- Incorrect hitching and load distribution
4
SAFETY RULES
8) The Mower is equipped with a series of safety micro-switches and devices which must never be removedaltered or tampered with Removing these devices invalidates the warranty and the manufacture declinesany responsibility
B) PREPARATION
1) While mowing always wear substantial footwear and long trousers Do not operate the equipment whenbarefoot or wearing open sandals
2) Thoroughly inspect the area where the equipment is to be used and remove all objects which may bethrown by the machine (stones sticks metal wire bones etc)
3) Before usingalways carry out a visual inspection particularly of the blades seeing that the screws andcutter assembly are not worn or damaged Replace worn or damaged blades and screws in sets topreserve balance
4) Take care as the rotation of one blade can cause the other blade to turn
C) OPERATION
1) Mow only in daylight or good artificial light
2) Avoid operating the equipment in wet grass where feasible
3) Please consult machine operatorrsquos manual for details on operation on slopes
4) Remember there is no such thing as a safe slopeTravel on grass slopes requires particular care To guard against overturning
- It is advisable to use a front counterweight (supplied on request)
- Do not stop or start suddenly when going up or downhill
- Always keep the machine in gear especially when travelling downhill
- Machine speeds should be kept low on slopes and during tight turns
- Stay alert for humps and hollows and other hidden hazards
- Never mow across the face of the slope
5) Stop the blades rotating before crossing surfaces other than grass When moving the Mower away fromthe lawn disengages the blades and put the cutting plate into the highest position
6) Never operate the Mower as a lawn mower with defective guards or without safety devices for exampledeflectors andor grass catchers in place
7) Before leaving the operators position
- Disengage the blades and lower the Mower
8) Disengage blades stop the engine and remove key
- Before carrying out any work beneath the cutting deck or unclogging the chute
- Before checking cleaning or working on Mower
- After striking a foreign object Inspect the Mower for damage and make repairs before restartingand operating the Mower
- If the Mower starts to vibrate abnormally (immediately check and remove the cause of thevibration)
5
SAFETY RULES
9) Disengage drive to blades when transporting or not in use Disengage the blades for them to stop beforeemptying the grass-catcher
10) Stop the engine and disengage blades
a Every time the grass-catcher is removed or replaced
b Before making height adjustment
11) Do not put hands or feet near or under rotating parts Keep clear of the discharge opening at all times
D) MAINTENANCE AND STORAGE
1) Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Regularmaintenance is essential for safety and for maintaining performance levels
2) Allow the engine to cool before storing in an enclosed space
3) Check the deflector and grass-catcher frequently for wear and deterioration
4) For reasons of safety do not use the equipment with worn or damaged parts Parts are to be replaced and notrepaired Use genuine spare parts Parts which are not of an equivalent quality can damage the equipmentand be dangerous for your safety
5) Wear strong work gloves when removing and reassembling the blades
6) Check the blades balance after sharpening
7) Take care as the rotation of one blade can cause the other blade to turn
8) When the machine is to be parked stored or left unattended lower the cutting means
9) Before any maintenance or repair remove the ignition key
6
SAFETY AND INSTRUCTION DECALS
Your Mower must be used with care Therefore decals have been placed on the machine to remind you pictoriallyof main precautions to take during use Their meaning is explained below
We also strongly recommend to carefully read the safety instructions given in the concerned chapter of thismanual
Should a decal detach itself or become illegible contact your dealer for a replacement
Do not put hands or feet near or under the opening of the Mower while engine is running
Keep other people at a distance while using
Never reach into rotating parts when engine is running
7
SAFETY AND INSTRUCTION DECALS
Do not open or remove safety shields while engine is running
Do not operate without either discharge deflector or entire grass catcher in place
8
EXPLANATIONS OF SYMBOLS AND PICTOGRAMS
CUTTING HEIGHT
RIGHT SIDE
LEFT SIDE
MACHINE IDENTIFICATION PLATE
① CE Conformity mark② Year of manufacture③ Weight in kgs④ Name and address of manufacturer⑤ Type of cutter-deck⑥ Serial number
① ⑤
④ ② ⑥ ③
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
2
CONTENTS
SAFETY RULESmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 3-7
SAFETY AND INSTRUCTION DECALS middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 8-10
COMPONENTmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 11
UNPACKING AND ASSEMBLY middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 12-16
OPERATIONmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 17-27ATTACHING THE MOWERmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 17-19
MOWER OPERATIONmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 20-24
CUTTING SPEED middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot24
GRASS DISCHARGE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot25
MOWING PATTERNSmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 26-27
LUBRICATION AND MAINTENANCE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 28-42LUBRICATION AND MAINTENANCE CHART middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot28
29GENERAL MAINTENANCE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot30
LUBRICATION middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 31-32
BLADE REPLACEMENT AND SHARPENING middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 33-36
BELT MAINTENANCE middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot37
BELT REPLACEMENTmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 37-38
STORING THE MOWERmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot38
TROUBLESHOOTING middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 39-40
GENERAL TORQUE SPECIFICATION TABLEmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot41
SPECIFICATIONS middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 43
3
SAFETY RULES
1 SAFETY RULES
Please pay particular attention to all boxed-parts in the text which have the sign
This sign warns you to be careful when carrying out certain functions
DANGERIndicates serious injury or death WILL result if instructions are not followed
WARNINGIndicates a strong possibility that serious injury or death could result if instructions are not followed
CAUTIONIndicates a possibility that minor injury can result if instructions are not followed
NOTE Gives helpful information
Labels attached to certain parts of the Mower give important safety information
Please read them carefully Should a label detach itself or become illegible contact your dealer for a replacement
SAFETY INSTRUCTIONS
A) TRAINING
1) Read the instructions carefully Be familiar with the controls and the proper use of the equipment Learn howto stop the engine quickly
2) Only use the Mower for the purpose for which it was made that is the cutting and collection of grass Any usenot specifically indicated in the instruction handbook can be dangerous and result in damage to the machineand will also result in the annulling of the warranty and the manufacturer declining all responsibility
3) Never allow children or people unfamiliar with these instructions to use the Mower Local regulations mayrestrict the age of the operator
4) Never use the Mower
- When people especially children or pets are nearby
- If the operator has taken medicine or substances that can affect his ability to react and concentrate
5) Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people ortheir property
6) Do not carry passengers
7) The operator of a Mower must carefully follow the driving instructions particularly
- The need for care and concentration when using Mowers
- That control of a Mower sliding on a slope will not be regained by the application of the brake
The main reasons for loss of control are
- Insufficient wheel grip
- Being driven too fast
- Inadequate braking
- The type of machine is unsuitable for its task
- Lack of awareness of the effect of ground conditions especially slopes
- Incorrect hitching and load distribution
4
SAFETY RULES
8) The Mower is equipped with a series of safety micro-switches and devices which must never be removedaltered or tampered with Removing these devices invalidates the warranty and the manufacture declinesany responsibility
B) PREPARATION
1) While mowing always wear substantial footwear and long trousers Do not operate the equipment whenbarefoot or wearing open sandals
2) Thoroughly inspect the area where the equipment is to be used and remove all objects which may bethrown by the machine (stones sticks metal wire bones etc)
3) Before usingalways carry out a visual inspection particularly of the blades seeing that the screws andcutter assembly are not worn or damaged Replace worn or damaged blades and screws in sets topreserve balance
4) Take care as the rotation of one blade can cause the other blade to turn
C) OPERATION
1) Mow only in daylight or good artificial light
2) Avoid operating the equipment in wet grass where feasible
3) Please consult machine operatorrsquos manual for details on operation on slopes
4) Remember there is no such thing as a safe slopeTravel on grass slopes requires particular care To guard against overturning
- It is advisable to use a front counterweight (supplied on request)
- Do not stop or start suddenly when going up or downhill
- Always keep the machine in gear especially when travelling downhill
- Machine speeds should be kept low on slopes and during tight turns
- Stay alert for humps and hollows and other hidden hazards
- Never mow across the face of the slope
5) Stop the blades rotating before crossing surfaces other than grass When moving the Mower away fromthe lawn disengages the blades and put the cutting plate into the highest position
6) Never operate the Mower as a lawn mower with defective guards or without safety devices for exampledeflectors andor grass catchers in place
7) Before leaving the operators position
- Disengage the blades and lower the Mower
8) Disengage blades stop the engine and remove key
- Before carrying out any work beneath the cutting deck or unclogging the chute
- Before checking cleaning or working on Mower
- After striking a foreign object Inspect the Mower for damage and make repairs before restartingand operating the Mower
- If the Mower starts to vibrate abnormally (immediately check and remove the cause of thevibration)
5
SAFETY RULES
9) Disengage drive to blades when transporting or not in use Disengage the blades for them to stop beforeemptying the grass-catcher
10) Stop the engine and disengage blades
a Every time the grass-catcher is removed or replaced
b Before making height adjustment
11) Do not put hands or feet near or under rotating parts Keep clear of the discharge opening at all times
D) MAINTENANCE AND STORAGE
1) Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Regularmaintenance is essential for safety and for maintaining performance levels
2) Allow the engine to cool before storing in an enclosed space
3) Check the deflector and grass-catcher frequently for wear and deterioration
4) For reasons of safety do not use the equipment with worn or damaged parts Parts are to be replaced and notrepaired Use genuine spare parts Parts which are not of an equivalent quality can damage the equipmentand be dangerous for your safety
5) Wear strong work gloves when removing and reassembling the blades
6) Check the blades balance after sharpening
7) Take care as the rotation of one blade can cause the other blade to turn
8) When the machine is to be parked stored or left unattended lower the cutting means
9) Before any maintenance or repair remove the ignition key
6
SAFETY AND INSTRUCTION DECALS
Your Mower must be used with care Therefore decals have been placed on the machine to remind you pictoriallyof main precautions to take during use Their meaning is explained below
We also strongly recommend to carefully read the safety instructions given in the concerned chapter of thismanual
Should a decal detach itself or become illegible contact your dealer for a replacement
Do not put hands or feet near or under the opening of the Mower while engine is running
Keep other people at a distance while using
Never reach into rotating parts when engine is running
7
SAFETY AND INSTRUCTION DECALS
Do not open or remove safety shields while engine is running
Do not operate without either discharge deflector or entire grass catcher in place
8
EXPLANATIONS OF SYMBOLS AND PICTOGRAMS
CUTTING HEIGHT
RIGHT SIDE
LEFT SIDE
MACHINE IDENTIFICATION PLATE
① CE Conformity mark② Year of manufacture③ Weight in kgs④ Name and address of manufacturer⑤ Type of cutter-deck⑥ Serial number
① ⑤
④ ② ⑥ ③
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
3
SAFETY RULES
1 SAFETY RULES
Please pay particular attention to all boxed-parts in the text which have the sign
This sign warns you to be careful when carrying out certain functions
DANGERIndicates serious injury or death WILL result if instructions are not followed
WARNINGIndicates a strong possibility that serious injury or death could result if instructions are not followed
CAUTIONIndicates a possibility that minor injury can result if instructions are not followed
NOTE Gives helpful information
Labels attached to certain parts of the Mower give important safety information
Please read them carefully Should a label detach itself or become illegible contact your dealer for a replacement
SAFETY INSTRUCTIONS
A) TRAINING
1) Read the instructions carefully Be familiar with the controls and the proper use of the equipment Learn howto stop the engine quickly
2) Only use the Mower for the purpose for which it was made that is the cutting and collection of grass Any usenot specifically indicated in the instruction handbook can be dangerous and result in damage to the machineand will also result in the annulling of the warranty and the manufacturer declining all responsibility
3) Never allow children or people unfamiliar with these instructions to use the Mower Local regulations mayrestrict the age of the operator
4) Never use the Mower
- When people especially children or pets are nearby
- If the operator has taken medicine or substances that can affect his ability to react and concentrate
5) Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people ortheir property
6) Do not carry passengers
7) The operator of a Mower must carefully follow the driving instructions particularly
- The need for care and concentration when using Mowers
- That control of a Mower sliding on a slope will not be regained by the application of the brake
The main reasons for loss of control are
- Insufficient wheel grip
- Being driven too fast
- Inadequate braking
- The type of machine is unsuitable for its task
- Lack of awareness of the effect of ground conditions especially slopes
- Incorrect hitching and load distribution
4
SAFETY RULES
8) The Mower is equipped with a series of safety micro-switches and devices which must never be removedaltered or tampered with Removing these devices invalidates the warranty and the manufacture declinesany responsibility
B) PREPARATION
1) While mowing always wear substantial footwear and long trousers Do not operate the equipment whenbarefoot or wearing open sandals
2) Thoroughly inspect the area where the equipment is to be used and remove all objects which may bethrown by the machine (stones sticks metal wire bones etc)
3) Before usingalways carry out a visual inspection particularly of the blades seeing that the screws andcutter assembly are not worn or damaged Replace worn or damaged blades and screws in sets topreserve balance
4) Take care as the rotation of one blade can cause the other blade to turn
C) OPERATION
1) Mow only in daylight or good artificial light
2) Avoid operating the equipment in wet grass where feasible
3) Please consult machine operatorrsquos manual for details on operation on slopes
4) Remember there is no such thing as a safe slopeTravel on grass slopes requires particular care To guard against overturning
- It is advisable to use a front counterweight (supplied on request)
- Do not stop or start suddenly when going up or downhill
- Always keep the machine in gear especially when travelling downhill
- Machine speeds should be kept low on slopes and during tight turns
- Stay alert for humps and hollows and other hidden hazards
- Never mow across the face of the slope
5) Stop the blades rotating before crossing surfaces other than grass When moving the Mower away fromthe lawn disengages the blades and put the cutting plate into the highest position
6) Never operate the Mower as a lawn mower with defective guards or without safety devices for exampledeflectors andor grass catchers in place
7) Before leaving the operators position
- Disengage the blades and lower the Mower
8) Disengage blades stop the engine and remove key
- Before carrying out any work beneath the cutting deck or unclogging the chute
- Before checking cleaning or working on Mower
- After striking a foreign object Inspect the Mower for damage and make repairs before restartingand operating the Mower
- If the Mower starts to vibrate abnormally (immediately check and remove the cause of thevibration)
5
SAFETY RULES
9) Disengage drive to blades when transporting or not in use Disengage the blades for them to stop beforeemptying the grass-catcher
10) Stop the engine and disengage blades
a Every time the grass-catcher is removed or replaced
b Before making height adjustment
11) Do not put hands or feet near or under rotating parts Keep clear of the discharge opening at all times
D) MAINTENANCE AND STORAGE
1) Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Regularmaintenance is essential for safety and for maintaining performance levels
2) Allow the engine to cool before storing in an enclosed space
3) Check the deflector and grass-catcher frequently for wear and deterioration
4) For reasons of safety do not use the equipment with worn or damaged parts Parts are to be replaced and notrepaired Use genuine spare parts Parts which are not of an equivalent quality can damage the equipmentand be dangerous for your safety
5) Wear strong work gloves when removing and reassembling the blades
6) Check the blades balance after sharpening
7) Take care as the rotation of one blade can cause the other blade to turn
8) When the machine is to be parked stored or left unattended lower the cutting means
9) Before any maintenance or repair remove the ignition key
6
SAFETY AND INSTRUCTION DECALS
Your Mower must be used with care Therefore decals have been placed on the machine to remind you pictoriallyof main precautions to take during use Their meaning is explained below
We also strongly recommend to carefully read the safety instructions given in the concerned chapter of thismanual
Should a decal detach itself or become illegible contact your dealer for a replacement
Do not put hands or feet near or under the opening of the Mower while engine is running
Keep other people at a distance while using
Never reach into rotating parts when engine is running
7
SAFETY AND INSTRUCTION DECALS
Do not open or remove safety shields while engine is running
Do not operate without either discharge deflector or entire grass catcher in place
8
EXPLANATIONS OF SYMBOLS AND PICTOGRAMS
CUTTING HEIGHT
RIGHT SIDE
LEFT SIDE
MACHINE IDENTIFICATION PLATE
① CE Conformity mark② Year of manufacture③ Weight in kgs④ Name and address of manufacturer⑤ Type of cutter-deck⑥ Serial number
① ⑤
④ ② ⑥ ③
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
4
SAFETY RULES
8) The Mower is equipped with a series of safety micro-switches and devices which must never be removedaltered or tampered with Removing these devices invalidates the warranty and the manufacture declinesany responsibility
B) PREPARATION
1) While mowing always wear substantial footwear and long trousers Do not operate the equipment whenbarefoot or wearing open sandals
2) Thoroughly inspect the area where the equipment is to be used and remove all objects which may bethrown by the machine (stones sticks metal wire bones etc)
3) Before usingalways carry out a visual inspection particularly of the blades seeing that the screws andcutter assembly are not worn or damaged Replace worn or damaged blades and screws in sets topreserve balance
4) Take care as the rotation of one blade can cause the other blade to turn
C) OPERATION
1) Mow only in daylight or good artificial light
2) Avoid operating the equipment in wet grass where feasible
3) Please consult machine operatorrsquos manual for details on operation on slopes
4) Remember there is no such thing as a safe slopeTravel on grass slopes requires particular care To guard against overturning
- It is advisable to use a front counterweight (supplied on request)
- Do not stop or start suddenly when going up or downhill
- Always keep the machine in gear especially when travelling downhill
- Machine speeds should be kept low on slopes and during tight turns
- Stay alert for humps and hollows and other hidden hazards
- Never mow across the face of the slope
5) Stop the blades rotating before crossing surfaces other than grass When moving the Mower away fromthe lawn disengages the blades and put the cutting plate into the highest position
6) Never operate the Mower as a lawn mower with defective guards or without safety devices for exampledeflectors andor grass catchers in place
7) Before leaving the operators position
- Disengage the blades and lower the Mower
8) Disengage blades stop the engine and remove key
- Before carrying out any work beneath the cutting deck or unclogging the chute
- Before checking cleaning or working on Mower
- After striking a foreign object Inspect the Mower for damage and make repairs before restartingand operating the Mower
- If the Mower starts to vibrate abnormally (immediately check and remove the cause of thevibration)
5
SAFETY RULES
9) Disengage drive to blades when transporting or not in use Disengage the blades for them to stop beforeemptying the grass-catcher
10) Stop the engine and disengage blades
a Every time the grass-catcher is removed or replaced
b Before making height adjustment
11) Do not put hands or feet near or under rotating parts Keep clear of the discharge opening at all times
D) MAINTENANCE AND STORAGE
1) Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Regularmaintenance is essential for safety and for maintaining performance levels
2) Allow the engine to cool before storing in an enclosed space
3) Check the deflector and grass-catcher frequently for wear and deterioration
4) For reasons of safety do not use the equipment with worn or damaged parts Parts are to be replaced and notrepaired Use genuine spare parts Parts which are not of an equivalent quality can damage the equipmentand be dangerous for your safety
5) Wear strong work gloves when removing and reassembling the blades
6) Check the blades balance after sharpening
7) Take care as the rotation of one blade can cause the other blade to turn
8) When the machine is to be parked stored or left unattended lower the cutting means
9) Before any maintenance or repair remove the ignition key
6
SAFETY AND INSTRUCTION DECALS
Your Mower must be used with care Therefore decals have been placed on the machine to remind you pictoriallyof main precautions to take during use Their meaning is explained below
We also strongly recommend to carefully read the safety instructions given in the concerned chapter of thismanual
Should a decal detach itself or become illegible contact your dealer for a replacement
Do not put hands or feet near or under the opening of the Mower while engine is running
Keep other people at a distance while using
Never reach into rotating parts when engine is running
7
SAFETY AND INSTRUCTION DECALS
Do not open or remove safety shields while engine is running
Do not operate without either discharge deflector or entire grass catcher in place
8
EXPLANATIONS OF SYMBOLS AND PICTOGRAMS
CUTTING HEIGHT
RIGHT SIDE
LEFT SIDE
MACHINE IDENTIFICATION PLATE
① CE Conformity mark② Year of manufacture③ Weight in kgs④ Name and address of manufacturer⑤ Type of cutter-deck⑥ Serial number
① ⑤
④ ② ⑥ ③
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
5
SAFETY RULES
9) Disengage drive to blades when transporting or not in use Disengage the blades for them to stop beforeemptying the grass-catcher
10) Stop the engine and disengage blades
a Every time the grass-catcher is removed or replaced
b Before making height adjustment
11) Do not put hands or feet near or under rotating parts Keep clear of the discharge opening at all times
D) MAINTENANCE AND STORAGE
1) Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Regularmaintenance is essential for safety and for maintaining performance levels
2) Allow the engine to cool before storing in an enclosed space
3) Check the deflector and grass-catcher frequently for wear and deterioration
4) For reasons of safety do not use the equipment with worn or damaged parts Parts are to be replaced and notrepaired Use genuine spare parts Parts which are not of an equivalent quality can damage the equipmentand be dangerous for your safety
5) Wear strong work gloves when removing and reassembling the blades
6) Check the blades balance after sharpening
7) Take care as the rotation of one blade can cause the other blade to turn
8) When the machine is to be parked stored or left unattended lower the cutting means
9) Before any maintenance or repair remove the ignition key
6
SAFETY AND INSTRUCTION DECALS
Your Mower must be used with care Therefore decals have been placed on the machine to remind you pictoriallyof main precautions to take during use Their meaning is explained below
We also strongly recommend to carefully read the safety instructions given in the concerned chapter of thismanual
Should a decal detach itself or become illegible contact your dealer for a replacement
Do not put hands or feet near or under the opening of the Mower while engine is running
Keep other people at a distance while using
Never reach into rotating parts when engine is running
7
SAFETY AND INSTRUCTION DECALS
Do not open or remove safety shields while engine is running
Do not operate without either discharge deflector or entire grass catcher in place
8
EXPLANATIONS OF SYMBOLS AND PICTOGRAMS
CUTTING HEIGHT
RIGHT SIDE
LEFT SIDE
MACHINE IDENTIFICATION PLATE
① CE Conformity mark② Year of manufacture③ Weight in kgs④ Name and address of manufacturer⑤ Type of cutter-deck⑥ Serial number
① ⑤
④ ② ⑥ ③
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
6
SAFETY AND INSTRUCTION DECALS
Your Mower must be used with care Therefore decals have been placed on the machine to remind you pictoriallyof main precautions to take during use Their meaning is explained below
We also strongly recommend to carefully read the safety instructions given in the concerned chapter of thismanual
Should a decal detach itself or become illegible contact your dealer for a replacement
Do not put hands or feet near or under the opening of the Mower while engine is running
Keep other people at a distance while using
Never reach into rotating parts when engine is running
7
SAFETY AND INSTRUCTION DECALS
Do not open or remove safety shields while engine is running
Do not operate without either discharge deflector or entire grass catcher in place
8
EXPLANATIONS OF SYMBOLS AND PICTOGRAMS
CUTTING HEIGHT
RIGHT SIDE
LEFT SIDE
MACHINE IDENTIFICATION PLATE
① CE Conformity mark② Year of manufacture③ Weight in kgs④ Name and address of manufacturer⑤ Type of cutter-deck⑥ Serial number
① ⑤
④ ② ⑥ ③
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
7
SAFETY AND INSTRUCTION DECALS
Do not open or remove safety shields while engine is running
Do not operate without either discharge deflector or entire grass catcher in place
8
EXPLANATIONS OF SYMBOLS AND PICTOGRAMS
CUTTING HEIGHT
RIGHT SIDE
LEFT SIDE
MACHINE IDENTIFICATION PLATE
① CE Conformity mark② Year of manufacture③ Weight in kgs④ Name and address of manufacturer⑤ Type of cutter-deck⑥ Serial number
① ⑤
④ ② ⑥ ③
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
8
EXPLANATIONS OF SYMBOLS AND PICTOGRAMS
CUTTING HEIGHT
RIGHT SIDE
LEFT SIDE
MACHINE IDENTIFICATION PLATE
① CE Conformity mark② Year of manufacture③ Weight in kgs④ Name and address of manufacturer⑤ Type of cutter-deck⑥ Serial number
① ⑤
④ ② ⑥ ③
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
9
COMPONENTS
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
10
UNPACKING AND ASSEMBLING
UNPACKING AND ASSEMBLING(to be done at your SHIBAURA dealer)For storage and transport reasons some components of the cutter-deck are not directly installed in our factory butthey have to be assembled by the customers
Unpacking
When unpacking the machine please carefully recover all single parts and fittings and do not damage the cuttingdeck when taking it off from the base pallet
Installation of gauge wheel ndash Figure 2
Install the front and rear gauge wheels with a pin① and snap ring②
Figure 2
Universal Joint Assembly (Figure 3)
1 Install the universal joint to the Mower Insert the front yoke ① of the universal joint to the input shaft of themower align the holes and secure the shaft with the joint using pin ② and split pin ③
Figure 3
①
②
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
11
UNPACKING AND ASSEMBLINGInstallation of links1 STM60RD-318324
1) Install the front bracket to the front wheel support with bolts nuts and spring washers through a collar
Figure 4
2) Install the rear bracket to the lower side of the transmission case
Figure 5
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
12
UNPACKING AND ASSEMBLING
3) Install the stopper and lift link to the lower side of the clutch case
Figure 6
4) Lower the lower link with the lift control lever and install the lift bracket to the lower link on the tractorInstall the lift rod to the bracket
Figure 7
5) Install the other edge of the lift rod to the lift armAttached to the lower side of the transmission caseFix the longer hole of the lift arm and lift link witha flat head pin
Figure 8
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
13
UNPACKING AND ASSEMBLING
2 STM60RD-329333
Note Install the lift kit in advance
1) Install the front bracket to the front wheel support
Figure 9
2) Install the stopper and bracket to the side of the transmission case and install the lift link etc to the lift kitattached to the lower side of the clutch case
Figure 10
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
14
UNPACKING AND ASSEMBLING
2 MM62DSGRD
1) Rotate the rear left caster wheel 90 degrees and push the deck under the tractor
Figure 11
2) Install the bracket to the chassis with the locating pins
Figure 12
3) Attached the lifting chain to the deck and the lift arms
Figure 13
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
15
UNPACKING AND ASSEMBLING
4) Attach the lift assist spring to the chassis and the deck
Figure 14
5) Install the front lift arms to the deck then to the locating points to the front of the tractor
Figure 15
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
17
OPERATION
ATTACHING THE MOWER
Installation of mower main body
Adjust the gauge wheel to the lowest cutting height (20mm) Position the rear gauge wheel at a right angle to thecutting direction
CAUTION Install or remove themower on a flat and clear place
1) Stop the tractor on the left side of the mower Turn the front wheel fully to the left Insert a block of about50mm under the front wheel to help installation and removal of the mower
Figure XX
2) Lift the lift link with the lift control lever on the tractor
3) Stop the engine and apply the parking brake
4) Push the mower to under the tractor paying attention to the piping link etc of the tractor
5) Lower the lift link with the lift control lever of the tractor
6) Fix the lift link to the mower with the pin
Figure XX STM60-318324
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
18
OPERATION
7) Install the front link to the bracket in front of the mower
Figure XX
8) Install the rotating part of the front link to the front bracket and pull up the lever until it is locked withthe lock pin
9) Install the universal joint to the tractorPush the universal joint all the way into the PTO shaft pulling the joint collar Then pull the joint andmake sure that the ball was fitted into the groove of the PTO shaft
Figure XX
Remove the mower in the reverse order to the installation
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
19
OPERATION
MOWER OPERATIONIMPORTANT Lack of operating knowledge can lead to accidents Learn all Tractor and Mower controls andhow they work
DANGER To avoid personal injury Do not operate the Mower
without discharge flap
MAKING THE MOST OF YOUR MOWER
1 When using your Mower for the first time choose a smooth level area and cut in straight and slightlyoverlapping strips
2 The size and type of the area to be mowed will determine the proper mowing pattern Take into accountobstructions such as trees fences and buildings To keep grass cuttings off fences sidewalks etc it isadvisable to go around the outside of the area to be mowed several times in a clockwise direction Tomow the area remaining work in a counterclockwise direction so the cuttings are dispersed onto thepreviously cut area
3 Always keep the left side Trimming side of the Mower toward trees posts or other obstacles on the firsttrip around the obstacle
4 Most lawns should be mowed to keep the grass approximately 50 ndash 75 mm high Best results areobtained by cutting often and not too short To keep a green lawn never mow more than one third off theheight of the grass or a maximum of 25 mm in one mowing For extremely tall grass set the cutting heightat maximum for the first mowing then reset to the desired height and mow again Allow the grass to growto 75 mm then cut off only the top
5 On thick or springy or soft ground the Mower wheels may sink into the ground giving too low a cutReadjust the cutting height to obtain the desired height of cut
6 For best appearance grass should be cut only when it is free of moisture
WARNING Some illustrations in themanual show the Mower with safetyview The Mower should never beoperated with any safety shieldingremoved
Adjusting procedureCheck and adjust the mower in the following procedure before starting its operation for smooth cuttingoperation
WARNING Before startingadjustment be sure to stop theengine and make sure that thecutting blade has stopped rotating
1) Stop the tractor on a flat space and apply the parking brakes
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
20
OPERATION
2) Lift the mower with the lift control lever of the tractor
3) Stop the engine
4) Adjust the front gauge wheel rear gauge wheel and anti-scalp roller to obtain the desired cuttingheight Refer to page 22 CUTTING HEIGHTS for the cutting height adjustment
5) Lower the mower with the lift control lever on the tractor
6) Check to see that all the gauge wheels touch the ground If not adjust the front link length Whenadjusted correctly the pin fixing the mower deck and front link can be easily pulled out
7) Start the engine an lift the mower with the lift control lever of the tractor to the highest position
8) Stop the engine
9) Adjust the lift rod length so that the gap between the plate on the mower deck side and the stopper onthe tractor side is about 5mm (STM60-318324 only)
Figure 18
CUTTING HEIGHTSThis Mower can be adjusted to cut from 25 mm to 102 mm high Cutting heights should be determined by cuttingconditions and personal preference
The following recommendations will provide a guide for height selection
Lawns 50 ndash 70 mmField cutting 60 ndash 100 mm
To change from one cutting height to another it is necessary to adjust the gauge wheels and Anti-scalp roller
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
21
OPERATION
GAUGE WHEELS
1 Start the engine and rise the Mower by the hydraulic control lever
2 Stop the engine remove the key and apply the parking brake
3 After determining the desired cutting height as shown in Figure 19 remove the pin securing the gauge wheelsand reinstall the pin in the desired position
4 Make sure that the gauge wheels are secured
25 mm (1) X-E X-E
34 mm (138) Y-F Y-F
42 mm (158) X-D X-D
51 mm (2) Y-E Y-E
59 mm (238) X-C X-C
68 mm (258) Y-D Y-D
76 mm (3) X-B X-B
85 mm (338) Y-C Y-C
93 mm (358) X-A X-A
102 mm (4) Y-B Y-B
Figure XX
ANTI-SCALP ROLLERIn some cases the Mower may scalp while cutting grass on rough ground at low cutting height The anti-scalprollers are adjustable Set them at high position (A) when now less than cutting height (51 mm) and at lowposition (B) over cutting height (51 mm) Figure 16
Figure XX
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
22
OPERATION
CUTTING SPEEDFor best mowing results it is important that blades be run at maximum speed Set engine throttle lever in fullthrottle position thus providing proper blade speed and maximum engine horse-powerChoose a ground speed which will provide the desired finish cut maximum operator comfort and will not overloadthe Mower drive A slower ground speed will provide a smoother operating machine
UNEVEN TERRAIN
WARNING Be careful whenoperating Tractor and Mower onuneven ground
In extremely uneven terrain the front weights of Tractor should be used to improve stabilityPass diagonally through sharp dips and avoid sharp drops to prevent hanging up of the Tractor and Mower Practice willimprove your skills in maneuvering on rough terrainAvoid sudden starts and stops when traveling up or down hillAlways mow down slopes never up or across the face Avoid operation on steep slopesSlow down on sharp turns and slopes to prevent tipping or loss of control
GRASS DISCHARGEThis Mower was designed to provide a strong discharge to scatter clippings and prevent clogging in heavy cuttingsWhen cutting lush thick tall or wet grass shift to a slow ground speed setting andor reduce width of cut to preventpossible belt damage FOR BEST CUTTING DO NOT MOW WHEN GRASS IS WET Wet grass will causeclogging and produce unsightly clumpings on lawn
WARNING To avoid injury fromthrown objects keep discharge flapin position and secure at all times
The under side of Mower should becleaned out (sprayed with water)after operation with the enginestopped and blades not rotating
If Mower becomes clogged back unit out of uncut grass and try to clear deck by engaging the PTO If deck doesnot clear itself STOP engine remove starter key and clean underside of deck using a stick or scraper
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
23
OPERATION
MOWING PATTERNSThe proper mowing patterns should be determined by the size and shape of the areasThe typical mowing patterns are shown in Figure 21 through 23
Large Open Area (Figure 21)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow the lawn In half by mowing down the center Then turn counterclockwise to the left at edge of area overgrass previously cut
Figure XX
Small Area (Figure 22)
1 Mow two or three rounds clockwise along the edges of the area
2 Mow counterclockwise to finish
Figure XX
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
23
OPERATION
Uneven Area (Figure 23)
1 Divide uneven areas into sections
2 Change mowing pattern regularly
Figure xx
NOTE Mow counterclockwise when trimming around the trees or bushes
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
24
LUBRICATION AND MAINTENANCE
LUBRICATION AND MAINTENANCE CHART
NO LUBRICATION ampMAINTENANCE ITEMS
CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST
SERVICE INTERVALS NOLUBRICATION
ampMAINTENANCE
ITEMS CH
ECK
CLE
AN
LUB
E
CH
AN
GE
AD
JUST SERVICE
INTERVALS
89
10
Blade boltsBladesDischarge flap
timestimestimes
Every
Hours or Daily
1 Gear Box Oil times First
Hours
4 Belt Tension times times First
Hours
4 Belt Tension times times Every
Hours1
237
12
Gear Box Oil LevelLubrication FittingsSpindleRear Gauge WheelFront Gauge WheelCastor ArmUniversal Joint
times
timestimestimes
times
Every
Hours
61511
Mower DeckGear Box OilBeltIdler Arm Pivot
times
times
timestimes
Every
Hours
⑩
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
25
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
WARNING To avoid personal injurylower Mower to the ground turnengine off and remove key beforeperforming any maintenance Alwaysuse personal protection devices suchas eye and hearing protection whenperforming maintenance functions
To avoid personal injury when com-pleting a maintenance or servicefunction make sure all safety shieldsare in good condition and installedbefore placing Cutter-deck in service
Never work under equipment sup-ported by the Tractor Lift arms or anyother hydraulic device because it maydrop if the control is actuated (evenwith the engine stopped) or in theevent of failure Always use a securesupport for equipment which must beserviced while in the raised position
To avoid personal injury shut off theengine and wait until the equipmentstops turning before servicing
The Mower should be serviced according to the LUBRICATION AND MAINTENANCE CHART on page 28
Check the blade bolts blades and discharge deflector daily for damage or looseness Make a general visualinspection of the Mower for loose or damaged parts Check nuts and bolts periodically to insure against loosenesscaused by vibration or rough handling Damaged parts should be repaired or replaced before using the Moweragain
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
26
LUBRICATION AND MAINTENANCE
LUBRICATION
GEAR BOX OIL
Checking Gear Box Oil Level
Check the oil level every 25 hours
1 With the Mower leveling position and after the Mower has been stopped for a period of time check the oillevel at the oil level check port
Figure xx
2 If the oil level is lower than the plug add oil to the gear box through the filler hole Be careful not to overfill UseSAE 90 gear oil
3 Install the filler plug and oil level stick
Changing the Gear Box Oil
Change the oil after the first 50 hours of operation and every 200 hours as follows
1 Remove the mower from the tractor
2 Stand the more vertically and place a block to prevent the mower from falling down
3 Drain the oil by unscrewing the drain plug Discard the oil
4 With the Mower leveling position add new oil until the oil reaches to the oil level check port Use SAE 90 gearoil
5 Install the filler plug and oil level stick
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
27
LUBRICATION AND MAINTENANCE
LUBRICATION FITTINGS
Supply grease to each grease nipple according to ldquoPeriodical inspection listrdquo on page 28 Clean the grease nipplebefore supplying the grease Coat the supporting points of each link rotating areas and universal joint spline withgreaseUse NLGI No 2 Figure 25 26
Figure xx
Supply grease to the idler pivot and right and left gauge wheels every 25 hours Figure 27 28 29
Figure xx
Figure xx
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
28
LUBRICATION AND MAINTENANCE
BLADE REPLACEMENT AND SHARPENING
WARNING To avoid injury always becareful when removing or installingblades
Your dealer can supply factoryauthorized replacement blades Theyare made of special steel alloy andsubjected to rigid heat treatment andinspection requirement Substituteblades may not meet these rigidspecifications and may be dangerous
Figure xx
For best cutting results the Mower blades should be kept sharp Ragged cut indicates the blade may be dull Theblades should be sharpened when they become as shown in Figure 30 left and should be replaced when theybecome as shown in Figure 30 right
TO REMOVE THE BLADE
Making it easier to replace the blade with safety
1) Remove the mower from the tractor and turn it over
Figure xx
Wooden block
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
29
2) Insert a wooden block between the cutting blade and more deck and lock the cutting blade
3) Loosen the cutting blade fixing bolt and remove the cutting blade using a socket wrench or box spanner
WARNING To avoid injury handsmust be protected with heavy gloveswhen removing or installing blade
NOTE Use the proper metric size box or socket wrench to tighten or loosen bolts
TO SHARPEN THE BLADE
1 Sharpen the blade with a grinder hand file or an electric blade sharpener
2 Keep the blade sharpening angle of 45deg Figure 32
3 Keep a 04 mm cutting edge Figure 32 a fine edge will chip and dull faster
Figure xx
WARNING To reduce the possibilityof personal injury while sharpeningthe blade protective glasses andheavy gloves must be worn
4 After sharpening check blade for balance by supporting blade as shown in Figure 33 using the center hole asa guide File or grind metal from the heavy end of the blade until the blade balances
Figure xx
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
30
LUBRICATION AND MAINTENANCE
TO INSTALL THE BLADE
Install the blade as shown in Figure 34 The mounting bolt for blade should be torqued 98 ndash 118 Nm (1000 ndash 1200kfgcm)
Figure xx
IMPORTANT Be sure to install the Conical Spring Washer facing to blade
If blades become badly worn or damaged replace with new blades Order new blades from your dealer It isrecommended that blades be replaced in sets For your convenience keep a spare set of blades on hand
BELT MAINTENANCEThe belt is located under the belt shieldsCheck the belt after first 25 hours operation and every 100 hours or when the belt begins to slip
BELT REPLACEMENTIf the belt is worn or cracked it must be replaced
1 Position the Tractor on a level and hard surfaceStop the engine and apply the parking brake
2 Remove the Mower from the Tractor
3 Remove the left hand and right hand belt shields by removing bolts and washers Clean around the gearbox
4 Remove the tension spring ①
5 Remove the gearbox mounting bracket ② shown in Figure 35
6 Lift the used belt and turn the pulley slowly Figure 35 Remove the used belt gradually from pulley
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
31
LUBRICATION AND MAINTENANCE
Figure xx
WARNING Be careful not to pinchfingers when removing belt
7 Clean the belt area
8 Turn each pulley to check for abnormalities If any abnormality is noticed repair or replace the pulley
9 Install the new belt
10 Install the gearbox mounting bracket ② and tighten the bolts Figure 35
11 Install the tension spring ①
12 Install the belt shields
13 Install the Mower to the Tractor Refer to INSTALLING THE CUTTER-DECK section
STORING THE MOWER1 Raise the mower and stop the engine
bull Clean the underside of the Mowerbull Sharpen or replace the bladesbull Apply touch-up paint to prevent rust
2 Park the Tractor where you plan to store the Mower and remove the Mower from the Tractor
bull Remove the belt shields Clean the belt areabull Check the condition of belt Replace the belt if necessarybull Check the bolt torques of the gearbox mounting bracketsbull Install belt shields
3 Lubricate all fittings as shown in page 28
4 Check all hardwares for proper torques
5 Apply touch-up paint prevent
①
②
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
32
LUBRICATION AND MAINTENANCE
6 Check the gearbox oil level
7 Repair or replace worn or damaged parts
It is not advisable to store your Mower in an area where it will come in contact with fertilizer fumes Fertilizer fumescan damage your mowers paint finish
TROUBLE SHOOTINGSTREAKING Leaving strips of uncut grassPossible Causes Deck not level side to side dull blades tip of blade not square blade lift worn off low engineRPM Incorrect length of replacement blade not enough overlapping between cutting rows ground speed toohigh belt slippage wet grass blade upside down
SCALPING Blades hitting dirt or cutting very close to the groundPossible Causes Ground speed too high rough terrain deck mounted improperly blade upside down cutting toolow incorrect blade pitch incorrect anti-scalp roller setting
STRINGERS Occasional blades of uncut grassPossible Causes Low RPM plugged deck dull blades ground speed too high belt slippage wet grass bladeupside down
UNEVEN CUT Wavy appearance high low highPossible Causes too much blade (deck) pitch bent deck uneven ground deck mounted improperly pluggeddeck lift worn off blade dull blades bent spindle mounting area bent blades ground speed too high wrongadjustment of weight transfer valve
STEP CUT Clear ridges in grass heightPossible Causes Deck not level side to side tire pressures not equal bent deck bent blade blade upside downdeck mounted incorrectly wrong spindle assembly internal spindle failure bent spindle wheels uneven
The following is a check list of possible causes They are arranged in the best manner for eliminating any of thepreceding problems
1 Check that the deck is mounted correctly The correct pins are positioned and properly fastened
2 Blades should be sharp (see BLADE REPLACEMENT AND SHARPENING section) and mounted correctlyBlades should be straight with cutting edge down
3 Engine RPM Unit must be run at full engine RPM Reducing RPM slows blade tip speed which reduces thecutting efficiency of the Mower
4 Tire pressure must be correct
5 Ground speed should be at about an average walking pace to suit height and density of grass
6 The length of grass being removed should be no more than 13 the height of the grass before it is cut
7 Clean out any accumulation of grass and debris from the underside of the Mower
8 Check or readjust the weight transfer valve
9 The conditions of the ground Uneven ground may show scalping or uneven cutting Raise the cutting heightof the Mower
10 Pitch or level of the deck and blades is incorrect Check for proper adjustment of the gauge wheels and liftlinkages
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
33
LUBRICATION AND MAINTENANCEGENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE These values apply to fasteners as received from supplier dry or when lubricated with normal engine oilThey do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are usedThis applies to both metric coarse and fine threads
Bolt Size Grade NoCoarse Thread Fine Thread
Pitch (mm) Nbullm kgfbullcm Pitch (mm) Nbullm kgfbullcm
M6
4T
10
49 ndash 69 40 ndash 70
ndash ndash ndash7T
83 ndash 113 85 ndash 115
10T118 ndash 157 120 ndash 160
M8
4T
125
127 ndash 167 130 ndash 170
10
152 ndash 201 155 ndash 205
7T 226 ndash 284 230 ndash 290 265 ndash 343 270 ndash 350
10T 284 ndash 363 290 ndash 270 304 ndash 402 310 ndash 410
M10
4T
15
255 ndash 333 260 ndash 340
125
284 ndash 363 290 ndash 370
7T 441 ndash 559 450 ndash 570 490 ndash 628 500 ndash 640
10T 539 ndash 696 550 ndash 710 579 ndash 735 590 ndash 750
M12
4T
175
373 ndash 471 380 ndash 480
125
431 ndash 459 440 ndash 560
7T 657 ndash 834 670 ndash 850 745 ndash 941 760 ndash 960
10T 922 ndash 1160 940 ndash 1180 990 ndash 1270 1010 ndash 1290
M14
4T
20
628 ndash 804 640 ndash 820
15
696 ndash 873 710 ndash 890
7T 1040 ndash 1310 1060ndash 1340 1170 ndash 1480 1190 ndash 1510
10T 1390 ndash 1750 1420 ndash 1780 1470 ndash 1860 1500 ndash 1900
M20
4T
25
1440 ndash 1790 1470 ndash 1830
15
1720 ndash 2110 1750 ndash 2150
7T 2400 ndash 2890 2450 ndash 2950 2750 ndash 3330 2800 ndash 3400
10T 3630 ndash 4410 3700 ndash 4500 3970 ndash 4850 4050 ndash 4950
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
34
SPECIFICATIONS
The specifications are provided for your informationFor additional information see your Dealer
SPECIFICATIONS STM60RD-324 STM60RD-333
Cutting Width 160 cm 152 cm 152 cm
Cutting Height 2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
2 ndash 10 cm10 stages
Spindle Speed 2677 rpm 3037 rpm
Blade Tip Speed 73 ms 83 ms
Number of Blade 3 3 3
Standard BladeLengthWidthThickness
52 cm6 cm
07 cm
52 cm6 cm
07 cm
Weight Poids 170 kg 160 kg
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
35
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
Printed in JapanSTM60-318324STM60-329333 600810630 050501-001 R
Head Office 32-2 Honcho 1-chome Nakano-ku Tokyo JapanTelephone 3-5334-7900 Fax 3-5334-4464
