MIT-S-MT160+

MMiittssuubbiisshhiiService Manual

MT160, MT160D,MT180, MT180D,

MT180H, & MT180HD

THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF MITSUBISHI OR IT’S SUCCESSORS. MITSUBISHI AND IT’S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

Serv

ice

Man

ual

ISO

MIT -S-MT160+

INDEX

GENERAL DESCRIPTION

ENGINE SYSTEM

CLUTCH SYSTEM FRONT AXLE AND STEERING LINKAGE SYSTEM

TRANSMISSION SYSTEM (Sliding gear type)

TRANSMISSION SYSTEM (Hydrostatic Transmission)

BRAKE SYSTEM

HYDRAULIC SYSTEM

HYDRAULIC SYSTEM (Position Control)

ELECTRICAL SYSTEM

OTHERS

1 2 3 4 5-1 5-2 G 7-1 7-2 8 9

TABLE OF CONTENTS Page

Specifications .............................................. 1-1

Greasing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-12

Periodical maintenance services ................................ 1-13

Lubrication table .......................................... 1-14

Wiring diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-15

Antifreeze ................................................ 1-16

Tightening torque .......................................... 1-17

Serial number location ........................................ 1-17

Sealants .................................................. 1-18

TABLE OF CONTENTS Page

Description ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-1

Sectional views ............................................ 2-2

Construction .............................................. 2-4

Cylinder head assembly .................................... 2-4

Cylinder block assembly ................................ . . .. 2-6

Engine services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-10

Engine removal .......................................... 2-10

Engine installation ........................................ 2-13

Piston removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-13

Piston installation ........................................ 2-14

Water pump removal ...................................... 2-14

Cylinder head disassembly .................................. 2-14

Cylinder block disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-15

Inspection .............................................. 2-16

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-22

Lubrication system ...................................... . . .. 2-29

Description ............................................... 2-29

Removal and disassembly .................................. 2-30

Inspection .............................................. 2-30

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-31

Fuel system ................................................ 2-32

Description .......................................... . . .. 2-32

Disassembly .............................................. 2-36

Inspection .............................................. 2-38

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-39

Governor system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-43

Description .............................................. 2-43

Disassembly .............................................. 2-44

Inspection .............................................. 2-44

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-44

Cooling system ............................................ 2-45

Water pump .............................................. 2-45

Thermo switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-46

Thermostat ............ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-46

Coolant change .......................................... 2-47

Rust inhibitors and antifreeze additives ........................ 2-47

Air cleaner ................................................ 2-49

Description ..................... . . . . . . . . . . . . . . . . . . . . . . . .. 2-49

Air cleaner services ........................................ 2-49

Periodical maintenance service chart 2-50 Engine maintenance guide .................................... 2-51

When to overhaul. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-51

Compression pressure test - how to measure compression pressure. . .. 2-52

Engine diagnosis on the basis of compression pressure readings ....... 2-52

Engine diagnosis on the basis of oil consumption ................ 2-52

General working rules on disassembling and reassembling steps ...... 2-52

Troubleshooting ............................................ 2-54

Specifications and maintenance standards ........................ 2-58

Tightening torque .......................................... 2-66

Application of sealants 2-66 Special service tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-67

ENGINE

CONSTRUCTION

CYLINDER HEAD ASSEMBLY

Cylinder head

The head, made of a special . cast iron, is shaped to retain greater rigidity and promote the conduction of excess heat to the coolant. As will be noted in the cross section, the head carries overhead valves arranged for cross-flow intake-air admission and scavenging, with intake port located on the right and exhaust port on the left. The high power capability of the Model K3A and K3C is measurably accounted for the improved volumetric efficiency resulting from this valve configuration.

The pre-chamber (pre-combustion chamber), in which the swirl type of pre-combustion takes place, is of insert type in construction, and is press-fitted into the cylinder head to form its integral part. The pre-chamber is not meant to be removed from the head in engine disassembly.

The valve guides for both intake and exhaust valves are common, there being no need to distinguish between the two. They are of a sintered alloy, impregnated with oil for increased resistance to abrasive wear.

2-4

2 3

l·Nozzle holder 2·Cylinder head 3-Mouth piece 4-Glow plug 5-Valve spring 6-Valve stem seal 7-Valve

8-0il filler cap 9-Rocker shaft

lO-Rocker arm ll-Rocker cover 12-Rocker shaft stay 13-Push rod

Cylinder head - Cross section

Cylinder head g~ket

A steel-and-asbestos gasket is used for the head gasket. Its internal edges for cylinder bores are grommetted with stainless steel sheet to resist the high combustion heat and pressure encountered there. Both faces of the gasket are coated with a sealing compound.

Each replacement gasket comes with its surfaces so treated that no sealing compound is required when installing it during engine reas­sembly.

The later production of this engine uses gasket whose base material is carbon called "Gra-Foil."

Cylinder head gasket

Valves and valve springs

The material of intake valves is a heat-resistant steel; the head diameter is sized large for in­creased intake efficiency. The heads of exhaust valves are faced with a special alloy, which is deposited by welding.

Valve springs, made of a high-carbon spring steel, have their bottom ends shaped specially so that they will solidly seat on the cylinder head. Their top ends are identified by red enamel. There are no differences in spring retainers and retainer locks between intake and exhaust valves.

ENGINE

Description Type Standard value Repair limit Service limit

Ring width Compression ring

No •. l to No. 3 2.5 (0.0984)

Oil ring 4.0 (0.1575)

Ring side clearance

Compression ring

No.1 0.06 to 0.12 (0.0024 to 0.0047) 0.3(0.0118)

No.2 0.05 to 0.09 (0.0020 to 0.0035) 0.2(0.0079)

No.3 0.04 to 0.08 (0.0016 to 0.0031) 0.2(0.0079)

Oil ring 0.03 to 0.07 (0.0012 to 0.0028) 0.2(0.0079)

Ring end gap 0.15 to 0.40 (0.0059 to 0.0157) 1.5(0.0590)

Connecting rod Forged I-beam

Bend and distortion 0.05 (0.0020) max. Big end thrust clearance 0.1 to 0.35 (0.0039 to 0.0138) 0.5(0.0197)

Connecting rod bearing Kelmet metal with backing metal

Oil clearance 0.15 (0.0059)

Undersize 0.25 (0.0098), 0.50 (0.0197) 0.75 (0.0295)

Crankshaft Fully counterbalanced

Bend 0.03 (0.0012) max.

End play 0.06 to 0.3 (0.0024 to 0.0118) 0.5(0.0197)

Journal 0.0. 52 (2.0472) -0.15 -0.95 (-0.0059) (-0.0374)

Pin 0.0. 42 (1.6535) -0.15 -0.95 -0.0059) (-0.0374)

Undersize fmish dimensions Journal

U.S. 0.25 51.735 to 51.750 (2.0368 to 2.0374)

U.S. 0.50 51.485 to 51.500 (2.0270 to 2.0276)

U.S. 0.75 51.235 to 51.250 (2,0171 to 2,0177)

Crankshaft Pin

U.S. 0.25 41.700 to 41.715 (1.6417 to 1.6423)

U.S. 0.50 41,450 to 41.465 (1.6319 to 1.6325)

U.S. 0.75 41.200 to 41.215 (1.6220 to 1.6226)

2-60

TABLE OF CONTENTS Page

Description ............ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-1

Construction .............................................. 3-2

Operating principles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-4

Removal .................................................. 3-5

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-8

Inspection and maintenance .................................. 3-10

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-11

Adjustment ................................................. 3-14

Engine installation .......................................... 3-15

Trou bleshooting ............................................ 3-16

Specifications .............................................. 3-17

TABLE OF CONTENTS Page

4-wheel drive .............................................. 4-1

Description ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-1

Construction 4-1

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-3

Inspection ............................................... 4-6

Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-6

Steering gearbox ......................................... , 4-14

2-wheel drive .............................................. 4-18

Description ....... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-18

Construction ............................................ 4-18

Disassem bl y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-1 9

Inspection .............................................. 4-20

Reassembly .............................................. 4-20

Specifications ............................................. 4-23

TABLE OF CONTENTS Page

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-1

Construction .............................................. 5-2

Removal and disassembly .................................... 5-6

Reassem bly and installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-12

Speed change shifter ........................................ 5-23

TABLE OF CONTENTS Page

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-1

Construction .............................................. 5-28

Removal and disassembly .................................... 5-32

Reassembly and installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42

the gear to the case, tightening the bolts to this torque value:

Tightening torque

(NOTE)

2.5 - 3.0 kg-m (18 - 22 ft-Ib)

Lock washer A (Part number 1135 1405 000) has a lug formed as shown. Position this washer in such a way that the lug will cover up the spring pin locking the center spring.

(5) Install ball bearings in the differential case.

Measuring the pinion shaft cone center for shim selection ( 1) In the bore provided in the transmission

case wall, through which the pinion shaft is to enter, set circlip, and fit the outer race of tapered roller bearing. Be sure to dis­criminate between the inside end face and the outside end face of this race.

(2) Mount the inner race of tapered roller bearing on countershaft.

(3) Position countershaft in place, install the other tapered roller bearing on the front side, and secure it by tightening sleeve nut. Check to be sure that the pinion shaft so secured has no end play. Remember, cone center measurement with the use of a special tool presumes absence of end play on this shaft. Select the shim thickness, in the manner explained, to obtain this value:

Pinion shaft cone 77 ± 0.05 mm center (3.031 ± 0.002 in.)

TRANSMISSION SYSTEM

How to use the special tool

1) Put the bushing (19826011 OOX) to the tool A (11353905000).

2) Insert the tool A and bushing together to the transmission housing from the left-hand side of housing.

3) Select the shim thickness that permits the small-diameter end of tool B (11353908000) to enter freely and prevents the large-diameter and from etering. The shim so selected is to be inserted between the outer race of tapered roller bearing and the circlup at the time of reassembling the pinion shaft.

Shim stock for this selection is available in the following thicknesses:

Unit: ,mm (in.)

Thickness Part No.

0.1 (0.004) 11351315011

0.2 (0.008) 11351316011

0.5 (0.020) 11351317011

The required shim thickness is equal to the clearance which occurs when the small­diameter tool B is placed between pinion gear and tool A.

77 ±0.05mm (3.031 ±0.002 in.)

Ressembling the PTO shaft

Tool B

Tool A

1) Set the circlip to the inside wall of the transmission, and assemble the ball bearing.

2) Install the bushing, ball bearing, shims, and collar to PTO shaft from the front, and set them with the circlip.

5-43

TABLE OF CONTENTS Page

Description ............................................ . . . .. 6-1

Construction ............................................... 6-2

Disassembly ................................................. 6-3

Inspection and maintenance . -. . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . .. 6-5

Reassembly ................................................. 6-6

Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-7

Troubleshooting ............................................. 6-8

Specifications ............................................... 6-9

TABLE OF CONTENTS Page

Description ................................................ 7-1

Construction ........................ "...................... 7-2

Operating principles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-3

Hydraulic power take-off for external service .................. . . .. 7-6

Hydraulic case assembly ...................................... 7-7

Hydraulic pipes and oil filter .................................. 7-13

Oil pump ............................................... " ... 7-15

Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-19

Troubleshooting ............................................ 7-20

Specifications .............................................. 7-22

TABLE OF CONTENTS Page

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-25

Construction .............................................. 7-26

Operation ............... • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-29

Disassembly and reassembly ....................... . . . . . . . . . .. 7-33

Oil pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-49

Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-53

Troubleshooting ........................................•... 7-56

Specifications .............................................. 7-59

TABLE OF CONTENTS

Description

Wiring diagram ............................................. .

Battery ................................................. .

Handling the perfector type battery

Charging the battery

Page

8-1

8-3

8-5

8-5

8-5 Precautions for charging .................................... 8-6

Care of the battery ........................................ 8-6

Safe battery handling ...................................... 8-8

Emergency starting (Use of booster battery and jumper cables) ...... 8-8

Battery diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-9

Safety starter switch 8-11 How it works ............................................ 8-11 Adjustment ............................................ " 8-11 Fuse .................................................... 8-11

Starter .................................................... 8-12

Construction ............................................ 8-12

Testing the starter on the tractor. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-13

Removal ................................................. 8-13

Testing a removed starter ........................... - . . . . . . .. 8-13

Inspection .............................................. 8-14

Installation .............................................. 8-16

Alternator ................................................ 8-17

Construction ............................................ 8-17

Removal ................................................ 8-18

Testing and adjustment .................................... 8-18

Installation .............................................. 8-20'

Regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-21

How it works ............................................ 8-21

Testing and adjustment .................................... 8-21

Glow plugs and glow plug indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-23

How they work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-23 Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-23

Solenoid switch ........................................... 8-24

Engine stop system ......................................... 8-25

Testing procedures ......................................... 8-27

Specifications ............................................... 8-29

TABLE OF CONTENTS

Satoh rotary tiller (model 2PR-111 OS)

Page

9-1

Description <... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-1

Construction ............................................ 9-2

Disassembly .............. < • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •• 9-3

Removal < ••••••••••••••••••••••••••••••••••••••••••••• <. 9-4

Inspection < •••••••••••••••••••• < ••••••••••••••• < • • • • • • •• 9-4

Reassembly .......................................... ' .. <. 9-5

Installation .............................................. 9-9

Specifications ............................................ 9-10

Front power take-off (PTO) kit ................................ 9-11

Description .............................................. 9-11

Disassembly ................. '.' ........................... 9-11

Reassembly .............................................. 9-11

Electrical wiring for Front PTO kit· ............................. 9-13