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EXTREME DUTY STUMP GRINDER Operation & Maintenance Manual
Date Purchased: ____________________________________
Purchased From: ___________________________________
Model Number: _____________________________________
Serial Number: _____________________________________
REMEMBER: Register your product!
To register, visit bluediamondattachments.com/warranty-registration
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Foreword Congratulations on the purchase of your Extreme Duty Stump Grinder, the finest stump grinder in the industry!
Blue Diamond Stump Grinders are designed by people with
years of experience in the landscape business. You can
be sure that the quality and innovation of our Stump Grinder
is our first priority. Getting to know your new stump
grinder should be the first step in learning its features and
limitations. This manual is designed to assist you in the
operation and maintenance of your Stump Grinder.
Document History The list below shows all revisions of the Extreme Duty Stump Grinder Operations and Maintenance Manual
Document Revision First Publication
Summary of Changes Frist Revision
Publication Date February 2017
Headquarters Blue Diamond Attachments, LLC. 4512 Anderson Road Knoxville, TN 37918 toll free 888-376-7027 local 865-246-2006 fax 865-246-2007 [email protected] www.bluediamondattachments.com © 2017 – Blue Diamond Attachments, LLC. All rights reserved. 02/2017. All other brands, products or service names are trademarks or service marks of their respective owners and are used to identify products or services of their companies or organizations. Notice: This document is for informational purposes only and does not set forth any warranty, expressed or implied, concerning any equipment, equipment feature or service offered or to be offered by Blue Diamond Attachments. Blue Diamond Attachments reserves the right to make changes to this document at any time, without notice, and assumes no responsibility for its use. This informational document describes features that may not be currently available. Contact Blue Diamond Attachments sales office for information on features and product availability.
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Contents Foreword
Stump Grinder Safety
About This Manual
Terminology & Hazard Notices
Safety Notices
Modifications of Equipment
About the Extreme Duty Stump Grinder
Grinders
Attaching the Stump Grinder
Removing the Stump Grinder
Operation
Equipment Inspection
Usage Guidelines
How to Grind Stumps
Maintenance
Detailed Parts Diagrams
Parts Identification List
Manufacturer’s Warranty
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Stump Grinder Safety ABOUT THIS MANUAL
Read this manual and follow safety instructions before operating the Stump Grinder. Learn to operate the stump grinder and its controls properly. Never let anyone operate without instruction. This manual contains information about the usage and maintenance required for the equipment. This document must be available for review by the operator before using the attachment to ensure proper safety, maintenance, and usage.
TERMINOLOGY & HAZARD NOTICES USED IN THIS MANUAL
CAUTION Cautions are used to indicate a potentially hazardous situation which, if not avoided,
may result in damage to the equipment or other property.
WARNING Warnings are used to indicate a potentially hazardous situation which, if not avoided,
could result in serious injury or death.
DANGER Danger is used to indicate a potentially hazardous situation which, if not avoided, will
result in serious injury or death.
Prime Mover The Blue Diamond Extreme Duty Stump Grinder can be attached to many different pieces of equipment; therefore the term “prime mover” will be used. A prime mover is
any loader, tractor or equipment providing power to the attachment.
SAFETY
Safety Notices Before operating or conducting maintenance on this equipment, it is important to wear proper
protection. Recommended safety equipment when operating and maintaining this equipment
include close fitting clothing, earplugs, eye protection, and a hard hat. Additional safety equipment
may be required depending on the operating environment and worksite conditions.
Only qualified and trained personnel should operate, maintain, and service this attachment. It is recommended that this equipment be inspected regularly for leaks, cracks, or other conditions that may impair proper usage of the equipment. Verify that all repairs have been completed and inspected prior to using the attachment under load.
It is the responsibility of the user to follow all local, state, and federal safety regulations. Improper use
of this equipment may result in personal injury, property damage, and/or damage to the equipment.
AVOID High pressure fluids. Escaping fluid under pressure can penetrate the skin and cause
serious injury. Relive pressure BEFORE disconnecting hydraulic lines. Tighten all
connections before applying pressure. IF AN ACCIDENT OCCURS, SEE A DOCTOR
IMMEDIATELY. Any fluids injected into the skin must be surgically removed within a
few hours or gangrene may result.
WARNING Do not operate the Stump Grinder if any of the safety guards are not in place.
Modifications to Equipment Any modifications made to this equipment may void any warranty and relieve the manufacturer of liability of any resulting injury or damage
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About the Stump Grinder
The Extreme Duty Stump Grinder attachment is intended for use in stump grinding. Use if this equipment in any other manner is considered to be contrary to the intended use of the attachment.
Grinders
Blue Diamond Stump Grinder attachments are a
necessity for tree companies, landscapers,
agricultural producers and rental companies
looking to increase their productivity and efficiency
when stump grinding.
The Blue Diamond Extreme Duty Stump Grinder is
designed by people with years of experience with
attachments for machinery. You can be sure that the
quality of the Stump Grinder is our first priority.
The Extreme Duty Stump Grinder has been designed to
deliver the productivity of a dedicated machine, but it costs
four to five times less. The Extreme Duty Stump Grinder is
the only stump grinder in the industry with a cushioned
parallelogram mechanism for drivetrain protection and dual-
direction cutting. A radial piston motor for maximum
productivity and proven Greenteeth® technology are just a
few features that combine to bring you the world’s finest
stump grinder!
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Attaching the Stump Grinder to the Prime Mover
NOTE
Before attempting to attach the Stump
Grinder to the prime mover, verify that all
hydraulic couplers are compatible.
CAUTION
Hydraulics should operate in an even
and smooth manner. Hydraulic
movement that is not even and smooth
may indicate that air is in the hydraulic
lines.
WARNING
Improper attachment to the prime mover
may cause personal injury.
CAUTION
All hydraulic connections must be clean
and free of debris before making any
connection.
WARNING
Improper disconnection may result in
personal injury or damage to the
attachment and prime mover.
CAUTION
All hydraulic connections must be clean
and free of debris before disconnection
NOTE
Hydraulic connections must be
disconnected before disengaging latches
to prevent damage to the prime mover or
the attachment.
1. Place the Stump Grinder attachment on a level surface.
2. Position and align the prime mover to the rear of the
attachment, within proximity of the front of prime mover.
3. Insert and connect the prime mover into the
attachment.
4. Connect the hydraulic lines from the attachment to the
prime mover.
5. Close latches (or other locking mechanism) to secure
the attachment to the prime mover.
6. Using the prime mover, raise the attachment and move
the attachment to ensure hydraulic lines are clear of air
and operate properly.
7. Lower the attachment to ground level.
8. Route hoses away from pinch areas – install cable ties
if necessary to assure extended hose life.
9. Inspect that the attachment is mounted properly and
securely. If the attachment does not meet this
requirement, follow the instructions to remove the
Stump Grinder and re-attach using the instructions
above.
1. Using the prime mover, lower the attachment to the
ground.
2. Relieve the pressure in the hydraulic system by
following these instructions:
a. Turn the ignition to off.
b. Turn the ignition back to the on position
without starting the machine.
c. Move the auxiliary hydraulic function lever back
and forth to relieve the pressure in the hydraulic
lines (this will greatly assist you when hooking the
unit back up so that the hydraulic couplers
connect easily).
3. Disconnect the hydraulic connection between the
attachment and the prime mover. To prevent
contamination, remove any dirt and debris from the
couplers.
4. Disengage the prime mover latches (or other
locking mechanism) from the Stump Grinder.
5. Remove the prime mover from the attachment.
Removing the Stump Grinder from the Prime Mover
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Operation
NOTE
Replace any damaged hardware, hoses
and fittings before using the equipment.
WARNING
Do not use hands to check for hydraulic
leaks. Keep body parts away from the
leaking hydraulic lines and couplers that
are under pressure.
DANGER
Keep all body parts away from the Stump
Grinder when in use. The pivoting blade
is dangerous and hazardous and could
potentially cause serious bodily injury or
death.
CAUTION
Always be aware of what is overhead
when operating the Stump Grinder
Inspection Checklist
✓ Are all safety notices and warning
stickers in proper locations and
visible?
✓ Are there any visible hydraulic
leaks?
✓ Are any cracks visible in structure
of the grinder?
✓ Is the cutting wheel bent?
✓ Are bolts holding teeth secure
and tight?
✓ Has the prime mover been
properly inspected for hydraulic
leaks and proper tire inflation?
✓ Has the prime mover been
properly maintained?
Equipment Inspection
It is recommended to inspect the equipment for damage and
wear before use. Use the following list as a guideline during
equipment inspection.
✓ Check all hardware connections to the prime mover
for damage or fatigue such as cracks or other
structural flaws
✓ Check that all latches or locks are closed
✓ Check that all hydraulic fittings are tight and free of
leaks
✓ Check that all hydraulic lines are free of leaks, holes
or cracks
✓ Check that the tires on the prime mover are in good
condition and have proper load ratings
Usage Guidelines
Before each use of the Stump Grinder, do the following:
✓ Perform the equipment inspection by performing a
walk around
✓ Perform daily inspection as indicated on the
Inspection Checklist
✓ Verify that the proper attachment is being used for
the task
✓ As with any power attachment, safety is critical. An
enclosed cab prime mover with the operation
wearing safety protection is required
✓ Never operate the Stump Grinder with persons
within 100 feet of range
✓ Disengage Stump Grinder and shut off the engine
before leaving the cabin of the prime mover
✓ Keep all body parts away from the Stump Grinder
when in use
✓ Use caution on slopes and uneven terrain
✓ Never carry passengers
✓ Never leave the machine running unattended
✓ Never leave the Stump Grinder off the ground when
out of the operator’s seat
✓ Never allow children or untrained personnel operate
the Stump Grinder
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Operation Continued
How to Grind Stumps
Align the cutter wheel with the left side of the stump (viewed from the machine control area) and position the
machine so that it will cut about 4-6 inches off the top of the stump and 8-12 inches from the left side of the
stump. See FIGURE A.
The torsion mechanism prevents overloading of the carbide tipped cutting wheel, ensuring that grinding never
stops. The rate of cut will depend on the type of tree, condition of the wood, and the condition of the cutters.
Too light a feed will produce sawdust. The ideal feeding rate produces heavy wood chips, some of which may
be about 1/16” thick by approximately 6-8 inches long, as well as chunks of wood. After completing the first cut
through the stump, move the machine to the right (again as viewed from the control area) so the wheel can cut
another 8-12 inches. Proceed with anther cut. Additional passes, when the tree stump is very large, are made
in the same manner as described above. Repeat the procedure until the stump is cut to ground level.
Before cutting below the ground level, make certain that all rock or stone is removed from the immediate area of
the cutting wheel. When you are cutting below the ground level, the feed rate should be reduced and the operator
should be alert to the possibility of cutting hidden rock. Extra care used in this part of the operation can avoid
costly damage to the cutting wheel and teeth.
The wheel is designed so that it can “saw” or cut its way into solid wood by dropping straight down on it. This
operation works well for cutting off large roots.
NOTE: DO NOT operate the Stump Grinder with safety guards removed.
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Maintenance
NOTE
Disconnect the hydraulic connection
between the attachment and the prime
mover before performing any type of
maintenance on the Stump Grinder.
Cutting Wheel Be certain to check carbide cutting teeth for wear. Standard teeth can be rotated 180° for a fresh cutting edge. Sharpen or replace teeth as necessary.
Hoses
Check hoses occasionally for abrasion damage. This may
save you from downtime. If in doubt, replace with genuine
Blue Diamond Attachment parts.
Pivot Pins
Pivot pins may be lubed with moly-type grease, same as what
is used on your machine. Please check the cotter pins that
retain all pivot/anchor pins after each use. If missing,
replace! Severe damage could be caused by losing a pin.
Direct Drive SystemCheck the direct drive system occasionally for seal damage and oil leaks. In the event of seal damage, replace the seal and the oil. To replace the oil, use 5 oz. of 90W gear oil. The oil can be added with just one plug out, but taking the second plug out allows it to vent and fill faster. Alternately, you can pour it in from the back with the motor off.
Storage
Lubrication of pivot pins is recommended if unit is stored
outside. Be certain hydraulic quick couplers are cleaned and
joined together to keep dirt out. A light coating of oil film or
diesel fluid is recommended to prevent corrosion. Touch-up
paint should be used on all scratches to prevent further rust.
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Detailed Parts Diagram Extreme Duty Stump Grinder – Parts Diagram
Detailed Parts Diagram UltraGrinder – Parts Diagram
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Skid Steer
Mount
Backhoe Mount
Hoses & Adaptors
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Parts Identification List Item # Part# Description
1 P25012 Stub Shaft, between Motor and Omni Gear – CP-05-CL
2 P25011 Adapter Plate, between Motor and Omni Gear – FL-05-C
3 P20016 Locknut, 5/8 – 11, Grade C
4 P25001 Wheel Housing for Ultra-1620 - 2529
4 P25002 Wheel Housing for Ultra- 2933 - 3945
5 204220 Omni Gear with Castle Nut & Cotter Pin
6 P25035 Wheel, 24”, Low Flow
6 P25036 Wheel, 26”, High Flow
6 P25057 Wheel, 6 Tooth High Performance Low Flow
6 P25058 Wheel, 8 Tooth High Performance High Flow
6 P25059 Wheel, Revolution HD-26”, High Flow
7 P25045 Grade C Locknut ½-13
8 204207 O-RING FOR STUMP GRINDER (568-159)
9 P60096 Flat Washer, 5/8” SAE
10 P60221 Carriage Bolt, 1/2" x 1-1/2"
11 P60222 Flat Washer, 1/2" SAE
12 P60223 Hex Bolt, 5/8" x 2-1/2" , Grade 8
13 P60224 Socket Head Cap Screw, 5/8" x 2-1/4"
14 P60225 Socket Head Cap Screw, 1/2" x 2-1/4"
15 P25004 Piston Wheel Motor-1620
15 P25005 Piston Wheel Motor-2024
15 P25006 Piston Wheel Motor-2529
15 P25007 Piston Wheel Motor-2933
15 P25008 Piston Wheel Motor-3339
15 P25009 Piston Wheel Motor-3945
16 P25037 Hose Plate Holder
17 P25042 Rubber Deflector Shield, Ultra-1620 – 2529, LOW FLOW
17 P25043 Steel Deflector Shield, Ultra-2933 – 3945, HIGH FLOW
18 P60216 Hex Bolt, 1" x 4" Grade 8
19 P60217 Hex Bolt, 1" x 3-1/2" Grade 8
20 P60024 1” Grade C Locknut for Torsion and Parallel Plates
21 P60206 Flat Washer, 1" SAE
22 P25033 1” Fiber Washer
24 P25014 ORB to JIC Adaptor M/M #12 Male and #12 Male
25 P25015 ORB to KIC Adaptor M/M Motor to Hose 1”
26 P25016 ¾” Hose, for LOW FLOW, from Motor to Check Valve
27 P25017 1” Hose, for HIGH FLOW, from Motor to Check Valve
28 P25018 ¾” Hose, for LOW FLOW, from Check Valve to Coupler
29 P25019 1” Hose, for HIGH FLOW, from Check Valve to Coupler
30 P25022 Case Drain, Check Valve
31 P25023 Case Drain Adapter M/M to ORB with Jam Nut – Coupler Side
32 P25025 ¼” Hose, Case Drain, from Motor to Coupler
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33 P25026 Check Valve, Main
34 P25027 ¾” Run Tee, ORB x JIC x JIC, LOW FLOW
35 P25028 1” Run Tee, Orb x JIC x JIC, LOW FLOW
36 P25034 Case Drain M/M Adapter BSPP to JIC
37 P25060 1/4" Female Case Drain Coupler
37 P25061 3/8" Female Case Drain Coupler
37 P25062 3/8" Male Case Drain Coupler
38 P50010F ½” Standard Coupler, Female
38 224050 Flat Faced Coupler, 5/8" Female
38 224055 Flat Faced Coupler, 3/4" Female
39 P50010M ½” Standard Coupler, Male
39 224052 Flat Faced Coupler, 5/8" Male
39 224057 Flat Faced Coupler, 3/4" Male
40 P25000 Extreme Duty Stump Grinder Skid Steer Mount
43 P25003 Torsion Spring
42 P60226 Rolled Spring Pin, 5MM x 40MM
44 P25054 Extreme Duty Stump Grinder Backhoe Mount
45 P25055 Extreme Duty Stump Grinder Backhoe Mount Secondary Plate Custom Weld
46 P60218 Carriage Bolt, 3/8" x 1-1/4"
47 P60219 Lock Nut, 3/8" Grade C
48 P60088 Flat Washer, 3/8” SAE – for Hose Holder
49 P60220 Hex Bolt, 3/8" x 2-1/4" Grade 8 – for Hose Holder
50 P25067 Steel Linkage Plate – Mount to Attachment, Extreme Duty Stump Grinder
STOBR-LF Hose Kit for Low Flow - includes: P25014, P25016, P25018, P25023, P25025, P25027, P25034
STOBR-HF Hose Kit for High Flow - Includes: P25015, P25017, P25019, P25023, P25025, P25027, P25034
204510 GreenTeeth Angle Tooth Pocket, 18 on LOW FLOW, 24 on HIGH FLOW
204508 GreenTeeth Pocket Bolt, 24 on LOW FLOW, 30 on HIGH FLOW
204505 GreenTeeth Wearsharp Tooth, 30 on HIGH FLOW
204512 GreenTeeth Reverse Tooth Pocket, 2 on LOW FLOW & HIGH FLOW
204514 GreenTeeth Straight Tooth Pocket, 4 on LOW FLOW & HIGH FLOW
P25044 ½” Fender Washer – for Chip Guard
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Manufacturer’s Warranty
One Year Limited Warranty
Warranty Claim
Exclusions of Warranty
Remember: Register your product!
Blue Diamond Attachments, LLC., warrants new Blue Diamond
Extreme Duty Stump Grinders at the time of delivery to the
original purchaser, to be free from defects in material and
workmanship when properly set up and operated in accordance
with the recommendations set forth by Blue Diamond
Attachments. Blue Diamond Attachments liability for any defect
with respect to accepted goods shall be limited to repairing or
replacing the goods at a Blue Diamond Attachments designated
location or at an authorized dealer location, or replacing them
as Blue Diamond Attachments shall elect. The above shall be
in accordance with Blue Diamond Attachments warranty
adjustment policies. Blue Diamond Attachments’ obligation shall
terminate one (1) year after the delivery of the goods to original
purchaser. This warranty shall not apply to any machine or
attachment which shall have been repaired or altered outside
the Blue Diamond Attachments factory or authorized Blue
Diamond Attachments dealership or in any way so as in Blue
Diamond Attachments’ judgment, to affect its stability or
reliability, nor which has been subject to misuse, negligence or
accident beyond the Company recommended machine rated
capacity. To submit a warranty claim, a return authorization from Blue
Diamond Attachments must be obtained. The failed part may then
be returned. Tampering with the failed part may void the
warranty. Dealer mileage, service calls, and pickup/delivery
charges are the customers’ responsibility. Except as otherwise expressly stated herein, Blue Diamond
Attachments makes no representation or warranty of any kind,
expressed or implied, AND MAKES NO WARRANTY OF
MERCHANTABILITY IN RESPECT TO ITS MACHINERY
AND/OR ATTACHMENTS ARE FIT FOR ANY PARTICULAR
PURPOSE. Blue Diamond Attachments shall not be liable for
incidental or consequential damages for any breach of
warranty, including but not limited to inconvenience, rental of
replacement equipment, loss of profits or other commercial loss.
Upon purchase, the buyer assumes all liability for all personal
injury and property resulting from the handling, possession, or
use of the goods by the buyer. No agent, employee, or representative of Blue Diamond
Attachments has any authority to bind Blue Diamond
Attachments to any affirmation, representation or warranty
concerning its machinery and/or attachments except as
specifically set forth herein. This warranty does not cover abuse, modifications by others,
or leaking hoses due to improper routing, abrasion, or
pinching. This warranty policy supersedes any previous documents. Register at: bluediamondattachments.com/warranty-registration
