Digga SG26, SG30 Operator And Parts Manual

PM-000033

4 Octal Street, Yatala QLD 4207 Australia
Ph: [phone] - Fax: [phone]

Email: [e-mail]

OPERATOR’S AND PARTS

MANUAL

SG26 & SG30

STUMP GRINDER

UNIVERSAL SKID STEER

APPLICATIONS

TABLE OF CONTENTS

TO THE OWNER........................................................................................................ A

SAFETY PRECAUTIONS............................................................................................B

General Information
To The Operator
Before You Start
Working With The Stump Grinder
Transporting The Stump Grinder

Maintenance

INTERNATIONAL SYMBOLS......................................................................................C

PREOPERATION........................................................................................................D

Before Operation
Skid Steer

Nomenclature

STUMP GRINDER ASSEMBLIES.............................................................................. E

Stump Grinder Assembly #100318
Rear Guard Assembly #101742
Wheel Assemblies
Hydraulic Valve Assembly #100982
Control Valve Replacement Parts
Standard Flow Drive Assembly #100415
High Flow Drive Assembly #100417
Power and Return Circuit
Cylinder Assembly #100324
Cylinder Assembly #101245
Electrical Schematics - Control Handles (#104367 - Direct & #104368 - use with #101096)
Electrical Schematics - Wiring Harness’s (#101096 - 14 Pin, #108035 - 8 Pin & #108036 - 14 Pin JD)

INSTALLATION INSTRUCTIONS................................................................................F

OPERATING INSTRUCTIONS...................................................................................G

LUBRICATION.............................................................................................................H

MAINTENANCE...........................................................................................................L

Daily / Every 40 Hours
Replacing Teeth
Replacing Hydraulic Motor
Replacing Gearbox / Motor Coupler
Replacing Gearbox

Cylinder Seal Replacement

STORAGE AND TRANSPORTING.............................................................................M

TROUBLESHOOTING................................................................................................N

BOLT TORQUE SPECIFICATION...............................................................................O

SPECIFICATIONS...................................................................................................... P

DECALS......................................................................................................................Q

PREDELIVERY CHECKLIST.......................................................................................R

LIMITED WARRANTY..................................................................................... ............S

TO THE OWNER

8915

3-5-03

A A

GENERAL COMMENTS

Congratulations on the purchase of your new DIGGA product! This
product was carefully designed and manufactured to give you years of dependable
service. Only minor maintenance (such as cleaning and lubricating) is required to
keep it in top working condition. Be sure to observe all safety precautions and
maintenance procedures, as described in this manual.

ABOUT THIS MANUAL

This manual has been designed to help you do a better, safer job. Read this
manual carefully and become familiar with its contents. Remember, never let

anyone operate this unit without reading the “Safety Precautions” and
“Operating Instructions” sections of this manual. (See Sections B and G
respectively.)

Unless noted otherwise, right and left sides are determined from the position
of the operator when behind the product facing forward.

SAFETY ALERT SYMBOL

This is the “Safety Alert Symbol” used by this industry. This symbol is
used to warn of possible injury. Be sure to read all warnings carefully.
They are included for your safety and for the safety of others working
with you.

SERVICE

When servicing your product, remember to use only manufacturer replacement
parts. Substitute parts may not meet the standards required for safe, dependable
operation.
To facilitate parts ordering, record the model and serial number of your unit in

the space provided on this page. This information may be obtained from the identication

plate located on the product.

MODEL____________________________________

SERIAL NUMBER___________________________

DATE PURCHASED_________________________

The parts department needs this information to insure that you receive the

correct parts for your specic model.

SAFETY PRECAUTIONS

6621

5-18-95

B B

TAKE NOTE! THIS SAFETY ALERT SYMBOL FOUND THROUGHOUT THIS MANUAL
IS USED TO CALL YOUR ATTENTION TO INSTRUCTIONS INVOLVING YOUR PER­SONAL SAFETY OR OTHERS. FAILURE TO FOLLOW THESE INSTRUCTIONS CAN

RESULT IN INJURY OR DEATH.

THIS SYMBOL MEANS:

ATTENTION!

BECOME ALERT!

YOUR SAFETY IS INVOLVED!

SIGNAL WORDS: Note the use of signal words DANGER, WARNING, and

CAUTION with the safety messages. The appropriate signal word for each has
been selected using the following guidelines:

DANGER: Indicates an imminently hazardous situation, which if not avoided,
will result in death or serious injury. This signal word is to be limited
to the most extreme situations, typically for machine components
which, for functional purposes, cannot be guarded.

WARNING: Indicates a potentially hazardous situation, which if not avoided,
could result in death or serious injury, and includes hazards that
are exposed when guards are removed. It may also be used to
alert against unsafe practices.

CAUTION: Indicates a potentially hazardous situation, which if not avoided,
may result in minor or moderate injury. It may also be used to
alert against unsafe practices.

SAFETY PRECAUTIONS

9714

6-28-04

B B

GENERAL INFORMATION

This section is composed of various warnings and safety tips. Read and
learn all the information in this section before you attempt to use your DIGGA
STUMP GRINDER. Also read your vehicle owner’s manual before using your
equipment. This knowledge will help you operate your unit safely. Do not take

this information lightly, it is presented for your benet and for the benet of others

working around you.

The “Safety Alert Symbol” (as described in Section A and at the beginning
of Section B) will be used throughout this manual. It will appear with the word
DANGER, WARNING, or CAUTION above it, and a safety message pertaining to

the specic topic being covered. Take the time to read these messages as you

come across them.

TO THE OPERATOR

The primary responsibility for safety with the equipment falls to the operator.
Make sure that the equipment is operated only by responsible & competent
individuals with the proper instruction. It is the skill, care, common sense, and

good judgement of the operator that will determine how efciently and safely the

job is performed. Know your equipment before you start. Know its capabilities
dimensions, and how to operate all the controls. Visually inspect your equipment
before you start and never operate equipment that is not in proper working order.

BEFORE YOU START

1. Read the entire loader and Stump Grinder manual. This knowledge is necessary

for safe operation.

2. Do NOT operate the standard ow stump grinder on high ow hydraulic

systems. Severe injury could occur due to the increased RPM.

3. Always wear safety goggles and hearing protection during operation, and

make sure ALL safety shields are properly installed.

4. Follow all safety decals. Keep them clean and replace them if they become

worn, damaged or illegible.

5. Do not paint over, remove or deface any safety signs or warning decals on

your equipment.

6. Know your equipment inside and out. Know how to operate all controls

and know emergency shut down procedures.

7. Keep all stepping surfaces, pedals, and controls free from dirt, grease and

oil. Keep equipment clean to help avoid injury from a fall when getting on

or off equipment.

8. Use handholds and step plates when getting on/off . Failure to do so could

cause a fall.

DIGGA STUMP GRINDER

SAFETY PRECAUTIONS

9715

6-28-04

B B

DIGGA STUMP GRINDER

9. Never operate the unit near bystanders, trafc, pets, livestock or buildings.
Be sure others know when and where you will be working. Never
direct discharge towards people, animals or property. Never allow anyone
to approach the stump grinder when in operation.

10. Never take passengers on your equipment. There is no safe place for a
passenger.

11. Never try to board equipment while it is running.

12. Turn off engine, remove the key and disconnect hydraulic couplers
before performing maintenance. If unit must be left raised for maintenance
or any other reason, block the unit securely to prevent accidental
release of the lifting mechanism. Serious damage or personal injury
could result.

13. Never leave the unit unattended when in a raised position. Always make
sure the attachment is on the ground and keys removed before leaving
the unit unattended.

14. Test all controls before you begin.

15. Do not smoke when refueling. Allow room in the gas tank for expansion.
Wipe up any spilt fuel. Secure cap tightly when done.

WORKING WITH THE STUMP GRINDER

1. Never operate the unit without rst reading and understanding the

operator’s manual.

2. Operate the unit only in daylight or sufcient articial light.

3. Do not carry load with arms in the raised position. Always carry loads
as close as possible to the ground.

4. Check your work area and know where all utility lines are. Avoid hitting
underground electrical wires, cables, pipes, fence posts, gas lines,
uneven sidewalk edges, large rocks, etc.

5. Never operate equipment while under the inuence of alcohol, prescription
drugs, nonprescription drugs, or illegal drugs which could inhibit
physical and/or mental capacity.

6. Do not exceed rated operating capacity, as machine may become unstable

which may result in loss of control.

7. Do not operate the unit without covers installed.

8. Keep hands, feet, hair and clothing away from equipment with engine

running. Stay clear of all moving parts.

9. Do not raise the attachment when the grinding wheel is rotating.

10. ALWAYS LOWER THE LOADER ARMS TO THE GROUND, SHUT OFF

THE ENGINE AND REMOVE THE KEY BEFORE GETTING OFF THE UNIT.

SAFETY PRECAUTIONS

9716

6-28-04

B B

DIGGA STUMP GRINDER

TRANSPORTING THE STUMP GRINDER

1. Follow all federal, state and local regulations when transporting the unit on

public roads.

2. Use extra care when loading or unloading the machine onto a truck or

trailer. Disconnect hydraulic couplers during transportation.

MAINTENANCE

1. Never work on equipment while it is running. Always lower the loader arms

to the ground, shut off the engine, remove the key and disconnect

hydraulic couplers before performing maintenance on the unit.

2. Never make hydraulic repairs while the system is under pressure. Injury or

death could result.

3. Observe proper maintenance schedules and repairs to keep the unit in safe

working order.

4 Always wear safety goggles or glasses when working on equipment.

5. Use only manufacturer recommended replacement parts. Other parts may be

substandard in t and quality.

WARNING! Escaping uid under pressure can have sufcient force to penetrate

the skin causing serious personal injury. Fluid escaping from a very

small hole can be almost invisible. Use a piece of cardboard or

wood, rather that hands to search for suspected leaks.

Keep unprotected body parts, such as face, eyes, and arms as far

away as possible from a suspected leak. Flesh injected with hydraulic

uid may develop gangrene or other permanent disabilities.

If injured by injected uid, see a doctor at once. If your doctor is

not familiar with this type of injury, ask him to research it immediately

to determine proper treatment.

INTERNATIONAL SYMBOLS

3869

4-14-94-2

C C

As a guide to the operation of your equipment, various international symbols have
been utilized on the instruments and controls. The symbols are shown below with an indi­cation of their meaning.

PREOPERATION

9762

8-6-04

D D

DIGGA STUMP GRINDER

GENERAL INFORMATION

The DIGGA Stump Grinders were designed to be easy to use and
maintain. They are operated by the skid-steer auxiliary hydraulics and mount to
the quick attach mechanism for easy operator hook-up. There are two models of

DIGGA stump grinders available, standard ow and high ow. These will allow

mounting the stump grinder to most skid-steer loaders.
Unless noted otherwise, right and left are determined from the position of
the skid-steer operator sitting in the operator’s seat facing forward.
Remember to read the “Safety Precautions” and “Operating Instructions”
sections of the manual BEFORE you attempt to install or use the Stump Grinder
.

NOTE: Illustrations and data used in this manual were current (according to
the information available to us) at the time of printing, however, we reserve
the right to redesign and change the grinders as may be necessary without

notication.

BEFORE OPERATION

The primary responsibility for safety with this equipment falls to the operator.
Make sure that the equipment is operated only by trained individuals that
have read and understand this manual. Don’t hurry the learning process or take
the unit for granted. Practice the operation of your new equipment and become
familiar with the controls and the way it handles on your machine.
If there is any portion of this manual or function you do not understand,
contact your local authorized dealer or manufacturer.

SKID-STEER

Your skid-steer must be equipped with auxiliary hydraulic and an electric
control kit (or the optional electric control handle must be ordered from your
DIGGA dealer).
There are two models of DIGGA stump grinders available, standard

ow and high ow. Be sure the stump grinder you have purchased matches the
hydraulic ow of your skid-steer.
The standard ow unit requires 15-22 GPM and the high ow requires 25­42 GPM. Operating the high ow stump grinder on a standard ow skid-steer will

result in poor performance.

WARNING! OPERATING THE STANDARD FLOW STUMP GRINDER ON A
HIGH FLOW HYDRAULIC SYSTEM MAY CAUSE SEVERE INJURY
OR DEATH TO THE OPERATOR OR BYSTANDERS DUE
TO THE INCREASED RPM.

PREOPERATION

9763

8-6-04

D D

DIGGA STUMP GRINDER

NOMENCLATURE

Throughout this manual, reference is made to various stump grinder
components. The purpose of this page is to acquaint you with the various names
of these components. This knowledge will be helpful when reading through this
manual or when ordering service parts.

STUMP GRINDER ASSEMBLY

9693

1-30-07-2

E E

ASSEMBLY #100318

STUMP GRINDER ASSEMBLY

9383

1-31-07-2

E E

ASSEMBLY #100318

NO REQ’D PART NO. DESCRIPTION

1 2 1022 .31” UNC X 1.00” Hex Capscrew
2 4 1513 .31” Flat Washer
3 2 1502 .31” Lock Washer
4 2 1225 .31” UNC Hex Nut
5 7 1953 .38” UNC X .75” Flange Head Capscrew

6 2 100769 Pin - 1.00” X 2.50”
7 1 101245 Cylinder Assembly - Lift

- 45617 Replacement Seal Kit
8 1 25453 Manual Tube
9 1 100770 Pin - 1.00” X 4.00”

10 2 1051 .38” UNC X 3.00” Hex Capscrew

2 1837 .38” UNC Deformed Lock Nut

11 1 100379 Pin - 1.25” X 13.50”
12 1 100322 Yoke
13 1 100378 Pin - 1.25” X 11.38”
14 1 100420 Valve Cover
15 1 100321 Mounting Bracket

16 1 31990 Pin - 1.00” X 4.50”
17 1 100324 Cylinder Assembly - Swing

- 45617 Replacement Seal Kit

18 2 6616 Grease Fitting
19 1 100323 Stump Grinder Frame
20 2 1043 .38” UNC X 1.00” Hex Capscrew

2 1837 . 38” UNC Deformed Lock Nut

21 1 105762 Access Cover
22 2 1939 .25” UNC X .75” Flangehead Hex Capscrew
23 1 101802 Brace Stand
24 2 1044 .38” UNC X 1.25” Hex Capscrew

2 1837 .38” UNC Deformed Lock Nut

REAR GUARD ASSEMBLY

9765

1-30-07-2

E E

ASSEMBLY #101742

REAR GUARD ASSEMBLY

9383

1-31-07-2

E E

ASSEMBLY #101742

NO REQ’D PART NO. DESCRIPTION
1 1 102061 Wheel Guard Cover
2 4 1043 .38” UNC X 1.00” Hex Capscrew
3 10 1837 .38” UNC Deformed Oval Lock Nut
4 1 102062 Rear Rubber Guard Bracket
5 1 100802 Rubber Guard

6 2 1049 .38” UNC X 2.50” Hex Capscrew
7 20 1514 .38” Flat Washer
8 8 1044 .38” UNC X 1.25” Hex Capscrew

SQUARE TOOTH WHEEL ASSEMBLY

9766

8-9-04

E E

26” STANDARD FLOW WHEEL ASSEMBLY #101234

30” HIGH FLOW WHEEL ASSEMBLY #100418

SQUARE TOOTH WHEEL ASSEMBLY

9767

8-9-04

E E

26” STANDARD FLOW WHEEL ASSEMBLY #101234

30” HIGH FLOW WHEEL ASSEMBLY #100418

NO REQ’D PART NO. DESCRIPTION

1 1 101235 26” Wheel - Standard Flow

1 19911 30” Wheel - High Flow
2 28 19917 Square Tooth - Threaded
3 28 1810 .62” UNF Deformed Lock Nut

REPLACEMENT TOOTH KIT #102075

28 19917 Square Tooth - Threaded

28 1810 .62” UNF Deformed Lock Nut

BOLT-ON TOOTH WHEEL ASSEMBLY

9768

8-9-04

E E

26” STANDARD FLOW WHEEL ASSEMBLY #101234

30” HIGH FLOW WHEEL ASSEMBLY #100418

BOLT-ON TOOTH WHEEL ASSEMBLY

9383

1-31-07-2

E E

26” STANDARD FLOW WHEEL ASSEMBLY #101234

30” HIGH FLOW WHEEL ASSEMBLY #100418

NO REQ’D PART NO. DESCRIPTION

1 1 102147 26” Wheel - Standard Flow

1 19912 30” Wheel - High Flow
2 16 19959 Tooth Mount - Threaded
3 15 19957 Right Tooth
4 15 19956 Left Tooth
5 16 19960 Tooth Mount - Counterbored
6 32 10091 .62” UNF X 2.50” Sockethead Capscrew
7 2 19958 Straight Tooth

REPLACEMENT TOOTH KIT #102076

15 19957 Right Tooth
15 19956 Left Tooth

2 19958 Straight Tooth

NOTE: When looking at the left side of the wheel as shown every number
one position is a special set-up. Twelve o’clock set-up is two left teeth;
three o’clock is two right teeth; six o’clock is one left tooth and a straight
tooth on the right side of the wheel; and nine o’clock is a right tooth and a
straight tooth on the left side of the wheel.

HYDRAULIC VALVE ASSEMBLY

9699

8-9-04

E E

ASSEMBLY #100982

HYDRAULIC VALVE ASSEMBLY

9700

8-9-04

A A

ASSEMBLY #100982

NO REQ’D PART NO. DESCRIPTION

1 6 3434 90° Elbow 6MBo-6MJ
2 1 38196 Hose .25” X 38” 6FJX-6FJX 45°
3 1 38197 Hose .25” X 29” 6FJX-6FJX 45°
4 2 30140 90° Elbow 6MBo-6MJ - XL
5 1 38195 Hose .25” X 19” 6FJX-6FJX

6 1 37345 Hose .25” X 28” 6FJX-6FJX
7 1 101395 Control Valve
8 2 30347 90° Elbow 12MBo-12MJ - L
9 3 1514 .38” Flat Washer

10 3 1503 .38” Lock Washer

11 3 1043 .38” UNC X 1.00” Hex Capscrew

12 2 3419 Straight Connector 12MBo-12MJ

CONTROL VALVE

9759

8-3-04

E E

REPLACEMENT PARTS

CONTROL VALVE

9760

8-3-04

E E

REPLACEMENT PARTS

NO REQ’D PART

NO.

DESCRIPTION

1 - 45892 Solenoid Valve Cartridge

- 45893 Replacement Coil

- 45894 Spacer

2 - 45888 Solenoid Valve Cartridge

- 45889 Seal Kit

3 - 45882 Press Comp Cartridge

- 45883 Seal Kit

4 - 45887 Relief Valve Cartridge

- 45862 Seal Kit - Relief Valve

5 - 45885 Flow Control Cartridge (Cylinder Speed Control)

- 45886 Seal Kit - Flow Control

6 - 45863 Check Valve Cartridge

7 - 45890 P.O. Check Valve Cartridge

- 45891 Seal Kit - P.O. Check Valve

8 - 45884 Check Valve Cartridge

- 45864 Seal Kit - Check Valve

STANDARD FLOW DRIVE ASSEMBLY

9701

6-24-04

E E

ASSEMBLY #100415

STANDARD FLOW DRIVE ASSEMBLY

9702

1-30-07-2

E E

ASSEMBLY #100415

NO REQ’D PART NO. DESCRIPTION
1 2 38232 Hose .62” X 52” 10MBo 90° - 12FJX
2 1 17787 Hydraulic Motor

** 45814 Replacement Seal Kit
3 4 1841 .50” UNC Deformed Lock Nut
4 1 100860 Motor Mount
5 2 1091 .50” UNC X 1.75” Hex Capscrew

6 2 6886 Rubber Bumper
7 1 17808 Coupler
8 4 1799 .38” UNC X 1.50” Sockethead Capscrew
9 1 22277 Roll Pin
10 1 100988 Right Angle Gearbox Assembly

- 19701 Replacement Castle Nut

- 19702 Replacement Input Seal

- 19703 Replacement Output Seal

- 7781 Replacement Breather Plug

11 4 1839 .62” UNC Deformed Oval Lock Nut
12 8 1627 .62” Hard Flat Washer
13 4 10071 .62” UNC X 2.25” Hex Capscrew - Grade 8
14 1 1613 Cotter Pin

** Field replacement of the internal motor seals voids warranty.

HIGH FLOW DRIVE ASSEMBLY

9703

1-30-07-3

E E

ASSEMBLY #100417

HIGH FLOW DRIVE ASSEMBLY

9704

1-30-07-3

E E

ASSEMBLY #100417

NO REQ’D PART NO. DESCRIPTION
1 2 38233 Hose .75” X 52” 12FJX - 12FJX
2 1 22600 90° Elbow 12MBo-12MJ
3 1 30292 Straight Connector 16MBo-12FB
4 1 30051 90° Elbow 16MBo-12MJ
5 1 37482 Case Drain Hose .25” X 132” 6FJX-6FJX

1 38234 Case Drain Hose .25” X 148” 6FJX-6FJX

(Not Included in Drive Assembly)

6 1 3269 Straight Adapter 8MBo-6MJ

(Not Included in Drive Assembly)

7 1 84923 Male Coupler

(Not Included in Drive Assembly)

8 1 101793 Hydraulic Motor

** 45898 Replacement Shaft Seal Kit

** 45899 Replacement Rear Seal Kit
9 8 1841 .50” UNC Deformed Lock Nut
10 1 30388 45° Elbow 4MBo-6MJ

11 4 6886 Rubber Bumper
12 2 101785 Motor Mount
13 4 10086 .50” UNC X 2.25” Capscrew
14 4 1799 .38” UNC X 1.50” Sockethead Capscrew
15 1 100917 Coupler

16 1 22277 Roll Pin
17 1 101509 Right Angle Gearbox Assembly

- 19701 Replacement Castle Nut

- 102011 Replacement Input Seal

- 102010 Replacement Output Seal

- 7781 Replacement Breather Plug
18 4 1936 .75” UNC Deformed Oval Lock Nut
19 8 1649 .75” Hard Flat Washer
20 4 1140 .75” UNC X 2.25” Hex Capscrew

21 1 1613 Cotter Pin

**Field replacement of the internal motor seals voids warranty.

STANDARD FLOW HOSE SET

9705

6-24-04

E E

POWER AND RETURN CIRCUIT

STANDARD FLOW HOSE SET

9706

8-9-04

E E

POWER AND RETURN CIRCUIT

HOSE KIT #100983

NO REQ’D PART NO. DESCRIPTION

1 1 22518 Female Coupler
2 1 19632 Male Coupler
3 2 3419 Straight Connector 12MBo-12MJ
4 2 38235 Hose .62” X 72” 12FJX-12FJX

HOSE KIT #100984

NO REQ’D PART NO. DESCRIPTION

1 1 22518 Female Coupler
2 1 19632 Male Coupler
3 2 3419 Straight Connector 12MBo-12MJ
4 2 38236 Hose .62” X 88” 12FJX-12FJX

HIGH FLOW HOSE SET

9770

8-9-04

E E

POWER AND RETURN CIRCUIT

HIGH FLOW HOSE SET

9771

8-9-04

E E

POWER AND RETURN CIRCUIT

HOSE KIT #101754

NO REQ’D PART NO. DESCRIPTION

1 1 84921 Female Coupler .62”-12FBo-FF
2 1 19636 Male Coupler 62”-12FBo-FF
3 2 3419 Straight Connector 12MBo-12MJ
4 2 35920 Hose .75” X 73” 12FJX-12FJX

* Case drain hoses and ttings included in this kit are shown on the High Flow Drive As­sembly pages.

HOSE KIT #101755

NO REQ’D PART NO. DESCRIPTION

1 1 84921 Female Coupler 62”-12FBo-FF
2 1 19636 Male Coupler 62”-12FBo-FF
3 - ----- NOT USED WITH LONGER HOSE #37060
4 2 37060 Hose .75” X 88” 12MBo-12FJX

* Case drain hoses and ttings included in this kit are shown on the High Flow Drive As­sembly pages.

HOSE KIT #102073

NO REQ’D PART NO. DESCRIPTION

1 1 22520 Female Coupler .75”-12FBo-FF
2 1 19638 Male Coupler 75”-12FBo-FF
3 2 3419 Straight Connector 12MBo-12MJ
4 2 35920 Hose .75” X 73” 12FJX-12FJX

* Case drain hoses and ttings included in this kit are shown on the High Flow Drive As­sembly pages.

HOSE KIT #102074

NO REQ’D PART NO. DESCRIPTION

1 1 84921 Female Coupler 62”-12FBo-FF
2 1 19636 Male Coupler 62”-12FBo-FF
3 - ----- NOT USED WITH LONGER HOSE #37060
4 2 37060 Hose .75” X 88” 12MBo-12FJX

* Case drain hoses and ttings included in this kit are shown on the High Flow Drive As­sembly pages.

CYLINDER ASSEMBLY

9721

7-1-04

E E

ASSEMBLY #100324

CYLINDER ASSEMBLY

9721

7-1-04

E E

ASSEMBLY #100324

NO REQ’D PART NO. DESCRIPTION

1 2 6616 Grease Fitting
2 1 1483 Hex Nut
3 1 50252 Piston
4 1 88926 Cylinder Tube
5 1 77458 Cylinder Gland

6 1 100325 Cylinder Rod
7 2 88919 Bushing
8 1 4644* Piston Ring
9 1 4645* O’Ring

10 1 4641* O’Ring

11 1 5421 Washer
12 1 4509* O’Ring
13 1 4510* Back-Up Washer
14 1 45219* Poly-Pak Seal
15 1 45250* O’Ring

16 1 45389* Rod Wiper
17 1 88918 Bushing

NOTE: Seal Kit #45617 includes all parts marked with an asterisk (*). Parts
are not sold separately.

CYLINDER ASSEMBLY

9723

7-1-04

E E

ASSEMBLY #101245

CYLINDER ASSEMBLY

9724

7-1-04

E E

ASSEMBLY #101245

NO REQ’D PART NO. DESCRIPTION

1 2 6616 Grease Fitting
2 1 1483 Hex Nut
3 1 50252 Piston
4 1 88926 Cylinder Tube
5 1 77458 Cylinder Gland

6 1 100325 Cylinder Rod
7 2 88919 Bushing
8 1 4644* Piston Ring
9 1 4645* O’Ring

10 1 4641* O’Ring

11 1 5421 Washer
12 1 4509* O’Ring
13 1 4510* Back-Up Washer
14 1 45219* Poly-Pak Seal
15 1 45250* O’Ring

16 1 45389* Rod Wiper
17 1 88918 Bushing

NOTE: Seal Kit #45617 includes all parts marked with an asterisk (*). Parts
are not sold separately.

CONTROL BOX ASSEMBLY

9828

3-04-06-3

E E

DIGGA ELECTRICAL CONTROL HANDLE ASSEMBLY #104367

(DIRECT CONNECT TO CONTROL VALVE)

CONTROL BOX ASSEMBLY

9726

3-15-06-4

E E

OPTIONAL ELELCTRICAL CONTROL BOX ASSEMBLY #104368

(USE WITH WIRING HARNESS #101096)

ELECTRICAL HARNESS

9709

3-15-06-2

WIRING HARNESS #101096

ELECTRICAL SCHEMATIC

10887

1-26-06

WIRING HARNESS #108035

ELECTRICAL SCHEMATIC

10888

1-26-07

WIRING HARNESS #108036

INSTALLATION INSTRUCTIONS

9772

8-6-04

F F

GENERAL INFORMATION

The following instructions will help you to mount your stump grinder onto your skid­steer loader. The stump grinder uses the quick-attach system for ease of installation. There­fore, if you know how to attach your bucket, attaching the stump grinder should prove no
problem.
Remember to read all safety warning, decals and operations instructions before
operating the attachment. If there is any portion of this manual that you do not understand,
contact your dealer.

WARNING! OPERATING THE STANDARD FLOW STUMP GRINDER ON A HIGH
FLOW HYDRAULIC SYSTEM MAY CAUSE SEVERE INJURY OR DEATH
TO THE OPERATOR OR BYSTANDERS DUE TO THE INCREASED

RPM.

INSTALLATION INSTRUCTIONS

1. Remove any shipping banding from around the stump grinder and skid.

2. Remove any attachment from the front of the loader.

3. Following all standard safety practices and the instructions for installing an
attachment on your skid-steer operator’s manual, install the stump grinder
onto your skid-steer.

NOTE: IT IS IMPORTANT TO MAKE SURE THE LOCKING MECHANISM ON YOUR
QUICK ATTACH IS ENGAGED, THEREFORE LOCKING THE ATTACHMENT ONTO

THE SKID-STEER.

4. Lower the unit to the ground and remove the key.

5. If the rear guard assembly was not installed at the factory, install it now
using the hardware provided. (See Section E for hardware locations.)

6. Relieve any pressure from the auxiliary hydraulic system and after making
sure that there is not any foreign matter on the hydraulic couplers, connect
the couplers to the auxiliary hydraulic system of your skid-steer loader.

7. If installing the high ow stump grinder, connect the case drain coupler to

the case drain on your skid-steer loader. Route the hoses in such a fashion

as to avoid pinching or chang.

CAUTION! BE SURE CASE DRAIN COUPLER IS COMPLETELY ENGAGED.
IMMEDIATE HYDRAULIC MOTOR SEAL FAILURE WILL OCCUR
IF CASE DRAIN IS NOT SUCCESSFULLY CONNECTED.

INSTALLATION INSTRUCTIONS

9720

7-1-04

F F

8. Route the electrical control handle to the operator’s station taking care to

avoid pinching of the electrical wire harness. NOTE: If your skid-steer is

equipped with a multi-function control handle, connect the electrical wire

harness from the stump grinder to the auxiliary electrical connector on the

front of the skid-steer.

9. Following all standard safety practices, start the skid-steer and run all

cylinders through their full cycle to purge any air from the system. Check

that all controls function according to the operating control decal.

Your stump grinder is now installed and ready for operation.

DISCONNECT INSTRUCTIONS

1. With the stump grinder extended halfway out, lower the unit onto the

grouser pads on the mounting bracket and the brace stand. NOTE: Extending

the unit will help prevent it from tipping forward when disconnected.

2. Following Safety Shut Down Procedures; stop the engine and set the

parking brake, relieve any pressure in the hydraulic lines.

3. Disconnect the power and return hoses from the auxiliary hydraulics.

(Disconnect case drain coupler from the case drain if using the high ow

stump grinder.)

4. Disconnect the electrical wire harness from the auxiliary electrical connector

(if so equipped).

5. Following all standard safety practices and the instructions for disconnecting

an attachment in your skid-steer operator’s manual, disconnect the

stump grinder from your skid-steer.

6. Connect the hydraulic couplers on the attachment together to prevent

contaminants from entering the hydraulic system.

OPERATING INSTRUCTIONS

9773

8-612-04

G G

GENERAL INFORMATION

The DIGGA stump grinder is perfect for landscaping and maintaining
parks and municipalities. The easy maneuverability of the skid-steer allows access to ar­eas often inaccessible and it is easily moved from site to site. The offset design offers ex­cellent visibility and can be used in tight spaces around buildings and homes.

The quick attach mounting plate allows for easy hook-up and disconnect. Therefore
the time required to remove the stump grinder from the skid-steer and attach a bucket for
clean up is greatly reduced from conventional stump grinders. Due to this arrangement,
thorough knowledge of the skid-steer controls is necessary for machine operation. Read
your skid-steer operator’s manual for information regarding skid-steer operation before at­tempting to use the stump grinder.

Follow all installation instructions (Section F) for the proper installation of the unit
onto your skid-steer before operating.

STUMP GRINDING OPERATION

WARNING! CHECK THE WORK AREA AND KNOW WHERE ALL UTILITY
LINES ARE BEFORE OPERATING THE STUMP GRINDER.
OPERATE THE STUMP GRINDER FROM INSIDE THE
OPERATOR’S STATION OF YOUR SKID-STEER LOADER
ONLY.

1. Swing the stump grinder all the way to the right, align the grinder with the stump in
such a fashion that the skid-steer is as level as possible from left to right.

2. Position the cutting wheel to the right of the stump. Lower the frame so the grous
er pads are resting on the ground. This will assist in stabilizing the unit for even cut

ting and reduce the inadvertent movement of the skidsteer.

NOTE: It is recommended that the pivot pin, attaching the mounting bracket to the
yoke, be perpendicular to the ground or as close to perpendicular as possible for
the best performance of the unit.

NOTE: Be sure the cutting wheel is not contacting the ground.

3. Activate the auxiliary hydraulics to the stump grinder and increase the engine to
full RPM.

4. Adjust the cutting wheel to cut approximately 1 to 1-1/2” of stump.

OPERATING INSTRUCTIONS

9774

8-12-04

G G

DIGGA STUMP GRINDER

NOTE: The cutting depth of each pass will be determined by the type of

tree. Certain varieties of trees will allow for a deeper cut than trees containing

a lot of sap.

5. Swing the cutting wheel to the left across the top of the stump on the edge

closest to the skid-steer. Lower the grinder another 1 to 1-1/2” and swing

the cutting wheel back across the stump to the right.

6. Continue cutting in this manner. If the wheel stalls, reduce the depth of the

cut. Move the skid-steer as required to allow cutting a new area.

NOTE: Do not move into the stump while making a cross sweep. Machine

and/or tooth damage could result from motor overload.

NOTE: Make shallow cuts when cutting surface roots. Large chips can be

broken off and thrown if the cut is too deep.

LUBRICATION

9775

8-12-04

H H

GENERAL INFORMATION

Economical and efcient operation of any machine is dependent upon

regular and proper lubrication of all moving parts with a quality lubricant. Neglect

leads to reduced efciency, wear, breakdown and needless replacement of parts.

DAILY / EVERY 8 HOURS

All parts provided with grease ttings should be lubricated every 8 hours. If
any grease ttings are missing, replace them immediately. Clean all ttings

thoroughly before using the grease gun.

IMPORTANT: Avoid excessive greasing. Dirt collects on exposed grease
and greatly increases wear. After greasing, wipe off excessive grease from

ttings.

LUBRICATION SYMBOL

Lubricate daily or every 8 hours of operation, whichever comes last, with
SAE Multi-Purpose Lubricant or equivalent SAE Multi-Purpose type grease.

CAUTION! SHUT OFF ENGINE AND REMOVE KEY BEFORE
LUBRICATING EQUIPMENT.

WEEKLY

The oil level in the gearbox should be checked once a week. Fill as necessary
with 80-90 weight gear lubricant.

TO CHECK:

Remove access cover from front of frame. Remove pipe plug from end of gearbox.
Lubricant should be at the same level as the plug.

TO ADD:

Remove pipe plug from the gearbox and add 80-90 weight gear lubricant until level with
plug. Replace pipe plug. NOTE: Removing vent plug when lling will speed up the

lling process.

IMPORTANT: DO NOT OVERFILL,
AS TOO MUCH LUBRICANT MAY
RUPTURE THE GEAR BOX SEALS.

MAINTENANCE

9727

7-9-04

L L

STUMP GRINDER

GENERAL INFORMATION

Regular maintenance is the key to long equipment life and safe operation. Main-

tenance requirements have been reduced to an absolute minimum. However, it is very

important that these maintenance functions be performed as described below.

WARNING! Avoid serious injury. Lower the stump grinder to the ground, set the

parking brake, stop the skid-steer engine and remove the key before

leaving the operator’s seat. If unit must be left raised for maintenance

block the unit securely to prevent accidental release of the lifting

mechanism. Disconnect the hydraulic couplers.

DAILY

• Check skid-steer loader hydraulic system to ensure an adequate level of hydraulic oil.

• Check Gearbox castle nut and torque to min. 250 - max. 350 ft. lbs.

• Check mounting hardware on teeth and torque to min. 150- max. 180 ft. lbs.

• Check all other hardware and tighten if necessary. See Section O

• Check hydraulic system for hydraulic oil leaks.

• Check Gearbox power shaft for foreign material wrapped around the shaft and

remove if necessary.

• Check teeth for damage and replace as needed.

• Check all Safety Guards and Devices are installed correctly.

• Check for missing or illegible Safety / Warning Decals.

WARNING! Escaping uid under pressure can have sufcient force to penetrate

the skin causing serious personal injury. Fluid escaping from a very

small hole can be almost invisible. Use a piece of cardboard or wood,

rather that hands to search for suspected leaks.

Keep unprotected body parts, such as face, eyes, and arms as far

away as possible from a suspected leak. Flesh injected with hydraulic

uid may develop gangrene or other permanent disabilities.

If injured by injected uid, see a doctor at once. If your doctor is not

familiar with this type of injury, ask him to research it immediately to

determine proper treatment.

EVERY 40 HOURS

• Check oil level in gearbox and add if necessary. (See Section H)

MAINTENANCE

9776

1-31-07-2

L L

STUMP GRINDER

WARNING! Avoid serious injury. Lower the stump grinder to the ground,
set the parking brake, stop the skid-steer engine and remove
the key before leaving the operator’s seat. If unit must be
left raised for maintenance block the unit securely to prevent
accidental release of the lifting mechanism. Disconnect the
hydraulic couplers.

REPLACING TEETH

When replacing the teeth the unit must be blocked securely off the ground
to allow the wheel to rotate.
The teeth should be inspected regularly (every 8 hours) for tightness and
to ensure they are not worn or that the carbide tip is not missing or chipped.
Tighten and replace as necessary.

Replacing Square Teeth:

1. With unit securely blocked off the ground and hydraulic couplers disconnected,
remove lock nuts on teeth being replaced.

2. Position new teeth and replace existing lock nut with new one provided.

3. Torque to specication. (See Section “O”.)

Replacing Bolt-On Teeth:

1. With unit securely blocked off the ground and hydraulic couplers disconnected,
remove the two sockethead capscrews securing the tooth to the
wheel.

2. Position the new tooth on one side while retaining the existing tooth on the
other side and secure in place with the existing sockethead capscrews.

NOTE: Be sure to maintain the existing tooth pattern when replacing any
bolt-on teeth. See Section E

3. Torque to specication. (See Section “O”.)

REPLACING HYDRAULIC MOTOR

When replacing the hydraulic motor the unit should be either securely
blocked up off the ground or attached to a hoist with the hydraulic couplers disconnected.

NOTE: Field replacement of the internal motor seals voids warranty.

1. With unit securely positioned and hydraulic couplers disconnected, tag
and disconnect the hydraulic hoses from the hydraulic motor. Note the
hose routing for re-installation.

2. Loosen the four sockethead capscrews on the coupler. See Figure #1

3. Standard Flow: Slide the motor out of the coupler and remove the two
.50” capscrews holding the motor to the motor mount and remove the motor.
See Figure #1
High Flow: Remove the four .50” capscrews holding the motor to the motor
mounts and then slide the motor out of the coupler. See Figure #1

MAINTENANCE

9777

1-31-07-2

L L

4. Standard Flow: Install the new motor onto the motor mount using the existing

hardware. Slide the motor with the mounting plate into the coupler while

positioning the rubber bumpers and retighten the sockethead capscrews.

High Flow: Slide the motor into the coupler while maintaining the positioning

of the motor mounting plates. Reinstall the motor onto the motor mountings

using the existing hardware and retighten the sockethead capscrews.

WARNING! Avoid serious injury. Lower the stump grinder to the ground, set

the parking brake, stop the skid-steer engine and remove the key

before leaving the operator’s seat. If unit must be left raised for

maintenance block the unit securely to prevent accidental release

of the lifting mechanism. Disconnect the hydraulic couplers.

5. Torque all hardware to specication. See Section O

6. Re-connect the hydraulic hoses and ttings to the new motor.

7. Check for leaks and tighten as required.

FIGURE #1

REPLACING GEARBOX/MOTOR COUPLER

When replacing the coupler the unit should be either securely blocked up

off the ground or attached to a hoist with the hydraulic couplers disconnected.

1. With unit securely positioned and hydraulic couplers disconnected, loosen

the four sockethead capscrews on the coupler.

2. Standard Flow: Slide the motor out of the coupler. See Figure #1

High Flow: Remove the four .50” capscrews holding the motor to the motor

mounts and slide the motor out of the coupler. See Figure #1

3. Remove the roll pin holding the coupler to the gearbox.

4. Place the new coupler on the gearbox shaft and reinstall the roll pin.

STUMP GRINDER

MAINTENANCE

9778

1-31-07-2

L L

STUMP GRINDER

5. Reinstall the motor into the coupler (install the four .50” capscrews on high

ow units) and retighten the sockethead capscrews. Torque to specication.

See Section O

REPLACING GEARBOX

When replacing the gearbox the unit should be either securely blocked up
off the ground or attached to a hoist with the hydraulic couplers disconnected.

NOTE: A new cotter pin should be installed whenever the wheel has been
removed.

1. With the wheel guard cover removed, remove the castle nut and cotter pin
securing the wheel to the gearbox.

2. Loosen the four sockethead capscrews on the coupler. See Figure #1

3. Standard Flow: Slide the motor out of the coupler. See Figure #1
High Flow: Remove the four .50” capscrews holding the motor to the motor
mounts and slide the motor out of the coupler. See Figure #1

3. Remove the roll pin holding the coupler to the gearbox and remove the coupler.
See Figure #2

4. Remove the four capscrews securing the gearbox to the stump grinder
frame and remove the gearbox. See Figure #2 NOTE: Be prepared for

the gearbox to drop when the capscrews are removed.

FIGURE #2

5. Check lubrication level in the gearbox and add as needed. See Section H
Install into the stump grinder frame using the existing hardware.

6. Place the new coupler on the gearbox shaft and reinstall the roll pin.

7. Reinstall the motor into the coupler (install the four .50” capscrews on high

ow units) and retighten the sockethead capscrews.

8. Re-install the wheel using the new castle nut and cotter pin.

9. Re-install the wheel guard cover using the existing hardware.

10. Torque all capscrews to specication. See Section O

MAINTENANCE

9383

1-31-07-2

L L

GENERAL INFORMATION

The following information is provided to
assist you in the event you should need to repair
or rebuild a hydraulic cylinder. When working on
hydraulic cylinders, make sure that the work area
and tools are clean and free of dirt to prevent con­tamination of the hydraulic system and damage to
the hydraulic cylinders. Always protect the active
part of the cylinder rod (the chrome section). Nicks
or scratches on the surface of the rod could result
in cylinder failure. Clean all parts thoroughly with a
cleaning solvent before reassembly.

DISASSEMBLY PROCEDURE
IMPORTANT: Do not contact the active surface
of the cylinder rod with the vise. Damage to the
rod could result.

THREADED TYPE GLAND

1. Rotate the gland with a spanner wrench
counterclockwise until the gland is free of the cylin-

der tube.

2. Pull the cylinder rod from the cylinder tube.

3. Inspect the piston and the bore of the cylin
der tube for deep scratches or galling. If
damaged, the piston and cylinder tube must
be replaced.

4. Remove the hex nut, piston, at washer or

spacer tube (if so equipped), and gland from
the cylinder rod. If the cylinder rod is rusty,
scratched, or bent, it must be replaced.

5. Remove and discard all the old seals.

ASSEMBLY PROCEDURE
IMPORTANT: Replace all seals even if they do
not appear to be damaged. Failure to replace
all seals mayresult in premature cylinder fail­ure.

1. Install the cylinder rod seal in the gland rst.

Be careful not to damage the seal in the

process as it is somewhat difcult to install.

A special installation tool (Part #65349) is
available to help with installing the seal.

Simply t the end of the tool over the seal

so that the large prong of the tool is on the
outside of the seal, and the two smaller
prongs on the inside. The lip of the seal
should be facing towards the tool.

Rotate the handles on the tool around to wrap the
seal around the end of the tool.
Now insert the seal into the gland from the inner
end.

Position the seal in it’s groove, and release and re­move the tool. Press the seal into its seat the rest
of the way by hand.

2. Install the new piston ring, rod wiper, O­rings and backup washers if applicable on the pis­ton. Be careful not to damage the seals. Caution
must be used when installing the piston ring. The
ring must be stretched carefully over the piston
with a smooth, round, pointed tool.

CYLINDER SEAL REPLACEMENT

MAINTENANCE

L L

3. After installing the rod seal inside the gland
as shown in step #1, install the external seal.

NOTE: Threaded glands may have been equipped
with a separate O-ring and backup washer system
or a polypak (all in one) type seal. Current seal kits
contain a polypak (all in one) type seal to replace
the discarded seal types on ALL THREADED
GLANDS.

4. Slide the gland onto the cylinder rod being
careful not to damage the rod wiper. Then install the

spacer, or at washer (if so equipped), small o-ring,

piston, and hex nut onto the end of the cylinder rod.

6. Apply a lubricant (such as Lubriplate #105) to the
piston and teon ring. Insert the cylinder rod assem­bly into the cylinder tube.

IMPORTANT: Ensure that the piston ring ts

squarely into the cylinder tube and piston
groove, otherwise the ring may be damaged and
a leak will occur.

7. Use a spanner wrench to rotate the gland
clockwise into the cylinder. Continue to rotate the
gland with the spanner wrench until it is tight.

NOTE: Seal kits will service most cylinders of
similar bore size and rod diameter.

WARNING! Cylinders serviced in the eld are

to be tested for leakage prior to the
attachment being placed in work.
Failure to test rebuilt cylinders
could result in damage to the cylin
der and/or the attachment, cause
severe personal injury or even
death.

TORQUE SPECIFICATION CHART

Use the following torque values when tight­ening the nuts on the cylinder rod threads.

5. Secure the cylinder rod (mounting end) in a
vise with a support at it’s center. Torque the nut to
the amount shown for the thread diameter of the
cylinder rod (see chart).

IMPORTANT: Do not contact the active surface
of the cylinder rod with the vise. Damage to the
rod could result.

8762

10-3-02

STORAGE & TRANSPORTING

9731

8-13-04

M M

GENERAL INFORMATION

The following storage procedure will help you to keep your stump grinder in top
condition. It will also help you get off to a good start the next time your stump grinder is
needed. We therefore strongly recommend that you take the extra time to follow these
procedures whenever your unit will not be used for an extended period of time.

PREPARATION FOR STORAGE

1. Clean the unit thoroughly, removing all mud, dirt, grease and wood chips.

2. Replace any worn or chipped teeth. Replace any teeth that are missing the car
bide tip.

3. Inspect the unit for visible signs of wear, breakage or damage. Order any parts
required and make the necessary repairs to avoid delays when starting next sea
son.

NOTE: Purchase only approved parts from your authorized dealer.

4. Tighten all loose nuts, capscrews and hydraulic connections.

5. Check the gearbox for proper lubrication level. (See Section H)

6. Connect the hydraulic couplers together to protect the hydraulic system from
contaminates.

7. Touch up all unpainted and exposed areas with paint to prevent rust.

8. Replace decals is damaged or in unreadable condition.

9. Coat exposed of the cylinder rods with grease.

10. Grease all grease ttings. (See Section H)

11. Store the unit in a dry and protected place. Leaving the unit outside will materially
shorten its life.

REMOVING FROM STORAGE

1. Remove all protective coverings.

2. Check hydraulic hoses for deterioration and replace if necessary.

3. Check all nuts and bolts for tightness, especially those securing the motor, gear
box and teeth.

TRANSPORTING

1. Follow all federal, state and local regulations when transporting on public roads.

2. Use extra care when loading or unloading onto a trailer or truck.

CAUTION: Be sure to install a SMV (Slow Moving Vehicle) sign on loader before
transporting.
When transporting on a road or highway at night or during the day,
use accessory lights and devices for adequate warning to the opera
tors of other vehicles. In this regard, check local and government regu
lations. Always drive slowly over uneven terrain to avoid tipping the
unit.

STUMP GRINDER

TROUBLESHOOTING

9732

9-21-04

N N

PROBLEM

Motor will not operate.

Wheel rotates sluggishly

Leaking Oil

Insufcient Power.

Cylinders Operate in the wrong
direction.

Cylinder speed is either too fast
or too slow.

POSSIBLE CAUSE

Auxiliary hoses not hooked up to
the skid steer.

Obstruction in hydraulic lines

Skid-steer auxiliary valve not
engaged.

Insufcient hydraulic ow from

the skid steer.

Damaged quick coupler.

Oil Filter on the skid-steer is dirty.

Internal Motor Leakage.

Gearbox Failure

Loose or damaged hydraulic line.

O-Rings on ttings damaged.

Fittings loose or damaged.

Cylinder seal damaged.

Motor seals damaged

Insufcient hydraulic ow from

skid-steer.

Relief valve settings to low.

Oil lter on skid-steer is dirty.

Hoses from the valve to skid
steer incorrectly connected.

Incorrect wiring from joystick
control.

Cylinder speed adjusted incor­rectly

POSSIBLE REMEDY.

Engage Couplers.

Remove Obstruction and replace
if necessary

Engage auxiliary valve.

Refer to Skid Steers Owners
Manual.

Replace if necessary

Refer to Skid Steers Owners
Manual.

Call DIGGA service department.

Call DIGGA service deparment.

Tighten or Replace.

Replace if necessary.

Tighten or Replace.

Replace cylinder seals.

Call DIGGA service department.

Refer to Skid Steers Owners
Manual.

Refer to Skid Steers Owners
Manual.

Refer to Skid Steers Owners
Manual.

Switch couplers at the skid steer
end.

Check wiring diagram and cor­rect.

Adjust the cylinder speed knob on
the control valve.

TROUBLESHOOTING

9733

9-21-04

N N

PROBLEM

Excessive Oil Temperature.

Wheel Rotates in the wrong di­rection.

Excessive Vibration

Cylinders will not Function

POSSIBLE CAUSE

Hydraulic oil level to low.

Excessive stalling of cutting
wheel.

Obstruction in hydraulic lines.

Hydraulic oil or oil lter in skid

steer is dirty.

Relief valve setting to low.

Couplers not engaged.

Hoses are switched at the motor.

Broken, Damaged or missing
teeth.

Bent Gearbox Shaft

Faulty Switch or electrical con­nection.

Faulty control valve coil.

Damaged spool in control valve.

POSSIBLE REMEDY.

Refer to Skid-Steers Owners
Manual

Decrease Cutting Depth and
Swing speed.

Remove Obstruction and replace
if necessary.

Refer to Skid-Steers Owners
Manual

Refer to Skid-Steers Owners
Manual

Engage Couplers

Switch motor hoses.

Replace as necessary.

Call DIGGA Service Department.

Repair or replace as necessary.

Replace coil.

Replace spool.

BOLT TORQUE

9383

1-31-07-2

O O

GENERAL TORQUE SPECIFICATION TABLE

Use the following torques when special torques are not given. These values apply to fas­teners as received from suppliers, dry, or when lubricated with normal engine oil. They
do not apply if special graphited or moly disulphide greases or other extreme pressure
lubricants are used. This applies to both UNF and UNC threads. Remember to always use

grade ve or better when replacing bolts.

BOLT TORQUE SPECIFICATIONS

SPECIFICATIONS

9779

7-29-04

P P

DECALS

9780

1-31-07-2

Q Q

DECAL PLACEMENT

GENERAL INFORMATION

The diagram on this page shows the location of the decals used on the

DIGGA Rear Discharge Stump Grinders. The decals are identied by their part

numbers, with reductions of the actual decals located on the following pages.

Use this information to order replacements for lost or damaged decals. Be sure

to read all decals before operating the stump grinder. They contain information

you need to know for both safety and attachment longevity.

IMPORTANT: Keep all safety signs clean and legible. Replace all missing, illegible or dam-

aged safety signs. When replacing parts with safety signs attached, the safety signs must

also be replaced.

REPLACING SAFETY DECALS: Clean the area of application with a nonammable sol-

vent, then wash the same area with soap and water. Allow the surface to dry. Remove the

backing from the safety sign, exposing the adhesive surface. Apply the safety sign to the

position shown in the diagram above and smooth out any bubbles.

DECALS

Q Q

9383

1-31-07-2

DECALS

9782

9-21-04

Q Q

DIGGA

PREDELIVERY CHECKLIST

9480

3-2-04

R R

GENERAL INFORMATION

The following is a list of areas that should be inspected by the dealer prior
to delivery of the attachment to the customer. The customer should check the list
and make sure that the dealer has completed the inspection. Completion of this
checklist will help insure that the customer receives the attachment in complete
working order, ready to install.

PREDELIVERY CHECKLIST - CHECK AND ADJUST AS NECESSARY

1. ______ Visually inspect the attachment for bent, cracked, damaged or
missing parts. Check for any other irregularities.

2. ______ Check and lubricate attachment if necessary. See “Lubrication”
Section H.

3. ______ Check bolts for tightness daily. Retighten after the rst eight working

hours.

4. ______ Remove paint from unnished chrome surfaces of cylinders.

5. ______ Run cylinders through their full cycle to purge any air from the
system.

6. ______ Check all hydraulic connections for leaks and hoses for proper

positioning to reduce chang and binding.

7. ______ Make sure all decals are not damaged or missing and are in their
correct location. See “Decals” Section Q.

8. ______ Make sure customer has the necessary couplers to attach the
power and return hoses to the skid-steer auxiliary hydraulic couplers.

9. ______ Complete and return the manufacturers “Warranty Validation From”
and sign your dealership predelivery checklist.

LIMITED WARRANTY

9383

1-31-07-2

S S

All new DIGGA products are warranted to be free from defects in materials or work­manship which may cause failure under normal usage and service when used for the pur­pose intended.

In the event of failure within twelve (12) months from initial retail sale, lease or rental
date (excluding cable, ground engaging parts such as sprockets, digging chain, bearings,
teeth, tamping and demolition heads, blade cutting edges, pilot bits, auger teeth, auger
heads & broom bristles), if after examination, DIGGA determines failure was due to defec­tive material and/or workmanship, parts will be repaired or replaced. DIGGA may request
defective part or parts be returned prepaid to them for inspection at their place of business

at Yatala,QLD or to a location specied by DIGGA.

Any claims under this warranty must be made within fteen (15) days after the

Buyer learns of the facts upon which such claim is based. All claims not made in writing

and received by DIGGA within the time period specied above shall be deemed waived.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED
OR IMPLIED AND THERE ARE NO WARRANTIES OF MERCHANTABILITY OR OF FIT­NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL DIGGA BE LIABLE FOR
CONSEQUENTIAL OR SPECIAL DAMAGE.

DIGGA’S LIABILITY FOR ANY AND ALL LOSSES AND DAMAGES TO BUYER,
RESULTING FROM ANY CAUSE WHATSOEVER, INCLUDING DIGGA’S NEGLIGENCE,
IRRESPECTIVE OF WHETHER SUCH DEFECTS ARE DISCOVERABLE OR LATENT,
SHALL IN NO EVENT EXCEED THE PURCHASE PRICE OF THE PARTICULAR PROD­UCTS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED, OR, AT
THE ELECTION OF DIGGA, THE REPAIR OR REPLACEMENT OF DEFECTIVE OR
DAMAGED PRODUCTS.