The purpose of this publication is to provide the service
technician with information for troubleshooting, testing,
and repair of major systems and components on the
Groundsmaster 3000 and 3000–D.
REFER TO THE TRACTION UNIT AND CUTTING
UNIT OPERATOR’S MANUALS FOR OPERATING,
MAINTENANCE AND ADJUSTMENT INSTRUCTIONS. Space is provided in Chapter 2 of this book to
insert the Operator’s Manuals and Parts Catalogs for
your machine. Replacement Operator’s Manuals are
available by sending complete Model and Serial Number to:
The Toro Company
8111 Lyndale Avenue South
Bloomington, MN 55420
The Toro Company reserves the right to change product
specifications or this publication without notice.
Part No. 96890SL Rev. C
Service Manual
This safety symbol means DANGER, WARNING, or CAUTION, PERSONAL SAFETY
INSTRUCTION. When you see this symbol,
carefully read the instructions that follow.
Failure to obey the instructions may result in
personal injury.
NOTE: A NOTE will give general information about the
correct operation, maintenance, service, testing or repair of the machine.
IMPORTANT: The IMPORTANT notice will give important instructions which must be followed to prevent damage to systems or components on the
machine.
General Information
Hydraulic Schematics
Hydraulic Components
Special Tools
Testing
Adjustments
Service and Repairs
SAUER–SUNDSTRAND IHT SERVICE MANUAL
Special Tools
Troubleshooting (GM3000)
Troubleshooting (GM3000–D)
Electrical System Quick Checks
Component Identification and Testing
Service and Repairs
The GROUNDSMASTERR 3000 and 3000-D was
tested and certified by TORO for compliance with the
B71.4—1990 specifications of the American National
Standards Institute. Although hazard control and accident prevention partially are dependent upon the design
and configuration of the machine, these factors are also
dependent upon the awareness, concern, and proper
training of the personnel involved in the operation, transport, maintenance, and storage of the machine. Improper use or maintenance of the machine can result in injury
or death. To reduce the potential for injury or death, comply with the following safety instructions.
Before Operating
1. Read and understand the contents of this manual
before starting and operating the machine. Become familiar with all controls and know how to stop quickly. A
free replacement manual is available by sending complete Model and Serial Numbers to:
The Toro Company
8111 Lyndale Avenue South
Minneapolis, Minnesota 55420–1196.
Use the Model and Serial Number when referring to your
machine. If you have questions about this Service
Manual, please contact:
The Toro Company
Commercial Service Department
8111 Lyndale Avenue South
Minneapolis, Minnesota 55420.
TO REDUCE THE POTENTIAL FOR INJURY
OR DEA TH, COMPL Y WITH THE FOLLOWING
SAFETY INSTRUCTIONS.
3. Never operate machine when under the influence of
drugs or alcohol.
4. Remove all debris or other objects that might be
picked up and thrown by cutter blades or fast moving
components from other attached implements. Keep all
bystanders away from the operating area.
5. Keep all shields and safety devices in place. If a
shield, safety device, or decal is defective or damaged,
repair or replace it before operation is commenced.
Also, tighten any loose nuts, bolts, and screws to insure
machine is in safe operating condition.
6. Do not wear loose–fitting clothing because it could
get caught in moving parts. Always wear long pants and
substantial shoes. Wearing safety glasses, safety
shoes, and a helmet is advisable and required by some
local ordinances and insurance regulations.
2. Never allow children to operate the machine. Do not
allow adults to operate the machine without proper
instruction. Only trained operators, skilled in slope operation and who have read this manual should operate
this machine.
Groundsmaster 3000/3000–D
Page 1 – 1
Safety
7. Check interlock switches daily for proper operation.
Do not rely entirely on safety switches -shut off engine
before getting off seat. If a switch fails, replace it before
operating the machine. The interlock system is for your
protection, so do not bypass it. Replace all interlock
switches every two years. Interlock switches should be
adjusted so:
A. Engine cannot be started unless traction pedal
is released (neutral position).
B. Engine stops if operator gets off seat when
traction pedal is depressed.
C. PTO disengages if operator gets off seat when
PTO lever is ENGAGED (on position).
8. Fill fuel tank with diesel fuel before starting the en-
gine. Avoid spilling any fuel. Since diesel fuel is flammable, handle it carefully.
A. Use an approved fuel container.
B. Do not fill fuel tank when engine is hot or
running.
C. Do not smoke while handling fuel.
D. Fill fuel tank outdoors and up to about one
inch (25 mm) from the top of the tank, not
the filler neck.
E. Wipe up any spilled fuel.
9. Sit on the seat when starting the engine and operat-
ing the machine.
10. Always use seat belt and ROPS together. Make
sure seat is latched.
11. Before starting the engine:
A. Engage parking brake.
B. Make sure traction pedal is in neutral.
C. After engine is started, release parking brake
and keep foot off traction pedal. Machine must not
move. If movement is evident, the neutral return
mechanism is adjusted incorrectly. Shut engine
off and adjust until machine does not move when
traction pedal is released.
12. Do not run the engine in a confined area without ad-
equate ventilation. Exhaust fumes are hazardous and
could possibly be deadly.
13. Maximum seating capacity is one person. There-
fore, never carry passengers.
14. This traction unit is intended to be used with an im-
plement. Refer to implement operator’s manual for
sound and vibration information and rear weight requirements.
15. Check carefully for overhead clearances before
driving under any objects.
While Operating
16. Using the machine demands the operator’s com-
plete attention. To prevent loss of control:
A. Operate only in daylight or when there is good
artificial light.
B. Drive slowly.
C. Avoid sudden stops and starts.
D. Look behind machine before backing up.
E. Watch for holes or other hidden hazards.
F. Do not drive close to a sand trap, ditch, creek,
or hazard.
G. Reduce speed when making sharp turns and
when turning on a hillside.
H. The cutting deck must be lowered when going
down slopes for steering control.
17. Operator must be skilled and trained in how to drive
on hillsides. Failure to use caution on slopes or hills may
cause loss of control and vehicle to tip or roll possibly resulting in personal injury or death.
18. Traverse slopes carefully. Do not start or stop sud-
denly when traversing slopes or when traveling uphill or
downhill.
19. If engine stalls or machine loses headway and can-
not make it to the top of a slope, do not turn machine
around. Always back slowly straight down the slope.
20. This product is designed to drive objects into the
ground where they lose energy quickly in grassy areas.
However, don’t take an injury risk!!
appears unexpectedly in or near the mowing area,
STOP MOWING. Careless operation, combined with
terrain angles, ricochets, or improperly positioned
guards, can lead to thrown object injuries. Do not resume mowing until area is cleared.
21. Never raise the cutting unit or other attached imple-
ment while the blades or other parts are rotating.
22. If cutting blades or other implement components
strike a solid object or the machine vibrates abnormally,
disengage PTO, move throttle to SLOW, set parking
brake, and shut engine off. Remove key from switch to
prevent possibility of accidental starting. Check cutting
unit or other implement and traction unit for damage and
defective parts. Repair any damage before restarting
the engine and operating the implement or cutting unit.
Assure cutting unit blades are in good condition and
blade bolts are torqued to proper specifications (See
Cutting Deck Operator’s Manual).
23. To stop machine, remove foot from traction pedal
and use brakes. Gradually reversing the traction pedal
can provide additional braking.
When a person or pet
Safety
Page 1 – 2
Groundsmaster 3000/3000–D
24. Do not touch engine, muffler, or radiator while en-
gine is running or soon after it has stopped. These areas
could be hot enough to cause a burn.
25. Lower the cutting unit or other attached implement
to the ground and remove key from switch whenever
machine is left unattended.
Maintenance
26. Before getting off the seat:
A. Move traction pedal to neutral position and remove foot from pedal.
B. Set the parking brake and disengage the PTO.
C. Shut the engine off and remove key from igni-
tion switch. Wait for all movement to stop before
getting off the seat.
Safety
27. Remove key from ignition switch to prevent acci-
dental starting of the engine when servicing, adjusting,
or storing the machine.
28. If major repairs are ever needed or assistance is de-
sired, contact an Authorized TORO Distributor.
29. To reduce potential fire hazard, keep the engine free
of excessive grease, grass, leaves, and accumulations
of dirt. Never wash a warm engine or electrical connections with water.
30. If the cutting unit discharge area ever plugs, disen-
gage PTO and shut engine off before removing the obstruction.
31. Make sure machine is in safe operating condition by
keeping nuts, bolts, and screws tight. Check attachment
mounting hardware and all cutting unit blade mounting
bolts frequently to assure they are torqued to proper
specifications.
32. Periodically inspect the roll bar and roll bar mount-
ing. Repair, as necessary. Do not weld, cut, drill, or
modify roll bar in any manner.
33. Make sure all hydraulic line connectors are tight,
and all hydraulic hoses and lines are in good condition
before applying pressure to the system.
34. Keep body and hands away from pin hole leaks or
nozzles that eject hydraulic fluid under high pressure.
Use paper or cardboard, not hands, to search for leaks.
Hydraulic fluid escaping under pressure can have sufficient force to penetrate skin and do serious damage. If
fluid is ejected into the skin, it must be surgically removed within a few hours by a doctor familiar with this
form of injury or gangrene may result.
35. Before disconnecting or performing any work on the
hydraulic system, all pressure in system must be relieved by stopping engine and lowering implement to the
ground.
36. If the engine must be running to perform mainte-
nance or an adjustment, keep clear of PTO shaft, cutting
unit blades, and other moving parts.
37. Do not overspeed the engine by changing the gov-
ernor settings. To ensure safety and accuracy, have an
Authorized TORO Distributor check maximum engine
speed with a tachometer.
38. Engine must be shut off before checking oil or ad-
ding oil to the crankcase.
39. At the time of manufacture, the machine conformed
to safety standards in effect for riding mowers. To ensure
optimum performance and continued safety certification
of the machine, use genuine TORO replacement parts
and accessories. Replacement parts and accessories
made by other manufacturers may result in non–conformance with the safety standards, and the warranty may
be voided.
Groundsmaster 3000/3000–D
Page 1 – 3
Safety
Safety and Instruction Decals (Groundsmaster 3000)
The following safety and instruction decals are mounted on the traction unit. If any decal becomes damaged or illegible, install a new decal. Part numbers are listed below or in your parts catalog.
On Side of Tool Box
(Part No. 67–1710)
Next to Right Side of Seat
(Part No. 93–5935)
On Fuse Compartment Cover
(Part No. 93–5931)
In Compartment Behind Control panel
(Part No. 93–5933)
ON FAN SHROUD
(Part No. 77–3100)
On Hood
(Part No. 93–6328)
On Right Side Of Center
Shroud
(Part No. 93–5617)
On Steering Tower
(Part No. 95–0814)
Safety
On Tool Box Cover
(Part No. 93–5621)
On Control Panel
(Part No. 93–5426)
On Frame Above Front Axle
(Part No. 85–4730)
Page 1 – 4 Rev. A
On Frame Next to Traction Pedal
(Part No. 92–5772)
Groundsmaster 3000/3000–D
Safety and Instruction Decals (Groundsmaster 3000–D)
The following safety and instruction decals are mounted on the traction unit. If any decal becomes damaged or illegible, install a new decal. Part numbers are listed below or in your parts catalog.
On Side of Tool Box
(Part No. 67–1710)
In Compartment Behind Control panel
Next to Right Side of Seat
(Part No. 93–5934)
(Part No. 93–5932)
ON FAN SHROUD
(Part No. 77–3100)
Safety
On Fuse Compartment Cover
(Part No. 93–5930)
On Tool Box Cover
(Part No. 93–5621– Model 30301)
(Part No. 93–5622– Model 30302)
On Radiator Near Inlet
(Part No. 93–7275)
On Steering Tower
(Part No. 95–0814)
On Frame Above Front Axle
(Part No. 85–4730)
Groundsmaster 3000/3000–D
On Control Panel
(Part No. 93–5425)
Page 1 – 5
Rev. A
On Frame Next to Traction Pedal
(Part No. 92–5772)
Safety
Safety and Instruction Decals (84I Cutting Units)
The following safety and instruction decals are mounted on the cutting unit. If any decal becomes damaged or illegible,
install a new decal. Part numbers are listed below or in your parts catalog.
On Each Corner Of
Cutting Unit
(Part No. 43–8480)
On Gearbox Base
(Part No. 93–6697)
On Right & Left Covers
(Part No. 93–0299)
On Front of Deck
(Part No. 88–1270)
On Front of Cutting Unit
(Part No. 68–8340)
On Deck Channels, Under Covers
(Part No. 85–6410)
Safety
On Right Rear Top of Deck Under Cover
(Part No. 93–4688)
On Each Corner Of
Cutting Unit
(Part No. 93–7815)
Replaces Decal Part No.
43–8480 for CE
On Right Rear Top of Deck On left Rear Top of Deck
Page 1 – 6 Rev. A
On Front of Cutting Unit
(Part No. 93–7818)
Replaces Decal Part No.
68–8340 for CE
Under Cover Under Cover
(Part No. 94–3392) (Part No. 93–4691)
Groundsmaster 3000/3000–D
On Front of Deck
(Part No. 66–1340)
Safety
On Rear of Deck
(Part No. 66–6380)
On Rear Of Deck
(Part No. 93–7828)
Replaces Decal Part No.
66–6380 for CE
On Front Of Deck
(Part No. 93–7824)
Replaces Decal Part No.
66–1340 for CE
On Each Castor Arm
(Part No. 93–4690)
On Each Castor Arm
(Part No. 93–4894)
On Deck Channels, Under Covers
(Part No. 93–7814)
Replaces Decal Part No. 85–6410 for CE
Groundsmaster 3000/3000–D
Page 1 – 7
Rev. A
Safety
Safety and Instruction Decals (Contour 82I Cutting Unit)
The following safety and instruction decals are mounted on the cutting unit. If any decal becomes damaged or illegible,
install a new decal. Part numbers are listed below or in your parts catalog.
On Sides of Right &
Left Chambers
(Part No. 43–8480)
On Top of Chamber 2
(Part No. 88–1270)
On Chamber 1 & 4 Castor Supports
(Part No. 95–6001)
On Right & Left Chambers
(Part No. 93–0299)
On Top of Chamber 3
(Part No. 93–7818)
Replaces Decal Part No.
68–8340 for CE
On Top of Chamber 3
(Part No. 68–8340)
On Sides of Right &
Left Chambers
(Part No. 93–7815)
Replaces Decal Part No.
43–8480 for CE
On Top of Rear Castor
(Chamber 1)
(Part No. 95–6003)
On Left Lift Arm On Right Lift Arm
(Part No. 95–6008) (Part No. 95–6005)
Safety
Page 1 – 8
On Top of Rear Castor
(Chambers 2 & 4)
(Part No. 95–6002)
On Side of Rear Support
(Chamber 3)
(Part No. 95–6004)
Groundsmaster 3000/3000–D
Safety and Instruction Decals (Guardian 72I Recycler Cutting Unit)
The following safety and instruction decals are mounted on the cutting unit. If any decal becomes damaged or illegible,
install a new decal. Part numbers are listed below or in your parts catalog.
Safety
On Each Corner Of
Cutting Unit
(Part No. 43–8480)
On Gearbox Base
(Part No. 93–6697)
On Front of Cutting
Unit
(Part No. 93–7818)
Replaces Decal Part No.
68–8340 for CE
On Left Caster Arm
(Part No. 93–0299)
On Front of Deck
(Part No. 88–1270)
On Front of Cutting Unit
(Part No. 68–8340)
On Deck Channels, Under Covers
(Part No. 85–6410)
On Right Rear Top of Deck Under Cover
(Part No. 85–6120)
On Each Corner Of
Cutting Unit
(Part No. 93–7815)
Replaces Decal Part No.
43–8480 for CE
On Front Deck Hanger
(Part No. 93–4690)
Groundsmaster 3000/3000–D
On Right Rear Top of Deck On left Rear Top of Deck
(Part No. 94–3392)
(Part No. 93–4691)
On Deck Channels, Under Covers
(Part No. 93–7814)
Replaces Decal Part No. 85–6410 for CE
Page 1 – 9
Safety
Safety and Instruction Decals (Rear Discharge 72I Cutting Unit)
The following safety and instruction decals are mounted on the cutting unit. If any decal becomes damaged or illegible,
install a new decal. Part numbers are listed below or in your parts catalog.
On Gearbox Base
(Part No. 93–6697)
On Front of Deck
(Part No. 68–8340)
On Front of Deck
(Part No. 93–7818)
Replaces Decal Part No.
68–8340 for CE
On Each Corner Of
Deck
(Part No. 43–8480)
On Left Caster Arm
(Part No. 93–0299)
On Front Deck Hanger
(Part No. 93–4690)
On Deck Channels, Under Covers
(Part No. 93–7814)
Replaces Decal Part No. 85–6410 for CE
Safety
On Each Corner Of
Deck
(Part No. 93–7815)
Replaces Decal Part No.
43–8480 for CE
On Right Rear Top of Deck Under Cover
(Part No. 85–6120)
Page 1 – 10
Groundsmaster 3000/3000–D
On Front of Deck
(Part No. 66–6380)
On Rear Of Deck
(Part No. 93–7828)
Replaces Decal Part No.
66–6380 for CE
On Rear Of Deck
(Part No. 93–4977)
On Front of Deck
(Part No. 66–1340)
On Deck Channels, Under Covers
(Part No. 85–6410)
On Right Rear Top of Deck On left Rear Top of Deck
Capscrew Markings and Torque Values – U.S. . . 3
Capscrew Markings and Torque Values – Metric . 3
QUICK REFERENCE MAINTENANCE AID . . . . . . . 4
Product Records
Record information about your Groundsmaster 3000 or
3000–D on the OPERATION AND SERVICE HISTORY
REPORT form. Use this information when referring to
your machine.
Insert Operator’s Manuals and Parts Catalogs for your
Groundsmaster 3000 or 3000–D at the end of this section.
Product Records
and Maintenance
Groundsmaster 3000/3000–D
Page 2 – 1
Product Records and Maintenance
Equivalents and Conversions
Product Records and Maintenance
Page 2 – 2
Groundsmaster 3000/3000–D
Torque Specifications
Product Records
and Maintenance
Groundsmaster 3000/3000–D
Page 2 – 3
Product Records and Maintenance
800
800
Product Records and Maintenance
Page 2 – 4 Rev. A
800 800
400
Groundsmaster 3000/3000–D
Lubrication
Traction Unit
CAUTION
Before servicing or making adjustments to the
machine, stop engine and remove key from the
switch.
The machine has grease fittings that must be lubricated
regularly with No. 2 General Purpose Lithium Base
Grease. If machine is operated under normal conditions, lubricate all bearings and bushings after every 50
hours of operation or immediately after every washing.
Rear axle tie rod (2), Rear axle pivot (1) Rear Spindle
Shafts (2) (Fig. 1).
Figure 3
Product Records
and Maintenance
4 Wheel Drive Models only–Steering cylinder ball
joints, Rear axle tie rod (2), Rear axle pivot (1), Double
Cardan joints (2 ea. side) (Fig. 2) and Rear DrIve Shaft
(3) (Fig.3)
All Models–Intermediate Drive Shaft (3) (Fig. 4); Pedal
Pivots (5), Traction pedal (In square tube under floor
plate) (1) (Fig. 5) and Lift arm pivot (2) (Fig. 6).
Figure 1
Figure 4
Figure 5
Figure 2
Groundsmaster 3000/3000–D
Page 2 – 5
Figure 6
Product Records and Maintenance
Cutting Units
If machine is operated under normal conditions, lubricate castor bearings and bushings with No. 2 general
purpose lithium base grease or molybdenum base
grease, after every 8 hours of operation or daily, whichever comes first. Lubricate fittings immediately after every washing, regardless of the interval listed.
Guardian 84I Recyler Cutting Unit
CAUTION
Before servicing or making adjustments to the
machine, stop engine and remove key from the
switch.
Product Records and Maintenance
Figure 7
Page 2 – 6
Groundsmaster 3000/3000–D
Rear Discharge 84I Cutting Unit
Product Records
and Maintenance
Contour 82I Cutting Unit
Figure 8
Groundsmaster 3000/3000–D
Figure 9
Page 2 – 7
Product Records and Maintenance
Guardian 72I Recycler Cutting Unit
Figure 10
Rear Discharge 72I Cutting Unit
Product Records and Maintenance
Figure 11
Page 2 – 8
Groundsmaster 3000/3000–D
EQUIPMENT OPERATION AND SERVICE HISTORY REPORT
for
GROUNDSMASTERR 3000
TORO Model and Serial Number: ______________–______________
{ Initial break in at 10 hours
} Initial break in at 50 hours
= Initial break in at 200 hours
Replace Moving Hoses
Replace Safety Switches
Cooling System Flush/Replace Fluid
(See Operator’s Manual for specifications and procedures.)
Product Records and Maintenance
Page 2 – 10
E Level
Service
Annual Recommendations:
Items listed are recommended every 1500
hours or 2 years, whichever occurs first.
Groundsmaster 3000/3000–D
GroundsmasterR3000 Daily Maintenance Check List
Unit Designation: ____________
TORO ID #: ________–________
Daily Maintenance: (duplicate this page for routine use)
Check proper section of Operator’s Manual for fluid specifications
Maintenance
Check Item b
n Safety Interlock Operation
n Brake Operation
n Engine Oil & Fuel Level
n Cooling System Fluid Level
n Radiator & Screen for Debris
n Unusual Engine Noises
n Unusual Operating Noises
n Hydraulic System Oil Level
n Hydraulic Hoses for Damage
n Fluid Leaks
n Tire Pressure
n Instrument Operation
Lubricate All Grease Fittings
Touch–up Damaged Paint
1
= Immediately after every washing, regardless of the interval listed.
Daily Maintenance Check For Week Of _________________
MON TUES WED THURS FRI SAT SUN
1
Product Records
and Maintenance
Notation for areas of concern: Inspection performed by__________________
Item Date Information
1
2
3
4
5
6
7
8
Groundsmaster 3000/3000–D
Page 2 – 11
Product Records and Maintenance
Date: ________________
Check Governor Oil Level
Torque Wheel Lug Nuts
Service Spark Arrestor Muffler
__________________________
A and B – Service Required
________________________________
_______________________________
_______________________________
_______________________________
Replace Moving Hoses
Replace Safety Switches
Cooling System Flush/Replace Fluid
_______________________________
Other – Annual Service & Specials
_______________________________
_______________________________
_______________________________
_______________________________
Remarks:
3000 Supervisor Maintenance Work Order
R
A B C D E Other
__________________–__________________
TORO I.D. #:
Service to perform (circle):
Groundsmaster
Unit Designation:
(Duplicate this page for routine use.)
Hours:
Technician:
_______________________________
Change Engine Oil and Filter
Inspect Cooling System Hoses
Check Tension of all drive belts
Lubricate All Grease Fittings
A– Service (every 50 hours) B – Service (every 100 hours) C – Service (every 200 hours)
Check Battery Level/Cable Connections
Inspect Air Filter
_______________________________
A – Service Required
Check Cutting Unit Gearbox Oil Level
_______________________________
Clean Under Cutting Unit Belt Covers
Check Cutting Unit Drive Belt Adjustment
_______________________________
________________________________
________________________________
_______________________________
________________________________
E – Service (every 800 hours)
Drain and Clean Fuel Tank
Pack Rear Axle Bearings
Change Fuel Filter
Service Air Filter
D – Service (every 400 hours)
Change Hydraulic Oil
Check Rear Wheel Toe–In
Inspect Fuel Lines and Connections
Change Hydraulic Filter
Change Spark Plugs
Check Engine RPM (idle & Full Throttle)
_______________________________
A, B, C, and D – Service Required
Torque Head Bolts and Adjust Valves
Change Cutting Unit Gearbox Oil
_______________________________
_______________________________
________________________________
A, B and C – Service Required
(See Operator’s and Service Manual for specifications and procedures.)
Product Records and Maintenance
Page 2 – 12
Groundsmaster 3000/3000–D
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