Toro 30581 Groundsmaster 580-D User manual

Operator’s Manual
English (EN, GB)
Form No. 3328–909
Groundsmaster580-D
Traction and Cutting Units
Model No. 30581—230000001 and Up

2
All Rights Reserved
Printed in the USA
2001 by The Toro Company
8111 Lyndale Avenue South
Bloomington, MN 55420-1196
CALIFORNIA
Proposition 65 Warning
Diesel engine exhaust and some of its constituents
are known to the State of California to cause
cancer, birth defects, and other reproductive harm.
Warning
Contents
Page
Introduction 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safe Operating Practices 3. . . . . . . . . . . . . . . . . . . .
Toro Riding Mower Safety 5. . . . . . . . . . . . . . . . . . .
Sound Pressure Level 6. . . . . . . . . . . . . . . . . . . . . . .
Sound Power Level 6. . . . . . . . . . . . . . . . . . . . . . . .
Vibration Level 6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety and Instruction Decals 7. . . . . . . . . . . . . . . . .
Specifications 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Traction Unit 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
All Cutting Units 13. . . . . . . . . . . . . . . . . . . . . . . . . .
Triflex Cutting Unit (Front) 13. . . . . . . . . . . . . . . . .
Outboard Cutting Units 14. . . . . . . . . . . . . . . . . . . . .
Dimensions 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Equipment 14. . . . . . . . . . . . . . . . . . . . . . . .
Setup 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the Batteries 15. . . . . . . . . . . . . . . . . . . . . .
Before Operating 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the Engine Oil 16. . . . . . . . . . . . . . . . . . . .
Checking the Cooling System 17. . . . . . . . . . . . . . . .
Checking the Hydraulic System Fluid 17. . . . . . . . . .
Filling the Fuel Tank 17. . . . . . . . . . . . . . . . . . . . . . .
Checking the Tire Pressure 18. . . . . . . . . . . . . . . . . .
Checking Systems Operation 18. . . . . . . . . . . . . . . . .
Checking Cutting Unit Mismatch 18. . . . . . . . . . . . .
Adjusting the Height of Cut 18. . . . . . . . . . . . . . . . . .
Adjusting the Skids 19. . . . . . . . . . . . . . . . . . . . . . . .
Operation 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controls 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting and Stopping the Engine 24. . . . . . . . . . . . . .
Bleeding the Fuel System 25. . . . . . . . . . . . . . . . . . . .
Page
Diagnostic Light 25. . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic ACE Display 26. . . . . . . . . . . . . . . . . . . .
Checking the Interlock Switches 26. . . . . . . . . . . . . .
Checking the Warning Indicator Lights 30. . . . . . . . .
Pushing or Towing the Machine 30. . . . . . . . . . . . . .
Operating Characteristics 30. . . . . . . . . . . . . . . . . . . .
Maintenance 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Maintenance Schedule 32. . . . . . . . .
Daily Maintenance Checklist 34. . . . . . . . . . . . . . . . .
Lubrication 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil and Filter 36. . . . . . . . . . . . . . . . . . . . . . .
Engine Fuel System 38. . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling System 38. . . . . . . . . . . . . . . . . . . . .
Servicing the Air Cleaner 40. . . . . . . . . . . . . . . . . . . .
Servicing the Hydraulic System 41. . . . . . . . . . . . . . .
Servicing the Planetary Gear Drive 43. . . . . . . . . . . .
Servicing the Battery 44. . . . . . . . . . . . . . . . . . . . . . .
Fuses and Circuit Breaker 45. . . . . . . . . . . . . . . . . . .
Servicing the Brake System 45. . . . . . . . . . . . . . . . . .
Wheels and Tires 45. . . . . . . . . . . . . . . . . . . . . . . . . .
Cutting Unit Lubrication 46. . . . . . . . . . . . . . . . . . . .
Blade Maintenance 46. . . . . . . . . . . . . . . . . . . . . . . . .
Blade Bolt Torque 47. . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Cutting Unit Blade 47. . . . . . . . . . . . .
Inspecting and Sharpening the Blade 48. . . . . . . . . . .
Inspecting and Adjusting Cutting Unit Belt Tension 49.
Replacing the Blade Drive Belts 49. . . . . . . . . . . . . .
Separating Cutting Units from Traction Unit 51. . . . .
Checking and Correcting Cutting Blade Mismatch 51
Adjusting the Winglet Stabilizers 52. . . . . . . . . . . . .
Adjusting Traction Control Neutral 53. . . . . . . . . . . .
Adjusting the Traction (Neutral) Switch 53. . . . . . . .
Adjusting the Traction Control Rod 54. . . . . . . . . . . .
Cylinder Head Bolts 54. . . . . . . . . . . . . . . . . . . . . . . .
Engine Valve Clearance 54. . . . . . . . . . . . . . . . . . . . .
Electrical Schematic 55. . . . . . . . . . . . . . . . . . . . . . . .
Controller Electrical Schematic 56. . . . . . . . . . . . . . .
Hydraulic Schematic 57. . . . . . . . . . . . . . . . . . . . . . .
The Toro General Commercial Products Warranty 60. . .

3
Introduction
Read this manual carefully to learn how to operate and
maintain your product properly. The information in this
manual can help you and others avoid injury and product
damage. Although Toro designs and produces safe
products, you are responsible for operating the product
properly and safely.
Whenever you need service, genuine Toro parts, or
additional information, contact an Authorized Service
Dealer or Toro Customer Service and have the model and
serial numbers of your product ready. A plate with the
model and serial numbers is located on the left bulkhead
below the operator’s seat and on the rear channel of each
cutting unit.
Write the product model and serial numbers in the space
below:
Model No.
Serial No.
This manual identifies potential hazards and has special
safety messages that help you and others avoid personal
injury and even death. Danger, Warning, and Caution are
signal words used to identify the level of hazard. However,
regardless of the hazard, be extremely careful.
Danger signals an extreme hazard that will cause serious
injury or death if you do not follow the recommended
precautions.
Warning signals a hazard that may cause serious injury or
death if you do not follow the recommended precautions.
Caution signals a hazard that may cause minor or moderate
injury if you do not follow the recommended precautions.
This manual uses two other words to highlight information.
Important calls attention to special mechanical
information and Note: emphasizes general information
worthy of special attention.
Safety
This machine meets or exceeds CEN standard EN
836:1997 (when appropriate decals applied), and ANSI
B71.4-1999 specifications in effect at the time of
production when equipped with required weights as
listed in the weight chart.
Improper use or maintenance by the operator or owner
can result in injury. To reduce the potential for injury,
comply with these safety instructions and always pay
attention to the safety alert symbol, which means
CAUTION, WARNING, or DANGER—“personal
safety instruction.” Failure to comply with the
instruction may result in personal injury or death.
Safe Operating Practices
The following instructions are from the CEN standard EN
836:1997, ISO standard 5395:1990, and ANSI B71.4-1999.
Training
•Read the operator’s manual and other training material
carefully. Be familiar with the controls, safety signs,
and the proper use of the equipment.
•If the operator or mechanic can not read the language of
this manual, it is the owner’s responsibility to explain
this material to them.
•Never allow children or people unfamiliar with these
instructions to use or service the mower. Local
regulations may restrict the age of the operator.
•Never mow while people, especially children, or pets
are nearby.
•Keep in mind that the operator or user is responsible for
accidents or hazards occurring to other people or their
property.
•Do not carry passengers.
•All drivers and mechanics should seek and obtain
professional and practical instruction. The owner is
responsible for training the users. Such instruction
should emphasize:
– the need for care and concentration when working
with ride-on machines;
– control of a ride-on machine sliding on a slope will
not be regained by the application of the brake. The
main reasons for loss of control are:
•insufficient wheel grip;
•being driven too fast;
•inadequate braking;
•the type of machine is unsuitable for the task;
•lack of awareness of the effect of ground
conditions, especially slopes;

4
•The owner/user can prevent and is responsible for
accidents or injuries occurring to himself or herself,
other people, or property.
Preparation
•While mowing, always wear substantial footwear, long
trousers, hard hat, safety glasses, and hearing
protection. Long hair, loose clothing, or jewelry may
get tangled in moving parts. Do not operate the
equipment when barefoot or wearing open sandals.
•Thoroughly inspect the area where the equipment is to
be used and remove all objects which may be thrown by
the machine.
•Warning—Fuel is highly flammable. Take the
following precautions:
– Store fuel in containers specifically designed for this
purpose.
– Refuel outdoors only and do not smoke while
refueling.
– Add fuel before starting the engine. Never remove
the cap of the fuel tank or add fuel while the engine
is running or when the engine is hot.
– If fuel is spilled, do not attempt to start the engine
but move the machine away from the area of
spillage and avoid creating any source of ignition
until fuel vapors have dissipated.
– Replace all fuel tank and container caps securely.
•Replace faulty silencers/mufflers.
•Evaluate the terrain to determine what accessories and
attachments are needed to properly and safely perform
the job. Only use accessories and attachments approved
by the manufacturer.
•Check that operator’s presence controls, safety switches
and shields are attached and functioning properly. Do
not operate unless they are functioning properly.
Operation
•Do not operate the engine in a confined space where
dangerous carbon monoxide fumes can collect.
•Mow only in daylight or in good artificial light.
•Before attempting to start the engine, disengage all
blade attachment clutches, shift into neutral, and engage
the parking brake.
•Do not put hands or feet near or under rotating parts.
Keep clear of the discharge opening at all times.
•EU (European Union) standard EN836 requires a
maximum slope usage angle statement. This stated
angle is 50% of the smallest angle recorded during the
of stability test. For this product this statement is; Do
not use on slopes of more than 10°.
•Remember there is no such thing as a safe slope. Travel
on grass slopes requires particular care. To guard
against overturning:
– do not stop or start suddenly when going up or
downhill;
– machine speeds should be kept low on slopes and
during tight turns;
– stay alert for humps and hollows and other hidden
hazards;
– never mow across the face of the slope, unless the
mower is designed for this purpose.
– Use counterweight(s) or wheel weights when
suggested in the operator’s manual.
•Stay alert for holes in the terrain and other hidden
hazards.
•Watch out for traffic when crossing or near roadways.
•Stop the blades from rotating before crossing surfaces
other than grass.
•When using any attachments, never direct discharge of
material toward bystanders nor allow anyone near the
machine while in operation.
•Never operate the machine with damaged guards,
shields, or without safety protective devices in place. Be
sure all interlocks are attached, adjusted properly, and
functioning properly.
•Do not change the engine governor settings or
overspeed the engine. Operating the engine at excessive
speed may increase the hazard of personal injury.
•Before leaving the operator’s position:
– stop on level ground;
– disengage the power take-off and lower the
attachments;
– change into neutral and set the parking brake;
– stop the engine and remove the key.
•Disengage drive to attachments when transporting or
not in use.
•Stop the engine and disengage drive to attachment
– before refuelling;
– before removing the grass catcher/catchers;
– before making height adjustment unless adjustment
can be made from the operator’s position.

5
– before clearing blockages;
– before checking, cleaning or working on the mower;
– after striking a foreign object or if an abnormal
vibration occurs. Inspect the mower for damage and
make repairs before restarting and operating the
equipment.
•Reduce the throttle setting during engine run-out and, if
the engine is provided with a shut-off valve, turn the
fuel off at the conclusion of mowing.
•Keep hands and feet away from the cutting units.
•Look behind and down before backing up to be sure of
a clear path.
•Slow down and use caution when making turns and
crossing roads and sidewalks. Stop blades from rotating.
•Be aware of the mower discharge direction and do not
point it at anyone.
•Do not operate the mower under the influence of
alcohol or drugs
•Use care when loading or unloading the machine into a
trailer or truck
•Use care when approaching blind corners, shrubs, trees,
or other objects that may obscure vision.
Maintenance and Storage
•Keep all nuts, bolts and screws tight to be sure the
equipment is in safe working condition.
•Never store the equipment with fuel in the tank inside a
building where fumes may reach an open flame or
spark.
•Allow the engine to cool before storing in any
enclosure.
•To reduce the fire hazard, keep the engine,
silencer/muffler, battery compartment and fuel storage
area free of grass, leaves, or excessive grease.
•Check the grass catcher frequently for wear or
deterioration.
•Keep all parts in good working condition and all
hardware and hydraulic fittings tightened. Replace all
worn or damaged parts and decals.
•If the fuel tank has to be drained, do this outdoors.
•Be careful during adjustment of the machine to prevent
entrapment of the fingers between moving blades and
fixed parts of the machine.
•On multi-spindle mowers, take care as rotating one
blade can cause other blades to rotate.
•Disengage drives, lower the cutting units, set parking
brake, stop engine and remove key and disconnect spark
plug wire (gas engine only). Wait for all movement to
stop before adjusting, cleaning or repairing.
•Clean grass and debris from cutting units, drives,
silencers/mufflers, and engine to help prevent fires.
Clean up oil or fuel spillage.
•Use jack stands to support components when required.
•Carefully release pressure from components with stored
energy.
•Disconnect battery and remove spark plug wire (gas
engine only) before making any repairs. Disconnect the
negative terminal first and the positive last. Reconnect
positive first and negative last.
•Use care when checking the blades. Wear gloves and
use caution when servicing them.
•Keep hands and feet away from moving parts. If
possible, do not make adjustments with the engine
running.
•Charge batteries in an open well ventilated area, away
from spark and flames. Unplug charger before
connecting or disconnecting from battery. Wear
protective clothing and use insulated tools.
Toro Riding Mower Safety
The following list contains safety information specific to
Toro products or other safety information that you must
know that is not included in the CEN, ISO, or ANSI
standard.
This product is capable of amputating hands and feet and
throwing objects. Always follow all safety instructions to
avoid serious injury or death.
Use of this product for purposes other than its intended use
could prove dangerous to user and bystanders.
Engine exhaust contains carbon monoxide, which
is an odorless, deadly poison that can kill you.
Do not run engine indoors or in an enclosed area.
Warning
•Know how to stop the engine quickly.
•Do not operate the machine while wearing tennis shoes
or sneakers.
•Wearing safety shoes and long pants is advisable and
required by some local ordinances and insurance
regulations.
•Handle fuel carefully. Wipe up any spills.

6
•Check the safety interlock switches daily for proper
operation. If a switch should fail, replace the switch
before operating the machine. After every two years,
replace all interlock switches in the safety system,
whether they are working properly or not.
•Before starting the engine, sit on the seat.
•Using the machine demands attention. To prevent loss
of control:
– Do not drive close to sand traps, ditches, creeks,
embankments, or other hazards.
– Reduce speed when making sharp turns. Avoid
sudden stops and starts.
– When near or crossing roads, always yield the
right-of-way.
– Apply the service brakes when going downhill to
keep forward speed slow and to maintain control of
the machine.
•When operating a machine on slopes, by banks, or drop
offs, always have ROPS (roll–over protection system)
installed.
•When operating a machine with ROPS (roll–over
protection system) always use the seat belt and make
sure seat pivot retainer pin is installed (GM only).
•Raise the cutting units when driving from one work
area to another.
•Do not touch the engine, silencer/muffler, or exhaust
pipe while the engine is running or soon after it has
stopped because these areas could be hot enough to
cause burns.
•On any hill, there is the possibility of tipping or rolling
over, but the risk increases as the slop angle increases.
Steep hills should be avoided.
– Cutting units must be lowered when going down
slopes to maintain steering control
•Engage traction drive slowly, always keep foot on
traction pedal, especially when traveling downhill.
– Use reverse on traction pedal for braking.
•If the machine stalls when climbing a slope, do not turn
the machine around. Always back slowly, straight down
the slope.
•When a person or pet 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 the area is cleared.
Maintenance and Storage
•Make sure all hydraulic line connectors are tight and all
hydraulic hoses and lines are in good condition before
applying pressure to the system.
•Keep your body and hands away from pin hole leaks or
nozzles that eject hydraulic fluid under high pressure.
Use paper or cardboard, not your hands, to search for
leaks. Hydraulic fluid escaping under pressure can have
sufficient force to penetrate the skin and cause serious
injury. Seek immediate medical attention if fluid is
injected into skin.
•Before disconnecting or performing any work on the
hydraulic system, all pressure in the system must be
relieved by stopping the engine and lowering the cutting
units and attachments to the ground.
•Check all fuel lines for tightness and wear on a regular
basis. Tighten or repair them as needed.
•If the engine must be running to perform a maintenance
adjustment, keep hands, feet, clothing, and any parts of
the body away from the cutting units, attachments, and
any moving parts.
•To ensure safety and accuracy, have an Authorized Toro
Distributor check the maximum engine speed with a
tachometer.
•If major repairs are ever needed or if assistance is
desired, contact an Authorized Toro Distributor.
•Use only Toro-approved attachments and replacement
parts. The warranty may be voided if used with
unapproved attachments.
Sound Pressure Level
This unit has an equivalent continuous A-weighted sound
pressure level at the operator ear of: 91 dB(A), based on
measurements of identical machines per Directive
98/37/EC and amendments.
Sound Power Level
This unit has a guaranteed sound power level of:
105 dBA/1 pW, based on measurements of identical
machines per Directive 2000/14/EC and amendments.
Vibration Level
This unit does not exceed a vibration level of 2.5 m/s2at
the hands based on measurements of identical machines per
ISO 5349 procedure.
This unit does not exceed vibration level of 0.5 m/s2at the
posterior based on measurements of identical machines per
ISO 2631 procedures.

7
Safety and Instruction Decals
Safety decals and instructions are easily visible to the operator and are located near any area
of potential danger. Replace any decal that is damaged or lost.
95-0831
1. 15 amp. fuse for flasher
2. 15 amp. fuse for horn 3. 15 amp. fuse for
headlights
4. 15 amp. fuse for taillights
95-0821
1. Read the operator’s manual for information on hydraulic oil.
2. View the hydraulic level oil through the sight glass.
106-0040
72-4070
72-4080
98-1487
1. Read the operator’s manual for further instructions.
2. 5 amp. fuse for controller power
3. 15 amp. fuse for supply one
4. 15 amp. fuse for supply two
95-0822
1. Warning—do not step or ride on fender.
2. Warning—do not fill the fuel tank more than 1 in. (25 mm)
below the bottom of the filler neck.

8
98-4387
1. Warning—wear hearing protection.
69-0940
1. Step on the traction pedal to operate forward or reverse.
43-8480
1. Cutting hazard of hands and fingers
76-8750
1. Cutting hazard of hands and fingers
99–4416

9
67-5360
95-0818
1. Warning—torque the blade bolt to 140–165 ft.-lb.
(190–224 N⋅m). Read the operator’s manual for further
instructions.
95-0825
1. Parking brake indictor light
2. High range speed mode indicator light
3. Cruise control indicator light
4. To lock the parking brake, step on the brake pedal while pulling
the parking brake knob out.
5. To unlock the parking brake, step on the brake pedal.
6. Read the operator’s manual for further instructions.
95-0815
1. Throttle fast
2. Throttle slow
3. Raises and lowers the
left-hand cutting unit
4. Raises and lowers the
front cutting unit
5. Raises and lowers the
right-hand cutting unit
95-0819
1. Belt routing for left-hand cutting unit
106-5976
1. Engine coolant under
pressure
2. Explosion hazard—read
the
Operator’s Manual.
3. Warning—do not touch
the hot surface.
4. Warning—read the
Operator’s Manual.

10
99-1900
1. Read the operator’s
manual for maintenance
procedures.
2. Traction reverse test port
3. Traction forward test port
4. Charge pump test port
5. Steering circuit test port
6. Deck lift test port
95-0845
1. Height-of-cut settings
95-0820
1. Belt routing for right-hand cutting unit
98-3040
1. Engine stop
2. Engine run
3. Engine start
4. Preheat
5. Engage deck drive
6. Disengage deck drive
7. High range ground speed
8. Low range ground speed
9. Push the button to
engage the cruise control.
10. Cruise control on
11. Cruise control off
12. Headlights on
13. Headlights off
14. Push the button to
over-ride an overheated
engine shutdown.
15. To start the engine, keep
your foot off of the traction
pedal, set the parking
brake, put the throttle
lever in Slow, and turn the
ignition switch.
16. To stop the engine,
disengage the deck drive,
put the throttle lever in
Slow, set the parking
brake, turn the ignition
key to Off, and remove
the key from the ignition.
17. To engage deck drive, pull
sleeve upward on switch
lever, push lever to
ENGAGE position and
release to actuate switch.
18. Fully raise cutting units
before operating in HIGH
RANGE ground speed.

11
95-0817
1. Low range height-of-cut
settings 2. High range height-of-cut settings
66-1340
106-0044
105-0739
1. Read the Operator’s
Manual.
2. Grease every 50 hours.
3. Add grease (9 grease
points).

12
Specifications
Note: Specifications and design subject to change without notice.
Traction Unit
Engine Mitsubishi, Model s4s-DT 4 cycle, four cylinder, overhead valve, 203.3 cu. in.
(3331 cc) displacement, water cooled diesel. Rated 80 HP @2750 RPM. 17:1
compression ratio, direct injected and turbo-charged. Crankcase capacity: 8.5 qt.
(8 l).
Air Cleaner Heavy duty, centrifugal air type w/replaceable element
Cooling System Radiator w/wide-spaced fins (5 per in.). Variable speed fan controlled by engine
temperature. Full flow hydraulic oil cooler (7 fins/in.). Coolant capacity 3.9 gal.
(14.7 l) of 50/50 mixture of ethylene glycol and water.
Fuel System Fuel tank capacity: 28 gal. (106 l) of No. 2 diesel fuel
Electrical 12 volt automotive type system. Dual maintenance free batteries w/1300 Amp. cold
cranking power at 0°F (18°C). 50 Amp. alternator with integral regulator.
Controls
Individual deck lift levers, High Range/Low Range ground speed selector, PTO and
ignition switches. Hand throttle, ON/OFF cruise control switch and cruise engage
button. Single implement shut-off, steering tower and wheel tilt lever and service
brake pedal. Foot operated traction pedal and steering brake pedals with parking
brake latch.
Warning Systems
Indicator lights and audible signals warn of low engine oil pressure, high water
temperature, no charge, water in fuel, low hydraulic oil level, high hydraulic oil
temperature, air cleaner clogged, and hydraulic oil filter needs service.
Indicator lights alone indicate parking brake on, cruise control is engaged, machine
is in High Range ground speed mode.
Interlock System
Prevents engine starting if traction pedal is out of neutral. Stops engine if operator
either leaves seat or parking brake on with traction pedal out of neutral. Prevents
PTO engagement if operator is out of seat, engine is off, or all cutting units are
raised. Prevents engagement of High Range ground speed mode if a cutting unit is
lowered, front cutting unit is not fully raised, or if engine is shut off.
Steering 15-1/2 in. (39 cm) patented tilt steering wheel and tower, released and locked by
single control lever. Dual hydraulic cylinder power steering for extra sharp turning.
Seat and Storage Deluxe seat w/armrests, backrest, and suspension. Adjustable fore and aft travel,
weight and height. Tool storage tray under hinged floor plate; storage and beverage
holder alongside control panel.
Brakes Enclosed, multiple front hydraulic disc brakes operated by right foot pedal.
Mechanical steering brakes via two pedals which lock together for parking brake
function. Dynamic braking through closes-loop hydrostatic drive.
Tires/Wheels Front: two 31 x 12.50-15, 8-ply high floatation turf tires w/tubes
Rear: two 23 x 10.5-12, 6-ply tubeless turf tire
Ground Speed Infinitely variable
Forward speeds: Low—0 to 7.5 MPH (12.1 km/h); High—0 to 20 MPH (32.2 km/h)
Reverse speeds: Low—0 to 3 MPH (4.8 km/h); High—0 to 8 MPH (12.9 km/h)
Ground Clearance 8 in. (20.3 cm)
Hydraulic Oil System and
Reservoir 40 gal. (151 l) total system capacity. Reservoir capacity: 32 gal. (121 l). Replaceable spin-on 5 micron filter element.

13
Traction Unit (continued)
Traction System Hydrostatic closed loop system driving gear reduction wheel drives. Has bypass
valve for towing. Adjustable foot pedal with speed stop controls forward/reverse
ground speed. Switch engaged cruise control, disengaged by service brake or
ON/OFF switch. Cruise speed changeable without disengagement.
All Cutting Units
Cutting Unit Drive System All hydraulic drive. Initial cutting drive engagement via electric switch. Drive shuts
off or engaged individually as cutting units are raised or lowered.
Automatic Weight Transfer Patented automatic weight transfer from decks to traction unit under demanding
traction situations for improved traction and deck floatation
Cutting Unit Configuration A 92 in. (234 cm) Triflex front center cutting unit and two 57 in. (145 cm) outboard
cutting units
Mowing Rate/Width Mows up to 14-1/2 acres/hr (5.9 hectares) at 7.5 MPH (12.1 km/h) using all cutting
units (assumes no overlap and stops)
Total Cutting Width 192 in. (488 cm)
Height-of-Cut Range Low: 1 to 4 in. (2.5 to 10.2 cm)
High: 2-1/2 to 5-1/2 in. (6.3 to 14 cm)
Blades Interchangeable heat treated steel blades, 20 in. (50.8 cm) long, 1/4 in. (6.3 mm)
thick and 2-1/2 in. (6.3 cm) wide. 5 blades on Triflex and 3 each on outboard units.
Anti-Scalp Devices Cutting units equipped with adjustable skids. Anti-scalp cup on each blade
assembly
Triflex Cutting Unit (Front)
Type Triflex front mounted rotary cutting unit with 5 blade spindles and 92 in. (234 cm)
width of cut
Trimming Ability Trims to either side. 8 in. (20.3 cm) cutting unit offset from outside of wheel to trim
side of front cutting unit on either side.
Height-of-Cut Adjustment 1/2 in. (12.7 mm) increments by spacers on front castor shafts and clevis pins on
rear wheel forks
Cutter Drive Hydraulic gear motor. “BB” hex section belt to center cutting unit spindles, “B”
section belt to wings. Splined shafts, each in two greaseable, tapered roller
bearings in cast iron housings (greaseable from the top). Self tensioning and
permanently lubricated belt idlers.
Castor Wheels Two 10.50 x 3.50 and two 12 x 5.00 heavy duty, pneumatic castor wheels

14
Outboard Cutting Units
Type Two, three spindle, side mounted rotary cutting units each with a 57 in. (145 cm)
width of cut
Trimming Ability Trims to either side. 58 in. (147 cm) cutting unit offset from outside of wheel to trim
side of side cutting unit on either side
Height-of-Cut Adjustment 1/2 in. (12.7 mm) increments by spacers on all castor shafts
Cutter Drive Hydraulic gear motor. Three “B” section belts to spindles
Castor Wheels Four 10.50 x 3.50 heavy duty, interchangeable, pneumatic castor wheels
Cutting Unit Suspension
Outboard cutting unit arms pivot from center, sweep cutting units forward in mow
and lift, and rotate cutting units down and back in transport. Arms have rubber
mount design for shock absorption and more cutting unit floatation (patented).
Adjustable, spring-loaded, breakaway arms release and rotate outboard cutting unit
upon accidental impact. Automatically reset when cutting unit is raised. Cam lock
links automatically secure outboard cutting units in transport position.
Dimensions
Machine Width (approx.) Transport: 7 ft. 11 in. (241 cm)
Mow: 16 ft. 3 in. (495 cm)
Machine Height (approx.) Transport: 7 ft. 7 in. (231 cm) to top of raised cutting units
Mow: 4 ft. 11 in. (152 cm) to top of seat back
Machine Overall Length
(approx.) 14 ft. (427 cm)
Total Weight (with fluids)
(approx.) 6540 lb. (2967 kg)
Optional Equipment
2–Post Roll Over Protection System
Canopy option
Canopy w/ windshield option
Cab with Roll Over Protection System
Road Light Package
8 ft (244 cm) Rotary Broom
Air Conditioning
7 Foot Snow blower
Leaf Mulcher
Cold Start Kit
Foam Filled Castor Tires
Extra Traction Drive Tire
4 Wheel Drive Assist Kit

15
Setup
Note: Determine the left and right sides of the machine from the normal operating position.
Description Qty. Use
Deck tilt link
Klik pin 1 2Securing the front cutting unit in a vertical
position for service (shipped in the tool box)
Diagnostic ACE with overlay 1Troubleshooting aid
Parts Catalog 1Ordering service parts.
Operator’s manual 2Read and understand before operating the
machine.
Operator Video 1View and understand before operating the
machine.
Registration card 1Fill out and return to Toro. (Shipped in tool box)
Checking the Batteries
1. Unlatch the hood and left hand engine side panel
(Fig. 1). Raise and prop hood open and remove the left
side panel. Make sure hood prop is secured in one of the
mounting brackets on hood.
Figure 1
1. Engine hood
2. Left side panel 3. Hood latches 4. Side panel latch
2. Remove the capscrews securing the battery tray and
slide the tray out (Fig. 2).
Battery terminals or metal tools could short
against metal tractor components, causing sparks.
Sparks can cause the battery gasses to explode,
resulting in personal injury.
•When removing or installing the battery, do not
allow the battery terminals to touch any metal
parts of the tractor.
•Do not allow metal tools to short between the
battery terminals and metal parts of the tractor.
Warning
3. Check both batteries for charge with a hydrometer. If
batteries check acceptably, slide tray back in place,
secure with capscrews and lockwashers and install side
panel. If batteries require charging, proceed to step 4.
Incorrect battery cable routing could damage the
tractor and cables, causing sparks. Sparks can
cause the battery gasses to explode, resulting in
personal injury.
•Always disconnect the negative (black) battery
cable before disconnecting the positive (red)
cable.
•Always reconnect the positive (red) battery cable
before reconnecting the negative (black) cable.
Warning
4. Remove negative (–) battery cables from batteries
(Fig. 2). Connect a 3 to 4 Amp battery charger to the
posts. Charge the batteries at a rate of 3 to 4 Amperes
for 4 to 8 hours.

16
Charging the battery produces gasses that can
explode.
Never smoke near the battery and keep sparks and
flames away from the battery.
Warning
5. When batteries are fully charged, disconnect charger
from electrical outlet and battery posts.
6. Install negative (–) cable ends, slide tray back in place,
secure with capscrews and install side panel.
Figure 2
1. Battery tray
2. Tray mounting holes
3. Negative (–) connections
4. Positive (+) connections
5. Battery tray mounting
screws
Before Operating
Note: Determine the left and right sides of the machine
from the normal operating position.
Checking the Engine Oil
The engine is shipped with 8.5 qt. (8 l) of oil in the
crankcase. However, check level of oil before and after the
engine is first started.
The engine uses any high quality detergent oil having the
American Petroleum Institute (API) “service classification”
CD. Oil viscosity recommendations are:
Ambient Temperature Proper
Viscosity
–20°to 20°F (–28.9°to –6.7°C) SAE 10
20°to 105°F (–6.7°to 40.6°C) SAE 30
105°F (40.6°C) and higher SAE 40
Note: Do not use multi-viscosity oils.
1. Be sure machine is positioned on a level surface.
2. Unlatch hood and raise and prop it open (Fig. 1). Make
sure hood prop is secured in one of the mounting
brackets on hood.
3. Remove dipstick (Fig. 3), wipe with a clean rag, and
insert into tube until fully seated. Remove dipstick from
tube and check oil level. If oil level is low, remove filler
cap (Fig. 4). Add proper type of oil until level is to top
notch on dipstick. Do not overfill.
1
Figure 3
1. Dipstick
1
Figure 4
1. Engine oil fill cap

17
Important Check oil after every 5 hours operation or
daily. Change oil and filter after the first 50 hours, then
change both every 100 hours operation thereafter. Change
oil and filter more frequently when engine is operated in
extremely dusty or dirty conditions.
4. Insert dipstick into tube and close and latch hood.
Checking the Cooling System
The cooling system is filled with a 50/50 solution of water
and permanent ethylene glycol anti-freeze. Check coolant
level at beginning of each day before starting the engine.
Capacity of cooling system is approximately 3.9 gal.
(14.7 l).
If the engine has been running, the pressurized,
hot coolant can escape and cause burns.
•Do not open the radiator cap when the engine is
running.
•Use a rag when opening the radiator cap, and
open the cap slowly to allow steam to escape.
Caution
1. Unlatch, raise and prop hood open. Make sure hood
prop is secured in one of the mounting brackets on
hood.
2. Remove radiator cap (Fig. 5). Level of coolant must be
above the radiator core and about 1 in. (25 mm) below
bottom of filler neck.
1
Figure 5
1. Radiator cap
3. If coolant level is low, add a 50/50 mixture of water and
ethylene glycol anti–freeze. Do not use
alcohol/methanol base coolants or water only. Do not
overfill.
4. Install radiator cap, close and latch the hood.
Checking the Hydraulic System
Fluid
1. Fluid level should be checked daily through sight glass
at rear of hydraulic reservoir (Fig. 6). When oil is cold,
level will be slightly below center, but should be in the
middle of the sight glass when the oil is warm.
Figure 6
1. Hydraulic oil level sight
glass 2. Reservoir fill cap
2. If oil level is low, add hydraulic oil to the reservoir
(Fig. 6); refer to Servicing the Hydraulic System,
page 41.
Filling the Fuel Tank
The engine runs on ASTM No. 2-D diesel fuel.
Danger
Under certain conditions, diesel fuel and fuel
vapors are highly flammable and explosive. A fire
or explosion from fuel can burn you and others
and can cause property damage.
•Use a funnel and fill the fuel tank outdoors, in
an open area, when the engine is off and is cold.
Wipe up any fuel that spills.
•Do not fill the fuel tank completely full. Add fuel
to the fuel tank until the level is 1 in. (25 mm)
below the bottom of the filler neck. This empty
space in the tank allows the fuel to expand.
•Never smoke when handling fuel, and stay away
from an open flame or where fuel fumes may be
ignited by a spark.
•Store fuel in a clean, safety-approved container
and keep the cap in place.
1. Remove fuel tank cap (Fig. 7).

18
2. Fill tank to about 1 in. (25 mm) below bottom of filler
neck with No. 2 diesel fuel. Install cap.
Figure 7
1. Fuel tank cap
Checking the Tire Pressure
Since the machine can be operated under many different
types of turf conditions, proper tire pressure is very
important. Use the following as a guide:
•Under Normal mowing conditions and when used on a
wide variety of turf grasses: 15 psi (103.4 kPa) front; 13
psi (89.6 kPa) rear. 50 psi (344.7 kPa) castors.
•When turf is wet and softer than normal, use low
pressure: 12 psi (82.7 kPa) front and 9 psi (62 kPa) rear.
•When turf is dry and harder than normal, use higher tire
pressure: 18 psi (124 kPa) front and rear.
Important Do not operate in HIGH RANGE for
extended periods when tire pressure is less than 18 psi
because tires may be damaged. When tire pressure exceeds
18 psi, HIGH RANGE may be used.
Checking Systems Operation
Start engine. Move the machine, slowly, to an area where
the machine can be checked for proper function. Check
operation of controls, safety interlock system, engine,
hydraulic system, brakes and cutting units; refer to
Operation, page 20, for proper procedures.
Checking Cutting Unit
Mismatch
To ensure all cutting units are at the same height-of-cut:
1. Adjust all cutting units to the highest height–of–cut.
Position all castor arm height-of-cut spacers to on the
underside of the castor arms. Do not move washers.
Leave them in their original position.
Note: Unless all castor wheel axles are not in the same
location, axles do not have to be relocated. All, however
must be in the same holes (Fig. 8).
2. Place a flat 4’x8’ sheet of 3/4 in. plywood on a level
surface and lower a cutting unit onto the plywood.
3. Taking each cutting blade in turn, position blade so it
faces fore and aft. Measure from plywood to front tip of
cutter blade and record dimension. All blade heights on
same deck should be within 1/4 in. (6.3 mm) of one
another. If blade heights meet criteria, proceed to step 5.
If blade heights are not within 1/4 in. (6.3 mm), proceed
to step 4.
4. To match cutting blade height, transfer washers from
one side of a castor wheel arm to the other. If end is to
be lowered, transfer one or both washers from the
underside to the top. By contrast, if end is to be raised,
transfer washer(s) from the top to the underside. Each
washer is 1/8 in. (3 mm) thick. Repeat measurement of
blade tip height and record new dimensions.
5. Repeat steps 2–3 on remaining cutting units, and step 4,
if necessary. If washers are transferred on a outboard
cutting unit castor arm, be sure to transfer the same
number on both ends of the castor arm.
6. Compare blade height dimensions of all cutting units.
Blade heights must be within 3/8 in. (9.5 mm) of one
another. If they are not, determine which cutting unit
height can be changed to compensate for difference and
either transfer washers from bottom to top to lower unit,
or from top to bottom to raise. Transfer an equal
number of washers at all castor wheel locations to keep
cutting unit level—two on front unit, four on outboard
units.
Adjusting the Height of Cut
The height-of-cut is adjustable from 1 to 5-1/2 in. (25 to
140 mm) in 1/2 in. (13 mm) increments. Positioning the
castor wheel axles in the top holes of the castor forks
(Fig. 8) allows Low range height-of-cut settings from 1 to
4 in. (25 to 102 mm); positioning the castor wheel axles in
the lower holes of the castor forks (Fig. 8) allows High
range height-of-cut settings from 2-1/2 to 5-1/2 in. (63.5 to
140 mm).

19
Figure 8
1. Start engine, position the machine on a level surface,
lower cutting units to a point where castor wheels can
be removed from arms, set lift levers in neutral, set
parking brake and shut engine off. Remove ignition key
to prevent accidental startup.
2. Position castor wheel axles on all cutting units in the
same hole in the castor forks.
3. On the front cutting unit, remove the hairpin cotter and
clevis pins from the rear castor pivot arms (Fig. 9).
Align the pivot arm holes with selected height–of–cut
bracket holes in the deck frames, insert clevis pins and
install the hairpin cotters (Fig. 9).
Figure 9
1. Hairpin cotter
2. Clevis pin 3. Castor axle mount holes 4. Pivot arm
4. On all remaining castor wheel assemblies, remove
lynch pin from castor fork shafts (Fig. 10). Remove
castor fork shaft and spacer assembly from the castor
arm (Fig. 10). Place spacers onto castor spindle to
desired height-of-cut setting and install castor fork shaft
in arm (Fig. 9). Install remaining spacers onto shaft and
secure assemblies with the lynch pin (Fig. 10).
Figure 10
1. Lynch pin
2. Spacers 3. Washers
Adjusting the Skids
After initial set up or if height-of-cut is changed, deck skids
should also be adjusted. Adjust skids by loosening flange
lock nuts (Fig. 11), positioning skid at specified height (see
chart) and re-tightening flange lock nuts.
Front Cutting Unit
All H.O.C.—3/8 to 1/2 in. above level surface
Outboard Cutting Units
1 in. H.O.C.—Skid positioned all the way up
1-1/2 to 3 in. H.O.C.—Skid positioned 1/2 to 1 in.
above level surface
3 in. and above H.O.C.—Skid positioned all the way
down
Figure 11
1. Skid

20
Operation
Note: Determine the left and right sides of the machine
from the normal operating position.
The use of protective equipment, such as but not limited to,
for eyes, ears, feet, and head is recommended.
This machine produces sound levels in excess of
85dBA at the operator’s ear and can cause hearing
loss through extended periods of exposure.
Wear hearing protection when operating this
machine.
Caution
12
Figure 12
1. Caution 2. Wear hearing protection
Controls
Seat
Pull seat adjusting lever (right side) (Fig. 13) outward, slide
seat fore or aft to desired position, and release lever to lock
seat in position. Seat moves 5.9 in. (15 cm) fore and aft in
19/32 in. (15 mm) increments. Knob at lower center
provides infinitely variable weight adjustment from
110–285 lb. (49.9–129.3 kg).
Figure 13
1. Seat adjusting lever
2. Weight adjusting knob 3. Weight indicator
Seat height adjusts vertically to three positions. To raise, lift
seat to first or second click stop; to lower, lift seat to
highest position, then lower to lowest position. Arm rests
pivot up and down.
Warning Light Check Switch
Before beginning operation, press the warning light switch
button (Fig. 14). All lights on control panel should light. If
a light fails to illuminate, there is an electrical malfunction
requiring immediate repair.
1
2 3
4
5
67
8
Figure 14
1. Coolant temperature
gauge
2. Fuel gauge
3. Hour meter
4. Coolant temperature
warning
5. Engine oil pressure
warning
6. No charge warning
7. Fuel system warning
8. Warning light check
switch
Engine Oil Pressure Warning
Dangerously low engine oil pressure is indicated by both a
warning indicator light (Fig. 14) and audible signal. When
this occurs, stop the engine immediately to keep possible
engine damage minimal.
No Charge Warning
No charge to the batteries is indicated by a warning
indicator light (Fig. 14) and audible signal.
Fuel System Warning
A warning indicator light (Fig. 14) and audible signal warn
of water in the fuel and need for service.