Toro 30367 User manual

Operator’s Manual
English (EN, GB)
Form No. 3356–646 Rev A
72 in Guardian Recycler Mower
62 in Guardian Recycler Mower
72 in Rear Discharge Mower
62 in Rear Discharge Mower
Groundsmaster 3320 and 3280–D
Model No. 30379—Serial No. 270000001 and Up
Model No. 30376—Serial No. 270000001 and Up
Model No. 30369—Serial No. 270000001 and Up
Model No. 30367—Serial No. 270000001 and Up

2
All Rights Reserved
Printed in the USA
W2006 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 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safe Operating Practices 3. . . . . . . . . . . . . . . . . . . .
Toro Mower Safety 5. . . . . . . . . . . . . . . . . . . . . . . .
Safety and Instruction Decals 6. . . . . . . . . . . . . . . . .
Specifications 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setup 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loose Parts 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Rear Shields 10. . . . . . . . . . . . . . . . . . .
Installing the Castor Wheel Assemblies 11. . . . . . . .
Installing the Lift Arms to the Traction Unit 11. . . . .
Connecting the Lift Arms to the Cutting Unit 12. . . .
Connecting PTO Shaft to Cutting Unit Gear Box 12.
Greasing the Machine 12. . . . . . . . . . . . . . . . . . . . . .
Before Operating 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the Lubricant in the Gear Box 13. . . . . . . .
Adjusting the Height-of-Cut 13. . . . . . . . . . . . . . . . .
Adjusting the Cutting Unit Pitch 14. . . . . . . . . . . . . .
Adjusting the Skids 15. . . . . . . . . . . . . . . . . . . . . . . .
Adjusting the Rollers 15. . . . . . . . . . . . . . . . . . . . . . .
Correcting Cutting Unit Mismatch 15. . . . . . . . . . . .
Operation 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Tips 17. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Maintenance Schedule 18. . . . . . . . .
Greasing the Bearings, Bushings and Gear Box 19. .
Separating Cutting Unit from Traction Unit 20. . . . .
Mounting the Cutting Unit to Traction Unit 21. . . . .
Servicing the Castor Arm Bushings 21. . . . . . . . . . . .
Servicing the Castor Wheels and Bearings 22. . . . . .
Checking for a Bent Blade 22. . . . . . . . . . . . . . . . . . .
Removing and Installing the Cutter Blade(s) 22. . . . .
Inspecting and Sharpening the Cutter Blade(s) 23. . .
Correcting Cutting Unit Mismatch 24. . . . . . . . . . . .
Replacing the Drive Belt 24. . . . . . . . . . . . . . . . . . . .
The Toro General Commercial Products Warranty 28. . .
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. The numbers can be
found on a plate that is mounted on the mower housing.
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 , ISO standard 5395:1990 (when appropriate
decals applied), and ANSI B71.4-2004 specifications in
effect at the time of production when equipped with
rear weight as listed in the traction unit operator’s
manual.
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

3
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 standard
B71.4-2004.
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.
•Never allow children or people unfamiliar with these
instructions to use 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 himself or herself,
other people, or 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 its task;
•lack of awareness of the effect of ground
conditions, especially slopes;
•incorrect hitching and load distribution.
Preparation
•While mowing, always wear substantial footwear, long
trousers, hard hat, safety glasses, and ear 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
refuelling.
– 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.
•Before using, always visually inspect to see that the
blades, blade bolts, and cutting assembly are not worn
or damaged. Replace worn or damaged blades and bolts
in sets to preserve balance.
•On multi-bladed machines, take care as rotating one
blade can cause other blades to rotate.
•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. Only start the engine from the
operator’s position. Use seat belts, if provided.
•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.
– Engage the clutch slowly, always keep the machine
in gear, especially when travelling downhill.

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– The machine speed 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
machine is designed for that purpose.
•Stay alert for holes in the terrain and other hidden
hazards.
•Use care when pulling loads or using heavy equipment.
– Use only approved drawbar hitch points.
– Limit loads to those you can safely control.
– Do not turn sharply. Use care when reversing.
– Use counterweight(s) or wheel weights when
suggested in the operator’s manual.
•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, stop the engine, and
disconnect the spark plug wire(s) or remove the ignition
key:
– before clearing blockages;
– before checking, cleaning, or working on the
machine;
– after striking a foreign object. Inspect the machine
for damage and make repairs before restarting and
operating the equipment;
– if the machine starts to vibrate abnormally (check
immediately).
•Disengage drive to attachments when transporting or
not is use.
•Stop the engine and disengage drive to attachment:
– before refuelling;
– before making height adjustment unless adjustment
can be made from the operator’s position.
•Reduce the throttle setting before stopping engine and,
if the engine is provided with a fuel shut-off valve, turn
the fuel off at the conclusion of mowing.
•Never raise deck with the blades running.
•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.
•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.
•The operator shall turn on flashing warning lights, if
provided, whenever traveling on a public road, except
where such use is prohibited by law.
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
and do not store near flame.
•To reduce the fire hazard, keep the engine,
silencer/muffler, battery compartment, cutting units,
drives, and fuel storage area free of grass, leaves, or
excessive grease. Clean up oil or fuel spillage.
•Replace worn or damaged parts for safety.
•If the fuel tank has to be drained, do this outdoors.
•On multi-bladed machines, take care as rotating one
blade can cause other blades to rotate.
•When machine is to be parked, stored, or left
unattended, lower the cutting units unless a positive
mechanical lock is provided.
•Disengage drives, lower the cutting units, move traction
pedal to Neutral, set parking brake, stop engine and
remove key and disconnect spark plug wire. Wait for all
movement to stop before adjusting, cleaning or
repairing.

5
•Shut off fuel while storing or transporting. Do not store
fuel near flames.
•Park machine on level ground. Never allow untrained
personnel to service machine.
•Use jack stands to support components when required.
•Carefully release pressure from components with stored
energy.
•Disconnect battery or remove spark plug wire before
making any repairs. Disconnect the negative terminal
first and the positive last. Reconnect positive first and
negative last.
•Use care when checking blades. Wrap the blades or
wear gloves, and use caution when servicing them.
Only replace blades. Never straighten or weld 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 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
standards.
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
Operation
•Before operating a machine with ROPS (roll over
protection system), be certain that the seat belts are
attached and the seat is latched to prevent the seat from
pivoting forward.
•Know how to stop the machine and 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.
•Keep hands, feet, and clothing away from moving parts
and the mower discharge area and underside of the
mower while the engine is running.
•Fill fuel tank until level is 1 in. (25 mm) below the
bottom of the filler neck. Do not overfill.
•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,
regardless if they are working properly or not.
•Check carefully for overhead clearances (i.e. branches,
doorways, electrical wires) before driving under any
objects and do not contact them.
•Do not mow in reverse unless absolutely necessary.
•Reduce speed when making sharp turns.
•If a steep slope must be ascended, back up the hill and
drive forward down the hill, keeping the machine in
gear.
•If you cannot back up a slope or if you feel uneasy on it,
do not mow it.
•Avoid starting or stopping on a slope. If tires lose
traction, disengage the blades and proceed slowly
straight down the slope. Avoid raising the side cutting
units on a slope.
•Avoid turning on slopes. If you must turn, turn slowly
and gradually downhill, if possible.
•When operating the machine on slopes, banks, or near
drop offs, always have the ROPS installed.
•When operating a machine with a ROPS, always use a
seat belt.
•Be certain that the seat belt can be released quickly if
the machine is driven or rolls into a pond or water.
•Watch for traffic when near or crossing roads. Always
yield the right-of-way.
•Do not mow near drop-offs, ditches, or embankments.
The machine could suddenly turn over if a wheel goes
over the edge of a cliff or ditch, or if an edge caves in.
•Do not mow on wet grass. Reduced traction could cause
sliding.
•Do not try to stabilize the machine by putting your foot
on the ground.
•Use extra care with other attachments. These can
change the stability of the machine.
•Turn off the blades when not mowing.

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Maintenance and Storage
•Do not touch equipment or attachment parts which may
be hot from operation. Allow to cool before attempting
to maintain, adjust, or service.
•Never store the machine or fuel container inside where
there is an open flame, such as near a water heater or
furnace.
•Keep nuts and bolts tight, especially the blade
attachment bolts. Keep equipment in good condition.
•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. If fluid is injected 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.
•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. Keep everyone away.
•Check brake operation frequently. Adjust and service as
required.
•Battery acid is poisonous and can cause burns. Avoid
contact with skin, eyes, and clothing. Protect your face,
eyes, and clothing when working with a battery.
•Battery gases can explode. Keep cigarettes, sparks, and
flames away from the battery.
•The engine must be shut off before checking the oil or
adding oil to the crankcase.
•If major repairs are ever needed or if assistance is
desired, contact an Authorized Toro Distributor.
•To make sure of optimum performance and continued
safety certification of the machine, use only genuine
Toro replacement parts and accessories. Replacement
parts and accessories made by other manufacturers
could be dangerous, and such use could void the
product warranty.
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.
106-6753
1. Thrown object
hazard—keep bystanders
a safe distance from the
machine.
2. Cutting/dismemberment
hazard of hand or foot,
mower blade—stay away
from moving parts.
93-7818
1. Danger—read the operator’s manual for blade torque
specification.
93-6697
1. Read the Operator’s
Manual.
2. Add SAE 80w–90 (API
GL-5) oil every 50 hours.

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108-1988
1. Belt routing
100-5622
1. Height of cut adjustment
108-1986
1. Height of cut
100-6578
1. Entanglement hazard, belt—do not operate the machine with
the shields or guards removed; always keep the shields and
guards in place. Stay away from moving parts.
108-5297
(Models 30376 and 30367)
1. Warning—read the Operator’s Manual.
2. Tipping hazard—lower the cutting unit when driving down
slopes. For 2 wheel drive units, add a 80 kg (170 lb) rear
weight to GM 3280D units and a 92 kg (205 lb) rear weight to
GM 3320 units. For 4 wheel drive 3280 D units, do not add
weight.
110-0625
(Models 30379 and 30369)
1. Warning—read the Operator’s Manual.
2. Tipping hazard—lower the cutting unit when driving down
slopes. For 2 wheel drive units, add a 93 kg (205 lb) rear
weight to GM 3280D units and a 109 kg (240 lb) rear weight to
GM 3320 units. For 4 wheel drive 3280 D units, add a 32 kg
(70 lb) rear weight.

8
Specifications
Specifications
Width of cut 62 in. or 72 in. width of cut, 3 blades.
Height of cut 1–5 in. (25–177 mm) adjustable in 1/2 in. (13 mm) increments. Height of cut adjust-
ment is achieved by changing spacers on castor wheels and length of height of cut rod.
Construction Housing is made of 7 gauge steel and reinforced with channels and plates.
Cutter drive
Isolation mounted gear box on cutting unit is driven by a PTO shaft. Power is
transmitted to the blades by one belt. Spindle shafts are supported by 2
greaseable, tapered roller bearings.
Blades Three 1/4 in. thick, heat-treated steel
Suspension and castor
wheels
Cutting unit has two front castors, consisting of 8 in. x 3.5 in. pneumatic wheel and
tire assembly with sealed ball bearings. Rear of cutting unit is suspended from lift
arms with adjustment links for cutting unit rake.
Anti-scalp features Anti-scalp cup located on each blade. Anti-scalp rollers. Adjustable skid on each
end of cutting unit.
Cutting unit covers Steel covers
Note: Specifications subject to change without notice.

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Setup
Note: Determine the left and right sides of the machine from the normal operating position.
Loose Parts
Note: Use this chart as a checklist to ensure that all parts necessary for assembly have been received. Without these parts,
total setup cannot be completed. Some parts may have already been assembled at the factory.
Description Qty. Use
Rubber deflector
Carriage bolt, 5/16 x 1– in.
Flange nut, 5/16
L.H. Foot shield
Carriage bolt, 5/16 x 1 in.
Flange nut, 5/16
Carriage bolt, 1/4 x 3/4 in.
Flange nut, 5/16
Capscrew, 1/4 x 3/4 in.
Flat washer
Lock nut, 1/4
R.H. Foot shield
Carriage bolt, 5/16 x 3/4 in.
Flange nut, 5/16
Rear deflector
Carriage bolt, 5/16 x 1–1/4 in.
Flange nut, 5/16
1
2
2
1
2
2
1
1
1
1
1
1
3
3
1
3
3
Mount to rear of cutting unit
(Models 30369 & 30367 only)
Castor wheel assembly 2Mount to front of cutting unit
Pivot pin assembly
Cotter pin
2
2Mount lift arms to traction unit
Lift arm R.H.
Lift arm L.H.
Thrust washer
Clevis pin
Hair pin
Height of cut collar
Clevis pin
Hair pin
Capscrew, 1/2 x 3/4 in.
Washer
1
1
4
4
2
2
2
2
2
2
Mount cutting unit to lift arms
EEC certificate 1
Parts Catalog 1
Operator’s manual 1Read before operating the machine.

10
Danger
If the engine is started and the PTO shaft is
allowed to rotate, serious injury could result.
Do not start the engine and engage the PTO lever
when the PTO shaft is not connected to the gear
box on the cutting unit.
Installing the Rear Shields
(Models 30369 and 30367 only)
1. Mount the rubber deflector to the left rear corner of the
cutting with a hold down, (2) 5/16 x 1 in. lg. carriage
bolts and flange nuts. Position the deflector as shown in
figure 1.
1
23
Figure 1
1. Rubber deflector
2. Hold down
3. 5/16 x 1” carriage bolt
2. Loosely mount the L.H. foot shield to the rubber
deflector using the fasteners and locations detailed
below. Position the fasteners as shown in figure 2.
•Front edge – (2) 5/16 x 1 in. lg. carriage bolts and
flange nuts.
•Side – (1) 1/4 x 3/4 in. lg. carriage bolt and flange
nut.
•Top – 1/4 x 3/4 in. lg. capscrew, 5/16 x 3/4 flat
washer and locknut.
•Tighten the fasteners.
1
2
3
4
Figure 2
1. L.H. foot shield
2. 5/16 x 1” carriage bolt
3. 1/4 x 3/4” carriage bolt
4. 1/4 x 3/4” capscrew
3. Loosely mount the side of the R.H. foot shield to the
right rear corner of the cutting unit with (2) 5/16 x 3/4
in. lg. carriage bolts and flange nuts. Position the shield
and the fasteners as shown in figure 3.
4. Loosely mount the top of the foot shield to the cutting
unit with a 5/16 x 3/4 in. lg. carriage bolt and flange
nut. Position the fasteners as shown in figure 3.
12
3
Figure 3
1. R.H. foot shield
2. 5/16 x 3/4” carriage bolt
3. 5/16 x 3/4” carriage bolt
5. Tighten the fasteners.

11
6. Mount the rear deflector to the rear of the cutting unit
with (3) 5/16 x 1–1/4 in. lg. carriage bolts and flange
nuts. Position the deflector as shown in figure 4.
Figure 4
1. Rear deflector
Installing the Castor Wheel
Assemblies
The thrust washers, spacers, and tensioning caps have been
installed on the castor wheel spindles for shipping.
1. Remove the tensioning caps from the spindle shafts and
slide off the spacers and thrust washers (Fig. 5).
4
2
3
5
1
Figure 5
1. Castor wheel
2. Tensioning cap
3. Spacers
4. Shims
5. Axle mounting holes
2. Slide the spacers onto the castor spindle to get the
desired height-of-cut; refer to figure 11 to determine the
combinations of spacers for the setting.. Slide a thrust
washer onto the spindle, push the castor spindle through
the castor arm. Install another thrust washer and the
remaining spacers onto the spindle and install the
tensioning cap to secure the assembly (Fig. 5).
Important The thrust washers, not the spacers, must
contact the top and bottom of the castor arm.
Installing the Lift Arms to the
Traction Unit
1. On one side of the traction unit, loosen (do not remove)
the wheel nuts securing the wheel and tire assembly to
the front wheel studs.
2. Jack up the machine until the front wheel is off of the
floor. Use jack stands or block the machine to prevent it
from accidentally falling.
3. Remove the wheel nuts and slide the wheel and tire
assembly off of the studs.
4. Mount a lift arm to the pivot bracket with a pivot pin
and cotter pin (Fig. 6). The lift arms ends are to be
positioned so the ends curve outward.
5. Mount the rear of the lift arm to the lift cylinder with a
pivot pin and (2) cotter pins (supplied with the traction
unit).
6. Hook the brake return spring to the hole in the lift arm
(Fig. 6).
1
2
34
Figure 6
1. Pivot pin
2. Lift arm
3. Pivot bracket
4. Brake return spring
7. Install the wheel and tire assembly. Torque the wheel
nuts to 45–55 ft.-lb. (61–75 N⋅m).
8. Repeat the procedure on the opposite side of the
machine.

12
Connecting the Lift Arms to the
Cutting Unit
1. Move the cutting unit into position in front of the
traction unit.
2. Move the lift lever to the Float position. Push a lift arm
down until the holes in the lift arm line up with the
holes in the castor arm bracket and the height of cut rod
can be inserted into the lift arm pads (Fig. 7).
3. Secure the lift arm to the castor arm with (2) thrust
washers, a clevis pin and a hair pin cotter. Position the
thrust washers between the lift arm and the castor arm
bracket (Fig. 7). Insert end of cotter pin into the slot in
the castor arm tab to retain cotter pin.
1
2
3
4
5
67
10
11
9
8
Figure 7
1. Lift arm
2. Castor arm bracket
3. Height of cut rod
4. Lift arm pads
5. Thrust washers
6. Clevis pin
7. Hair pin cotter
8. Height of cut collar
9. Clevis pin
10. Hair pin cotter
11. Capscrew
4. Repeat the procedure on the opposite lift arm.
5. Start the traction unit and raise the cutting unit.
6. Push down on the rear of the cutting unit and insert the
height of cut rods through the lift arm pads.
7. Install the height of cut collars onto the height of cut
rods and secure with the clevis pins and hair pin cotters
(Fig. 7). Position the head of the clevis pin toward the
front of the deck, if possible.
8. Install a 1/2 x 3/4” capscrew and a washer to top of
each height of cut rod (Fig. 7).
Connecting the PTO Shaft to
the Cutting Unit Gear Box
1. Slide the male PTO shaft into the female PTO shaft.
Align the mounting holes in the gear case input shaft
with the holes in the PTO shaft and slide them together.
1
2
4
2
Figure 8
1. PTO shaft
2. Bolts and locknuts
3. Gear case
4. Roll pin
2. Secure them with a roll pin.
3. Tighten the capscrews and nuts.
Greasing the Machine
Before the machine is operated, it must be greased to
ensure proper lubricating characteristics; refer to Greasing
the Bearings and Bushings. Failure to properly grease the
machine will result in premature failure of critical parts.

13
Before Operating
If you leave the key in the ignition switch, someone
could accidently start the engine and seriously
injure you or other bystanders.
Remove the key from the ignition before you do
any maintenance.
Caution
Checking the Lubricant in the
Gear Box
The gear box in designed to operate on SAE 80–90 wt. gear
lube. Although the gear box is shipped with lubricant from
the factory, check the level before operating the cutting
unit.
1. Position the machine and cutting unit on a level surface.
2. Remove the dipstick/fill plug from the top of the gear
box (Fig. 9) and make sure that the lubricant is between
the marks on the dipstick. If the lubricant level is low,
add enough lubricant until the level is between the
marks.
1
Figure 9
1. Dipstick/fill plug
Adjusting the Height-of-Cut
The height-of-cut is adjustable from 1 to 5 inches (25 to
127 mm) in 1/2 inch (13 mm) increments. To adjust the
height-of-cut, position the castor wheel axles in the upper
or lower holes of the castor forks, add or remove an equal
number of spacers from the castor forks and secure the
height of cut collar to the desired holes in the height of cut
rod.
1. Start the engine and raise the cutting unit off the floor
so that the height-of-cut can be changed. Stop the
engine and remove the key after the cutting unit is
raised.
2. Position the castor wheel axles in the same holes in both
castor forks. Refer to figure 11 to determine the correct
holes for the setting.
Note: When operating in 2–1/2 inch (64 mm) height of cut
or higher, the axle bolt must be installed in the lower castor
fork hole to prevent grass buildup between the wheel and
the fork. When operating in height of cuts lower than 2–1/2
inches (64 mm) and grass buildup is detected, reverse the
machines direction to pull any clippings away from the
wheel/fork area.
3. Remove the tensioning cap from the spindle shaft
(Fig. 10) and slide the spindle out of the castor arm. Put
the 2 shims (1/8 inch) onto the spindle shaft as they
were originally installed. These shims are required to
achieve a level across the entire width of the cutting
units. Slide the appropriate number of 1/2 inch spacers
onto the spindle shaft to get the desired height-of-cut;
then slide the washer onto the shaft.
Refer to figure 11 to determine the combinations of spacers
for the setting.
4
2
3
5
1
Figure 10
1. Castor wheel
2. Tensioning cap
3. Spacers
4. Shims
5. Axle mounting holes

14
Figure 11
4. Push the castor spindle through the castor arm. Install
the shims (as they were originally installed) and the
remaining spacers onto the spindle shaft. Install the
tensioning cap to secure the assembly.
5. Remove the hair pin and clevis pin securing the height
of cut collar to the height of cut rod on the rear of the
cutting unit (Fig. 12).
1
3
2
Figure 12
1. Height-of-cut rod
2. Height of cut collar
3. Clevis pin & hair pin
6. Align the height-of-cut collar to the desired
height-of-cut holes on the height of cut rod (Fig. 13).
Figure 13
7. Secure the adjustment with the clevis pin and hair pin.
Note: Position the head of the clevis pin toward the front
of the deck, if possible.
Note: When using 1 in. (25 mm), 1-1/2 in. (38 mm), or
occasionally 2 in. (51 mm) height–of–cut, move the skids
and roller to the highest holes.
Adjusting the Cutting Unit
Pitch
Measuring the Cutting Unit Pitch
Cutting unit pitch is the difference in height-of-cut from the
front of the blade plane to the back of the blade plane. Toro
recommends a blade pitch of 1/4 in. (6 mm). That is the
back of the blade plane is 1/4 in. (6 mm) higher than the
front.
1. Position the machine on a level surface on the shop
floor.
2. Set the cutting unit to the desired height-of-cut.
3. Rotate 1 blade so that it points straight forward.
4. Using a short ruler, measure from the floor to the front
tip of the blade. Rotate the blade tip to the rear and
measure from the floor to the tip of the blade.
5. Subtract the front dimension from the rear dimension to
calculate the blade pitch.
6. Loosen the jam nuts on the bottom of the height-of-cut
rods (Fig. 14).
1
2
Figure 14
1. Height-of-cut rod 2. Jam nut
7. Rotate the height-of-cut rods to raise or lower the rear
of the cutting unit and attain the correct cutting unit
pitch.
8. Tighten the jam nuts.

15
Adjusting the Skids
The skids should be mounted in the lower position when
operating in height of cuts greater than 2-1/2 inches
(64 mm) and in the higher position when operating in
height of cuts lower than 2-1/2 inches (64 mm).
Adjust the skids by removing the flange bolt and nuts,
positioning them as desired, and installing the fasteners
(Fig. 15).
1
Figure 15
1. Skid
Adjusting the Rollers
Note: If the cutting unit is to be used in the 1 or 1-1/2 in.
(25 or 38 mm) height-of-cut setting, the cutting unit rollers
must be repositioned in the top bracket holes.
To adjust the front rollers (Fig. 16)
1. Remove the screw and nut securing the roller shaft to
the deck bracket (Fig. 16).
1
2
Figure 16
1. Roller 2. Roller shaft
2. Slide the shaft out of the lower bracket holes, align the
roller with the top holes, and install the shaft.
3. Install the screw and nut to secure the assemblies.
To adjust the rear (internal) roller (Fig. 17)
(Models 30376 & 30379 only)
1. Remove the cotter pins securing the roller shafts to the
on the underside of the deck.
1
Figure 17
1. Internal roller
2. Slide the shafts out of the lower bracket holes, align the
rollers with the top holes and install the shafts.
3. Install the cotter pins to secure the assemblies.
Correcting Cutting Unit
Mismatch
Due to differences in grass conditions and the
counterbalance setting of the traction unit, it is advised that
grass be cut and appearance checked before formal cutting
is started.
1. Set the cutting unit to the desired height of cut; refer to
Adjusting the Height of Cut, page 13.
2. Check and adjust front and rear tractor tire pressure to
25–30 psi (172–207 kPa).
3. Check and adjust all castor tire pressures to 50 psi
(345 kPa).
4. Check for bent blades; refer to Checking for a Bent
Blade, page 22.
5. Cut grass in a test area to determine if all cutting units
are cutting at the same height.
6. If cutting unit adjustments are still needed, find a flat
surface using a 6 foot (2 m) or longer straight edge.
7. To ease measuring blade plane, raise the height of cut to
the highest position; refer to Adjusting the Height of
Cut.

16
8. Lower cutting unit onto the flat surface. Remove the
covers from the top of the cutting units
9. Rotate the blade on each spindle until the ends face
forward and backward.
10. Measure from the floor to the front tip of the cutting
edge.
11. Adjust 1/8 in. shims on castor fork(s) to match height of
cut to decal (Fig. 18); refer to Adjusting the Cutting
Unit Pitch.
1
2
3
4
5
Figure 18
1. Castor wheel
2. Tensioning cap
3. Spacers
4. Shims
5. Axle mounting holes

17
Operation
Note: Determine the left and right sides of the machine
from the normal operating position.
Operating Tips
Mow When Grass is Dry
Mow either in the late morning to avoid the dew, which
causes grass clumping, or in late afternoon to avoid the
damage that can be caused by direct sunlight on the
sensitive, freshly mowed grass.
Select the Proper Height-of-Cut Setting to
Suit Conditions
Remove approximately 1 in. (25 mm) or no more than 1/3
of the grass blade when cutting. In exceptionally lush and
dense grass, you may have to raise the height-of-cut to the
next setting.
Mow at Proper Intervals
Under most normal conditions you will need to mow
approximately every 4–5 days. But remember, grass grows
at different rates at different times. This means that in order
to maintain the same height-of-cut, which is a good
practice, you will need to cut more frequently in early
spring; as the grass growth rate slows in mid summer, cut
only every 8–10 days. If you are unable to mow for an
extended period due to weather conditions or other reasons,
mow first with the height-of-cut at a high level; then mow
again 2–3 days later with a lower height setting.
Always Mow with Sharp Blades
A sharp blade cuts cleanly and without tearing or shredding
the grass blades like a dull blade. Tearing and shredding
causes the grass to turn brown at the edges which impairs
growth and increases susceptibility to diseases.
After Operating
To ensure optimum performance, clean the underside of the
mower housing after each use. If residue is allowed to build
up in the mower housing, cutting performance will
decrease.
Cutting Unit Pitch
We recommend a blade pitch of 1/4 in. (6 mm). A pitch
larger than 1/4 in. (6 mm) will result in less power required,
larger clippings, and a poorer quality of cut. A pitch less
than 1/4 in. (6 mm) will result in more power required,
smaller clippings and a better quality of cut.

18
Maintenance
Recommended Maintenance Schedule
Maintenance Service
Interval Maintenance Procedure
After first 2 hours •Tighten the castor wheel nuts.
After first 10 hours
•Tighten the castor wheel nuts.
•Torque the blade bolts.
Daily
•Check the blades.
•Lubricate the castor arm bushings.1
•Lubricate the castor wheel bearings.1
Every 50 hours
•Tighten the castor wheel nuts.
•Torque the blade bolts.
•Lubricate the grease fittings.1
•Clean under the cutting unit belt covers.
•Check the blade drive belt adjustment.
•Check the gear box oil level.
Every 400 hours •Change the gear box oil.
1Immediately after every washing, regardless of the interval listed

19
If you leave the key in the ignition switch, someone
could accidentally start the engine and seriously
injure you or other bystanders.
Remove the key from the ignition switch before
you do any maintenance.
Caution
Greasing the Bearings,
Bushings and Gear Box
The machine has grease fittings that must be lubricated
regularly with No. 2 General Purpose Lithium Base Grease.
If the machine is operated under normal conditions,
lubricate all bearings and bushings after every 50 hours of
operation or immediately after every washing.
The grease fitting locations and quantities are:
•Castor fork shaft bushings (2) (Fig. 19)
•Spindle shaft bearings (3) (located under the pulley)
(Fig. 20)
•Idler arm shaft bearings (Fig. 20)
•Lift arm pivots–front (2) (Fig. 21)
•Lift arm pivots–rear (2) (Fig. 22)
Figure 19
Figure 20
Figure 21
Figure 22

20
2. Position the machine and cutting unit on a level surface
and lower the cutting unit. Remove the dipstick/fill plug
from the top of the gear box (Fig. 23) and make sure
that the lubricant is between the marks on the dipstick.
If the lubricant level is low, add SAE 80–90 wt. gear
lube until the level is between the marks.
1
Figure 23
1. Fill/check plug
Separating the Cutting Unit
from the Traction Unit
1. Position the machine on level surface, lower the cutting
unit to the floor, move the lift lever to the Float
position, shut the engine off, and engage the parking
brake.
2. Remove the capscrew and washer mounted to the top of
each height of cut rod (Fig. 24).
1
4
3
2
Figure 24
1. Height-of-cut rod
2. Capscrew & washer
3. Height of cut collar
4. Hair pin & clevis pin
3. Remove the hairpin and clevis pin securing the height
of cut collar to the height of cut rod on the rear of the
cutting unit (Fig. 24). Remove the height of cut collar.
4. Remove the hair pin cotters and clevis pins securing
the lift arms to the castor arm brackets (Fig. 25).
2
3
1
4
Figure 25
1. Lift arm
2. Clevis pin
3. Hair pin cotter
4. Castor arm bracket
5. Roll the cutting unit away from the traction unit,
separating the male and female sections of the PTO
shaft (Fig. 26).
1
1
Figure 26
1. PTO shaft
Danger
If the engine is started and the PTO shaft is
allowed to rotate, serious injury could result.
Do not start the engine and engage the PTO lever
when the PTO shaft is not connected to the gear
box on the cutting unit.