Kubota ZG332 Operator's Manual

OPERATOR'S MANUAL

READ AND SAVE THIS MANUAL

MODEL ZG332

1BDABDRAP0010

ENGLISH

ENGLISH

Abbreviations Definitions

ABBREVIATION LIST

API

PTO

RH/LH

ROPS

rpm

SAE

American Petroleum Institute
Power Take Off
Right-hand and left-hand sides are determined by facing in

the direction of forward travel
Roll-Over Protective Structures
Revolutions Per Minute
Society of Automotive Engineers

UNIVERSAL SYMBOLS

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

Safety Alert Symbol
Gasoline Fuel
Fuel-Level
Fuel-Level Warning
Parking Brake
Engine-Stop
Engine-Run
Starter Control
Power Take-Off Clutch Control-Off Position

(Disengaged)
Power Take-Off Clutch Control-On Position

(Engaged)

Hours
Cutting Height
Mower-Lowered position
Mower-Raised position
Fast
Slow
Engine Speed Control
Battery
Oil Pressure

Choke

This spark ignition system complies with Canadian ICES-002.

California Proposition 65

WARNING

The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.

IMPORTANT

The engine in this machine is not equipped by the manufacturer
with a standard spark arrester.
It is a violation of California Public Resource Code Section 4442 to
use or operate this engine on or near any forest-covered, brush­covered land, or grass- covered land unless the exhaust system is
equipped with a working spark arrester meeting state laws. Other
states or federal areas may have similar laws.

ENGLISH

FOREWORD

3

SAFETY FIRST

IMPORTANT :

NOTE : Gives helpful information.

3

DANGER :

3

WARNING :

3

CAUTION :

Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.

Indicates that equipment or property damage could result if
instructions are not followed.

You are now the proud owner of a KUBOTA ZERO TURN MOWER. This machine
is a product of KUBOTA's quality engineering and manufacturing. It is made of
excellent materials and under a rigid quality control system. It will give you long,
satisfactory service. To obtain the best use of your machine, please read this
manual carefully. It will help you become familiar with the operation of the machine
and contains many helpful hints about machine maintenance. It is KUBOTA's policy
to utilize, as quickly as possible, every advance in our research. The immediate use
of new techniques in the manufacturing of products may cause some small parts of
this manual to become outdated. KUBOTA distributors and dealers will have the
most up-to-date information. Please do not hesitate to consult them.

This symbol, the industry's "Safety Alert Symbol", is used throughout this manual
and on labels on the machine itself to warn of the possibility of personal injury.
Read these instructions carefully. It is essential that you read the instructions and
safety regulations before you attempt to assemble or use this unit.

CONTENTS

ENGLISH

SAFE OPERATION.................................................................................................1

SERVICING OF MACHINE .........................................................................................1

SPECIFICATIONS.......................................................................................................3

IMPLEMENT LIMITATIONS........................................................................................6

INSTRUMENT PANEL AND CONTROLS................................................................... 7

BALLAST..................................................................................................................... 9

REAR WEIGHT........................................................................................................9

WEIGHT INSTALLATION........................................................................................9

MOWER MOUNTING................................................................................................10

MOUNTING THE MOWER DECK......................................................................... 10

ADJUSTING THE MOWER ...................................................................................11

DISMOUNTING THE MOWER DECK...................................................................11

OPERATING THE ENGINE.......................................................................................12

MOUNT AND DISMOUNT MACHINE SAFELY..................................................... 12

STARTING THE ENGINE......................................................................................12

Throttle Lever and Choke Knob......................................................................................14

Key Switch......................................................................................................................14

CHECK DURING OPERATING.............................................................................15

Immediately Stop the Engine if:......................................................................................15

Easy Checker (TM).........................................................................................................15

Fuel Gauge.....................................................................................................................15

Coolant Temperature Gauge..........................................................................................16

Fuel Drain.......................................................................................................................16

Fuel Pump ......................................................................................................................16

Fuel Valve.......................................................................................................................17

Hour Meter......................................................................................................................17

COLD WEATHER STARTING............................................................................... 17

WARMING UP .......................................................................................................17

Warm-up and Transmission Oil in the Low Temperature Range....................................17

JUMP STARTING..................................................................................................18

STOPPING THE ENGINE...................................................................................... 19

Engine Stop (By manual)................................................................................................19

OPERATING THE MACHINE....................................................................................20

OPERATING NEW MACHINE...............................................................................20

Changing Lubricating Oil for New Machines...................................................................20

Engine Break-in..............................................................................................................20

Machine Break-in............................................................................................................20

OPERATING FOLDABLE ROPS...........................................................................21

To Fold the ROPS ..........................................................................................................21

To Raise the ROPS to Upright Position..........................................................................22

Adjustment of Foldable ROPS........................................................................................22

STARTING.............................................................................................................23

CONTENTS

ENGLISH

Operator's Seat...............................................................................................................23

Seat Belt.........................................................................................................................24

Hydraulic Lift Control Pedal............................................................................................24

Throttle Lever..................................................................................................................24

Parking Brake Pedal.......................................................................................................25

Motion Control Lever ......................................................................................................25

WORK LIGHT (OPTIONAL KIT)............................................................................28

STOPPING.............................................................................................................28

PARKING............................................................................................................... 28

TRANSPORTING...................................................................................................29

OPERATING THE MOWER......................................................................................30

MAKING THE MOST OF YOUR MOWER.............................................................30

ADJUSTING CUTTING HEIGHT...........................................................................30

OPERATING MOWER...........................................................................................33

PTO Lever ......................................................................................................................33

Starting ...........................................................................................................................33

TIRES AND WHEELS ...............................................................................................34

TIRES.....................................................................................................................34

Inflation Pressure............................................................................................................34

WHEELS................................................................................................................ 34

Remove and Install Front Caster Wheels.......................................................................35

MAINTENANCE.........................................................................................................36

SERVICE INTERVALS ..........................................................................................36

PERIODIC SERVICE CHART LABEL ...................................................................38

LUBRICANTS AND FUEL......................................................................................39

PERIODIC SERVICE.................................................................................................41

HOW TO OPEN THE HOOD AND STEP.............................................................. 41

Hood...............................................................................................................................41

Step ................................................................................................................................41

HOW TO RAISE THE OPERATOR'S SEAT.......................................................... 42

HOW TO OPEN THE LEVER GUIDE.................................................................... 43

LIFT-UP POINT......................................................................................................43

Front side:.......................................................................................................................43

Rear side: .......................................................................................................................43

DAILY CHECK.......................................................................................................44

Checking Engine Oil Level..............................................................................................45

Checking Amount of Fuel and Refueling........................................................................45

Checking and Cleaning Radiator Screen and Bonnet Screen to Prevent Overheating..46

Checking Tire Pressure............................................................................... ........... ........47

Inflation Pressure............................................................................................................47

Checking Transmission Fluid Level................................................................................48

Checking Coolant Level..................................................................................................48

Lubricating All Grease Fittings........................................................................................49

Checking Movable Parts.................................................................................................49

EVERY 50 HOURS................................................................................................ 50

Safety Devices................................................................................................................50

Checking Gear Box Oil Level..........................................................................................51

Greasing.........................................................................................................................52

Oiling...............................................................................................................................54

CONTENTS

ENGLISH

EVERY 100 HOURS.............................................................................................. 55

Changing Engine Oil.......................................................................................................55

Checking Spark Plug Condition & Gap...........................................................................55

Cleaning Air Cleaner Primary Element...........................................................................56

Checking Fuel Lines.......................................................................................................57

Adjusting Fan Drive Belt Tension ...................................................................................59

Adjusting Parking Brake .................................................................................................60

Battery Condition............................................................................................................61

Adjusting Throttle Cable .................................................................................................62

Checking Carbon Canister Air Filter...............................................................................63

EVERY 150 HOURS.............................................................................................. 64

Changing Gear Box Oil...................................................................................................64

EVERY 200 HOURS.............................................................................................. 65

Replacing Engine Oil Filter.............................................................................................65

Checking Radiator Hose and Clamp..............................................................................65

Checking Hydraulic Hose ...............................................................................................66

Replacing Transmission Oil Filter [HST].........................................................................67

Adjusting the Motion Control Lever Pivot........................................................................67

Checking Intake Air Line.................................................................................................68

EVERY 400 HOURS.............................................................................................. 68

Changing Transmission Fluid and Rear Axle Gear Case Oil (RH and LH)....................68

Replacing Hydraulic Oil Filter .........................................................................................69

Replacing Fuel Filter.......................................................................................................70

EVERY 500 HOURS.............................................................................................. 70

Adjusting Engine Valve Clearance.................................................................................70

EVERY AFTER 1000 HOURS...............................................................................70

Cleaning Combustion Chamber......................................................................................70

EVERY 1 YEAR.....................................................................................................70

Replacing Air Cleaner Primary Element and Secondary Element..................................70

Flushing Cooling System and Changing Coolant...........................................................71

Anti-freeze ......................................................................................................................72

EVERY 2 YEARS...................................................................................................73

Replacing Hydraulic Hose ..............................................................................................73

Replacing Fuel Lines......................................................................................................73

Replacing Radiator Hose................................................................................................73

Replacing Mower Gear Box Oil-Seal..............................................................................73

Replacing Intake Air Line................................................................................................73

Replacing Carbon Canister Air Filter..............................................................................73

Replacing One Way Valve..............................................................................................73

Replacing Engine Breather Hose...................................................................................73

SERVICE AS REQUIRED......................................................................................73

Replacing Fuses.............................................................................................................73

Checking and Replacing Blade.......................................................................................74

Mower Belt Replacement................................................................................................76

Bleeding Fuel System.....................................................................................................76

ADJUSTMENT...........................................................................................................77

MOTION CONTROL LEVER .................................................................................77

HST NEUTRAL...............................................................................................................77

MOTION CONTROL LEVER NEUTRAL POSITION......................................................78

MAXIMUM SPEED (FORWARD)...................................................................................78

MOTION CONTROL LEVER ALIGNMENT....................................................................78

CONTENTS

ENGLISH

MOWER DECK LEVEL..........................................................................................79

ANTI-SCALP ROLLERS.................................................................................................79

LEVEL MOWER DECK (Side-to-Side)...........................................................................80

LEVEL MOWER DECK (Front-to-Rear) .........................................................................81

GENERAL TORQUE SPECIFICATION................................................................. 83

TIGHTENING TORQUE CHART...........................................................................84

STORAGE.................................................................................................................85

MACHINE STORAGE............................................................................................ 85

REMOVING THE MACHINE FROM STORAGE.................................................... 85

TROUBLESHOOTING...............................................................................................86

ENGINE TROUBLESHOOTING............................................................................86

BATTERY TROUBLESHOOTING .........................................................................88

MACHINE TROUBLESHOOTING .........................................................................89

MOWER TROUBLESHOOTING............................................................................89

ENGINE EMISSION RELATED INFORMATION....................................................... 91

1SAFE OPERATION

ENGLISH

SAFE OPERATION

Careful operation is your best insurance against an
accident. Read and understand this manual carefully
before operating the machine. All operators, no matter
how much experience they may have had, should read
this and other related manuals before operating the
machine or any implement attached to it. It is the owner's
obligation to instruct all operators in safe operation.
This mowing machine is capable of amputating hands and
feet and throwing objects. Failure to observe the following
safety instructions could result in serious injury or death.

1. The ZERO TURN MOWING MACHINE has different
steering characteristics than other machines with a
steering wheel and does not have a service brake
pedal (but, has a parking brake lock pedal that can be
used to stop the machine in an emergency. Normal
slowing down and stopping is done with the motion
control levers.). Read and understand the operators
manual before operating the machine. Practice
operating machine at low engine speed without mower
engaged in an unobstructed area.

2. Know your equipment and its limitations. Read all
instructions in this manual before attempting to start
and operate the machine.

3. Pay special attention to the danger, warning and
caution labels on the machine itself.

4. KUBOTA recommends the use of a Roll Over
Protective Structures (ROPS) and seat belt in almost
all applications. This combination will reduce the risk
of serious injury or death, should the machine be
upset.
The machine is equipped with a Foldable ROPS,
which may be temporarily folded down only when
absolutely necessary for areas with height constraints.
(There is no operator protection provided by the ROPS
in the folded position. For operator safety the ROPS
should be placed in the upright and locked position
and the seat belt fastened for all other operations.)
If the ROPS is loosened or removed for any reason,
make sure that all parts are reinstalled correctly before
operating the machine.
Never modify or repair a ROPS because welding,
bending, drilling, grinding, or cutting may weaken the
structure.
A damaged ROPS structure must be replaced, not
repaired or revised.
If any structural member of the ROPS is damaged,
replace the entire structure at your local KUBOTA
Dealer.

5. Always use the seat belt when the ROPS is upright. Do
not use the seat belt if the ROPS is down or if there is
no ROPS. Check the seat belt regularly and replace if
frayed or damaged.

6. Do not allow any bystanders around or near machine
during operation.

7. Do not allow passengers, children or non-qualified
operators on the machine at any time. The operator
must remain in the machine seat throughout
operation.

8. Do not operate the machine or any attachments while
under the influence of alcohol, medication, controlled
substances or when fatigued.

9. Do not wear loose, torn, or bulky clothing around
machine. The clothing may catch on moving parts or
controls, leading to the risk of accident. Wear and use
any additional safety items such as hard hat, safety
boots or shoes, eye and hearing protection, gloves,
etc. as appropriate or required.

10.Do not wear radio or music headphones while
operating the machine.
Safe operation requires your full attention.

11. Carefully check the vicinity before operating machine
or any implement attached to it. Clear the work area of
objects (wires, rocks, etc.) that might be picked up and
thrown. Check for overhead clearance which may
interfere with a grass catcher.

12. Check brakes and other mechanical parts for correct
adjustment and wear. Replace worn or damaged parts
promptly. Check the tightness of all nuts and bolts
regularly. (For further details, see "PERIODIC
SERVICE" and "ADJUSTMENT" section.)

13.Keep all shields and guards in place. Replace any that
are damaged or missing.

1. BEFORE OPERATING

(1) ROPS
(2) Seat belt

SAFE OPERATION2

ENGLISH

14.Before allowing other people to use your machine,
explain how to operate and have them read this
manual before operation.

15.In addition to the design and configuration of
equipment, hazard control and accident prevention
are dependent upon the awareness, concern and
prudence of personnel involved in the operation,
transport and maintenance of the equipment.

16.Keep the machine and attachments in good operating
condition and keep safety devices in place and in
proper working condition.

17.Do not modify the machine. Unauthorized modification
may affect the function of the machine, which may
result in personal injury.

18.Use only implements approved by KUBOTA. Use
proper ballast to front or rear of machine to reduce the
risk of upsets. Follow the "Safe Operation"
procedures, specified in the manuals with equipment.

19.Keep your machine clean. Accumulations of dirt,
grease, and trash can contribute to fires and lead to
personal injury.

20.The exhaust gas from the muffler is very hot. To
prevent fire, do not expose dry grass, mowed grass, oil
and any other combustible materials to exhaust gas.
Use a spark arrester where required. Also keep the
engine and muffler clean all the time.

C Starting

1. Always sit in the operator's seat when starting engine
or operating levers or controls.

2. Before starting the engine make sure that the motion
control levers are in neutral lock, the parking brake is
applied, and Power Take Off (PTO) is disengaged
(OFF).

3. Do not start engine by shorting across starter
terminals. The machine may start in gear and move if
normal starting circuitry is bypassed.

4. Do not operate or idle engine in a non-ventilated area.
Carbon monoxide gas is colorless, odorless, and
deadly.

5. Do not start engine while tilting deck.

6. Check before each use that operator presence
controls are functioning correctly. Test safety systems.
(See "Safety Devices" in "EVERY 50 HOURS" in
"PERIODIC SERVICE" section.)
Do not operate unless they are functioning correctly.

C Working

1. Do not turn sharply when driving at high speed.

2. To avoid tip over, slow down when turning on uneven
terrain or before stopping.

3. Do not operate near ditches, holes, embankments, or
other terrain, which may collapse under the machine
weight. The risk of machine tip over increases when
the ground is loose or wet.

4. Park the machine on a firm and level surface.

5. Watch where you are going at all times. Watch for and
avoid obstacles. Be alert at curbs, near trees, and
other obstructions and hidden hazards.

6. Know what is behind you before backing up. Look to
the rear before and when backing. Do not mow while
in reverse unless absolutely necessary and make sure
the area immediately behind you is clear of
obstructions or holes and small children. Use extra
caution when machine is equipped with Grass
Catcher. Your view to the rear is restricted.

7. When working in groups, always let others know what
you are doing ahead of time.

8. Do not drive machine on streets or highways. Watch
for traffic when you cross roads or operate near roads.

9. Be aware of the mower discharge direction and do not
point it at anyone.

10. When using any attachments, never direct discharge
material toward bystanders. Do not allow anyone near
the attachments while in operation.
Do not mow when bystanders are present in the
mowing area.

11.To reduce fire hazards, keep the engine exhaust area
free of grass or leaves.

12. Be sure rotating blades and engine are stopped and
the key is removed before placing hands or feet near
blades and cleaning blockages or unclogging chute.

13. Shut the engine off and wait for all movement to stop
before removing grass catcher or unclogging chute.

14.Watch the temperature gauge and maintain all
screens to avoid overheating conditions.

15.Always inspect the mower for damage after striking a
foreign object. Repair or replace any damaged parts
before restarting.

16.Operate during daylight or in bright artificial light.

C Children

Tragic accidents can occur if the operator is not alert to
the presence of children. Children are attracted to the
machine and mowing activity.
Never assume that children will remain where you last
saw them.

1. Keep children out of the mowing area and under the
watchful care of another responsible adult.

2. Be alert and turn machine off if children enter the area.

3. Before and when backing, look behind and down for
small children.

4. Never carry children. There is no safe place for them
to ride. They may fall off and be seriously injured or
interfere with safe machine operation.

5. Never allow children to operate the machine, even
under adult supervision.

6. Use extra care when approaching blind corners,
shrubs, trees, or other obstructions that might hide
children from sight.

7. Do not mow in reverse unless it is absolutely
necessary and make sure area to the rear is clear of
children before doing so.

2. OPERATING

3SAFE OPERATION

ENGLISH

C Operators, age 60 years and above

Data indicates that operators, age 60 years and above,
are involved in a large percentage of machine-related
injuries. These operators should evaluate their ability to
operate the machine safely enough to protect themselves
and others from serious injury.

C Operation on slopes

Slopes are major factor related to loss-of-control and tip­over accidents, which can result in severe injury or death.
All slopes require extra caution.
If you cannot back up the slope or if you feel uneasy on it,
do not mow it.
If the engine stops when operating on a slope apply the
parking brake immediately to prevent machine run away.

DO

1. To avoid tip over, operate across the slopes not up and
down. Stay off hills and slopes too steep for safe
operation.

2. Remove obstacles such as rocks, tree limbs, etc.

3. Stay alert for holes in the terrain and other hidden
hazards. Keep away from drop-offs. Uneven terrain
could overturn the machine. Tall grass can hide
obstacles.

4. Follow the manufacturer's recommendations for wheel
weight or counterweights to improve stability.

5. Keep all movement on the slopes slow and gradual.
Do not make sudden changes in speed or direction.

6. Avoid starting or stopping on a slope. If tires lose
traction, disengage PTO and proceed slowly straight
down the slope.

7. Reduce speed and exercise extreme caution on
slopes and in sharp turns to prevent tip-over or loss of
control.

8. Use special caution when changing direction on
slopes. Slow down, and use extra caution when
changing direction on a slope.

DO NOT

1. Do not turn on slopes unless necessary. If necessary,
turn uphill slowly and gradually.

2. Do not mow near drop-offs, ditches, or embankments.
The mower could suddenly turn over if a wheel is over
the edge of cliff or ditch, or if an edge caves in.

3. Do not mow on wet grass. Reduced traction could
cause sliding and loss of control.

4. Do not try to stabilize the machine by putting your foot
on the ground.

5. Do not use grass catcher on steep slopes.

6. Do not start or stop suddenly when going uphill or
downhill. Avoid sudden start and stops on slopes.

7. Never "freewheel". Do not let the machine travel
downhill with motion control levers at neutral lock
position or in neutral.

8. Do not operate machine without the mower deck
installed.

C Stopping

1. Park the machine on level ground.

2. Make sure that the machine and all attachments have
come to a complete stop before dismounting.

3. Before dismounting, apply parking brake, place the
motion control levers in their neutral lock positions,
disengage the PTO, lower all attachments to the
ground, turn off the engine, and remove the key.

4. Do not park the machine on dry grass or leaves.

1. Before installing or using PTO-driven equipment, read
the manufacturer's manual and review the safety
labels attached to the equipment.

2. Wait until all moving components have completely
stopped before connecting, disconnecting, adjusting,
cleaning, or servicing any PTO-driven equipment.

3. Use the PTO with KUBOTA approved attachments.

The speed of PTO:
ZG332 2400 rpm at 3200 engine rpm

1. Use lift link only with authorized attachments designed
for lift link usage.

1. Disengage power to attachment(s) when transporting
or not in use.

2. Do not tow this machine. Use a suitable truck or trailer
when transporting on public roads.

3. Use extra care when loading or unloading the machine
into a trailer or truck.

4. This machine is not allowed to be used on public
roads.

3. USING THE PTO

4. USING THE LIFT LINK

5. TRANSPORTING

SAFE OPERATION4

ENGLISH

C Servicing

1. Before servicing, park the machine on a firm, level
surface and apply the parking brake. Remove the key
to prevent accidental start-up.

2. Allow the machine time to cool before touching the
engine, muffler, radiator, etc.

3. Always stop the engine before refueling. Avoid spills
and overfilling. Wipe up spilled fuel immediately.

4. Use extra care in handling gasoline fuels. They are
flammable.
(1) Use only an approved container.
(2) Do not remove fuel cap or refuel with the engine

running. Allow engine to cool before refueling. Do
not smoke while refueling or when standing near
fuel.

(3) Do not refuel the machine indoors and always

clean up spilled fuel or oil.

(4) Do not store the machine or fuel container inside

where there is an open flame, such as in a water
heater.

5. Do not smoke when working around battery or when
refueling. Keep all sparks and flames away from
battery and fuel tank.
A battery, especially when charging, will give off
hydrogen and oxygen gases, which can explode and
cause serious personal injury.

6. Before "jump starting" a dead battery, read and follow
all the instructions.

7. Disconnect the battery's ground cable before working
on or near electric components.

8. Do not use or charge the refillable type battery if the
fluid level is below the LOWER (lower limit level) mark.
Otherwise, the battery component parts may
prematurely deteriorate, which may shorten the
battery's service life or cause an explosion. Check the
fluid level regularly and add distilled water as required
so that the fluid level is between the UPPER and
LOWER levels.

9. Keep first aid kit and fire extinguisher handy at all
times.

10. Do not remove the radiator cap while coolant is hot.
When cool, slowly rotate cap to the first stop and allow
sufficient time for excess pressure to escape before
removing the cap completely. If the machine has a
coolant recovery tank, add coolant there instead of the
radiator.

11.Do not attempt to mount a tire on a rim unless qualified
to do so and all proper safety precautions are followed.

12.Always maintain the correct tire inflation pressure. Do
not inflate tires above the recommended pressure
shown in the Operator's Manual.

13.Provide adequate support when changing wheels.

14.Make sure that wheel nuts and bolts have been
tightened to the specified torque.

15.Escaping hydraulic fluid under pressure has sufficient
force to penetrate the skin causing serious personal
injury. Before disconnecting lines, be sure to relieve all
pressure. Before applying pressure to the system,
make sure all connections are tight and that lines,
pipes, and hoses are not damaged.

6. SERVICING AND STORAGE

(1) Fuel tank cap

5SAFE OPERATION

ENGLISH

16. Fluid escaping from pinholes may be invisible. Use a
piece of cardboard or wood to search for suspected
leaks: do not use hands. Use safety goggles or other
eye protection.
If injured by escaping fluid, see a medical doctor at
once. Serious infection or reaction will result if proper
medical treatment is not administered immediately.
This fluid can produce gangrene or severe allergic
reaction.

17. Do not make adjustments or repairs with the engine
running.

18. Keep machine free of grass, leaves, or other debris
build-up.

19.Do not change the engine governor setting or
overspeed the engine.

20.Do not run a machine inside a closed area.

21.Mower blades are sharp and can cut your hands. Wrap
the blade(s) or wear gloves, and use extra caution
when servicing them.

22.Keep nuts and bolts, especially blade attachment
bolts, tight and keep equipment in good condition.

23.Never tamper with safety devices. Check their
operation for proper function regularly.

24.Waste products such as used oil, fuel, coolant, brake
fluid, and batteries, can harm the environment, people,
pets and wildlife. Please dispose of properly.

25. Do not use beverage containers for waste fluids or
other products. Someone, particularly children, may
drink them by mistake.

26. Securely support machine or any machine elements
with stands or suitable blocking before working
underneath. For your safety do not rely on
hydraulically supported devices, they may leak down,
suddenly drop or be accidently lowered.

27.See your local Recycling Center or KUBOTA Dealer to
learn how to recycle or get rid of waste products.

A A Material Safety Data Sheet (MSDS) provides

specific details on chemical products; physical and
health hazards, safety procedures, and emergency
response techniques. The seller of the chemical
products used with your machine is responsible for
providing the MSDS for that product upon request.

C Storage

1. Keep the machine and supply of fuel in locked storage
and remove the ignition key to prevent children or
others from playing or tampering with them.

2. To avoid sparks from an accidental short circuit,
always disconnect the battery's ground cable (-) first
and reconnect it last.

3. To avoid the danger of exhaust fume poisoning, do not
operate the engine in a closed building without
adequate ventilation.

4. To reduce fire hazards, clean the machine thoroughly
before storage. Dry grass and leaves around the
engine and muffler may ignite.

(1) Cardboard
(2) Hydraulic line
(3) Magnifying glass

(1) Battery
(2) Ground cable

(+): Positive terminal
(-): Negative terminal

SAFE OPERATION6

ENGLISH

7. DANGER, WARNING AND CAUTION LABELS

7SAFE OPERATION

ENGLISH

SAFE OPERATION8

ENGLISH

9SAFE OPERATION

ENGLISH

1. Keep danger, warning and caution labels clean and free from obstructing material.

2. Clean danger, warning and caution labels with soap and water, and dry with a soft cloth.

3. Replace damaged or missing danger, warning and caution labels with new labels from your local KUBOTA Dealer.

4. If a component with danger, warning and caution label(s) affixed is replaced with new part, make sure new label(s) is
(are) attached in the same location(s) as the replaced component.

5. Mount new danger, warning and caution labels by applying on a clean dry surface and pressing any bubbles to outside
edge.

8. CARE OF DANGER, WARNING, AND CAUTION LABELS

1SERVICING OF MACHINE

ENGLISH

SERVICING OF MACHINE

After reading this manual thoroughly, you will find that you
can do some of the regular maintenance yourself. Your
dealer is interested in helping you get the best
performance from your new machine and wants to help
you get the most value from it. When in need of parts or
major service, be sure to see your KUBOTA Dealer. When
in need of parts, be prepared to give your dealer the
machine, engine and mower serial numbers.

Locate the serial numbers now and record them in the
space provided.

Type Serial No.
Machine
Engine
Mower
Date of Purchase
Name of Dealer
(To be filled in by purchaser)

(1) Machine identification plate
(2) Machine serial No.

(1) Engine serial No.

(1) Mower identification plate
(2) Mower serial No.

(1) Mower identification plate
(2) Mower serial No.

SERVICING OF MACHINE2

ENGLISH

(1) ROPS serial No.

3SPECIFICATIONS

ENGLISH

SPECIFICATIONS

Model ZG332P ZG332LP

Engine

Model WG972-G-E3-ZG-1
Max. engine power (Gross) kW (HP) 24.2 (32.5) (*1)
Type Liquid-cooled gasoline engine
Number of cylinders 3

Bore and stroke mm (in.)

74.5 x 73.6

(2.93 x 2.90)
Total displacement cm (cu. in.) 962 (58.7)
Fuel Automobile unleaded or regular ga soline
Starter Electric starter with battery
Lubrication Forced lubrication by gear pump
Cooling Liquid with pressurized radiator
Battery 51R (12 V, RC: 70 min, CCA: 475A)

Capacities

Fuel tank L (U.S.gals.) 49 (12.9)
Engine crankcase

(with filter)

L (U.S.qts.) 3.5 (3.7)

Engine coolant L (U.S.qts.) 2.7 (2.85)
Recovery tank L (U.S.qts.) 0.25 (0.26)
Transmission case including

Rear axle gear case

L (U.S.qts.) 12.1 (12.8) (*3)

Dimensions

Overall length mm (in.) 2329 (91.7) 2414 (95.0)
Overall width

w/o mower deck

mm (in.) 1460 (57.5)

Overall
height

With ROPS upright mm (in.) 1915 (75.4)
With ROPS folded mm (in.) 1645 (64.8)

Wheelbase mm (in.) 1410 (55.5) 1495 (58.8)

Min. ground clearance mm (in.)

130 (5.12)

W/60", W/72"

Tread

Front mm (in.) 975 (38.4) 1070 (42.1)
Rear mm (in.) 1150 (45.3)

Weight
(W/MOWER DECK)

kg (lbs.) 749 (1651) with 60" 800 (1763) with 72"

Traveling
system

Tires

Front 15 x 6.0 - 6 (Semi-pneumatic Non Flat Tire) Rib
Rear 26 x 12.0 - 12 (4PR) Turf

Traveling
speeds *2

Forward mph (km/h) 0 to 10.6 (0 to 17.0) (*2)

Reverse mph (km/h) 0 to 5.3 (0 to 8.5) (*2)
Steering 2 - Hand levers
Transmission 2 - HST w / Gear
Parking brake Wet multi disk / Foot applied, released
Min. turning radius mm (in.) 0 (0)

4 SPECIFICATIONS

ENGLISH

PTO

Revolution

1 speed

(2400 rpm at 3200 engine rpm)
Drive system Shaft drive, KUBOTA 10 tooth involute spline
Clutch type Wet multi disks
PTO brake Wet single disk

(Specifications and design subject to change without notice)
NOTE:

*1: Manufacturer's estimate
*2: At 3200 engine rpm
*3: Oil amount when the oil level is at the upper level.

Model ZG332P ZG332LP

5SPECIFICATIONS

ENGLISH

*1: Engine Max rpm

Model RCK60P-327Z RCK72P-332Z

PRO Commercial Deck
(Fabricated deck)

Suitable machine ZG332P ZG332LP
Mounting method Quick joint, Parallel linkage
Adjustment of cutting height Dial gauge
Cutting width mm (in.) 1524 (60.0) 1829 (72.0)
Cutting height mm (in.) 25 to 127 (1.0 to 5.0)
Weight (Approx.) kg (lbs.) 143 (315) 165 (364)
Blade spindle speed r/s (rpm) 56.0 (3360) *1 47.2 (2830) *1
Blade tip velocity m/s (fpm) 92.0 (18100) *1 92.6 (18200) *1
Blade length mm (in.) 523 (20.6) 625 (24.6)
Number of blades 3

Dimensions

Total length mm (in.) 1002 (39.4) 1170 (46.1)

Total width mm (in.) 1911 (75.2) 2224 (87.6)

Total height mm (in.) 358 (14.1)

6 IMPLEMENT LIMITATIONS

ENGLISH

IMPLEMENT LIMITATIONS

The KUBOTA Machine has been thoroughly tested for proper performance with implements sold or approved by KUBOTA.
Use with implements which are not sold or approved by KUBOTA and which exceed the maximum specifications listed
below, or which are otherwise unfit for use with the KUBOTA Machine may result in malfunctions or failures of the machine,
damage to other property and injury to the operator or others. [Any malfunctions or failures of the machine resulting from
use with improper implements are not covered by the warranty.]

Maximum loading weight

Implement weight W Maximum total weight

Front axle Wf Rear axle Wr

ZG332P, ZG332LP 250 kg (551 lbs.) 870 kg (1918 lbs.) 315 kg (694 lbs.) 1120 kg (2469 lbs.)

7INSTRUMENT PANEL AND CONTROLS

ENGLISH

INSTRUMENT PANEL AND CONTROLS

ILLUSTRATED CONTENTS ILLUSTRATED CONTENTS

(1) Parking brake pedal............................. 12, 25 (10) Coolant temperature gauge.................. 16

(2) Parking brake lock pedal...................... 12, 25 (11) Fuel gauge (LH tank only)..................... 15

(3) Motion control lever.............................. 12, 25 (12) Key switch............................................ 14

(4) Cup holder............................................ - (13) Easy checker (TM)............................... 15

(5) Seat belt............................................... 24 (14) Cutting height control dial..................... 30

(6) Operator's seat..................................... 23 (15) Choke knob.......................................... 14

(7) ROPS................................................... 21 (16) PTO lever............................................. 33

(8) Hydraulic lift control pedal (DOWN)...... 24 (17) Throttle lever........................................ 24

(9) Hydraulic lift control pedal (UP)............ 24 (18) Hour meter........................................... 17

INSTRUMENT PANEL AND CONTROLS8

ENGLISH

ILLUSTRATED CONTENTS

(1) Anti-scalp roller (Front, pin shift type)...... 30

(2) Anti-scalp roller (Rear, bolt shift type)...... 30

ILLUSTRATED CONTENTS

(1) Anti-scalp roller (Front, swivel type).......... 30

(2) Anti-scalp roller (Rear, bolt shift type)........ 30

9BALLAST

ENGLISH

BALLAST

REAR WEIGHT

To avoid serious injury or death:
A Ballast is required for operating this machine.

Wrong weight combination will cause machine
instability. Add required weight to maintain
stability and avoid tipover. See requirements
listed on the weight combination chart.

A If weight is disassembled for servicing or

installing options, make sure that the required
weight must be assembled again before using
the machine.

Requirement weight combination chart

Rear frame weight must be installed as shown in the
figure below when utilizing each combination. (See
requirement weight combination chart.)

WEIGHT INSTALLATION

To avoid personal injury:

A Park the machine on a firm and level surface.
A Apply the parking brake.
A Stop the engine and remove the key.

1. Before operating the machine, raise the lift links to the
full raised position.

2. Adjust the cutting height control dial to lowest position.
Set the mower deck to the lowest position.

A Make sure that the number of weights is matched to

the model name.

3. Install the required weight (1) to the bracket (A) of
frame with M10 nuts (2), spring washers (3) and plain
washers (4). (See "TIGHTENING TORQUE CHART"
in "ADJUSTMENT" section.)

Machine Model Weight quantity
ZG332P 0
ZG332LP 2

(1) Weight

(1) Weight
(2) M10 nut
(3) Spring washer
(4) Plain washer

(A) Bracket of frame
(B) Stud bolt

10 MOWER MOUNTING

ENGLISH

MOWER MOUNTING

MOUNTING THE MOWER DECK

To avoid personal injury:

A Park the machine on a firm and level surface.
A Apply the parking brake.
A Stop the engine and remove the key.

1. Before mounting the mower deck, raise the lift links to
the full up position.

2. Adjust the cutting height control dial to 1 in. position.

3. Go backward so that right and left rear tires would be
on the board 40 mm (1.57 in.) high.

A Use a board more than 300 mm (11.8 in.) wide and

1400 mm (55.1 in.) long.

A Make sure that right and left rear tires are firm on the

board.

4. Change the direction of the front tires as shown in the
figure.

5. Place the mower deck at the right side of the machine.

6. Slide the mower deck under the machine, and make
sure that the mower gear case is placed properly in the
center of the machine.

A For easy installation set the anti scalp roller as shown

below.

RCK60P: Two places front (Rear, bolt shift type)

H: 40 mm (1.57 in.) W: 300 mm (11.8 in.)

H: 40 mm (1.57 in.)
L: 1400 mm (55.1 in.)

W: 300 mm (11.8 in.)

(1) Anti scalp roller (pin shift type)
(2) Anti scalp roller (bolt shift type)

11MOWER MOUNTING

ENGLISH

RCK72P: No places*

*No roller that should turn in the direction

7. Depress the hydraulic lift control pedal (DOWN) and
pull down the lift links.

8. Attach the lift links to the mower deck with attaching
hardwares.

9. Install universal joint.
Pull back the coupler of the universal joint.
Push the universal joint onto the PTO shaft until the
coupler locks.

A Tug the universal joint backward and forward to make

sure it is locked securely.

10. After mounting the mower, check the mower level. If
necessary, adjust the mower level and anti-scalp
rollers.

ADJUSTING THE MOWER

See "OPERATING THE MOWER" section.

DISMOUNTING THE MOWER DECK

For dismounting the mower deck, reverse the above
procedures.

(1) Anti scalp roller (Front, swivel type)
(2) Anti scalp roller (Rear, bolt shift type)

(1) Lift link
(2) Clevis pin, Plain washer, Snap ring

(1) Universal joint
(2) Coupler

(A) "PULL"

12 OPERATING THE ENGINE

ENGLISH

OPERATING THE ENGINE

To avoid personal injury:
A Read "SAFE OPERATION" in the front of this

manual.

A Read the danger, warning and caution labels

located on the machine.

A To avoid danger of exhaust fume poisoning, do

not operate the engine in a closed building
without proper ventilation.

A Never start the engine while standing on the

ground. Start the engine only from operator's
seat.

MOUNT AND DISMOUNT MACHINE
SAFELY

DO NOT step on either side of the mower deck when
mounting and dismounting the machine. When mounting
the machine from either side, step over the mower deck.

STARTING THE ENGINE

To apply the parking brake:

Depress the parking brake pedal firmly with your right
foot and the parking brake lock pedal simultaneously
with your left foot. Then release the parking brake
pedal while holding the parking brake lock pedal down.

To release the parking brake:
Depress the brake pedal and release slowly with your
right foot without pressing the parking brake lock
pedal.

1. Sit on the operator's seat.

2. Apply the parking brake.

(1) Parking brake pedal
(2) Parking brake lock pedal

(A) "DEPRESS"

13OPERATING THE ENGINE

ENGLISH

A If the engine is cold:

Pull the choke knob out.

A If the engine is warm:

Place the throttle control lever midway between the
"SLOW" and the "FAST" positions.

A Do not depress the hydraulic lift control pedal.

When the engine is off, depressing the hydraulic lift
control pedal (UP or DOWN) will lower the implement.

A Because of the start interlocks, the engine can not be

started except when the PTO clutch is disengaged
(OFF), the parking brake lock pedal is applied, motion
control levers are in "NEUTRAL LOCK" position and
the operator is sitting on the seat.

3. Make sure that the PTO lever is in the
"DISENGAGED" (OFF) position.

(1) PTO lever "ENGAGED" (ON)

"DISENGAGED" (OFF)

4. Place the motion control levers in the
"NEUTRAL LOCK" position.

(1) Motion control lever (LH)
(2) Motion control lever (RH)

(A) "NEUTRAL LOCK"
Position
(B) "NEUTRAL" Position
(C) "FORWARD"
(D) "REVERSE"

5. Set the throttle lever as follows.

(1) Throttle lever
(2) Choke knob
(A) Pull out: "ON" position
(B) Push in: "OFF" position

"FAST"
"SLOW"

6. Insert the key into the key switch and
turn clockwise one notch.
Make sure the Easy Checker (TM) lights
are ON.

7. Turn the key switch to the "START"
position and release the key to the "ON"
position when the engine starts.

OPERATING THE ENGINE14

ENGLISH

BThrottle Lever and Choke Knob

Pulling the throttle lever backward decreases the engine
speed and pushing it forward increases the engine speed.

[For a Cold Engine]

Always pull the choke knob out to the "ON" position to
start the engine in cold conditions.

Gradually return the choke control to the "OFF" position
after the engine starts and warms up.

The engine/equipment may be operated during the warm­up period, but it may be necessary to leave the choke
partially on until the engine warms up.

[For a Warm Engine]

Always push the choke knob in to the "OFF" position after
the engine starts.

BKey Switch

A Do not use starting fluid or ether.
A To protect the battery and the starter, make sure that

the starter is not continuously turned for more than 10
seconds at a time.
If the engine does not start, allow 60 seconds cool
down period between starting attempts.

A If the starter does not turn the engine over, shut off the

starter immediately. Do not make further attempts to
start the engine until the condition is corrected. Do not
jump start using another battery.
Consult your local KUBOTA dealer.

A Do not turn the key switch to the "START" position

while the engine is running.

A When the temperature is below 0 (32 ), run the

engine at medium speed to warm up the lubricant of
the engine and the transmission for at least 10
minutes. If the machine is operated before the
lubricant is warm enough, the machine life will be
shortened.

A Do not operate the machine under full load until it is

sufficiently warmed up 2 or 3 minutes for temperature
above 0 (32 ).

A When the ambient temperature is less than -15

(5 ), remove the battery from the machine and store
it somewhere warm until the next operation.

OFF............ The position where the key can be

inserted into or removed from the
key switch. [When the key is turned
to this position, the engine shuts off.]

ON.............. The engine keeps running.

START........ Apply the parking brake and turn the

key switch to this position to start the
engine.

: "OFF"
: "ON"

: "START"

8. Make sure that the Easy Checker (TM)

lights have gone off. If the light is still
on, immediately stop the engine and
check the remedy following the
instruction. (See "CHECK DURING
OPERATING" in "OPERATING THE
ENGINE" section)

9. Warm the engine by running at medium

speed.

15OPERATING THE ENGINE

ENGLISH

CHECK DURING OPERATING

While operating, make the following checks to see that all
the parts are functioning normally.

BImmediately Stop the Engine if:

A The engine suddenly slows down or accelerates.
A Unusual noises are suddenly heard.
A Exhaust fumes suddenly become discolored.

BEasy Checker (TM)

If the warning lamps in the Easy Checker (TM) come on
during operation, stop the engine immediately, and find
the cause as shown below.
Never operate the machine while Easy Checker (TM)
lamp is "ON".

Engine oil pressure
If the oil pressure in the engine goes below the
prescribed level, the warning lamp in the Easy
Checker (TM) will come on.

If this should happen during operation, stop the
engine immediately and check level of engine oil.

BFuel Gauge

1. The fuel gauge shows the amount of fuel left in the LH
tank.

2. Refuel both the fuel tanks evenly.

3. If there is an amount gap between the LH and RH
tanks, the fuel in the bigger-amount tank will be
consumed first.
Fuel in both the tanks will be consumed at the same
time after the fuel levels of both the tanks become the
same.

A Fill the fuel tank only to bottom of the filler neck.
A Fill the fuel on a level ground.
A Be careful not to empty the fuel tank. Otherwise air

may enter the fuel system.
Should this happen, the system should be bled. (See
"Bleeding Fuel System" in "SERVICE AS REQUIRED"
in "PERIODIC SERVICE" section.)

A Only fill with gasoline containing less than 10%

ethanol content.

(1) Easy checker (TM)

(1) Fuel gauge for LH tank (E) "EMPTY"

(F) "FULL"

OPERATING THE ENGINE16

ENGLISH

BCoolant Temperature Gauge

To avoid personal injury:
A Do not remove radiator cap until coolant

temperature is well below its boiling point.
Then loosen cap slightly to the stop to relieve
any excess pressure before removing cap
completely.

If the indicator reaches red zone, or horn sounds.

1. Place the PTO lever in the "DISENGAGE" (OFF)
position.

2. Move the machine to a level surface, and apply the
parking brake.

3. Place the throttle lever in the engine idle position, and
let the engine run for a few minutes.

4. Check the Cooling System, after it has sufficient time
to cool down.

Check the following items:

1. Shortage or leakage of the coolant.

2. Foreign matter on the radiator net or dust and dirt
between the radiator fins.

3. Looseness of fan belt.

4. Blockage in the radiator tube.

(See "PERIODIC SERVICE" section.)

BFuel Drain

To avoid personal injury:
A Be sure to stop the engine and remove the key

when attempting to drain the fuel from the
carburetor.

A Never fail to tighten the screw clockwise after

draining. Fuel may leak out onto the running
engine, causing a fire.

Turn the screw counterclockwise to drain the fuel from the
carburetor.

BFuel Pump

This fuel pump has a limit drive function.

A When the key is in the "OFF" position: It does not work.
A When you turn the key clockwise one notch, before the

engine starts: It works for about 15 seconds.

A Keep the key in this position, before the engine starts.

It will stop working after 15 seconds.
And to reset the timer, keep the key in the "OFF"
position for about 60 seconds.

A When the engine is running: It works normally.

(1) Coolant temperature gauge

(1) Screw
(2) Carburetor

17OPERATING THE ENGINE

ENGLISH

BFuel Valve

There are two positions in the fuel valve.

BHour Meter

This meter gives readings for the hours the machine has
been operated.

A As the hour meter works electrically, it starts to work

when the key switch is turned to "ON", regardless of
the engine running or not.

COLD WEATHER STARTING

If the ambient temperature is below 0 (32 ) and the
engine is very cold, start it in the following manner:

1. Pull the choke knob out.

2. Turn the key switch to the START (" ") position.

A Operate the starter 5 seconds.
A If the engine does not start, wait 10 seconds.
A Repeat this procedure until the engine starts.

3. When the engine starts, release the key to the "ON"
(" ") position.

4. Place the throttle lever midway between the "SLOW"
and the "FAST" positions.

WARMING UP

To avoid personal injury:
A Be sure to apply the parking brake during

warm-up.

For 5 minutes after engine start-up, allow the engine to
warm up without applying any load. This is to allow oil to
reach every engine part. If load should be applied to the
engine without this warm-up period, the troubles such as
seizure, breakage or premature wear may develop.

BWarm-up and Transmission Oil in the Low

Temperature Range

Hydraulic oil serves as transmission oil. In cold weather,
the oil may be cold with increased viscosity. This can
cause delayed oil circulation or abnormally low hydraulic
pressure for some time after engine start-up. This in turn
can result in a trouble in the hydraulic system or a damage
to the hydraulic clutch.
To prevent the above, observe the following instructions:
Warm up the engine at about 50% of rated rpm according
to the table below:

A Do not operate unless the engine is well warmed up. If

operation is attempted while the engine is still cold, the
hydraulic mechanism will not function properly and its
service life will be shortened.

A If noises are heard after the hydraulic control lever has

been activated and the implement is lifting, the
hydraulic mechanism is not adjusted properly. Unless
corrected, the unit will be damaged. Contact your local
KUBOTA Dealer for adjustment.

(1) Fuel valve (A) "OFF" (STOP, CLOSE)

(B) "ON" (RUN, OPEN)

(1) Hour meter

Ambient temperature Warm-up time requirement

Higher than 0 (32 ) Approx. 5 minutes

-10 to 0 (14 to 32 ) 5 to 10 minutes

-20 to -10 (-4 to 14 ) 10 to 15 minutes
Below -20 (-4 ) M ore than 15 minutes

OPERATING THE ENGINE18

ENGLISH

JUMP STARTING

To avoid serious injury:
A Battery gases can explode. Keep cigarettes,

sparks, and flames away from battery.

A If the machine battery is frozen, do not jump

start the engine.

A Do not connect the other end of negative

jumper cable to the negative terminal of the
machine battery.

When jump starting engine, follow the instructions below
to start the engine safely.

1. Bring a helper vehicle with a battery of the same
voltage as a disabled machine within easy cable
reach. "THE VEHICLES MUST NOT TOUCH".

2. Apply the parking brakes of both vehicles and put the
shift levers in neutral. Shut the engine off.

3. Put on safety goggles and rubber gloves.

4. Ensure vent caps are securely in place (if equipped).

5. Attach the red clamp to the positive (red, (+) or pos.)
terminal of the dead battery and clamp the other end
of the same cable to the positive (red, (+) or pos.)
terminal of the helper battery.

6. Clamp the other cable to the negative (black, (-) or
neg.) terminal of the helper battery.

7. Clamp the other end to the engine block or the frame
of the disabled machine as far from the dead battery
as possible.

8. Start the helper vehicle and let its engine run for a few
moments. Start the disabled machine.

9. Disconnect the jumper cables in the exact reverse
order of attachment. (Steps 8, 7 and 6)

A This machine has a 12 volt negative (-) ground starting

system.

A Use only same voltage for jump starting.

A Use of a higher voltage source on a machine could

result in severe damage to the machine electrical
system.
Use only matching voltage source when "jump­starting" a low or dead battery condition.

(1) Dead battery
(2) Jumper cables
(3) Engine block or frame
(4) Helper battery

Connect cables in numerical order.
Disconnect in reverse order after
use.

19OPERATING THE ENGINE

ENGLISH

STOPPING THE ENGINE

1. After slowing the engine to half speed, turn the key
switch to the "OFF" position.

2. Remove the key.

3. Do not leave the key switch "ON" (key in the "ON"

position) as the battery will discharge when the
engine is not running.

4. Apply the parking brake.

A Do not stop the engine when the machine is on an

incline for a long time. The engine oil may go into the
carburetor and the muffler through the valve system.

A Place the throttle control lever in the half speed

position to help prevent the engine from backfiring
before stopping the engine.

BEngine Stop (By manual)

The engine stops when the key switch is turned off. If the
engine does not stop, make sure the motion control levers
are in "NEUTRAL LOCK" position, the PTO lever is
"OFF", the mower lowered to the ground, apply the
parking brake, and confirm it is set, then carefully get off
the machine. Then open the hood and disconnect the wire
harness from solenoid. Then contact your local KUBOTA
Dealer immediately.

To avoid personal injury:
A Do not operate the machine until the engine

stop system is repaired.

(1) Solenoid
(2) Wire harness

20 OPERATING THE MACHINE

ENGLISH

OPERATING THE MACHINE

OPERATING NEW MACHINE

How a new machine is operated and maintained
determines the life of the machine.
A new machine just off the factory production line has
been tested, but the various parts are not accustomed to
each other, so care should be taken to operate the
machine for the first 50 hours at a slower speed and avoid
excessive work or operation until the various parts
become "broken-in." The manner in which the machine is
handled during the "breaking-in" period greatly affects the
life of your machine. Therefore, to obtain the maximum
performance and the longest life of the machine, it is very
important to properly break-in your machine. In handling a
new machine, the following precautions should be
observed.

BChanging Lubricating Oil for New

Machines

The lubricating oil is especially important in the case of a
new machine. The various parts are not "broken-in" and
are not accustomed to each other; small metal grit may
develop during the operation of the machine; and this may
wear out or damage the parts. Therefore, care should be
taken to change the lubricating oil a little earlier than
would ordinarily be required.
For further details of change interval hours.
(See "SERVICE INTERVALS" in "MAINTENANCE"
section.)

BEngine Break-in

After the first 50 hours of operation, change the engine oil
and filter. (See "EVERY 100 HOURS" "EVERY 200
HOURS" in "PERIODIC SERVICE" section.)

BMachine Break-in

After the first 50 hours of operation, change the HST
transmission oil filter. (See "EVERY 200 HOURS" in
"PERIODIC SERVICE" section.)
After the first 400 hours of operation, change the hydraulic
oil filter and the transmission fluid. (See "EVERY 400
HOURS" in "PERIODIC SERVICE" section.)

To avoid serious injury or death:
A Do not operate the mower without the deflector

shield in the down position.

To avoid serious injury or death:
A The machine relies upon the engine driven

transmission for speed, direction and motion
control. If the engine is not running, the
machine cannot be driven or controlled.
If the engine stops when operating on a slope,

apply the parking brake immediately to prevent
machine runaway.

A Do not allow any person other than the driver to

ride on the machine.

A Do not drive the machine close to the edges of

ditches or banks which may collapse under the
weight of the machine, especially when the
ground is loose or wet.

A When turning the machine, be sure to reduce

the travel speed and operate motion control
levers carefully.

A To avoid tip over, operate across slopes, not up

and down. Avoid sudden starts and stops on
slopes. Slow down, and use extra caution when
changing direction on a slope.
Park the machine on a firm and level surface.

A Watch where you are going at all times. Watch

for and avoid obstacles. Be alert at curbs, near
trees, and other obstructions and hidden
hazards.

A Do not mow near drop-offs, ditches or

embankments. The mower could turn over if a
wheel is over the edge of cliff or ditch, or if an
edge caves in.

A Do not drive machine on streets or highways.

Watch for traffic when you cross roads or
operate near roads.

A Look to the rear before and when backing.

Make sure the area immediately behind you is
clear of obstructions or holes and small
children. Use extra caution when machine is
equipped with Grass Catcher.

A Keep bystanders especially children and

animals away from the mowing area.

To avoid personal injury:
A Clear the work area of objects which might be

picked up and thrown by blades.

A Do not direct the opening of the chute at

bystanders or animals. Ejected objects may
cause injury. Plan your mowing carefully
before starting operation.

A Be sure to disengage the PTO and sit on the

operator's seat before starting the engine.

21OPERATING THE MACHINE

ENGLISH

OPERATING FOLDABLE ROPS

To avoid personal injury:
A When raising or folding the ROPS, apply

parking brake, stop the engine and remove the
key.
Always perform function from a stable position
to the rear of the machine.

A Fold the ROPS down only when absolutely

necessary and fold it up and lock it again as
soon as possible.

A Before proceeding to fold the ROPS, check for

any possible interference with installed
implements and attachments.
If interference occurs, contact your KUBOTA
Dealer.

BTo Fold the ROPS

1. Unscrew the knob bolts 1 to 2 turns.

2. Remove both lock pins.

3. Fold the ROPS.

To avoid personal injury:
A Hold the ROPS tightly with both hands and fold

the ROPS slowly and carefully.

4. Align lock pin holes and insert both lock pins and
secure them with the hair pins.

To avoid personal injury:
A Make sure that both lock pins are properly

installed and secured with the hair pins.

(1) Lock pin
(2) Hair pin
(3) Knob bolt

(1) ROPS

(1) Lock pin
(2) Hair pin

OPERATING THE MACHINE22

ENGLISH

BTo Raise the ROPS to Upright Position

1. Remove both hair pins and lock pins.

2. Raise ROPS to the upright position.

To avoid personal injury:
A Hold the ROPS tightly with both hands and

raise the ROPS slowly and carefully.

3. Align lock pin holes, insert both lock pins and secure
them with the hair pins.

4. Tighten the knob bolts slightly.

To avoid personal injury:
A Make sure that both lock pins are properly

installed as soon as the ROPS is in the upright
position and secured with the hair pins.

BAdjustment of Foldable ROPS

A Adjust free fall of the ROPS upper frame regularly.
A If you feel less friction when folding the ROPS, tighten

the nut (1) until you feel the right friction in the
movement and then replace the hair pin.

(1) Lock pin
(2) Hair pin

(1) Lock pin
(2) Hair pin
(3) Knob bolt

(1) Nut

23OPERATING THE MACHINE

ENGLISH

STARTING

BOperator's Seat

To avoid personal injury:
A Make adjustments to the seat only while the

machine is stopped.

A Make sure that the seat is completely secured

after each adjustment.

A Do not allow any person other than the driver to

ride on the machine.

C Travel adjustment

Unlock the travel adjust lever and slide the seat backward
or forward, as required. The seat will lock in position when
the lever is released.

To avoid personal injury:
A Use extra caution when unlocking the travel

adjust lever because the seat might slide
forward by itself.

C Suspension adjustment

Pull the suspension adjust knob and turn it to achieve the
optimum suspension setting. After setting, push back the
knob.

C Lumbar support adjustment

Turn the lumbar support adjust lever to the desired
position.

C Arm rest

Arm rest may be set at upright position if desired.

C Arm rest angle adjustment

Turn the arm rest angle adjuster to the desired angle.

C Backrest tilt adjustment

Turn the backrest tilt adjust knob to the desired angle.

A After adjusting the operator's seat, be sure to check to

see that the seat is properly locked.

1. Adjust the operator's position and
engage the seat belt.

(1) Travel adjust lever
(2) Suspension adjust knob
(3) Lumbar support adjust lever
(4) Arm rest
(5) Arm rest angle adjuster
(6) Backrest tilt adjust knob

OPERATING THE MACHINE24

ENGLISH

BSeat Belt

To avoid personal injury:
A Always use the seat belt when the ROPS is

installed.

A Do not use the seat belt if a foldable ROPS is

down or there is no ROPS.

Adjust the seat belt for proper fit and connect to the
buckle. The seat belt is auto-locking retractable type.

BHydraulic Lift Control Pedal

The hydraulic lift control pedal is used to raise and lower
the implement used with the machine (ex. Mower).
To lower the implement, depress the hydraulic lift control
pedal (DOWN).
To raise it, depress the hydraulic lift control pedal (UP).

A Do not operate until the engine is warmed up. If

operation is attempted when the engine is still cold, the
hydraulic system may be damaged.

A Do not operate at slow Engine rpm. Move the throttle

lever above 1/2.

A If noises are heard when implement is lifting after the

hydraulic lift control pedal has been activated, the
hydraulic mechanism is not adjusted properly. Contact
your local KUBOTA Dealer for adjustment.

A Do not depress the hydraulic lift control pedal.

When the engine is off, depressing the hydraulic lift
control pedal (UP or DOWN) will lower the implement.

BThrottle Lever

Moving the throttle lever backward decreases the engine
speed and moving it forward increases the engine speed.

(1) Seat belt

2. Raise the implement.

(1) Hydraulic lift control pedal (UP)
(2) Hydraulic lift control pedal
(DOWN)

(A) "DEPRESS"

"UP"
"DOWN"

3. Accelerate the engine.

(1) Throttle lever "INCREASE"

"DECREASE"

25OPERATING THE MACHINE

ENGLISH

BParking Brake Pedal

To release the parking brake:

Depress the brake pedal and release slowly with your
right foot, without pressing the parking brake lock
pedal.

BMotion Control Lever

To avoid personal injury:
A Understand how to use the motion control

levers and practice in an unrestricted area at a
little more than an idle speed without the
mower engaged until becoming proficient in
the operation of the machine.

A Do not move motion control levers from

forward to reverse or reverse to forward
position rapidly.
Sudden direction changes could cause loss of
control or damage to the machine or property.

A Do not make sharp turns at high speeds.

Fast and sharp turns could cause loss of
control.

A Motion control levers must be in "NEUTRAL

LOCK" position to safely enter and exit the
operator's seat or to carry out maintenance and
safety checks.

A This machine can make sharp turns. Always

make sure your intended path is clear of
obstructions or persons.

C Neutral lock position
A Forward and reverse movement of the motion control

levers are prevented when levers are in "NEUTRAL
LOCK" position. (Engine can only be started with
levers in this position.)

4. Unlock the parking brake.

(1) Parking brake pedal
(2) Parking brake lock pedal

(A) "DEPRESS"

5. Operate the machine.

Stop position

(1) Motion control levers (A) "NEUTRAL LOCK" position

(B) "NEUTRAL" position

OPERATING THE MACHINE26

ENGLISH

Machine speed and steering is controlled by the motion
control levers, when the engine is running and the parking
brake is released.

To avoid personal injury:
A No control is provided by the motion control

levers when the engine is off.

C Neutral position
A Grasp the motion control levers and move them

inward from the "NEUTRAL LOCK" position so that the
machine is in "NEUTRAL". (Engine cannot be
restarted.)

C Forward and Reverse Motion:

1. Move throttle lever to the "FAST" position.

2. Release the parking brake.

3. Move both motion control levers from the "NEUTRAL
LOCK" position inward to the "NEUTRAL" position.

4. Push the control levers slowly forward to begin forward
motion.
To move reverse:
Pull both control levers slowly rearward at the same
time to begin reverse motion.
To stop:
Move by hand and hold both motion control levers to
the "NEUTRAL" position until the machine comes to a
stop.

To avoid personal injury:
A The motion control lever adjustment is

important to ensure the machine operates
properly.

A The motion control linkages are adjustable.

If adjustment is required, see "ADJUSTMENT"
section. We recommend you to contact your local
KUBOTA Dealer.

C Re-start on slopes

To avoid personal injury:
A Do not stop or change directions on slopes.

These operations could cause loss of the
machine traction or control.
Starting procedure on slopes is different from
the usual start mode on a flat surface,
understand how to re-start on slopes and use
extra caution.

If a situation occurs where it is necessary to stop and re­start on a slope, refer to the following operational steps.

How to re-start on slopes:

1. Firmly apply parking brake (enough to prevent
movement).

2. Start the engine.

3. Set the throttle lever to the middle position.

4. Place the control levers inward to the "NEUTRAL"
position gradually.

5. Release the parking brake within about 3 seconds.
If you take more time, the engine will suddenly stop
because of a safety device. (This is to prevent the
machine from being operated with the parking brake
applied.)
When the engine stops, start over by firmly reapplying
the parking brake, and repeat steps 2 through 5 and
then 6.

6. Move the machine slowly and carefully.

Operating position

(1) Motion control levers (A) "NEUTRAL" position

(B) "NEUTRAL LOCK" position

27OPERATING THE MACHINE

ENGLISH

FORWARD:

A Push both motion control levers forward equally at the

same time. For travel forward in a straight line.

REVERSE:

A Pull both motion control levers past center rearward

equally at the same time. For rearward travel in a
straight line.

GENERAL LEFT TURN:

A Push right motion control lever further forward than the

left motion control lever. For forward travel to the left.

GENERAL RIGHT TURN:

A Push left motion control lever further forward than the

right motion control lever. For forward travel to the
right.

SHARP (ZERO) LEFT TURN:

A Push right motion control lever forward and pull left

motion control lever rearward at the same time.

SHARP (ZERO) RIGHT TURN:

A Push left motion control lever forward and pull right

motion control lever rearward at the same time.

OPERATING THE MACHINE28

ENGLISH

WORK LIGHT (OPTIONAL KIT)

STOPPING

To avoid personal injury:
A Park the machine on level ground.

If necessary to park on an incline,
(1) Stop the machine,
(2) Apply the parking brake, then
(3) Stop the engine.

A If you stop the engine on an incline without

applying the parking brake, the machine could
move and run away.

A The parking brake pedal is for parking and emergency

use only. If the parking brake is applied when the
motion control levers are not in "NEUTRAL LOCK"
position, the engine will stop within approximately 3
seconds. This feature is to prevent brake and
transmission damage during operation.

1. Move both motion control levers to the "NEUTRAL"
position to stop the machine.

2. Apply parking brake.

3. Move both motion control levers to "NEUTRAL LOCK"
position.

4. Move the throttle lever to the half speed position and
shift PTO lever to the "DISENGAGE" (OFF) position.

5. Lower all implements to the ground.

6. Turn off the engine and remove the key.

A Do not stop the engine when the machine is on an

incline for a long time. The engine oil may go into the
carburetor and the muffler through the valve system.

A Place the throttle control lever in the half speed

position to help prevent the engine from backfiring
before stopping the engine.

PARKING

TO LOCK:

Depress the parking brake pedal firmly with your right
foot, and the parking brake lock pedal simultaneously
with your left foot. Then release the parking brake
pedal while holding the parking brake lock pedal down.

TO UNLOCK:

Depress the parking brake pedal and release slowly
with your right foot, without pressing the parking brake
lock pedal.

To avoid personal injury:
Before leaving the operator's position,

A Apply parking brake.
A Lower all implements to the ground.
A Shut off the engine.
A Remove the key.
A Place the motion control levers in the

"NEUTRAL LOCK" position.

If necessary to park on an incline, be sure to chock the
wheels on the downhill side to prevent accidental rolling of
the machine.

(1) Work light

(1) Chocks

29OPERATING THE MACHINE

ENGLISH

TRANSPORTING

1. Transport the machine on a trailer.

A Turn the fuel valve to the "OFF" position.
A Fasten the machine to the trailer properly and

comply with the federal and local regulations.

A To prevent the hood from opening by wind while in

transit, it is necessary to either load the machine
backward or use a suitable tie down for the hood.

2. Do not attempt to tow this machine, or damage to the
transmission may result.

3. When transporting the machine over a long distance:

A Turn the cutting height control dial to 5 in. position.
A Lower the mower deck by depressing the hydraulic

lift control pedal (DOWN).

30 OPERATING THE MOWER

ENGLISH

OPERATING THE MOWER

MAKING THE MOST OF YOUR MOWER

1. When using your mower for the first time, choose a
smooth level area and cut in straight and slightly
overlapping strips.

2. The size and type of the area to be mowed will
determine the proper mowing pattern. Take into
account obstructions, such as trees, fences and
buildings. To keep grass clippings off fences,
sidewalks, etc., it is advisable to go over the outside of
the area to be mowed several times in a clockwise
direction. To mow the area remaining, work in a
counterclockwise direction so that the clippings are
dispersed onto the previously cut area.

3. Always keep the left side of the mower toward trees,
posts or other obstacles on the first trip around the
obstacle.

4. Most lawns should be mowed to keep the grass
approximately 50 to 80 mm (2 to 3 in.) high. Best
results are obtained by cutting often and not too short.
To keep a green lawn, never mow more than one third
of the height of the grass or a maximum of 25 mm (1
in.) in one mowing.
For extremely tall grass, set the cutting height at
maximum cutting height for the first mowing, then
reset to the desired height and mow again. Allow the
grass to grow to 80 mm (3 in.), then cut off only the top
inch.

5. For best appearance, grass should be cut in the
afternoon or evening when it is free of moisture.

ADJUSTING CUTTING HEIGHT

To avoid serious injury or death:
A Do not engage the mower in the transport

position.

1. Before adjusting cutting height, check that all tire
pressures are correct. If necessary adjust to the
correct tire pressure.

2. To set the cutting height, depress the hydraulic lift
control pedal (UP) to raise mower deck to the top
position. Adjust the cutting height control dial to
desired height.
Lower the mower deck by depressing the hydraulic lift
control pedal (DOWN).
Then the mower deck will be set to the cutting height.

3. Use the higher settings for mowing in a rough area or
when mowing tall grass. Lower settings should be
used only for smooth lawns where short grass is
desired.

4. Lower the mower deck by depressing the hydraulic lift
control pedal (DOWN). This lowers the mower deck
from the "TRANSPORT" position to the
"OPERATING" position.

5. Adjust the anti-scalp rollers' height as recommended
below for normal operating condition. To minimize
gouging and roller damage or wear, the anti-scalp
rollers will maintain the ground clearance of 19 mm (3/
4 in.).

A Never allow roller to contact the ground continuously

as premature roller wear may develop if set
incorrectly.

A Anti-scalp rollers must maintain a minimum clearance

of 6 mm (1/4 in.) to the ground.

[PIN]

(1) Cutting height control dial
(2) Hydraulic lift control pedal

31OPERATING THE MOWER

ENGLISH

(1) Anti-scalp roller (Front, pin shift type)
(2) Anti-scalp roller (Rear, bolt shift type)

(1) Anti-scalp roller (Front, swivel type)
(2) Anti-scalp roller (Rear, bolt shift type)

OPERATING THE MOWER32

ENGLISH

Reference

A Set position for recommended ground clearance 19 mm (3/4 in.).

Cutting

height

inch (mm)

The number of collars

under the boss

Position of

pins

Position of

bolts

Ground

clearance

mm (Ref.)

Rear anti-scalp roller

Pin

shift type

Bolt

shift type

1.00" (25) 0 1

1

66

1.25" (32) 0 2 13 12

1.50" (38) 0 1 19 19

1.75" (44) 1 3 13 25

2.00" (50) 1 2
2

19 19

2.25" (58) 2 4 13 25

2.50" (64) 2 3

3

19 19

2.75" (70) 3 5 13 25

3.00" (76) 3 4 19 (31) *2

3.25" (83) 4 6 13 (38) *3

3.50" (89) 4 5 19 *1 (44) *3

3.75" (95) 4 7 13 *3 (51) *3

4.00" (102) 4 6 19 *3 (57) *3

4.25" (108) 4 7 13 *3 (63) *3

4.50" (114) 4 7 19 *3 (70) *3

4.75" (121) 4 7 25 *3 (76) *3

5.00" (127) 4 7 31 *3 (83) *3

*1. For cutting heights above 3.5". The anti-scalp rollers will still be effective against scalping.
*2. For cutting heights above 3.0". The anti-scalp rollers will still be effective against scalping.
*3. Use it if necessary.

33OPERATING THE MOWER

ENGLISH

OPERATING MOWER

To avoid serious injury or death:
A Do not operate the mower without the

discharge deflector being properly place.

To avoid personal injury:
A Clear the work area of objects which might be

picked up and thrown.

A Do not direct the opening of the deflector at

bystanders especially children or animals.
Ejected objects may cause injury. Plan your
mowing carefully before starting operations.

A Keep bystanders and animals away from the

mowing area.

A Be sure to disengage the PTO clutch of the

mower before attempting to start the engine.

BPTO Lever

To engage the PTO, move the PTO lever to the
"ENGAGED" (ON) position.

1. If you get off the seat while the PTO is running, the
engine will stop automatically. (Operator presence
control)

2. Before starting the engine, pull the PTO lever to the
"DISENGAGED" (OFF) position. If it is at the
"ENGAGED" (ON) position, the engine will not start.

A These interlock features are built-in.

BStarting

To avoid serious injury or death:
A Engine components can get extremely hot from

operation. To prevent severe burns, do not
touch these areas while the engine is running,
or immediately after it is turned off.
Never operate the engine without heat shields
or guards.

1. Sit on the operator's seat.

2. Start the engine.

3. Engage the PTO lever.

4. Disengage the parking brake.

5. Speed up the engine by moving the throttle lever
forward.

6. Push or pull the motion control levers to move forward
or backward.

A Never attempt to move the machine with the parking

brake "ON".

A Keep the engine running at full throttle for best results.

Control the travel speed with the motion control levers.

A During heavy duty use, operate the machine at a

slower ground speed or go over the area twice.

A Keep the mower deck in the raised position when the

mower is disengaged.

A The mower will not cut cleanly if the ground speed is

too high or if the blade speed drops due to an
overload.

A If debris builds up on the grass screen or other cooling

air intake areas, stop the engine and clean them.
Operating the engine with blocked or dirty air intake
and cooling areas causes damage due to overheating.

(1) PTO lever "ENGAGED" (ON)

"DISENGAGED" (OFF)

34 TIRES AND WHEELS

ENGLISH

TIRES AND WHEELS

TIRES

To avoid serious injury:
A Do not attempt to mount a tire. This should be

done by a qualified person with the proper
equipment.

A Always maintain the correct tire pressure.

Do not inflate tires above the recommended
pressure shown in the Operator's Manual.

A Inflation pressure in front tires rises quickly

when using compressed air.

Never operate machine with a loose rim, wheel, or
axle.
A Whenever bolts are loosened, retighten to

specified torque.

A Check all bolts frequently and keep them

tightened.

BInflation Pressure

Though the inflation pressure is factory-set to the
prescribed level, it naturally drops slowly in the course of
time. Thus, check it everyday and inflate as necessary.

WHEELS

A When re-fitting a wheel, tighten the wheel bolt to the

following torques then recheck after traveling 200 m
(200 yards) changing directions several times.

Wheels with beveled or tapered holes:
Use the tapered wheel bolt and tapered nut.

Tire sizes

Recommended Inflation

Pressure

Front

15 x 6.0 - 6,

(Semi-pneumatic

Non Flat Tire) Rib

- - -

Rear

26 x 12.0 - 12,

4PR Turf

120 kPa

(1.2 kgf/cm , 17psi)

(1) Ground (A) "INSUFFICIENT"

(B) "NORMAL"
(C) "EXCESSIVE"

35TIRES AND WHEELS

ENGLISH

BRemove and Install Front Caster Wheels

C Removing

1. Park the machine on a firm and level surface.

2. Stop the engine and apply parking brake.

3. Lift the front of machine with a safe lifting device.

4. Remove the lock nut with nylon sleeve and the wheel
bolt.

5. Remove the wheel and dust cover from assembly
yoke.

C Installing

1. Install the replacement wheel and dust cover.

2. Install the wheel bolt and the lock nut with nylon
sleeve.

3. Tighten the nut.

4. After installing, grease to the nipples.

A Insert the wheel bolt from the outside of the yoke.
A Tighten the nut gradually until wheel bearing play is

eliminated and wheel turns freely by hand.

Reference

5. Lower machine.

Tightening torque

20 to 25 N-m

(14.8 to 18.4 lbf-ft)

(2 to 2.5 kgf-m)

(1) Lock nut
(2) Wheel bolt
(3) Yoke
(4) Dust cover

36 MAINTENANCE

ENGLISH

MAINTENANCE

SERVICE INTERVALS

The following servicing tasks should be carried out on the machine at the stated running-time intervals.

No. Items

Indication hour meter (Hr)

Ref.

Page

50 100 150 200 250 300 350 400 450 500 550 600

After

since

1 Engine oil Change

every

100Hr

55

2 Engine oil filter Replace

every

200Hr

65

3

HST transmission oil
filter

Replace

every

200Hr

67

4 Hydraulic oil filter Replace

every

400Hr

69

5

Transmission fluid
and
Rear axle gear case
(RH & LH) fluid

Change

every

400Hr

68

6 Mower gear box oil

Check

every
50Hr

51

Change

every

150Hr

64

7 Safety device Check

every
50Hr

50

8

Greasing
(except mower)

---

every
50Hr

52

9 Oiling ---

every
50Hr

54

10

Air cleaner primary
element

Clean

every

100Hr

56 *1

Replace

every

1 year

70

Secondary element Replace

every

1 year

70

11

Carbon canister air
filter

Check

every

100Hr

63

*2

Replace

every

2 years

73

12 Fuel filter element

Check

every

100Hr

57

Replace

every

400Hr

70 *2

13 Fuel line

Check

every

100Hr

57

Replace

every

2 years

73 *2

14 Fan belt Adjust

every

100Hr

59

15 Parking brak e Adjust

every

100Hr

60 *2

16 Battery condition Check

every

100Hr

61

37MAINTENANCE

ENGLISH

A The jobs indicated by must be done initially.

*1 This maintenance should be done daily or more often in dusty condition than in normal conditions.
Suggested cleaning interval is every 100 hours in normal conditions.
*2 These items should be serviced by an authorized KUBOTA Dealer, unless the owner has the proper tools
and is mechanically proficient.
*3 Consult your local KUBOTA Dealer for this service.
*4 Replace only if necessary.
*5 On every after 1000 Hr, clean it if necessary.

A GASOLINE ENGINE EMISSION RELATED MAINTENANCE INSTRUCTIONS:

1. Non-warranty maintenance, repair, or replacement of the emission control devices and systems should be performed
by a qualified repair establishment or individual which has the experience and equipment to perform such work.
See the Emissions Warranty Statement.

2. To ensure the best quality and reliability, use new KUBOTA Genuine parts or their equivalents for repair and
replacement, whenever you have maintenance done.

17

Radiator hose and
clamp

Check

every

200Hr

65

Replace

every

2 years

73 *2

18 Throttle cable Adjust

every

100Hr

62

19

Spark plug condition
and gap

Check

every

100Hr

55

20 Hydraulic hose

Check

every

200Hr

66

Replace

every

2 years

73 *2

21 Intake air line

Check

every

200Hr

68

Replace

every

2 years

73 *4

22

Engine breather
hose

Replace

every

2 years

73 *3

23

Motion control lever
pivot

Adjust

every

200Hr

67

24

Engine valve
clearance

Adjust

every

500Hr

70

25

Combustion
chamber

Clean *5 70

26 Radiator Clean

every

1 year

71

27 Coolant Change

every

1 year

71

28

Mower gear box oil
seal

Replace

every

2 years

73 *2

29 One way valve Replace

every

2 years

73

30 Fuse Replace

Service

as

required

73
31 Blade Replace 74
32 Mower belt Replace 76
33 Fuel system Bleed 76

No. Items

Indication hour meter (Hr)

Ref.

Page

50 100 150 200 250 300 350 400 450 500 550 600

After

since

MAINTENANCE38

ENGLISH

PERIODIC SERVICE CHART LABEL

(1) Part No. K3241-6552- (ENGLISH) (2) Part No. K3241-6553- (SPANISH)

39MAINTENANCE

ENGLISH

LUBRICANTS AND FUEL

Note *1 Oil amount when the oil level is at the upper level of the oil level gauge.

*2 KUBOTA original transmission hydraulic fluid

A To prevent serious damage to hydraulic systems, use only KUBOTA genuine fluid or its equivalent.

Place

Capacities

Lubricants

ZG332P, ZG332LP

Fuel 49 L (12.9 U.S. gals.)

Unleaded gasoline 87 octane or higher up to

10% ethanol content by volume

Coolant 2.7 L (2.85 U.S.qts.)

Fresh clean water with anti-freeze

Recovery tank 0.25 L (0.26 U.S.qts.)

Engine crankcase 3.5 L (3.7 U.S.qts.)*1

Engine oil: API service
Classification SH or higher
Above 25 (77 )...SAE30 or 10W-30
0 to 25 (32 to 77 )...SAE20 or 10W-30

-18 to 0 (0 to 32 )...SAE10W or 10W-30

Transmission case with filter & hose
Rear axle gear case (RH &LH)

12.1 L (12.8 U.S.qts.) KUBOTA UDT or SUPER UDT fluid*2

Mower gear box 0.4 L (0.4 U.S.qts.)

SAE90 gear oil
(API service classification: more than GL-3)

Greasing No. of greasing points Capacity Type of grease

Front axle 2 Until grease

overflows

Multipurpose EP2 Grease

(NLGI Grade No.2)

Front wheel 2
Parking brake lock pedal 1
Front lift arm 2
Universal joint 3
Seat adjuster 2
Motion control lever pivot bushing, and contact p osition 6
Cable (throttle) 2

Moderate amount Oil

Cable (choke) 2
[MOWER] Until grease

overflows

Multipurpose EP2 Grease

(NLGI Grade No.2)

Universal joint 3
Three spindle shafts 3
Belt tension pulley 1
Belt tension pivot 1
Front anti scalp roller pivot boss 2
Front anti scalp roller 2

40 MAINTENANCE

ENGLISH

C Engine Oil:

A Oil used in the engine should have an American Petroleum Institute (API) service classification and proper SAE

Engine Oil according to the ambient temperatures as shown above.

A Indicated capacity of oil is manufacture's estimate.

C Transmission oil:

A The oil used to lubricate the transmission is also used as hydraulic fluid. To insure proper operation of the hydraulic

system and to complete lubrication of the transmission, it is important that a multi-grade transmission fluid is used
in this system. We recommend the use of KUBOTA UDT or SUPER UDT fluid for optimum protection and
performance. (Consult your local KUBOTA Dealer for further detail.)
Do not mix different brands together.

A Indicated capacity of oil is manufacture's estimate.

C Fuel:

A Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is approved for the engine. Other gasoline/

alcohol blends are not approved.

A Indicated capacity of fuel is manufacture's estimate.

41PERIODIC SERVICE

ENGLISH

PERIODIC SERVICE

HOW TO OPEN THE HOOD AND STEP

To avoid personal injury from contact with moving
parts:
A Never open the hood while the engine is

running.

A Never open the step while the engine is

running.

A Do not touch muffler or exhaust pipes while

they are hot; Severe burns could result.

BHood

To open the hood, pull the latch lever frontward and then
open.

BStep

To open the step, pull the grip.

(1) Latch lever
(2) Hood

(A) "RELEASE"

(1) Hood

(1) Step
(2) Grip

(A) "PULL"

PERIODIC SERVICE42

ENGLISH

HOW TO RAISE THE OPERATOR'S SEAT

C Raise

To avoid personal injury:
A Fully raise the operator's seat.

(To the locked position)
Do not keep the seat halfway.

1. Seat must be all the way back before raising.

2. Pull the latch lever on the seat panel frontward.

3. Raise the operator's seat to the "LOCK" position.

C Lower

To avoid personal injury:

A Do not drop the seat to close it.
A Watch your hands. Do not place your hands

under the seat, when closing.

1. Pull up the seat support rod and release the "LOCK".

2. Lower the seat slowly to lock.

3. Slide the seat to proper position.

(1) Latch lever (A) "PULL"

(1) Operator's seat
(2) Seat support rod

43PERIODIC SERVICE

ENGLISH

HOW TO OPEN THE LEVER GUIDE

To avoid personal injury:

A Park the machine on a firm and level surface.
A Stop the engine, remove the key and apply the

parking brake.

1. Remove the screw of the lever guide.

2. Pull up the lever guide.

How to install the lever guide.

1. Install the lever guide.

2. Tighten the screw.

A If the lever guide is out of alignment with the motion

lever, move the lever guide to align it with the motion
lever.

LIFT-UP POINT

To avoid serious injury, death or machine damage:
A Do not work under the machine unless it is

secured by safe stands or suitable blocking.

BFront side:

Hook nylon slings at the front frame.
Hoist the front axle support with nylon sling or jack up the
front frame.
Never lift up the mower deck.

BRear side:

Hoist the rear frame with nylon slings. Or jack up the
bottom plate.
Never lift up the battery support.

(1) Lever guide
(2) Screw

(1) Front axle frame
(2) Nylon sling

(3) Jack
(4) Wood block

(1) Rear frame
(2) Nylon sling
(3) Bottom plate
(4) Jack

PERIODIC SERVICE44

ENGLISH

DAILY CHECK

To prevent trouble from occurring, it is important to know
the condition of the machine. Check it before starting.

To avoid personal injury:
A Be sure to check and service the machine on a

level surface with the engine shut off, the key
removed and the parking brake securely set or
chock the rear wheels.

No. Check item

Ref.

Page

Walking

around the

machine

1

Damage of machine body,
tightness of all bolts and
nuts and pins, etc.

-

2 Fuel, oil and water leak ­3

Tire pressure, wear and
damage

34

47
4 Engine oil level 45
5 Fuel level 45
6 Radiator screen 46
7 Bonnet screen 46
8 Transmission fluid level 48

9

Coolant level in the radiator
and the recovery tank.

48

10 Greasing 52
11 Brake play 60
12 Air cleaner primary element 56
13 Machine body cleaning -

Mower

1 Check all hardware. ­2

Make sure all pins are in
place

-

3 Mower deck cleaning -

4

Greasing

A Universal joint
A Three spindle shafts
A Belt tension pulley
A Belt tension pivot
A Front anti-scalp roller

pivot boss

A Front anti-scalp roller

49

5 Oil leak 51
6

Make sure blade bolts are
tight

74

7

Blades and belt wear or
damage

74

While sitting
in the
operator's
seat

1 Motion control lever ­2 Parking brake ­3 Other movable parts 49

Turning the
key switch
"ON"

1

Performance of the Easy
Checker (TM) light

15

Starting the
engine

1 Color of the exhaust fumes ­2

Check for abnormal noise
and vibration.

-

3

Safety devices.
If either of these do not
operate properly, contact
your local KUBOTA Dealer
immediately.

50

Others 1

Check the areas where
previous trouble was
experienced.

-

No. Check item

Ref.

Page

45PERIODIC SERVICE

ENGLISH

BChecking Engine Oil Level

To avoid personal injury:
A Always stop the engine and remove the key

before checking oil.

1. Check engine oil before starting and 5 minutes or more
after the engine has stopped.

2. Wipe dipstick area clean.

3. To check the oil level, remove the dipstick, wipe it
clean, replace it, and draw it out again. Check to see
that the oil level is between the two notches.

4. Add new oil to the prescribed level at the oil port if
necessary.

5. When using a different brand or viscosity oil from the
previous one, remove all of the old oil and oil filter.
Never mix two different types of oil.

6. Use the proper Engine Oil SAE according to the
ambient temperatures. (See "LUBRICANTS AND
FUEL" in "MAINTENANCE" section.)

BChecking Amount of Fuel and Refueling

To avoid personal injury:
A Handle fuel carefully. If the engine is running,

do not fill the fuel tank. If engine is hot, let
engine cool several minutes before adding fuel.
Do not smoke while filling the fuel tank or
servicing the fuel system. Fill fuel tank only to
bottom of filler neck. Do not fill completely full.
The empty space in the tank allows gasoline to
expand, when it heats up. Never remove the
fuel tank cap or add fuel when the fuel tank is
hot.

Check the fuel level. Take care that the fuel tank does not
become empty.

A Do not mix oil with gasoline.
A Tighten the fuel cap until it clicks.
A Do not use the fuel cap other than KUBOTA approved

one.

A Do not permit dirt or trash or water to get into the fuel

system.

A Be careful not to let the fuel tank become empty,

otherwise air will enter the fuel system, necessitating
bleeding before next engine start.

A Be careful not to spill fuel during refueling. If a spill

should occur, wipe it off at once, or it may cause a fire.

Use only unleaded gasoline with an octane rating index of
87 or higher may be used.

A Use fuel within approximately 30 days after purchase

to avoid deterioration in fuel quality, or add fuel
stabilizer to keep fuel fresh and stabilized.

(1) Engine oil port
(2) Oil level dipstick

(A) "UPPER LEVEL"
(B) "LOWER LEVEL"

Fuel tank capacity 49L (12.9 U.S.gals.)

PERIODIC SERVICE46

ENGLISH

A Fuel blend differs from season to season for the best

seasonal engine performance. To prevent engine
performance troubles such as vapor lock or hard
starting, use fuel within the season in which the fuel is
purchased.

A Infrequent use of the engine during a season can

make fuel stale in the fuel tank of the machine. Stale
fuel condition can cause engine performance troubles
by varnish and plugged carburetor components.

A Seal the fuel storage container tightly and store it out

of sunlight and heat to prevent fuel degradation.

A Condensation in the fuel tank may occur because of

various operating or environmental conditions. To
reduce condensation and avoid affecting machine
operation, fill the fuel tank at the end of daily
operations.

A Do not use old fuel.

[Use of alcohol mixed gasoline (Gasohol)]

Use "gasohol" only when the ethanol additive is less than
10% of the fuel. The use of methanol additive is not
recommended. For the best results, use unleaded fuel
with a minimum of 87 octane.

BChecking and Cleaning Radiator Screen

and Bonnet Screen to Prevent
Overheating

To avoid serious injury or death:
A Engine components can get extremely hot from

operation. To prevent severe burns, do not
touch these areas while the engine is running,
or immediately after it is turned off.
Never operate the engine without heat shields
or guards.

To avoid personal injury:
A Be sure to stop the engine and remove the key

before cleaning.

A The air intake area must be clear of debris to prevent

the engine from overheating.

Daily or after every 5 hours of operation, check to be sure
the radiator screen and the bonnet screen are clean.
Dirt or chaff on the radiator screen, bonnet screen or
radiator decrease cooling performance.

1. Remove the radiator screen and the bonnet screen,
and remove all foreign material.

2. Remove the dust from between the fins and the tube.

3. Tighten the fan drive belt as necessary. For this, refer
to "EVERY 100 HOURS" in "PERIODIC SERVICE"
section.

4. If the scale forms in the tube, clean with the scale
inhibitor or its equivalent.

5. Each time the bonnet screen is covered with grass
during operation, rub it off the screen with the hand.
Check the radiator screen from time to time if grass
accumulates.

6. If the dust or chaff has accumulated inside of the
bonnet, remove the radiator screen and clean inside
completely.
After cleaning, replace the radiator screens properly.

7. Check the radiator for dust or chaff build up.
If the dust or chaff has accumulated in the radiator,
clear with air pressure (not to exceed 205 kPa (2.1 kgf/
cm , 30 psi)) or a hose.

(1) Fuel tank cap
(2) Fuel tank filler neck
(3) Empty space
(4) Max. fuel level

(C) Clearance
(Fuel level is under the filler neck.)

47PERIODIC SERVICE

ENGLISH

BChecking Tire Pressure

To avoid serious injury:
A Do not attempt to mount a tire on a rim. This

should be done by a qualified person with the
proper equipment.

A Always maintain the correct tire pressure.

Inflation pressure in front tires rises quickly
when using compressed air.
Do not inflate tires above the recommended
pressure shown in the Operator's Manual.

A Do not use tires larger than specified.

BInflation Pressure

Though the inflation pressure is factory-set to the
prescribed level, it naturally drops slowly in the course of
time. Thus, check it and inflate as necessary.

(1) Radiator screen

(1) Bonnet screen

Tire sizes

Recommended Inflation

Pressure

Front

15 x 6.0 - 6,

(Semi-pneumatic

Non Flat Tire) Rib

- - -

Rear

26 x 12.0 - 12,

4PR Turf

120 kPa

(1.2 kgf/cm , 17psi)

(1) Ground (A) "INSUFFICIENT"

(B) "NORMAL"
(C) "EXCESSIVE"

PERIODIC SERVICE48

ENGLISH

BChecking Transmission Fluid Level

To avoid personal injury:
A Allow the transmission case to cool down

sufficiently when cleaning its surface.

1. Park the machine on a flat surface, lower the
implement to the ground and shut off the engine and
remove the key.
Allow the machine to idle for 1-3 minutes, and then
check fluid.

2. Raise and lock the operator's seat.

3. To check the oil level, draw out the dipstick, wipe it
clean, replace it, and draw it out again. Check to see
that the oil level lies between the two notches.
If the level is too low, add the new oil to the prescribed
level at the oil inlet.
(See "LUBRICANTS AND FUEL" in "MAINTENANCE"
section.)

A If oil level is low, do not run engine.

Add the new oil to the prescribed level at the oil inlet.

BChecking Coolant Level

To avoid personal injury:
A Do not remove the radiator cap when the

engine is hot. Then loosen cap slightly to the
stop to relieve any excess pressure before
removing cap completely.

Check the coolant level daily for both the radiator and the
recovery tank before starting engine.

1. Remove the radiator cap and check to see that the
coolant level is just below the fill port.

2. Check to see that the coolant level is between the
"FULL" and "LOW" marks of recovery tank.

3. When the coolant level drops due to evaporation, add
water only up to just below the fill port of the radiator
and the full level of the recovery tank.
In case of leakage, add anti-freeze and water in the
specified mixing ratio up to the full level.
(See "Flushing Cooling System and Changing
Coolant" in "EVERY 1 YEAR" in "PERIODIC
SERVICE" section.)

4. Check radiator hoses for wear, cracks, bubbles or
leaks. If any such are founded, repair immediately.
(See "Replacing Radiator Hose" in "EVERY 2 YEARS"
in "PERIODIC SERVICE" section.)

A If the radiator cap has to be removed, follow the

caution above and securely retighten the cap.

A Use clean, distilled water and anti-freeze to fill the

radiator and the recovery tank.

A If water should leak, consult your local KUBOTA

Dealer.

(1) Oil level dipstick (A) Oil level is acceptable
(2) Oil plug and breather cup within this range.

(1) Recovery tank
(2) Radiator cap

(A) "FULL"
(B) "LOW"

49PERIODIC SERVICE

ENGLISH

BLubricating All Grease Fittings

To avoid personal injury:
A Be sure to stop the engine and remove the key

before greasing.

Grease the following location.

BChecking Movable Parts

If any of the movable parts, such as levers and pedals, is
not smoothly moved because of rust or anything sticky, do
not attempt to force it into motion.
In the above case, remove the rust or the sticky thing, and
apply oil or grease on the relevant spot.
Otherwise, the machine may get damaged.

(1) Mower universal joint

(1) Spindle shaft
(2) Belt tension pulley
(3) Belt tension pivot

(1) Spindle shaft
(2) Belt tension pulley
(3) Belt tension pivot

PERIODIC SERVICE50

ENGLISH

EVERY 50 HOURS

BSafety Devices

The Safety Devices in your machine are designed to
protect you while operating. Please check these Safety
Devices periodically - daily is best - to test function of the
Safety Devices before operation.

To avoid personal injury:
A Do not allow anyone near the machine while

testing.

A If the machine does not pass one of the

following tests, do not operate the machine.
See your local KUBOTA Dealer.

A Sit on operator's seat for all tests except for

Test 1.

A Check the following tests before operating the

machine.

C Check the safety switches
Test 1 (OPERATOR NOT ON THE SEAT)

1. Securely set the parking brake.

2. Shift the PTO lever to "DISENGAGE" (OFF) position.

3. Set the motion control levers to the "NEUTRAL LOCK"
position.

4. Turn the key switch to "START" position.

5. The engine must not crank.

Test 2 (OPERATOR ON THE SEAT)

1. Do not set the parking brake. (release it from test 1)

2. Shift the PTO lever to "DISENGAGE" (OFF) position.

3. Set the motion control levers to the "NEUTRAL LOCK"
position.

4. Turn the key switch to "START" position.

5. The engine must not crank.

Test 3 (OPERATOR ON THE SEAT)

1. Securely set the parking brake.

2. Shift the PTO lever to "DISENGAGE" (OFF) position.

3. Grasp the motion control levers and move then inward
from "NEUTRAL LOCK" position to "NEUTRAL"
position and then release the levers.

4. Turn the key switch to "START" position.

5. The engine must not crank.

Test 4 (OPERATOR ON THE SEAT)

1. Securely set the parking brake.

2. Shift the PTO lever to "ENGAGE" (ON) position.

3. Set the motion control levers to the "NEUTRAL LOCK"
position.

4. Turn the key switch to "START" position.

5. The engine must not crank.

Test 5 (OPERATOR ON THE SEAT)

1. Start the engine.

2. Keep the parking brake securely set.

3. Shift the PTO lever to "DISENGAGE" (OFF) position.

4. Grasp the motion control levers and move then inward
from "NEUTRAL LOCK" position to "NEUTRAL"
position and then release the levers.

5. The engine must shut off after a short time delay.

A For this test only, the engine will shut off in a few

seconds.

Test 6 (OPERATOR ON THE SEAT)

1. Start the engine.

2. Do not set the parking brake.

3. Shift the PTO lever to "DISENGAGE" (OFF) position.

4. Grasp the motion control levers and move them
inward from "NEUTRAL LOCK" position to
"NEUTRAL" position and then release the levers.

5. Stand up. (Do not get off the machine.)

6. The engine must shut off.

Test 7 (OPERATOR ON THE SEAT)

1. Start the engine.

2. Do not set the parking brake.

3. Shift the PTO lever to "ENGAGE" (ON) position.

4. Stand up. (Do not get off the machine.)

5. The engine must shut off.

A If the engine cranks Test 1 through 4, consult your

local KUBOTA Dealer to have the unit checked before
operation.

(1) Parking brake lock pedal
(2) Motion control lever
(3) Key switch
(4) PTO lever

51PERIODIC SERVICE

ENGLISH

BChecking Gear Box Oil Level

To avoid personal injury:
A Always stop the engine and remove the key

before checking oil.

1. Park the machine on a flat surface and lower the
mower to the ground.
To check the oil level, loosen the check plug and check
to see if the oil level is in the range of the check plug
port.
If the level is too low, add new oil to the prescribed
level at the oil inlet.
(See "LUBRICANTS AND FUEL" in "MAINTENANCE"
section.)

2. After checking, reinstall the check plug and oil inlet
plug securely.

1. Park the machine on a flat surface and lower the
mower to the ground.
To check the oil level, loosen the oil inlet plug with
gauge, wipe it clean, reinstall it and loosen it again.
Check to see if the oil level is between the notch and
tip.
If the level is too low, add new oil to the prescribed
level at the oil inlet.
(See "LUBRICANTS AND FUEL" in "MAINTENANCE"
section.)

2. After checking, reinstall the oil inlet plug with gauge
securely.

If serial numbers of mower are as indicated below
RCK60P-327Z:40000 and below
RCK72P-332Z:20000 and below

(1) Drain plug
(2) Check plug
(3) Oil inlet plug
(4) Gear case
(5) Check plug port

(A) Oil level is acceptable within
this range.
(B) Oil level

If serial numbers of mower are as indicated below
RCK60P-327Z:40001 and above
RCK72P-332Z:20001 and above

(1) Drain plug
(2) Oil inlet plug with gauge
(3) Seal washer
(4) Gear case

(A) Oil level is acceptable within
this range.
(B) Oil level

PERIODIC SERVICE52

ENGLISH

BGreasing

To avoid personal injury:
A Be sure to stop the engine and remove the key

before greasing.

Apply a small amount of multipurpose grease to the
following points every 50 hours:
If you operated the machine in extremely wet and muddy
conditions, lubricate grease fittings more often.

(1) Front axle (LH, RH)
(2) Front wheel (LH, RH)

(1) Parking brake lock pedal

(1) Front lift arm
(2) Snap pin
(3) Hinge pin

(A) "PULL"

53PERIODIC SERVICE

ENGLISH

(1) Front lift arm
(2) Snap pin
(3) Hinge pin

(A) "PULL"

(1) Machine universal joint
(2) Engine
(3) Radiator

PERIODIC SERVICE54

ENGLISH

BOiling

(1) Seat adjuster

(1) Motion control lever pivot bushing (LH, RH)

(1) Motion control lever contact position (LH, RH)

(1) Throttle cable (oil)
(2) Choke cable (oil)

(1) Throttle cable (oil)

(1) Choke cable (oil)

55PERIODIC SERVICE

ENGLISH

EVERY 100 HOURS

BChanging Engine Oil

To avoid personal injury:
A Be sure to stop the engine and remove the key

before changing the oil.

A Allow engine to cool down sufficiently; oil can

be hot and may cause burns.

1. To change the used oil, remove the drain plug at the
bottom of the engine and drain the oil completely. The
used oil can be drained out more easily if the engine is
warm.

2. Fill with the new oil up to the upper notch on the
dipstick.

3. To check the oil level. Remove the dipstick, wipe it
clean, insert it and draw it out again. Check to see that
the oil level is between the two marks.

BChecking Spark Plug Condition & Gap

To avoid serious injury:
A Do not check sparking of the spark plug with it

removed, fire may occur.

Remove the spark plugs, check condition, and reset the
gap or replace with new plugs as necessary.

1. Open the hood.

2. Before removing spark plugs, clean the area around
the base of the plug to keep dirt and debris out of the
engine.

3. Remove the spark plug wires from spark plugs.

4. Use a spark plug wrench to remove the spark plugs.

5. Remove plugs and check its condition.
Replace the plug if worn or reuse is questionable.

6. Inspect spark plugs for cracked porcelain, pitted
electrodes, or other wear and damage. Replace the
spark plug if necessary.

A Do not clean the spark plug in a machine using

abrasive grit. Some grit could remain in the spark plug
and enter the engine, which may cause extensive
wear and damage.

A Make sure that the spark plug wires are inserted to

original position securely after checking.

A Missing connecting the spark plug wires causes high

temperature on catalyst in muffler.

(1) Drain plug

(1) Spark plug

Spark plug NGK BKR4E

PERIODIC SERVICE56

ENGLISH

7. Check the gap using a wire feeler gauge. Adjust the
gap from 0.6 to 0.7 mm (0.024 to 0.028 in.) by carefully
bending the ground electrode.

8. Reinstall the spark plug into the cylinder head.

BCleaning Air Cleaner Primary Element

1. Remove the rubber band.

2. Remove the air cleaner cover and primary element.

3. Clean the primary element:
(1) When dry dust adheres to the element, blow

compressed air from the inside, turning the
element. Pressure of compressed air must be
under 205 kPa (2.1 kgf/cm , 30 psi).

(2) When carbon or oil adheres to the element, soak

the element in detergent for 15 minutes then wash
it several times in water, rinse with clean water
and dry it naturally. After element is fully dried,
inspect inside of the element with a light and
check if it is damaged or not.

4. Replace air cleaner primary element:
Once yearly or after every sixth cleaning, whichever
comes first.

A Check to see if the evacuator valve is blocked with

dust.

A The air cleaner uses a dry element, never apply oil.
A Do not run the engine with filter element removed.
A Be sure to refit the cover with the arrow (on the rear

of cover) upright. If the cover is improperly fitted,
evacuator valve will not function and dust will adhere
to the element.

A Do not touch the secondary element except in cases

where replacing is required.

C Evacuator Valve

Open the evacuator valve once a week under ordinary
conditions - or daily when used in a dusty place - to get rid
of large particles of dust and dirt.

Tightening torque

24.5 to 29.4 N-m

(18.1 to 21.7 lbf-ft)

(1) Rubber band
(2) Secondary (safety) element
(3) Primary element
(4) Cover
(5) Evacuator valve

57PERIODIC SERVICE

ENGLISH

BChecking Fuel Lines

To avoid personal injury:
A Be sure to stop the engine and remove the key

when attempting to make the following checks
and changes.

A Never fail to check the fuel lines periodically.

The fuel lines are subject to wear and aging.
Fuel may leak out onto the running engine,
causing a fire.

The fuel line connections should be checked annually or
every 100 service hours, whichever comes first.

1. The fuel line is made of rubber and ages regardless of
service period.

2. If the fuel line and clamps are found damaged or
deteriorated, replace them.

3. Check the fuel filter, if it is clogged by debris or
contaminated with water, replace it.

4. If the dust or chaff has accumulated around the fuel
filter, remove them by hand or air blow.

A When the fuel line is disconnected for maintenance or

repair, close both ends of the fuel line with a piece of
clean cloth or paper to prevent dust and dirt from
entering. In addition, particular care must be taken not
to admit dust and dirt into the fuel pump. Entrance of
even a small amount dust or dirt causes premature
wear and malfunction of the fuel pump and carburetor
components.

(1) Bolt (A) Right rear wheel

(L) "LOOSEN"

(1) Pipe clamps
(2) Fuel line
(3) Fuel pump
(4) Fuel filter

(A) Right rear wheel

(1) Pipe clamps
(2) Fuel line
(3) Fuel filter
(4) One way valve
(5) Three way joint

(A) Right fuel tank
(B) Area around fuel filter

(1) Pipe clamps
(2) Fuel line

(3) One way valve
(4) Fuel filter

PERIODIC SERVICE58

ENGLISH

(1) Pipe clamps
(2) Fuel filter

(1) Pipe clamps
(2) Fuel line

(A) Left fuel tank

(1) Pipe clamps
(2) Fuel line

(1) Pipe clamps
(2) Fuel line

(3) Two way valve
(4) Carbon canister

(1) Separator
(2) Fuel line
(3) Pipe clamps

(1) Pipe clamps
(2) Two way valve

59PERIODIC SERVICE

ENGLISH

BAdjusting Fan Drive Belt Tension

To avoid personal injury:
A Be sure to stop the engine and remove the key

before checking belt tension.

If the fan drive belt becomes loose, the engine may
overheat. To adjust, loosen bolts and move the dynamo
outward to tighten the belt. After adjustment, securely
tighten the bolts.

Moderate belt tension:
The belt should deflect approx. 6 mm (0.24 in.) when the
center of the belt is depressed with finger pressure of 98N
(10kgf, 22 lbs).

(1) Separator
(2) Fuel line
(3) Pipe clamps

(1) Fan drive belt
(2) Tension bolt
(3) Dynamo
(4) Adjusting bolt

(A) Approx. 6 mm (0.24 in.)
(M) "MOVE"

PERIODIC SERVICE60

ENGLISH

BAdjusting Parking Brake

To avoid personal injury:

A Park the machine on a firm and level surface.
A Stop the engine and chock the wheels before

checking or adjusting.

A Wrong adjustment may cause machine damage.

(1) Check brake spring

1. Place the motion control levers to the "NEUTRAL
LOCK" position.

2. Be sure to chock the rear wheels.

3. Apply the parking brake to the lock position.

4. Check the length of the brake springs on both sides.

5. If the length of the brake spring is not correct, adjust it.
(See "Adjustment of brake spring length" in the next
page.)

6. Release the parking brake completely.

7. Hold the brake rod lightly.

8. Check the brake spring play.

9. If the brake spring play is not correct, adjust it.
(See "Adjustment of brake spring play" in the next
page.)

(A): Proper brake spring length
with the brake applied to the
lock position

115 to 117 mm

(4.53 to 4.61 in.)

(1) Brake rod
(2) Brake spring
(3) Lock nut

(A) "Parking brake spring length"

(B): Proper brake
spring play

The spring must have play.
Reference: 0.5 to 1.0 mm
(0.02 to 0.04 in.)

(1) Brake rod
(2) Brake spring
(3) Lock nut

(A) "Hold the brake rod"
(B) "Parking brake spring play"

61PERIODIC SERVICE

ENGLISH

C Adjustment of brake spring length

1. Place the motion control lever to the "NEUTRAL
LOCK" position.

2. Apply the parking brake to the lock position.

3. Loosen the lock nuts.

4. Adjust the spring length to the recommendation.

5. Lock the nuts.

6. Check the brake spring play to the recommendation.
If there is no play, adjust the brake spring play again.
(See "Adjustment of brake spring play" below.)

7. Adjust the other side spring to the same dimension.

C Adjustment of brake spring play

1. Place the motion control lever to the "NEUTRAL
LOCK" position.

2. Be sure to chock the rear wheels.

3. Release the parking brake completely.

4. Loosen the lock nuts.

5. Hold the brake rod by hand.

6. Tighten the nut to the correct space between the end
of the spring and the nut.

7. Lock the nuts.

8. Adjust the other side spring to the same dimension.

(2) Check on the slope

1. Place the machine on a 17 ramp.

2. Apply the parking brake.

3. Place the motion control levers in "NEUTRAL LOCK"
position and shut off the engine.

4. Check that the machine does not move.

A For parking brake test purposes, only use 17 ramp.

BBattery Condition

To avoid the possibility of battery explosion:
For the refillable type battery, follow the
instructions below.
A Do not use or charge the refillable type battery

if the fluid level is below the LOWER (lower limit
level) mark.
Otherwise, the battery component parts may
prematurely deteriorate, which may shorten the
battery's service life or cause an explosion.
Check the fluid level regularly and add distilled
water as required so that the fluid level is
between the UPPER and LOWER levels.

To avoid personal injury:
A Never remove the vent cap while the engine is

running.

A Keep electrolyte away from eyes, hands and

clothes. If you are spattered with it, wash it
away completely with water immediately and
get medical attention.

A Wear eye protection and rubber gloves when

working around battery.

Mishandling the battery shortens the service life and adds
to maintenance costs.

The original battery is a maintenance-free, non­accessible type battery.
If the battery is weak, the engine will be difficult to start
and the lights will become dim. It is important to check the
battery periodically.

(A) 17 ramp

(1) Battery
(2) Ground cable

(+): Positive terminal
(-): Negative terminal

PERIODIC SERVICE62

ENGLISH

C Battery Charging

To avoid serious injury or death:
A When the battery is being activated, hydrogen

and oxygen gases in the battery are extremely
explosive. Keep open sparks and flames away
from the battery at all times, especially when
charging the battery.

To avoid personal injury:
A When charging battery, ensure that the vent

caps are securely in place (if equipped).

A When disconnecting the cables from the

battery, start with the negative terminal first.
When connecting the cables to the battery,
start with the positive terminal first.

A Never check battery charge by placing a metal

object across the posts.
Use a voltmeter or hydrometer.

(For accessible maintainable type batteries with
removable vent caps.)

1. Make sure each electrolyte level is at the bottom of
vent wells, if necessary add distilled water in a well­ventilated area.

2. The water in the electrolyte evaporates during
recharging. Liquid shortage damages the battery.
Excessive liquid spills over and damages the machine
body.

3. To slow charge the battery, connect the battery
positive terminal to the charger positive terminal and
the negative to the negative, then recharge in the
standard fashion.

4. A boost charge is only for emergencies. It will partially
charge the battery at a higher rate and in a short time.
When using a boost-charged battery, it is necessary to
recharge the battery as soon as possible.
Failure to do this will shorten the battery's service life.

5. When the specific gravity of electrolyte reaches 1.27-

1.29 charge has completed.

6. When exchanging an old battery with new one, use a
battery of equal specification shown in
"SPECIFICATIONS".

(For non-accessible maintenance-free type batteries.)
Maintenance-free, non-accessible batteries are designed
to eliminate the need to add water. Yet the volume of
electrolyte above plates may eventually become depleted
due to abnormal conditions such as high heat or improper
regulator setting. Use a voltmeter to check the state of
charge. (See reference chart below to determine if
charging is necessary.)

BAdjusting Throttle Cable

1. Move the throttle lever to the top position.

(1) Vent well
(2) Separator
(3) Electrolyte

(A) "HIGHEST LEVEL"
(B) "LOWEST LEVEL"

Battery voltage Reference state of charge

12.6 100% (Full charge)

12.4 75%

12.2 50%

12.0 25%

11.8 0%

(1) Throttle lever

63PERIODIC SERVICE

ENGLISH

2. Make sure a speed control lever (2) is touching the
restricting bolt (1).
If not, loosen the rear nut (6) and tighten the front nut
(5) so that the speed control lever (2) would touch the
restricting bolt (1).
Then tighten the rear nut (6).

BChecking Carbon Canister Air Filter

Check the carbon canister air filter every 100 hours of
operation. (more often under extremely dusty or dirty
conditions.)

To avoid personal injury:
A Always disengage PTO, stop the engine, set

the parking brake and remove the key.

1. Remove the cover and remove the carbon canister air
filter.

2. Check to see if the carbon canister air filter is worn out,
damaged or dirty.

3. If the air filter is dirty, wash the air filter in warm water
with detergent. Then rinse the air filter thoroughly until
all traces of detergent are eliminated. Squeeze out
excess water. (do not wring.) Allow the air filter to air
dry. Do not use high pressure air to clean filter.

4. If the air filter is worn out, damaged or too dirty to wash
clean, replace it with a new one.

5. Reinstall the carbon canister air filter and secure it with
the cover.

A Operating in dusty condition may require more

frequent maintenance than above.

(1) Restricting bolt
(2) Speed control lever
(3) Throttle cable
(4) Throttle lever
(5) Front nut
(6) Rear nut

(A) "TIGHTEN"

(1) Canister air filter
(2) Cover
(3) Carbon canister

(A) Air port

PERIODIC SERVICE64

ENGLISH

EVERY 150 HOURS

BChanging Gear Box Oil

To avoid personal injury:
A Be sure to stop the engine and remove the key

before changing the oil.

1. To drain the used oil, remove the drain plug and oil
inlet plug at the gear box and drain the oil completely
into the oil pan.

2. After draining reinstall the drain plug.

3. Remove the oil level check plug.

4. Fill with the new oil up to the check plug port.
(See "LUBRICANTS AND FUEL" in "MAINTENANCE"
section.)

5. After filling reinstall the check plug and oil inlet plug
securely.

1. To drain the used oil, remove the drain plug and oil
inlet plug with gauge at the gear box and drain the oil
completely into the oil pan.

2. After draining reinstall the drain plug.

3. Remove the oil level check plug.

4. Fill with the new oil up to the check plug port.
(See "LUBRICANTS AND FUEL" in "MAINTENANCE"
section.)

5. After filling reinstall the check plug and oil inlet plug
with gauge securely.

If serial numbers of mower are as indicated below
RCK60P-327Z:40000 and below
RCK72P-332Z:20000 and below

(1) Drain plug
(2) Check plug
(3) Oil inlet plug
(4) Gear case
(5) Check plug port

(A) Oil level is acceptable within
this range.
(B) Oil level

If serial numbers of mower are as indicated below
RCK60P-327Z:40001 and above
RCK72P-332Z:20001 and above

(1) Drain plug
(2) Check plug
(3) Oil inlet plug with gauge
(4) Gear case
(5) Check plug port

(A) Oil level is acceptable within
this range.
(B) Oil level

65PERIODIC SERVICE

ENGLISH

EVERY 200 HOURS

BReplacing Engine Oil Filter

To avoid personal injury:
A Be sure to stop the engine and remove the key

before changing the oil and the oil filter.

A Allow engine to cool down sufficiently; oil can

be hot and may cause burns.

1. The oil filter must be changed every 200 service hours.

2. Apply a slight coat of oil onto the rubber gasket of new
filter.

3. Tighten the filter quickly until it contacts the mounting
surface. Tighten filter by hand an additional 1/2 turn
only.

4. After the new filter has been replaced, the engine oil
level normally lowers a little. Add engine oil to proper
level. Check for oil leaks around filter gasket.

A To prevent serious damage to the engine,

replacement element of the recommended type must
be used. Use only a genuine KUBOTA filter or its
equivalent.

BChecking Radiator Hose and Clamp

Check to see if radiator hoses are properly fixed every 200
hours of operation or six months, whichever comes first.

1. If hose clamps are loose or water leaks, tighten clamps
securely.

2. Replace hoses and tighten hose clamps securely. If
radiator hoses are swollen, hardened or cracked, then
replace them immediately.

(1) Engine oil filter

(1) Radiator core
(2) Radiator hose

PERIODIC SERVICE66

ENGLISH

BChecking Hydraulic Hose

To avoid personal injury:
A Be sure to stop the engine, remove the key, and

relieve pressure before checking and replacing
the hydraulic hose.

A Allow the transmission case to cool down

sufficiently; oil can be hot and may cause
burns.

A Escaping hydraulic fluid under pressure has

sufficient force to penetrate the skin causing
serious personal injury. Before disconnecting
lines, be sure to relieve all pressure. Before
applying pressure to the system, make sure all
connections are tight and that lines, pipes, and
hoses are not damaged.

Check to see if hydraulic hoses are properly fixed every
200 hours of operation.

1. Check to see that all lines and hose clamps are tight
and not damaged.

2. If hoses and clamps are found worn or damaged,
replace or repair them at once.

3. Fluid escaping from pinholes may be invisible. Use a
piece of cardboard or wood to search for suspected
leaks: do not use hands. Use safety goggles or other
eye protection.
If injured by escaping fluid, see a medical doctor at
once. Serious infection or reaction will result if proper
medical treatment is not administered immediately.
This fluid can produce gangrene or severe allergic
reaction.

(1) Mower lift cylinder hose

(1) Cardboard
(2) Hydraulic line
(3) Magnifying glass

67PERIODIC SERVICE

ENGLISH

BReplacing Transmission Oil Filter [HST]

To avoid personal injury:
A Be sure to stop the engine and remove the key

before changing the oil filter.

A Allow transmission case to cool down

sufficiently; oil can be hot and may cause
burns.

1. The oil filter must be changed every 200 service hours.

2. Place an oil pan underneath the oil filter. (Do not drain
oil.)

3. Remove the oil filter by using the filter wrench.

4. Apply a slight coat of oil onto the gasket of new filter.

5. Tighten the filter quickly until it contacts the mounting
surface. Tighten filter by hand an additional 1/2 turn
only.

6. After the new filter has been replaced, the
transmission fluid level normally lowers a little. Add
fluid to proper level. Check for oil leaks around filter
gasket.

A To prevent serious damage or premature failure to the

hydraulic system, use only a KUBOTA genuine filter.

BAdjusting the Motion Control Lever Pivot

To avoid personal injury:
A Be sure to stop the engine and set the parking

brake to "ON" before checking.

1. Set the motion control lever in "NEUTRAL" position.

2. Slightly move the lever back and forth and measure
the free travel at the top of lever stroke.

3. If the proper free travel limits are exceeded, remove
the fender and retighten only the upper nut to specified
torque.

A If the motion control lever pivot bolt is maladjusted,

motion control may be difficult.

(1) Transmission oil filter [HST]

(1) Transmission oil filter [HST] (2) Gasket

Proper lever free travel

2 to 15 mm (0.08 to 0.59 in.)

on the lever

(1) Motion control lever
(2) Bolt, Nut

(A) "FREE TRAVEL"

Tightening torque

18.6 to 20.6 N-m

(1.9 to 2.1 kgf-m,

13.7 to 15.2 lbf-ft)

PERIODIC SERVICE68

ENGLISH

BChecking Intake Air Line

1. Check to see that hoses and hose clamps are tight and
not damaged.

2. If hoses and clamps are found worn or damaged,
replace or repair them at once.

EVERY 400 HOURS

BChanging Transmission Fluid and Rear

Axle Gear Case Oil (RH and LH)

To avoid personal injury:

A Park the machine on a firm and level surface.
A Be sure to stop the engine and remove the key

before changing or checking the oil.

A Allow transmission case to cool down

sufficiently; oil can be hot and may cause
burns.

The fluid in the transmission case is also used for the
hydrostatic drive system.

1. To drain the transmission oil, place oil pan underneath
the transmission case and the rear axle gear case
(RH&LH) and remove the drain plug at the bottom of
the transmission case and the rear axle gear case
(RH&LH).

2. After draining, reinstall the drain plugs.

3. Fill with UDT or SUPER UDT hydrostatic transmission
fluid or its equivalent up to the upper line of the oil level
dipstick.

A It takes time to have the oil poured from the

transmission case reach the rear axle case (RH&LH).
Pour the regulated amount of oil slowly.

4. After running the engine for a few minutes, stop it and
check the oil level again; add oil to the prescribed
level.

A Operate only at low rpms immediately after changing

the transmission fluid and filter.
Keep the engine at medium speed for a few minutes to
insure proper lubrication of all parts so there is no
damage to transmission.

(1) Hose
(2) Clamp

(1) Drain plug

69PERIODIC SERVICE

ENGLISH

BReplacing Hydraulic Oil Filter

To avoid personal injury:
A Be sure to stop the engine and remove the key

before changing the oil filter.

A Allow transmission case to cool down

sufficiently; oil can be hot and may cause
burns.

1. The oil filter must be changed every 400 service hours.

2. To drain the transmission oil, place oil pan underneath
the transmission case and the rear axle gear case
(RH&LH) and remove the drain plug at the bottom of
the transmission case and the rear axle gear case
(RH&LH).

3. After draining, reinstall the drain plugs.

4. Remove the oil filter by using the filter wrench.

5. Apply a slight coat of oil onto the gasket of new filter.

6. Tighten the filter quickly until it contacts the mounting
surface. Tighten filter by hand an additional 1/2 turn
only.

7. After the new filter has been replaced, the
transmission fluid level normally lowers a little. Add
fluid to proper level. Check for oil leaks around filter
gasket.

(1) Drain plug
(2) Rear axle gear case LH

(1) Oil level dipstick
(2) Oil plug and breather cup

(A) Oil level is acceptable
within this range.

(1) Oil filter

(1) Oil filter (2) Gasket

PERIODIC SERVICE70

ENGLISH

A To prevent serious damage or premature failure to the

hydraulic system, use only a KUBOTA genuine filter.

BReplacing Fuel Filter

Consult your local KUBOTA Dealer for this service.

EVERY 500 HOURS

BAdjusting Engine Valve Clearance

If you do not have the proper tools and/or are not
mechanically proficient, consult your local KUBOTA
Dealer for this service.

EVERY AFTER 1000 HOURS

BCleaning Combustion Chamber

If you do not have the proper tools and/or are not
mechanically proficient, consult your local KUBOTA
Dealer for this service.

EVERY 1 YEAR

BReplacing Air Cleaner Primary Element

and Secondary Element

(See "Cleaning Air Cleaner Primary Element" in "EVERY
100 HOURS" in "PERIODIC SERVICE" section.)

A To prevent serious damage to the engine, use only a

KUBOTA genuine filter.

[How to remove the secondary element]

1. While turning slightly, pull out the secondary element.

(1) Secondary element

71PERIODIC SERVICE

ENGLISH

BFlushing Cooling System and Changing

Coolant

To avoid personal injury:
A Do not remove the radiator cap when the

engine is hot. Then loosen cap slightly to the
stop to relieve any excess pressure before
removing cap completely.

1. Stop the engine and let cool down.

2. To drain the coolant, open the radiator drain cock and
remove the radiator drain plug and remove radiator
cap. The radiator cap must be removed to completely
drain the coolant.

3. After all coolant is drained, close the drain cock and
install the drain plug.

4. Fill with clean water and cooling system cleaner.

5. Follow directions of the cleaner instruction.

6. After flushing, fill with clean water and anti-freeze until
the coolant level is just below the fill port on the
radiator.
Install the radiator cap securely.

7. Fill with coolant up to the "FULL" mark on the recovery
tank.

8. Start and operate the engine for a few minutes.

9. Stop the engine and let cool.

10. Check coolant level of recovery tank, add coolant if
necessary, and install the drain plug.

A Do not start engine without coolant.
A Use clean, distilled water and anti-freeze to fill the

radiator and recovery tank.

A When the anti-freeze is mixed with water, the anti-

freeze mixing ratio must be less than 50%.

A Securely tighten radiator cap. If the cap is loose or

improperly fitted, water may leak out and the engine
could overheat.

(1) Drain plug
(2) Recovery tank
(3) Radiator cap

(A) "FULL"
(B) "LOW"

(1) Drain cock

PERIODIC SERVICE72

ENGLISH

BAnti-freeze

To avoid personal injury:
A When using anti-freeze, put on some protection

such as rubber gloves (Anti-freeze contains
poison.).

A If you should drink anti-freeze, throw up at

once and seek medical attention.

A When anti-freeze comes in contact with the

skin or clothing, wash it off immediately.

A Do not mix different types of Anti-freeze. The

mixture can produce chemical reaction
causing harmful substances.

A Anti-freeze is extremely flammable and

explosive under certain conditions. Keep fire
and children away from anti-freeze.

A When draining fluids from the engine, place

some container underneath the engine body. If
swallowed anti-freeze is harmful.

A Do not pour waste onto the grounds, down a

drain, or into any water source.

A Observe the relevant environmental protection

regulations when disposing of anti-freeze.

If it freezes, coolant can damage the cylinders and
radiator. If the ambient temperature falls below 0
(32 ) or before a long-term storage, drain cooling
system and mix fresh water with long-life coolant (LLC)
and fill the radiator and recovery tank with the mixture to
the proper level.

1. LLC comes in several types. Use ethylene glycol (EG)
type for this engine.

2. Before adding LLC-mixed with water, fill the radiator
with fresh water and empty it again.
Repeat this procedure 2 or 3 times to clean the inside
of the engine cooling system.

3. Mix the LLC with water in the percentage (%) for a
target temperature. When mixing, stir it up well, and
then fill into the radiator and the reserve tank.

4. The procedure for the mixing of water and antifreeze
differs according to the make of the antifreeze and the
ambient temperature. Refer to SAE J1034 and SAE
J814c standard.

A When the antifreeze is mixed with water, the

antifreeze mixing ratio must be less than 50%.

* At 1.013 x 10 Pa (760 mmHg) pressure (atmospheric).

A higher boiling point is obtained by using a radiator
pressure cap which permits the development of pressure
within the cooling system.

5. Adding the LLC
(1) Add only water if the mixture reduces in amount

by evaporation.

(2) If there is a mixture leak, add the LLC of the same

manufacturer and type in the same mixture
percentage.

6. When the LLC is mixed, do not add any radiator
cleaning agent. The LLC contains anticorrosive agent.
If mixed with the cleaning agent, sludge may build up,
adversely affecting the engine parts.

7. Kubota's genuine LLC has a service life of 2 years. Be
sure to change the coolant liquid every 2 years.

A The above data represent industry standards that

necessitate a minimum glycol content in the
concentrated antifreeze.

A When the coolant level drops due to evaporation, add

water only to keep the antifreeze mixing ratio less than
50%. In case of leakage, add antifreeze and water in
the specified mixing ratio before filling into the radiator.

Vol %

Anti-freeze

Freezing Point Boiling Point*

40 -24 -12 106 222
50 -37 -34 108 226

* Never mix LLC of two different manufacturers.

(Different brands may have different additive
components, and the engine may fail to
perform as specified.)

73PERIODIC SERVICE

ENGLISH

EVERY 2 YEARS

BReplacing Hydraulic Hose

Consult your local KUBOTA Dealer for this service.

BReplacing Fuel Lines

Consult your local KUBOTA Dealer for this service.

BReplacing Radiator Hose

See "Checking Radiator Hose and Clamp" in "EVERY 200
HOURS" in "PERIODIC SERVICE" section.

BReplacing Mower Gear Box Oil-Seal

Consult your local KUBOTA Dealer for this service.

BReplacing Intake Air Line

Consult your local KUBOTA Dealer for this service.

BReplacing Carbon Canister Air Filter

(See "Checking Carbon Canister Air Filter" in "EVERY
100 HOURS" in "PERIODIC SERVICE" section.)

BReplacing One Way Valve

Consult your local KUBOTA Dealer for this service.

BReplacing Engine Breather Hose

Consult your local KUBOTA Dealer for this service.

SERVICE AS REQUIRED

BReplacing Fuses

Replacement of the fuse

1. Raise the operator's seat.

2. Remove the blown fuse.

3. Place a new fuse of the same capacity in position.

A If the new fuse happens to blow out within a short time,

contact your dealer for inspection and repair. Never
"jump" the fuse with wire or foil, or install a larger
capacity fuse than is recommended.

(1) Fuse location

(2) Slow blow fuse

PERIODIC SERVICE74

ENGLISH

C Protected circuit

BChecking and Replacing Blade

To avoid personal injury:

A Be sure to stop the engine and remove the key.
A Blades may be sharp. When you handle blades,

wear heavy gloves or wrap end of blade with a
rag.

C Checking

The blade cutting edges should be kept sharp at all times.
Sharpen the cutting edges, if they resemble blade (B).
Replace the blades if they appear similar to blade (C).

C Replacing

1. Dismount the mower deck from the machine.
(See "DISMOUNTING THE MOWER DECK" in
"MOWER MOUNTING" section.)
Then turn it over to expose the blades.

2. Wedge a block of wood between the blade and mower
housing or use a box wrench over the pulley nut to
prevent the spindle from rotating while removing the
blade bolts; loosen the blade bolt as illustrated.

A Use the proper metric size box or socket wrench to

tighten or loosen the blade mounting bolt.

FUSE NO.

CAPACITY

(A)

Protected circuit

(1)

15 Charge system
10 Engine stop
15 Main system
15 Aux. outlet
10 Control system
20 (Work light)*

(2)

Slow blow fuse

50A

Check circuit against
wrong battery connection

*Option: The fuse should be in only when the work light

is attached.

(A) Charge system
(B) Engine stop
(C) Main system
(D) Aux. outlet
(E) Control system
(F) (Work light)
(G) Spare

(A) New blade

(B) Worn blade
(C) Cracked blade

75PERIODIC SERVICE

ENGLISH

3. To sharpen the blades yourself, clamp the blade
securely in a vise.
Use a large mill file and file along the original bevel
until sharp.

4. To check the blade for balance, place a small rod
through the center hole. If the blade is not balanced,
file the heavy side of the blade until balance is
achieved.

5. Pass the spline boss through the blade and 2 cup
washers, and tighten the bolt.

A Make sure that the cup washer is not flattened out or

worn; this cause blade to slip excessively.
Replace the 2 cup washers if either is damaged.

6. Before checking or replacing the blade, wipe grass
and mud off the top and inside of the mower.
Especially clean up the inside of the belt cover,
because otherwise the belt life will be reduced.

A Tighten the three blade bolts to 103 to 118 N-m (10.5

to 12.0 kgf-m, 76.0 to 87.0 lbf-ft) of torque.

A The blade bolts have Right hand threads. Turn them

counterclockwise to loosen.

A To prolong the service life of the blades, reposition

them as shown in the figure below periodically.

(1) Block (A) "LOOSEN"

(1) Spindle holder
(2) Blade
(3) 2-Cup washers
(4) Spline boss
(5) Bolt
(6) Spindle guard

(1) LH blade
(2) Center blade
(3) RH blade

PERIODIC SERVICE76

ENGLISH

BMower Belt Replacement

1. Remove the mower deck from the machine according
to the procedure "DISMOUNTING THE MOWER
DECK".

2. Remove the left and right hand shield from the mower
deck.

3. Clean around the gear box.

4. Remove the belt from the tension pulley.

5. Remove the right hand bracket which mounts the gear
box to the mower deck and slip the belt over the top of
the gear box.

6. To install a new belt, reverse the above procedure.

A Tighten bracket bolts securely 77.6 to 90.2 N-m (8.0 to

9.2 kgf-m, 57.1 to 66.5 lbf-ft).

BBleeding Fuel System

Air must be removed:

1. When the fuel filter or lines are removed.

2. When tank is completely empty.

3. After the machine has not been used for a long period
of time.

C Bleeding procedure is as follows:

1. Fill the fuel tank with appropriate fuel.

2. Turn the key switch to the "ON" position and hold it for
about 10 seconds.

3. Start the engine and run for about 30 seconds, and
then stop the engine.

(1) Tension pulley
(2) Bracket (RH)
(3) Belt

77ADJUSTMENT

ENGLISH

ADJUSTMENT

MOTION CONTROL LEVER

To avoid personal injury:

A Park the machine on a firm and level surface.
A If it is necessary to run the engine in an

enclosed area, use a gas tight exhaust pipe
extension to remove the fumes.

A Always try to work in a well-ventilated area.
A Lift up and secure with jack stands or blocking

the rear of the machine, do not run the machine
while adjusting.
Remove rear wheels.

A Do not adjust only one of the following

adjustments; exclude "MOTION CONTROL
LEVER ALIGNMENT".
They are interlinked.

A If you feel you are unable to make the following

adjustments correctly and safely, please
contact your local KUBOTA Dealer.

A Right and left motion control levers can be adjusted

independently.

BHST NEUTRAL

1. Lift-up and secure with jack stands or blocking the rear
of the machine frame.

2. Remove both rear wheels.

3. Start the engine, and run at maximum speed.

4. Place the motion control lever in the "NEUTRAL
LOCK" position.

5. If the rear axle is still turning, follow following steps to
adjust the neutral position.

6. Pull the latch lever and raise the operator's seat.

7. Remove the connector from the seat safety switch,
then temporarily install a jumper wire across the
terminals in the connector of the wire harness.

To avoid personal injury:

A Do not operate the machine with a jumper wire.
A If you feel you are unable to make the following

adjustments correctly and safety, please
contact your local KUBOTA Dealer.

8. Loosen the lock nut of the motion control rod.
Adjust the motion control rod until the rear axle rotation
stops.

9. Lengthen the rod by 1/2 turn and then tighten the lock
nut.
Place the motion control lever to the reverse position,
and move them to the forward slowly.

10.Place the lever in the "NEUTRAL LOCK" position, and
check that the rear axle does not rotate.
If the axle does not stopped rotating, adjust the "HST
NEUTRAL" again.

11.Adjust the other side "HST NEUTRAL" equally.

12.After adjustment, make sure to stop the engine
immediately.

(1) Motion control rod
(2) Lock nut

ADJUSTMENT78

ENGLISH

BMOTION CONTROL LEVER NEUTRAL

POSITION

1. Lift-up and secure with jack stands or blocking the rear
of the machine frame.

2. Remove both rear wheels.

3. Start the engine, and run at maximum speed.

4. Pull the lever to the reverse maximum position and
release the lever.

5. Measure the axle rotation.

6. Loosen the lock nut and adjust the speed control bolt
length so that the axle rotation would stop.

7. Tighten the lock nut.

8. Check the axle rpm again.
If it is not correct, adjust again.

9. Adjust the other side equally.

10.After adjustment, make sure to stop the engine
immediately.

BMAXIMUM SPEED (FORWARD)

Consult your local KUBOTA Dealer for this service.

BMOTION CONTROL LEVER ALIGNMENT

C Check the alignment

Check the gap and space between the levers, at the
maximum forward position.

If positions of the control levers are unequal, an
adjustment is necessary.

To avoid personal injury:

A Park the machine on a firm and level surface.
A Stop the engine, remove the key and apply the

parking brake.

(1) Lock nut
(2) Speed control bolt

(L) 50 mm (2.0 in.)

(1) Motion control lever
(2) Guide plate

(A) "NEUTRAL" position

(hands off)

Recommendation

Gap: 0 to 2 mm

(0 to 0.08 in.)

Space:10 to 20 mm

(0.4 to 0.8 in.)

(A) "GAP"
(B) "SPACE"

79ADJUSTMENT

ENGLISH

C Aligning the control levers

1. Stop the engine and apply the parking brake.

2. Loosen the screws and remove the lever guide.

Lever position (High or Low)

3. Remove the nuts and select the motion control lever
position, high or low.

4. Tighten the nuts.

Lever alignment (Right and Left)

5. Loosen the nuts.

6. Slide both levers forward or rearward to desired
position within tab slots until levers are aligned.

7. Tighten the nuts.

8. Install the lever guide with the screws and tighten them
securely.

A If the ends of the levers strike against each other while

in "NEUTRAL" position, move the levers outward to
the "NEUTRAL LOCK" position and carefully bend
them outward.
Move them back to the "NEUTRAL" position and
check for the recommended space.

MOWER DECK LEVEL

BANTI-SCALP ROLLERS

To avoid personal injury:

A Park the machine on a firm and level surface.
A Apply the parking brake.
A Stop the engine and remove the key.
A Wait for all moving parts to stop.

A The flattest cut can be achieved by having the anti-

scalp rollers adjusted off the ground.
Check anti-scalp roller adjustments each time the
mower deck cutting height is changed.
It is recommended that all the anti-scalp rollers be kept
off the ground to minimize scuffing.

1. Check the machine tire pressure.
Inflate tires to the correct pressure. (See "TIRES AND
WHEELS" section.)

2. Start the engine.

3. Raise up the mower deck to the transport position.
(Also the top end of the lift.)

4. Turn the cutting height control dial to adjust height.

5. Lower the mower deck.

Front side anti-scalp roller

6. Adjust height of the front side anti-scalp roller by
replacing the collar (collar is raised and lowered) or
shifting the pin to approximately 19 mm (3/4 in.)
between rollers and ground.
Adjust both side rollers to the same height.

(1) Motion control lever
(2) Nut
(3) Tab slot

(A) High position

(1) Pin (H) 19 mm (3/4 in.)

ADJUSTMENT80

ENGLISH

Rear side anti-scalp roller

7. Adjust height of the rear side anti-scalp roller by
shifting the bolt to approximately 19 mm (3/4 in.)
between rollers and ground.
Adjust both side rollers to the same height.

BLEVEL MOWER DECK (Side-to-Side)

To avoid personal injury:

A Park the machine on a firm and level surface.
A Apply the parking brake.
A Disengage PTO (OFF).
A Stop the engine, remove the key and remove

the mower universal joint while checking or
adjusting the level of the mower deck.

A Check the machine tire pressure.

Inflate tires to the correct pressure.
(See "TIRES AND WHEELS" section.)

C Checking level (Side-to-Side)

A Mower deck anti-scalp rollers should not contact the

ground.

1. Raise the mower deck to the transport position. (Also
the top end).

2. Turn the cutting height set dial to the 3 in. cutting
height position.

3. Lower the mower deck.

4. Position the right mower blade in the Side-to-Side
position.

5. Measure from outside blade tip to the level surface
with a short ruler or leveling gauge.

Reference

A There is a difference of the blade height between on

the concrete and ground.

6. Check that the left side blade is same height.
The difference between both measurements should
be less than 3 mm (1/8 in.).

7. If the Side-to-Side adjustment is not within the given
tolerance, adjustment is necessary.

(1) Collar
(2) Washer
(3) Set pin

(H) 19 mm (3/4 in.)

(1) Bolt (H) 19 mm (3/4 in.)

Height of the blade
at the concrete surface

76 mm (3 in.)

Side-to-Side adjustment Less than 3 mm (1/8 in.)

81ADJUSTMENT

ENGLISH

C Adjusting level (Side-to-Side)

1. Raise up the mower deck to the transport position.
(Also the top end).

2. Turn the cutting height set dial to the 3 in. cutting
height position.

3. Place 51 mm (2 in.) height wood blocks under each
side of the mower deck.
Anti-scalp rollers must not rest on the wood block.

4. Lower the mower deck.

5. Position mower blade in the Side-to-Side position.

6. Loosen the lock nuts of the right side of the machine.

7. Adjust the cutting height fine tuning bolts to set 76 mm
(3 in.) height.
Front and rear side bolts must be adjusted.

8. Lock the nuts.

9. Adjust the left side equally.

10.Check the side-to-side level and if it is not level,
adjustment is necessary.

BLEVEL MOWER DECK (Front-to-Rear)

To avoid personal injury:

A Park the machine on a firm and level surface.
A Engage the parking brake.
A Disengage PTO.
A Stop the engine, remove the key and remove

the mower universal joint while checking or
adjusting the level of the mower deck.

A Check the machine tire pressure.

Inflate tires to the correct pressure.
(See "TIRES AND WHEELS" section.)

C Checking level (Front-to-Rear)

A Mower deck anti-scalp rollers should not contact the

ground.

1. Raise the mower deck to the transport position. (Also
the top end).

2. Turn the cutting height set dial to the 3 in. cutting
height position.

3. Lower the mower deck.

4. Position the right mower blade in the Front-to-Rear
position.

5. Measure from the right front blade tip to the level
surface with a short ruler or leveling gauge.

6. Turn the blade 180 and measure from right rear blade
tip to the level surface.

7. Check that the left side blade has the same dimension.
The difference between both measurements should
be less than 6 mm (1/4 in.).
Front side must be lower than rear side.

8. If the Front-to-Rear adjustment is not within the given
tolerance, adjustment is necessary.

(1) Cutting height fine tuning bolt
(2) Lock nut

(A) Front
(B) Rear

ADJUSTMENT82

ENGLISH

C Adjusting level (Front-to-Rear)

1. Raise up the mower deck to the transport position.
(Also the top end).

2. Turn the cutting height set dial to the 3 in. cutting
height position.

3. Place 51 mm (2 in.) height wood blocks under each
side of the mower deck.
Anti-scalp rollers must not rest on the wood block.

4. Lower the mower deck.

5. Loosen the lock nuts of the front side of the machine.

6. Adjust the cutting height fine tuning bolts to set 76 mm
(3 in.) height.
Both front side bolts must be adjusted.

7. Lock the nuts.

8. Adjust the other side equally.

A The difference between both measurements should

be less than 6 mm (1/4 in.).
Front side must be lower than rear side.

9. Check the front-to-rear level and if it is not level,
adjustment is necessary.

Front-to-Rear

adjustment

Less than 6 mm (1/4 in.)

Front side must be lower

than Rear side.

(1) Cutting height fine tuning bolt
(2) Lock nut

83ADJUSTMENT

ENGLISH

GENERAL TORQUE SPECIFICATION

American standard cap screws

with UNC or UNF threads

Metric cap screws

SAE grade No.

GR.5

GR.8

Property class

Class 8.8

Class 10.9

1/4

(lbf-ft)
(N-m)

(kgf-m)

8 - 9.6

10.7 - 12.9

1.11 - 1.33

12 - 14.4

16.1 - 19.3

1.66 - 1.99

M6

(lbf-ft)

(N-m)

(kgf-m)

7.2 - 8.3

9.81 - 11.3

1.0 - 1.15

5/16

(lbf-ft)
(N-m)

(kgf-m)

17 - 20.5

23.1 - 27.8

2.35 - 2.84

24 - 29

32.5 - 39.3

3.31 - 4.01

M8

(lbf-ft)

(N-m)

(kgf-m)

17.4 - 20.2

23.6 - 27.4

2.4 - 2.8

21.7 - 25.3

29.4 - 34.3

3.0 - 3.5

3/8

(lbf-ft)
(N-m)

(kgf-m)

35 - 42

47.5 - 57.0

4.84 - 5.82

45 - 54

61.0 - 73.2

6.22 - 7.47

M10

(lbf-ft)

(N-m)

(kgf-m)

35.5 - 41.2

48.1 - 55.8

4.9 - 5.7

44.9 - 52.1

60.8 - 70.5

6.2 - 7.2

1/2

(lbf-ft)
(N-m)

(kgf-m)

80 - 96

108.5 - 130.2

11.07 - 13.29

110 - 132

149.2 - 179.0

15.22 - 18.27

M12

(lbf-ft)

(N-m)

(kgf-m)

57.2 - 66.5

77.5 - 90.1

7.9 - 9.2

76.0 - 86.8
103 - 117

10.5 - 12.0

9/16

(lbf-ft)
(N-m)

(kgf-m)

110 - 132

149.2 - 179.0

15.22 - 18.27

160 - 192

217.0 - 260.4

22.14 - 26.57

M14

(lbf-ft)

(N-m)

(kgf-m)

91.2 - 108
124 - 127

12.6 - 15.0

123 - 144
167 - 196

17.0 - 20.0

5/8

(lbf-ft)
(N-m)

(kgf-m)

150 - 180

203.4 - 244.1

20.75 - 24.91

220 - 264

298.3 - 358.0

30.44 - 36.53

M16

(lbf-ft)

(N-m)

(kgf-m)

145 - 166
196 - 225

20.0 - 23.0

192 - 224
260 - 303

26.5 - 31.0