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
Hours
Cutting Height
Fuel-Level
Parking Brake
Engine-Stop
Engine-Run
Starter Control
Power Take-Off Clutch Control-Off Position
(Disengaged)
Power Take-Off Clutch Control-On Position
(Engaged)
California Proposition 65
WARNING
Engine exhaust, some of its constituents,
certain vehicle components and fluids,
contain or emit chemicals known to the
State of California to cause cancer and birth
defects or other reproductive harm.
Mower-Lowered position
Mower-Raised position
Fast
Slow
Engine Speed Control
Battery
Oil Pressure
Choke
This spark ignition system complies with Canadian ICES-002.
FOREWORD
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this manual to become outdated.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.
ENGLISH
3
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.
3
3
3
IMPORTANT :
NOTE :
DANGER :
WARNING :
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.
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. BEFORE OPERATING
-1SAFE OPERATION
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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 and machine safety labels
before attempting to start and operate the machine.
3. Pay special attention to the safety 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.
(1) ROPS
(2) Seat belt
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.
SAFE OPERATION-2
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
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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.
2. OPERATING
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.
-3SAFE OPERATION
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 tipÂover 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.
3. USING THE PTO
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:
ZG222A/ZG227A 2530 rpm at engine 3200 rpm
4. USING THE LIFT LINK
1. Use lift link only with authorized attachments designed
for lift link usage.
5. TRANSPORTING
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.
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SAFE OPERATION-4
6. SERVICING AND STORAGE
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.
9. Keep first aid kit and fire extinguisher handy at all
times.
10.Do not attempt to mount a tire on a rim unless qualified
to do so and all proper safety precautions are followed.
11.Always maintain the correct tire inflation pressure. Do
not inflate tires above the recommended pressure
shown in the Operator's Manual.
(1) Fuel tank cap
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.
12.Provide adequate support when changing wheels.
13.Make sure that wheel nuts and bolts have been
tightened to the specified torque.
14.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.
15.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) Cardboard
(2) Hydraulic line
(3) Magnifying glass
16.Do not make adjustments or repairs with the engine
running.
17.Keep machine free of grass, leaves, or other debris
build-up.
18.Do not change the engine governor setting or
overspeed the engine.
19.Do not run a machine inside a closed area.
20.Mower blades are sharp and can cut your hands. Wrap
the blade(s) or wear gloves, and use extra caution
when servicing them.
21.Keep nuts and bolts, especially blade attachment
bolts, tight and keep equipment in good condition.
22.Never tamper with safety devices. Check their
operation for proper function regularly.
23.Waste products such as used oil, fuel, coolant, brake
fluid, and batteries, can harm the environment, people,
pets and wildlife. Please dispose of properly.
24.Do not use beverage containers for waste fluids or
other products. Someone, particularly children, may
drink them by mistake.
25.Securely support machine or any machine elements
with stands or suitable blocking before working
underneath. For your safety do not rely or hydraulically
supported devices, they may leak down, suddenly
drop or be accidently lowered.
26.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.
-5SAFE OPERATION
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.
(1) Battery
(2) Ground cable
(+): Positive terminal
(-): Negative terminal
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.
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SAFE OPERATION-6
7. DANGER, WARNING AND CAUTION LABELS
ENGLISH
-7SAFE OPERATION
ENGLISH
SAFE OPERATION-8
ENGLISH
-9SAFE OPERATION
ENGLISH
SAFE OPERATION-10
ENGLISH
8. CARE OF DANGER, WARNING, AND CAUTION LABELS
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.
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.
1SERVICING OF MACHINE
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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
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(1) Mower identification plate
(2) Mower serial No.
(1) Mower identification plate
(2) Mower serial No.
(1) ROPS serial No.
SPECIFICATIONS
ModelZG222SAZG222AZG227AZG227LA
ModelKGZ770-MA3KGZ770-MA2
Max. engine power (Gross)kW (HP)16.4 (22) (*1)20.1 (27) (*1)
Total lengthmm (in.)890 (35.0)880 (34.6)925 (36.4)963 (37.9)
Total widthmm (in.)1550 (61.0)1552 (61.1)1710 (67.3)1911 (75.2)
Total heightmm (in.)340 (13.3)
6IMPLEMENT LIMITATIONS
IMPLEMENT LIMITATIONS
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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.]
ZG222SA, ZG222A
ZG227A, ZG227LA
Maximum loading weight
Implement weight WMaximum total weight
Front axle WfRear axle Wr
145 kg (319 lbs.)510 kg (1124 lbs.)140 kg (308 lbs.)655 kg (1444 lbs.)
7INSTRUMENT PANEL AND CONTROLS
INSTRUMENT PANEL AND CONTROLS
ENGLISH
ILLUSTRATED CONTENTSILLUSTRATED CONTENTS
(1)Parking brake pedal.............................11, 22(10) Cutting height control dial.....................28
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.
9MOWER MOUNTING
ENGLISH
H: 40 mm (1.57 in.)W: 300 mm (11.8 in.)
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.
H: 40 mm (1.57 in.)
L: 1400 mm (55.1 in.)
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 [Only for RCK60P]
For easy installation set the anti scalp roller as shown
below.
RCK60P: Two places front
W: 300 mm (11.8 in.)
(1) Anti scalp roller (Front, pin shift type)
(2) Anti scalp roller (Rear, bolt shift type)
MOWER MOUNTING10
7. Adjust the lift pedal to the lowest position and pull
down the lift links.
8. Attach the lift links to the mower deck with attaching
ENGLISH
hardware.
(1) Lift link
(2) Clevis pin, Plain washer, Snap ring
9. Install universal joint.
Pull back the coupler of the universal joint.
Push the universal joint onto the PTO shaft until the
coupler locks.
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.
A Tug the universal joint backward and forward to make
sure it is locked securely.
(1) Universal joint
(2) Coupler
(A) "PULL"
OPERATING THE ENGINE
STARTING THE ENGINE
11OPERATING THE ENGINE
ENGLISH
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.
1. Sit on the operator's seat.
2. Apply the parking brake.
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.
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.
(A) "DEPRESS"
To release the parking brake:
Depress the brake pedal and release slowly with your
right foot without pressing the parking brake lock
pedal.
OPERATING THE ENGINE12
3. Make sure that the PTO lever is in the
ENGLISH
"DISENGAGED" (OFF) position.
(1) PTO lever"ENGAGED" (ON)
"DISENGAGED" (OFF)
4. Place the motion control levers in the
"NEUTRAL LOCK" position.
5. Release the hydraulic lift control pedal
to the "DOWN" position.
(1) Hydraulic lift control pedalDepressing: "UP"
Release: "DOWN"
6. Set the throttle lever as follows.
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.
(1) Motion control lever (LH)
(2) Motion control lever (RH)
(A) "NEUTRAL LOCK"
Position
(B) "NEUTRAL" Position
(held by hands)
(C) "CREEP" Position
(hands off)
(D) "FORWARD"
(E) "REVERSE"
(1) Throttle lever
(2) Choke knob
(A) Pull out: "ON" position
(B) Push in: "OFF" position
"FAST"
"SLOW"
7. Insert the key into the key switch. Turn
the key switch to the "START" position
and release the key to the "ON" position
when the engine starts.
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.
13OPERATING THE ENGINE
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 warmÂup 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
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"
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.
: "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.
OPERATING THE ENGINE14
CHECK DURING OPERATING
While operating, make the following checks to see that all
the parts are functioning normally.
ENGLISH
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".
BFuel Gauge
Be careful not to empty the fuel tank. Otherwise air may
enter the fuel system.
If this should happen, the fuel system should be bled.
(See "SERVICE AS REQUIRED" in "PERIODIC
SERVICE" section.)
(1) Fuel gauge(E) "EMPTY"
(F) "FULL"
(1) Easy checker (TM)
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.
A Do not refuel over "F". Fill the tank only to the bottom
of the filler neck in the fuel tank.
A Fill the fuel on a level ground.
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.
15OPERATING THE ENGINE
BHour Meter
This meter gives readings for the hours the machine has
been operated for.
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.
(1) Hour meter
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
ENGLISH
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:
Ambient temperatureWarm-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)More than 15 minutes
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.
OPERATING THE ENGINE16
JUMP STARTING
ENGLISH
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 7, 6 and 5)
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 "jumpÂstarting" a low or dead battery condition.
(1) Dead battery
(2) Jumper cables
(3) Engine block or frame
(4) Helper battery
A This machine has a 12 volt negative (-) ground starting
system.
A Use only same voltage for jump starting.
Connect cables in numerical order.
Disconnect in reverse order after
use.
17OPERATING THE ENGINE
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.
5. Turn the carburetor fuel valve to "STOP" (CLOSE)
position.
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. Turn the carburetor fuel valve to "STOP"
(CLOSE) position and wait until the engine stops. Then
contact your local KUBOTA Dealer immediately.
ENGLISH
(1) Carburetor fuel valve(A) "STOP" (CLOSE)
(B) "RUN" (OPEN)
(C) "DRAIN"
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.
(1) Carburetor fuel valve(A) "STOP" (CLOSE)
(B) "RUN" (OPEN)
(C) "DRAIN"
To avoid personal injury:
A Do not operate the machine until the engine
stop system is repaired.
18OPERATING THE MACHINE
OPERATING THE MACHINE
ENGLISH
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, of course, 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 400 hours of operation, change the
transmission fluid. (See "EVERY 400 HOURS" in
"PERIODIC SERVICE" section.)
After the first 50 hours of operation, change the oil filter
cartridge. (See "EVERY 200 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.
19OPERATING THE MACHINE
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.
(1) ROPS
4. Align lock pin holes and insert both lock pins and
secure them with the hair pins.
ENGLISH
(1) Lock pin
(2) Hair pin
(3) Knob bolt
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
OPERATING THE MACHINE20
BTo Raise the ROPS to Upright Position
1. Remove both hair pins and lock pins.
ENGLISH
(1) Lock pin
(2) Hair pin
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.
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) Nut
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.
(1) Lock pin
(2) Hair pin
(3) Knob bolt
STARTING
21OPERATING THE MACHINE
1. Adjust the operator's position and
engage the seat belt.
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.
ENGLISH
(1) Seat belt
2. Raise the implement.
BHydraulic Lift Control Pedal
The hydraulic lift control pedal is used to raise the mower.
To raise the mower, keep depressing the pedal.
To lower it, release the pedal.
(1) Armrest
(2) Fore-aft adjusting handle
C How to adjust the operator's seat
A Fore-aft adjust
Pull the seat adjusting lever and slide the seat.
A After adjusting the operator's seat, be sure to check to
see that the seat is securely locked.
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.
(1) Hydraulic lift control pedal "DOWN": Release the pedal
"UP": Keep depressing the
pedal
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
continuously while operating the machine.
OPERATING THE MACHINE22
3. Accelerate the engine.
ENGLISH
BThrottle Lever
Moving the throttle lever backward decreases the engine
speed and moving it forward increases the engine speed.
(1) Throttle lever"INCREASE"
"DECREASE"
4. Unlock the parking brake.
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.
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.
23OPERATING THE MACHINE
Stop position
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.)
(1) Motion control levers(A) "NEUTRAL LOCK" position
(B) "NEUTRAL" position
(held by hand)
ENGLISH
A To make restarting on the slopes easier, this machine
has the "CREEP" position.
If you release hand pressure from the levers in the
operating position, the levers move to the "CREEP"
position automatically.
OPERATING THE MACHINE24
Operating position
Machine speed and steering is controlled by the motion
ENGLISH
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 Creep position (Moves the machine slowly
forward)
A To make restarting on the slopes easier, this machine
has the "CREEP" position.
A If hand pressure is released from the motion control
levers after moving them from the "NEUTRAL LOCK"
position with the engine running, the levers move to
the "CREEP" forward position by spring pressure.
When hand pressure is released from the motion
control levers while in the reverse position with the
engine running, the levers will return through neutral
to the "CREEP" forward position by spring pressure.
A The machine moves forward at creep speed, when
the levers are in the "CREEP" 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 the slopes
To avoid personal injury:
A Do not stop or change directions on the slopes.
These operations could cause loss of the
machine traction or control.
Starting procedure on the slopes is different
from the usual start mode on a flat surface,
understand how to re-start on the slopes and
use extra caution.
(1) Motion control levers(A) "CREEP" position
(B) "NEUTRAL" position
(held by hand)
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.
If a situation occurs where it is necessary to stop and reÂstart on a slope, refer to the following operational steps.
How to re-start on the 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.
(Releasing your grasp on the levers allows spring
pressure to automatically position the levers in the
"CREEP" position.)
25OPERATING THE MACHINE
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 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.
ENGLISH
GENERAL LEFT TURN:
A Push right motion control lever further forward than the
left motion control lever. For forward travel to the left.
SHARP (ZERO) RIGHT TURN:
A Push left motion control lever forward and pull right
motion control lever rearward at the same time.
OPERATING THE MACHINE26
WORK LIGHT (OPTIONAL KIT)
ENGLISH
(1) Work light
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.
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 handling 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.
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.
(1) Chocks
TRANSPORTING
27OPERATING THE MACHINE
1. Transport the machine on a trailer.
A Turn the carburetor fuel valve to the "OFF"
position.
A Fasten the machine to the trailer.
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 Make sure to lift the mower by the hydraulic lift
control pedal.
A Move the lift lock lever in the "TRANSPORT LOCK"
position.
ENGLISH
(1) Lift lock lever: "LOCK"
: "UNLOCK"
28OPERATING THE MOWER
OPERATING THE MOWER
ENGLISH
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.
(1) Lift lock lever: "LOCK"
: "UNLOCK"
2. To set the cutting height, keep depressing the
hydraulic lift control pedal firmly to raise mower deck
to the top position. Make sure that the lift lock lever is
in unlock position. Adjust the cutting height control dial
to desired 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.
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.
(1) Cutting height control dial
(2) Hydraulic lift control pedal
4. Lower the mower deck by releasing the hydraulic lift
control pedal. 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
A Set position for recommended ground clearance 19 mm (3/4 in.).
ENGLISH
Cutting
height
inch (mm)
Position of
pins
Position of
bolts
Ground
clearance
mm (Ref.)
Pin
shift type
1.00" (25)1
1.25" (32)21312
1.50" (38)11919
1.75" (44)31325
2.00" (50)2
2.25" (58)41325
2.50" (64)3
2.75" (70)51325
3.00" (76)419(31) *2
3.25" (83)613(38) *3
3.50" (89)519 *1(44) *3
3.75" (95)713 *3(51) *3
4.00" (102)619 *3(57) *3
4.25" (108)713 *3(63) *3
4.50" (114)719 *3(70) *3
1
2
3
66
1919
1919
Bolt
shift type
4.75" (121)725 *3(76) *3
5.00" (127)731 *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.
31OPERATING THE MOWER
OPERATING MOWER
To avoid serious injury or death:
A Do not operate the mower without the
discharge deflector being in place properly.
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.
BStarting
ENGLISH
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)
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.
32TIRES AND WHEELS
TIRES AND WHEELS
ENGLISH
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.
Tire sizes
Recommended Inflation
Max. Pressure
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.
Front
Rear
(1) Ground(A) "INSUFFICIENT"
13 x 5.0 - 6,
4PR Rib
23 x 10.5 - 12,
4PR Turf
(B) "NORMAL"
(C) "EXCESSIVE"
270 kPa
(2.8 kgf/cm , 40psi)
140 kPa
(1.4 kgf/cm , 20psi)
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
*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.
ENGLISH
MAINTENANCE36
PERIODIC SERVICE CHART LABEL
ENGLISH
(1) Part No. K3272-6551- (ENGLISH)(2) Part No. K3272-6552- (SPANISH)
LUBRICANTS AND FUEL
37MAINTENANCE
Place
ZG222SAZG222AZG227A, ZG227LA
Fuel27 L (7.1 U.S. gals.)
Engine crankcase1.8 L (1.9 U.S.qts.)*12.0 L (2.1 U.S.qts.)*1
Transmission case
with filter & hose
Rear axle gear case
(RH &LH)
0.15 L
(0.16 U.S.qts.)
Mower gear box
-0.4 L (0.42 U.S.qts.)
GreasingNo. of greasing pointsCapacityType of grease
Front axle2Until grease
Front wheel2
Front lift arm2
Parking brake lock
pedal
Motion control lever
pivot bushing, and
contact position
Automobile unleaded or regular gasoline
Unleaded gasoline 87 octane or higher
Engine oil: API service
Classification SG, SH, SJ or higher
Above -18(0)...SAE10W-30 or 10W-40
Below 0(32).....SAE5W-20 or 5W-30
7.5 L (7.9 U.S.qts.)KUBOTA SUPER UDT-2 fluid*2
-KUBOTA SUPER UDT-2 fluid*2
SAE90 gear oil
(API service classification: more than GL-3)
overflows
1
6
Moderate amountOil
5
overflows
Lubricants
Multipurpose EP2 Grease
(NLGI Grade No.2)
Multipurpose EP2 Grease
(NLGI Grade No.2)
ENGLISH
Note *1 Oil amount when the oil level is at the upper level of the oil level gauge.
*2 The product name of KUBOTA genuine UDT fluid may be different from that in the Operator’s Manual depending
on countries or territories. Consult your local KUBOTA Dealer for further detail.
A To prevent serious damage to hydraulic systems, use only KUBOTA genuine fluid or its equivalent.
38MAINTENANCE
C Engine Oil:
A Oil used in the engine should have an American Petroleum Institute (API) service classification and proper SAE
ENGLISH
Engine Oil according to the ambient temperatures as shown above.
A Indicated capacity of oil is manufacture's estimate.
C Transmission oil:
A KUBOTA Super UDT-2: For an enhanced ownership experience, we highly recommend Super UDT-2 to be used
instead of standard hydraulic/transmission fluid.
Super UDT-2 is a proprietary KUBOTA formulation that deliveries superior performance and protection in all
operating conditions.
Regular UDT is also permitted for use in this machine.
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.
PERIODIC SERVICE
39PERIODIC SERVICE
ENGLISH
HOW TO OPEN THE HOOD AND STEP
BStep
To open the step, pull the grip.
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 lever sideward, and then open.
(1) Step
(2) Grip
(A) "PULL"
(1) Lever
(2) Hood
(1) Hood
(A) "RELEASE"
PERIODIC SERVICE40
HOW TO RAISE THE OPERATOR'S SEAT
C Raise
3. Raise the operator's seat to the "LOCK" position.
ENGLISH
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 rearward.
(1) Operator's seat
(2) Seat support rod
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) Latch lever(A) "PULL"
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.
41PERIODIC SERVICE
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 four screws of the lever guide.
2. Pull up the lever guide.
How to install the lever guide.
1. Install the lever guide.
2. Tighten the screws.
A If the lever cover is out of alignment with the motion
lever, move the lever cover to align it with the motion
lever.
LIFT-UP POINT
BFront side:
Hook nylon slings at the front frame.
Hoist the front frame with the nylon sling or jack up the
front frame.
ENGLISH
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.
(1) Lever guide
(2) Screw
(3) Lever cover
(1) Nylon sling
(2) Front frame
(1) Front frame
(2) Nylon sling
(3) Jack
(4) Wood block
PERIODIC SERVICE42
BRear side:
Hoist the rear frame with nylon slings. Or jack up the
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
Walking
around the
machine
Mower1Check all hardware.-
While sitting in
the operator's
seat
Turning the
key switch
"ON"
Damage of machine body, tightness
1
of all bolts, nuts and pins, etc.
2Fuel and oil leak-
3Tire pressure, wear and damage
4Engine oil level43
5Fuel level43
Air intake screen, engine cooling
6
area
7Transmission fluid level46
8Greasing50
9Brake play58
10Air cleaner primary element52
11Bottom dust cover44
12Machine body cleaning-
2Make sure all pins are in place-
3Mower deck cleaning-
Greasing
Universal joint
Three spindle shafts
4
Belt tension pulley
Belt tension pivot
Anti-scalp roller
5Oil leak48
6Make sure blade bolts are tight71
7Blades and belt wear or damage71
1Motion control lever-
2Parking brake-
3Other movable parts47
Performance of the Easy
1
Checker(TM) light
Ref.
Page
-
32
45
44
46
14
43PERIODIC SERVICE
Ref.
Page
-
47
-
Starting the
engine
Others
No.Check item
1Color of the exhaust fumes-
Check for abnormal noise and
2
vibration.
Safety devices.
If either of these do not operate
3
properly, contact your local KUBOTA
Dealer immediately.
Check the areas where previous
1
trouble was experienced.
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.
BChecking Amount of Fuel and Refueling
ENGLISH
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.
(1) Engine oil port
(2) Oil level dipstick
(A) "UPPER LEVEL"
(B) "LOWER LEVEL"
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.)
Check the fuel level. Take care that the fuel tank does not
become empty.
Fuel tank capacity27 L (7.1 U.S.gals.)
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.
PERIODIC SERVICE44
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
ENGLISH
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 Air Intake Screen
and Air Intake Area to Prevent
Overheating
To avoid personal injury:
A Be sure to stop the engine and remove the key
before cleaning.
A The air intake screen and 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 air intake screen and the air intake area are clean.
Dirt or chaff around the air intake screen and air intake
area or the engine cooling area decrease cooling
performance.
1. Open the hood and remove all foreign material.
2. Remove the dust and all foreign material from the
intake screen.
3. Undo the rubber hook and open the air intake screen.
(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.)
(1) Air intake screen
(2) Rubber hook
4. Remove the dust and all foreign materials from the air
intake area between the transmission and the engine
dust plate.
5. Each time the dust cover is covered with grass and
foreign materials during operation, rub it off the dust
cover with hand. Check the air intake area from time to
time if grass accumulates.
(A) "OPEN"
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.
45PERIODIC SERVICE
ENGLISH
(1) Air intake screen
(2) Engine dust plate
(3) Dust cover
(4) Bottom clean lever
6. If the dust or chaff has accumulated air intake area,
clean them completely by pushing down the bottom
clean lever several times.
When using the bottom clean lever, remove the lever
from the bracket.
After cleaning, make sure that the lever is replaced in
place.
(A) "PUSH DOWN"
(B) Bracket
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.
Recommended Inflation
Max. Pressure
270 kPa
(2.8 kgf/cm , 40 psi)
140 kPa
(1.4 kgf/cm , 20 psi)
Front
Rear
Tire sizes
13 x 5.0 - 6,
4PR Rib
23 x 10.5 - 12,
4PR Turf
(1) Ground(A) "INSUFFICIENT"
(B) "NORMAL"
(C) "EXCESSIVE"
PERIODIC SERVICE46
BChecking Transmission Fluid Level
ENGLISH
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.)
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.
(1) Mower universal joint
(1) Oil level dipstick
(2) Oil plug and breather cup
A If oil level is low, do not run engine.
Add the new oil to the prescribed level at the oil inlet.
(A) Oil level is acceptable
within this range.
(1) Spindle shaft
(2) Belt tension pulley
(3) Belt tension pivot
(4) Anti-scalp roller (Grease the bosses.)
47PERIODIC SERVICE
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.
ENGLISH
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.
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 them
inward from the "NEUTRAL LOCK" position to the
"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.
PERIODIC SERVICE48
Test 5 (OPERATOR ON THE SEAT)
1. Start the engine.
2. Keep the parking brake securely set.
ENGLISH
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. The engine must shut off after a short time delay.
BChecking Gear Box Oil Level
To avoid personal injury:
A Always stop the engine and remove the key
before checking oil.
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 7, consult your
local KUBOTA Dealer to have the unit checked before
operation.
If serial numbers of mower are as indicated below
RCK48S-222Z:all
RCK48P-222Z:30000 and below
RCK54P-227Z:30000 and below
RCK60P-227Z:30000 and below
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) Parking brake lock pedal
(2) Motion control lever
(3) Key switch
(4) PTO lever
(5) Seat switch
(1) Check plug
(2) Oil inlet plug
49PERIODIC SERVICE
If serial numbers of mower are as indicated below
RCK48P-222Z:30001 and above
RCK54P-227Z:30001 and above
RCK60P-227Z:30001 and above
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.
ENGLISH
(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
(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 SERVICE50
BGreasing
ENGLISH
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)
(3) Front lift arm (LH, RH)
(1) Parking brake lock pedal
(1) Motion control lever pivot bushing (LH, RH)
(2) Bushing
(1) Motion control lever contact position (LH, RH)
BOiling
(1) Lift control cable (oil)
51PERIODIC SERVICE
ENGLISH
(1) Machine universal joint
(1) Seat adjuster
(1) Choke cable (oil)
(2) Throttle cable (oil)
(1) Choke cable (oil)
(2) Throttle cable (oil)
PERIODIC SERVICE52
EVERY 100 HOURS
BChanging Engine Oil
ENGLISH
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.
BCleaning Air Cleaner Primary Element
1. Remove the air cleaner cover and primary element.
2. 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.
3. 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.
(1) Drain plug
2. Fill with the new oil up to the upper level on the
dipstick.
(1) Engine oil port
(2) Oil level 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.
(A) "UPPER LEVEL"
(B) "LOWER LEVEL"
(1) Secondary (safety) element
(2) Primary element
(3) Cover
(4) Evacuator valve
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.
BCleaning Engine Shroud Panel
To avoid personal injury:
A Make sure the engine is cool enough to touch
before removing shrouds and other
components.
A Always shield eyes and a face from air deposits
and objects.
1. Stop the engine and apply the parking brake.
2. Open the hood.
3. Pull the latch lever on the seat panel rearward.
4. Raise the seat to the "LOCK" position.
5. Loosen four bolts and remove the muffler cover.
6. Loosen two screws (right & left) and remove the fan
cover.
53PERIODIC SERVICE
ENGLISH
(1) Cover
(2) M6 bolt
8. Remove large debris around the cooling fin and then
blow off small debris with a compressed air. Pressure
of compressed air must be under 205 kPa (2.1 kgf/
cm , 30 psi).
(1) Fan cover
(2) Screw
7. Loosen four M6 bolts (right & left) and two M8 bolts
and remove the cover.
(1) Cover
(2) M6 bolt
(3) M8 bolt
(1) Cooling fin
9. Blow off the debris inside the fan cover as shown in the
figure. Pressure of compressed air must be under 205
kPa (2.1 kgf/cm , 30 psi).
(1) Fan cover
PERIODIC SERVICE54
10.Undo the rubber hook and open the air intake screen.
Remove the debris on the surface of the air intake area
ENGLISH
by hand and blow off small debris with compressed air.
Pressure of compressed air must be under 205 kPa
(2.1 kgf/cm , 30 psi).
Then clean them completely by pushing down the
bottom clean lever several times.
When using the bottom clean lever, remove the lever
from the bracket.
After cleaning, make sure that the lever is replaced in
place.
BCleaning Engine Oil Cooler Fins
[ZG227 only]
This engine is equipped with an oil cooler. The style of the
oil cooler is mounted on the blower housing. Pressure of
compressed air must be under 205 kPa (2.1 kgf/cm , 30
psi).
To avoid personal injury:
A Make sure the engine is cool enough to touch
before removing shrouds and other
components.
A Always shield eyes and a face from air deposits
and objects.
1. Stop the engine and apply the parking brake.
2. Loosen the two bolts for the engine oil cooler and
remove the connector.
(1) Air intake screen
(2) Engine dust plate
(3) Dust cover
(4) Bottom clean lever
(A) "PUSH DOWN"
(B) Bracket
11.Install the cover with six bolts and then the fan cover
with two screws.
12.Install the muffler cover with four bolts.
13.Pull up the seat support rod and release the "LOCK".
14.Lower the seat slowly to lock.
15.Close the hood.
(1) Oil cooler
(2) Bolt
(3) Connector
3. Pull out the engine oil cooler.
(1) Oil cooler
4. Remove large debris from both sides of the engine oil
cooler fin by hand, and then blow off small debris with
the compressed air. Pressure of compressed air must
be under 205 kPa (2.1 kgf/cm , 30 psi).
5. Remove the debris accumulated in the cooling air exit
of the plate.
(1) Plate(A) Cooling air exit
55PERIODIC SERVICE
BChecking Fuel Lines
ENGLISH
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 fuel filter bowl, if it is clogged by debris or
contaminated with water, replace it.
6. Put back the engine oil cooler in the original position,
tighten bolts and connect the connector.
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.
2. Loosen the ring screw and remove the fuel filter bowl.
3. Remove the element and rinse it with gasoline. If the
element is excessively dirty, replace it.
(1) Carburetor fuel valve
(2) Element
(3) Packing
(4) Fuel filter bowl
(5) Ring screw
(1) Carburetor fuel valve
(2) Drain port
(A) "STOP" (CLOSE)
(B) "RUN" (OPEN)
(C) "DRAIN"
PERIODIC SERVICE58
BAdjusting Parking Brake
ENGLISH
6. Release the parking brake completely.
7. Hold the brake rod lightly.
8. Check the brake spring play.
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.
(A): Proper brake spring length
with the brake applied to the
lock position
115 to 117 mm
(4.53 to 4.61 in.)
(B): Proper brake
spring play
(1) Brake rod
(2) Brake spring
(3) Lock nut
The spring must have play.
Reference: 0.5 to 1.0 mm
(0.02 to 0.04 in.)
(A) "Hold the brake rod"
(B) "Parking brake spring play"
9. If the brake spring play is not correct, adjust it.
(See "Adjustment of brake spring play" in the next
page.)
(1) Brake rod
(2) Brake spring
(3) Lock nut
(A) "Parking brake spring length"
5. If the length of the brake spring is not correct, adjust it.
(See "Adjustment of brake spring length" in the next
page.)
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.
59PERIODIC SERVICE
BBattery Condition
ENGLISH
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.
(A) 17 ramp
A For parking brake test purposes, only use 17 ramp.
The original battery is a maintenance-free, nonÂaccessible 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.
(1) Battery
(2) Ground cable
(+): Positive terminal
(-): Negative terminal
PERIODIC SERVICE60
C Battery Charging
ENGLISH
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 wellÂventilated area.
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.)
Battery voltageReference state of charge
12.6100% (Full charge)
12.475%
12.250%
12.025%
11.80%
(1) Vent well
(2) Separator
(3) Electrolyte
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.
(A) "HIGHEST LEVEL"
(B) "LOWEST LEVEL"
61PERIODIC SERVICE
BAdjusting Throttle Cable
1. Move the throttle lever to the top position.
(1) Throttle lever
2. Make sure a part (2) is touching the restricting bolt (1).
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 stop the engine, set the parking brake,
remove the key, and disengage PTO.
1. Open the air intake screen.
2. Remove the cover and remove the carbon canister air
filter.
ENGLISH
(1) Restricting bolt
(2) Part
(3) Bolt
(4) Throttle lever cable
(A) "PULL"
3. If not, loosen the bolt (3) and pull the throttle lever
cable (4) in direction of the arrow (A) so that the part
(2) would touch the restricting bolt (1).
And then tighten the bolt (3).
(1) Canister air filter
(2) Cover
(3) Carbon canister
(A) Air intake screen
(B) Air port
3. Check to see if the carbon canister air filter is worn out,
damaged or dirty.
4. 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.
5. If the air filter is worn out, damaged or too dirty to wash
clean, replace it with a new one.
6. Reinstall the carbon canister air filter and secure it with
the cover.
A Operating in dusty condition may require more
frequent maintenance than above.
PERIODIC SERVICE62
EVERY 150 HOURS
BChanging Gear Box Oil
ENGLISH
To avoid personal injury:
A Be sure to stop the engine and remove the key
before changing the oil.
If serial numbers of mower are as indicated below
RCK48S-222Z:all
1. To drain the used oil, remove the oil inlet plug at the
gear box, tilt the mower deck and drain the oil
completely into the oil pan.
2. Fill with the new oil up to the check plug port.
(See "LUBRICANTS AND FUEL" in "MAINTENANCE"
section.)
3. After filling reinstall the oil inlet plug and the check
plug.
If serial numbers of mower are as indicated below
RCK48P-222Z:30000 and below
RCK54P-227Z:30000 and below
RCK60P-227Z:30000 and below
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) Check plug
(2) Oil inlet plug
(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
63PERIODIC SERVICE
If serial numbers of mower are as indicated below
RCK48P-222Z:30001 and above
RCK54P-227Z:30001 and above
RCK60P-227Z:30001 and above
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.
EVERY 200 HOURS
BReplacing Engine Oil Filter
ENGLISH
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.
(1) Drain plug
(2) Check plug
(3) Oil inlet plug with gauge
(4) Gear case
(5) Check plug port
(1) Engine oil filter
(A) Oil level is acceptable within
this range.
(B) Oil level
PERIODIC SERVICE64
BChecking Spark Plug Condition & Gap
Remove the spark plugs, check condition, and reset the
ENGLISH
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. Disconnect the spark plug cap 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.
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.
(1) Spark plug cap and spark plug
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.
Recommended spark plugNGK BPR6HS
Tightening torque
9.8 to 19.6 N-m
(7.2 to 14.5 lbf-ft)
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.
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.
65PERIODIC SERVICE
ENGLISH
(1) Cardboard
(2) Hydraulic line
(3) Magnifying glass
(1) Mower lift cylinder hose
3. 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.
4. 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.
PERIODIC SERVICE66
BReplacing Transmission Oil Filter
ENGLISH
Cartridge
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 cartridge must be changed every 200
service hours.
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.
Proper lever free travel
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.
2 to 15 mm (0.08 to 0.59 in.)
on the lever
(1) Oil filter cartridge
(1) Oil filter cartridge(2) Gasket
2. Place an oil pan underneath the oil filter cartridge. (Do
not drain oil.)
3. Remove the oil filter cartridge 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 cartridge has been replaced, the
transmission fluid level normally lowers a little. Add
fluid to proper level. Check for oil leaks around filter
gasket.
(1) Motion control lever
(2) Bolt, Nut
Tightening torque
(A) "FREE TRAVEL"
18.6 to 20.6 N-m
(1.9 to 2.1 kgf-m,
13.7 to 15.2 lbf-ft)
67PERIODIC SERVICE
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.
(1) Hose
(2) Clamp
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 the oil pan
underneath the transmission case and remove the
drain plugs at the bottom of the transmission case.
ENGLISH
BCleaning Engine Shroud
Consult your local KUBOTA Dealer for this service.
(1) Drain plug of center case
2. After draining, open the air intake screen. Remove the
snap pin and push down the bottom clean lever to
open the dust cover; set the snap pin into the original
hole of the lever under the stay to keep the dust cover
open.
PERIODIC SERVICE68
ENGLISH
(1) Bottom clean lever
(2) Snap pin
(3) Stay
(A) Air intake screen
(B) Dust cover
(P) "PUSH DOWN"
3. Disassemble and clean the strainer and change the oil
filter cartridge. After reassembling, fill with UDT or
SUPER UDT hydrostatic transmission fluid, or its
equivalent.
(1) Transmission strainer(A) Bottom clean lever
(B) Dust cover
(1) Drain plug of axle case (on both sides)
(1) Transmission oil filter
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 the filter cartridge.
Keep the engine at medium speed for a few minutes to
insure proper lubrication of all parts so there is no
damage to the transmission.
(1) Oil level dipstick
(2) Oil plug and breather cup
(A) Oil level is acceptable
within this range.
69PERIODIC SERVICE
BCleaning Transmission Strainer
When changing the transmission fluid, disassemble and
rinse the strainer with nonflammable solvent to completely
clean off filings.
Check O-rings, replace if damaged, cracked or hardened.
When reassembling be careful not to damage the parts.
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.
ENGLISH
(1) Transmission strainer
(2) O-ring
(3) Center case cover
A Since the fine filings in the oil can damage the
precision component parts of the hydraulic system, the
end of the suction line is provided with an oil strainer.
BReplacing Fuel Filter
Consult your local KUBOTA Dealer for this service.
[How to remove the secondary element]
1. While turning slightly, pull out the secondary element.
(1) Secondary element
PERIODIC SERVICE70
EVERY 2 YEARS
BReplacing Hydraulic Hose
ENGLISH
Consult your local KUBOTA Dealer for this service.
BReplacing Fuel Lines
Consult your local KUBOTA Dealer for this service.
BReplacing Engine Breather Hose
Consult your local KUBOTA Dealer for this service.
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.)
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.
(1) Fuse location
(2) Slow blow fuse
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.
C Protected circuit
FUSE NO.
(1)
(2)
*Option: The fuse should be in only when the work light
CAPACITY
(A)
15Main system
15Aux. outlet
10Control system
20*(Work light)
--
--
Slow blow fuse50Check circuit against
is attached.
Protected circuit
wrong battery connection
71PERIODIC SERVICE
BChecking and Replacing Blade
ENGLISH
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).
(A) New blade
(B) Worn blade
(C) Cracked blade
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.
PERIODIC SERVICE72
ENGLISH
[RCK48S]
(1) Block(A) "LOOSEN"
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. [RCK48S]
Pass the bolt through the blade and the cup washer,
and tighten the bolt.
[RCK48P, RCK54P]
Pass the bolt through the blade, 2 cup washers and
the lock washer, and tighten the bolt.
[RCK60P]
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.
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 and nuts securely 77.6 to 90.2 N-
m (8.0 to 9.2 kgf-m, 57.1 to 66.5 lbf-ft).
ENGLISH
A Tighten the bolts of the outer blades from 103 to 118
N-m (76 to 87 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) LH blade
(2) Center blade
(3) RH blade
(1) Tension pulley
(2) Bracket (RH)
(3) Belt
(4) Bolt
(5) Nut
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.
74ADJUSTMENT
ADJUSTMENT
ENGLISH
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.
10.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.
11.Place the lever in "NEUTRAL LOCK" position, and
check that the rear axle does not rotate.
If the axle does not stop rotating, adjust the "HST
NEUTRAL" again.
12.Adjust the other side "HST NEUTRAL" equally.
13.After adjustment, make sure to stop the engine
immediately.
A Right and left motion control levers can be adjusted
independently.
A This machine has a creep speed.
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. Remove the lever guide.
5. Place the motion control lever in "NEUTRAL LOCK"
position.
6. Check that the lever is touching the front side of its
guide plate.
If the lever is not in the correct position, adjust the
speed control spring.
See "CREEP SPEED".
7. Remove the set knobs of seat frame, then raise and
latch the seat assembly.
8. Remove the connector from the seat safety switch,
and then temporarily install a jumper wire across the
terminals in the connector of the wiring harness.
(1) Guide plate
(2) Motion control lever
(1) Motion control rod
(2) Lock nut
(3) Beam plate
(4) Panel screen
(A) The lever is in contact
with plate.
To avoid personal injury:
A Do not operate the machine with a jumper wire.
9. Loosen the lock nut of the motion control rod.
Adjust the motion control rod until the rear axle rotation
stops.
BCREEP SPEED
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 lever in "NEUTRAL" position.
5. Pull the lever to the reverse maximum position and
release the lever.
6. Measure the axle rotation.
7. Loosen the lock nut and adjust the creep speed control
bolt length so that the axle rotation is between 8 to 10
revolutions per minute. (Do not change spring length
L=55 to 56 mm (2.17 to 2.2 in.))
8. Tighten the lock nut.
9. Check the axle creep rpm again.
If it is not correct, adjust again.
10.Adjust the other side "CREEP SPEED" equally.
11.After adjustment, make sure to stop the engine
immediately.
75ADJUSTMENT
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.
Gap: 0 to 2 mm
Recommendation
If positions of the control levers are unequal, an
adjustment is necessary.
(0 to 0.08 in.)
Space:10 to 20 mm
(0.4 to 0.8 in.)
ENGLISH
(1) Lock nut
(2) Creep speed control bolt
(1) Motion control lever
(2) Guide plate
(L) 55 to 56 mm (2.17 to 2.2 in.)
(A) "CREEP" position
(hands off)
(B) "NEUTRAL" position
(held by hands)
(A) "GAP"
(B) "SPACE"
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.
ADJUSTMENT76
C Aligning the control levers
1. Stop the engine and apply the parking brake.
2. Loosen the screws and remove the lever guide.
ENGLISH
Lever position (High or Low)
3. Remove the bolts and select the motion control lever
position, high or low.
4. Tighten the bolts.
(1) Bolt
(2) Flange nut
(3) Tab slot
(A) High position
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.
Lever alignment (Right and Left)
5. Loosen the bolts.
6. Slide both levers forward or rearward to the desired
position within tab slots until levers are aligned.
7. Tighten the bolts.
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.
Front side anti-scalp roller
6. Adjust the height of the front side anti-scalp roller to
one of three positions to approximately 19 mm (3/4
in.) between rollers and the ground.
Adjust both side rollers to the same height.
(H) 19 mm (3/4 in.)
7. Install the roller with attaching hardware.
Rear side anti-scalp roller
8. Adjust the height of the rear side anti-scalp roller to
one of three positions to approximately 19 mm (3/4
in.) between rollers and the ground.
Adjust both side rollers to the same height.
(H) 19 mm (3/4 in.)
9. Install the roller with attaching hardware.
77ADJUSTMENT
BLEVEL MOWER DECK (Side-to-Side)
ENGLISH
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
Height of the blade
at the concrete surface
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.
Side-to-Side adjustmentLess than 3 mm (1/8 in.)
76 mm (3 in.)
ADJUSTMENT78
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
79ADJUSTMENT
Front-to-Rear
adjustment
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.
Less than 6 mm (1/4 in.)
Front side must be lower
than Rear side.
ENGLISH
9. Check the front-to-rear level and if it is not level,
adjustment is necessary.
(1) Cutting height fine tuning bolt
(2) Lock nut
80ADJUSTMENT
GENERAL TORQUE SPECIFICATION
ENGLISH
SAE grade No.
1/4
5/16
3/8
1/2
9/16
5/8
American standard cap screws
with UNC or UNF threads
GR.5GR.8
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
8 - 9.6
10.7 - 12.9
1.11 - 1.33
17 - 20.5
23.1 - 27.8
2.35 - 2.84
35 - 42
47.5 - 57.0
4.84 - 5.82
80 - 96
108.5 - 130.2
11.07 - 13.29
110 - 132
149.2 - 179.0
15.22 - 18.27
150 - 180
203.4 - 244.1
20.75 - 24.91
149.2 - 179.0
15.22 - 18.27
217.0 - 260.4
22.14 - 26.57
298.3 - 358.0
30.44 - 36.53
12 - 14.4
16.1 - 19.3
1.66 - 1.99
24 - 29
32.5 - 39.3
3.31 - 4.01
45 - 54
61.0 - 73.2
6.22 - 7.47
110 - 132
160 - 192
220 - 264
Property class
M6
M8
M10
M12
M14
M16
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
(lbf-ft)
(N-m)
(kgf-m)
Metric cap screws
Class 8.8Class 10.9
7.2 - 8.3
9.81 - 11.3
1.0 - 1.15
17.4 - 20.2
23.6 - 27.4
2.4 - 2.8
35.5 - 41.2
48.1 - 55.8
4.9 - 5.7
57.2 - 66.5
77.5 - 90.1
7.9 - 9.2
91.2 - 108
124 - 127
12.6 - 15.0
145 - 166
196 - 225
20.0 - 23.0
21.7 - 25.3
29.4 - 34.3
3.0 - 3.5
44.9 - 52.1
60.8 - 70.5
6.2 - 7.2
76.0 - 86.8
103 - 117
10.5 - 12.0
123 - 144
167 - 196
17.0 - 20.0
192 - 224
260 - 303
26.5 - 31.0
TIGHTENING TORQUE CHART
81ADJUSTMENT
Thread
size
d (mm)
M812 or 13
M1014 or 17
M1217 or 19
M1419 or 22
A Figure "7" on the top of the bolt indicates that the bolt is of special material.
A Before tightening, check the figure on the top of bolt.
Hexa-Bolt
Head size
B (mm)
No mark7T
lbf-ftN-mkgf-mlbf-ftN-mkgf-m
13.0 - 15.2
(14.11.1)
28.9 - 33.3
(31.12.2)
46.3 - 53.5
(49.93.6)
79.6 - 92.6
(86.16.5)
17.8 - 20.6
(19.21.4)
39.3 - 45.1
(42.22.9)
62.8 - 72.6
(67.74.9)
107.9 - 125.5
(116.78.8)
1.9 - 2.1
(2.00.1)
4.0 - 4.6
(4.30.3)
6.4 - 7.4
(6.90.5)
11.0 - 12.8
(11.90.9)
17.5 - 20.3
(18.91.4)
35.4 - 41.2
(38.32.9)
57.1 - 66.5
(61.84.7)
91.1 - 108.5
(99.88.7)
23.5 - 27.5
(25.52.0)
48.1 - 55.9
(52.03.9)
77.6 - 90.2
(83.96.3)
123.6 - 147.0
(135.311.7)
ENGLISH
2.4 - 2.8
(2.60.2)
4.9 - 5.7
(5.30.4)
8.0 - 9.2
(8.60.6)
12.6 - 15.0
(13.81.2)
82STORAGE
STORAGE
ENGLISH
To avoid personal injury:
A Do not clean the machine with engine running.
A To avoid the danger of exhaust fume
poisoning, do not operate the engine in a
closed building without proper ventilation.
A When storing, remove the key to avoid
unauthorized persons from operating the
machine and getting injured.
MACHINE STORAGE
If you intend to store your machine for an extended period
of time, follow the procedures outlined below. These
procedures will insure that the machine is ready to
operate with minimum preparation when it is removed
from storage,
1. Check for loose bolts and nuts, and tighten if
necessary.
2. Apply grease to machine areas where bare metal will
rust also to pivot areas.
3. Inflate the tires to a pressure a little higher than usual.
4. Change the engine oil and run the engine to circulate
oil throughout the engine block and internal moving
parts for about five minutes.
5. With all implements lowered to the ground, coat any
exposed hydraulic cylinder piston rods with grease.
6. Remove the battery from the machine. 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.
7. Keep the machine in a dry place where the machine is
sheltered from rain. Cover the machine.
8. Store the machine indoors in a dry area that is
protected from sunlight and excessive heat. If the
machine must be stored outdoors, cover it with a
waterproof tarpaulin.
9. Jack the machine up and place blocks under the front
and rear axles so that all four tires are off the ground.
Keep the tires out of direct sunlight and extreme heat.
A When washing the machine, be sure to stop the
engine. Allow sufficient time for the engine to cool
before washing.
A Cover the machine after the muffler and the engine
have cooled down.
REMOVING THE MACHINE FROM
STORAGE
1. Check the tire air pressure and inflate the tires if they
are low.
2. Jack the machine up and remove the support blocks.
3. Install the battery. Before installing the battery, make
sure it is fully charged.
4. Check all fluid levels (engine oil, transmission/
hydraulic oil and any attached implements).
5. Check all control levers and the brake for proper
function free up or lubricate as necessary.
6. Start the engine. Observe all gauges. If all gauges are
functioning properly and reading normal, move the
machine outside.
7. Once outside, park the machine securely set the
parking brake, place the control levers in the neutral
lock position and let the engine idle for at least five
minutes.
8. Shut the engine off and walk around machine and
make a visual inspection looking for evidence of oil
leaks.
9. With the engine fully warmed up, release the parking
brake and test the brakes for proper adjustment as you
move forward. Adjust the brakes as necessary.
BFuel
To avoid personal injury:
A Make sure the engine and muffler are
sufficiently cooled down before trying to drain
the fuel; otherwise there is a danger of causing
a fire.
A Do not leave the fuel (gasoline) in the fuel tank or
carburetor for more than a month; otherwise the fuel
might deteriorate to make it difficult to start the engine
or cause the malfunction of the engine.
A If the engine is not to be used for more than a month,
drain the fuel from the fuel tank and carburetor.
Before the off-season, drain the fuel from the fuel tank,
carburetor and fuel filter bowl in the following manner.
[Draining the carburetor]
1. Put an oil receiving pan under the drain port.
2. Turn the carburetor fuel valve to the "DRAIN" position
to drain the fuel from the carburetor.
3. Drain the gasoline from the fuel filter bowl. Clean the
inside of the fuel filter bowl as necessary.
4. Reinstall the fuel filter bowl.
5. After that, turn the carburetor fuel valve to the "STOP"
(CLOSE) position.
A Before adding fuel, make sure the carburetor fuel
valve is in the "STOP" (CLOSE) position. Turn the
carburetor fuel valve to the "RUN" (OPEN) position
before starting the engine.
(1) Carburetor fuel valve
83STORAGE
BInspecting and Cleaning Fuel Filter Bowl
Clean the fuel filter bowl before adding fuel to the engine.
To avoid serious injury:
A Never smoke nor use fire or naked flame during
inspection or cleaning.
A Mixing of foreign matter or water in the fuel might
cause a plugged filter element prematurely or cause
much water to accumulate on the bottom of the fuel
filter bowl.
A If water accumulates on the bottom of the fuel filter
bowl, clean the fuel filter bowl or replace it with a new
one.
C Inspecting and cleaning
1. Turn the carburetor fuel valve from the "RUN" (OPEN)
position to the "STOP" (CLOSE) position.