Kubota Z724X, Z726X Operators Manual
OPERATOR'S MANUAL
K3851-7121-2
ENGLISH
MODELS
Z724X
Z726X
DO N
O
T REM
O
V
E
1BDABEAAP0010
READ AND SAVE THIS MANUAL
ABBREVIATION LIST
ENGLISH
Abbreviations Definitions
API
PTO
RH/LH
ROPS
rpm
SAE
American Petroleum Institute
Power Take Off
Right-hand and left-hand sides are determined by facing in
the direction of forward travel
Roll-Over Protective Structures
Revolutions Per Minute
Society of Automotive Engineers
UNIVERSAL SYMBOLS
As a guide to the operation of your machine, various universal symbols have been utilized on the instruments and
controls. The symbols are shown below with an indication of their meaning.
Safety Alert Symbol
Read Operator's Manual
Gasoline Fuel
Power Take-Off Switch Control-Off Position
(Disengaged)
Power Take-Off Switch Control-On Position
(Engaged)
Fuel-Level
Parking Brake-Engaged position
Parking Brake-Disengaged position
Battery Charging Condition
Engine-Stop
Engine-Run
Starter Control
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.
Hours
Cutting Height
Fast
Slow
Engine Speed Control
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this manual to become outdated.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, could result in minor or moderate injury.
Indicates that equipment or property damage could result if
instructions are not followed.
Gives helpful information.
SAFETY FIRST
CONTENTS
SAFE OPERATION ............................................................................................ -1
SERVICING OF MACHINE ......................................................................................... 1
SPECIFICATIONS....................................................................................................... 3
IMPLEMENT LIMITATIONS ........................................................................................ 5
INSTRUMENT PANEL AND CONTROLS................................................................... 6
MOWER MOUNTING.................................................................................................. 8
MOUNTING THE MOWER DECK ........................................................................... 8
ADJUSTING THE MOWER ................................................................................... 10
DISMOUNTING THE MOWER DECK ................................................................... 11
OPERATING THE ENGINE....................................................................................... 12
MOUNT AND DISMOUNT MACHINE SAFELY..................................................... 12
STARTING THE ENGINE...................................................................................... 12
Throttle Lever and Choke lever ......................................................................................14
Key Switch......................................................................................................................14
CHECK DURING OPERATING ............................................................................. 15
Immediately Stop the Engine if:......................................................................................15
Easy Checker (TM).........................................................................................................15
Fuel Gauge.....................................................................................................................15
Hour Meter......................................................................................................................15
COLD WEATHER STARTING............................................................................... 16
WARMING UP ....................................................................................................... 16
Warm-up and Transmission Oil in the Low Temperature Range....................................16
JUMP STARTING .................................................................................................. 16
STOPPING THE ENGINE...................................................................................... 17
ENGLISH
OPERATING THE MACHINE.................................................................................... 18
OPERATING NEW MACHINE............................................................................... 18
Changing Lubricating Oil for New Machines...................................................................18
Machine Break-in............................................................................................................18
OPERATING FOLDABLE ROPS........................................................................... 19
To Fold the ROPS ..........................................................................................................19
To Raise the ROPS to Upright Position.......................................................................... 20
Adjustment of Foldable ROPS........................................................................................20
STARTING............................................................................................................. 20
Operator's Seat...............................................................................................................20
Seat Belt .........................................................................................................................21
Mower Lift Pedal.............................................................................................................22
Throttle Lever..................................................................................................................23
Parking Brake Pedal.......................................................................................................23
Motion Control Lever ......................................................................................................23
STOPPING............................................................................................................. 25
PARKING............................................................................................................... 26
TRANSPORTING................................................................................................... 26
Hydrostatic Transaxle Bypass Lever ..............................................................................27
CONTENTS
OPERATING THE MOWER ...................................................................................... 28
ENGLISH
TIRES AND WHEELS ............................................................................................... 32
MAINTENANCE......................................................................................................... 34
PERIODIC SERVICE................................................................................................. 38
MAKING THE MOST OF YOUR MOWER............................................................. 28
ADJUSTING CUTTING HEIGHT ........................................................................... 28
OPERATING MOWER........................................................................................... 31
PTO Switch.....................................................................................................................31
Starting ........................................................................................................................... 31
TIRES..................................................................................................................... 32
Inflation Pressure............................................................................................................32
WHEELS................................................................................................................ 32
Remove and Install Front Caster Wheels.......................................................................33
SERVICE INTERVALS .......................................................................................... 34
PERIODIC SERVICE CHART LABEL ................................................................... 36
LUBRICANTS AND FUEL...................................................................................... 37
HOW TO OPEN THE STEP................................................................................... 38
Step ................................................................................................................................38
HOW TO RAISE THE OPERATOR'S SEAT.......................................................... 38
DAILY CHECK ....................................................................................................... 39
Checking Engine Oil Level..............................................................................................40
Checking Amount of Fuel and Refueling ........................................................................40
Checking and Cleaning Air Intake Screen......................................................................41
Checking Tire Pressure ..................................................................................................42
Inflation Pressure............................................................................................................42
Checking Transaxle Fluid Level......................................................................................43
Checking Dial Cam Rotation Force ................................................................................43
Checking Movable Parts.................................................................................................43
AFTER FIRST 8 HOURS....................................................................................... 44
Changing Engine Oil.......................................................................................................44
EVERY 50 HOURS................................................................................................ 44
Checking Engine Start System.......................................................................................44
Checking OPC System...................................................................................................45
Greasing .........................................................................................................................45
Checking Muffler and Spark Arrester (if equipped).........................................................46
EVERY 100 HOURS.............................................................................................. 46
Changing Engine Oil.......................................................................................................46
Checking Carbon Canister Air Filter ...............................................................................47
Checking Air Cleaner Outer Element..............................................................................48
Checking Fuel Lines and Fuel Filter ...............................................................................49
Adjusting Parking Brake .................................................................................................50
Checking Battery Condition ............................................................................................51
Adjusting Choke Cable ...................................................................................................53
Adjusting Throttle Cable .................................................................................................53
Cleaning Engine Cooling Areas...................................................................................... 54
Cleaning Engine Oil Cooler Fins (if equipped)................................................................55
Greasing .........................................................................................................................55
Checking Spark Plug Condition & Gap...........................................................................56
EVERY 200 HOURS.............................................................................................. 57
CONTENTS
Checking Hydraulic Hose ...............................................................................................57
Replacing Engine Oil Filter .............................................................................................57
Replacing Fuel Filter.......................................................................................................58
EVERY 250 HOURS.............................................................................................. 58
Replacing Air Cleaner Outer Element.............................................................................58
Checking Air Cleaner Inner Element ..............................................................................58
EVERY 300 HOURS.............................................................................................. 58
Cleaning Combustion Chamber......................................................................................58
Cleaning and Adjusting Valve Seat and Clearance........................................................58
EVERY 500 HOURS AFTER 300 HOURS ............................................................ 58
Replacing Transaxle Oil Filter Cartridge......................................................................... 58
Changing Transaxle Fluid...............................................................................................59
EVERY 500 HOURS.............................................................................................. 60
Electric Clutch Adjustment..............................................................................................60
Lubricating Crank shaft...................................................................................................61
Replacing Air Cleaner Inner Element .............................................................................61
Replacing Spark Plugs ...................................................................................................61
EVERY 1 YEAR ..................................................................................................... 62
Cleaning Engine Oil Cooler Fins.....................................................................................62
Changing Engine Oil.......................................................................................................62
Cleaning Engine Cooling Areas...................................................................................... 62
Checking Muffler and Spark Arrester..............................................................................62
EVERY 2 YEARS................................................................................................... 62
Replacing Hydraulic Hose ..............................................................................................62
Replacing Fuel Lines ......................................................................................................62
Replacing Carbon Canister Air Filter ..............................................................................62
SERVICE AS REQUIRED...................................................................................... 62
Replacing Fuses.............................................................................................................62
Checking and Replacing Blade.......................................................................................63
Mower Belt Replacement................................................................................................64
ENGLISH
ADJUSTMENT........................................................................................................... 65
MOTION CONTROL LEVER ................................................................................. 65
HST NEUTRAL...............................................................................................................65
MOTION CONTROL LEVER FORCE ............................................................................66
MAXIMUM SPEED (FORWARD) ...................................................................................67
MOTION CONTROL LEVER ALIGNMENT.................................................................... 67
MOWER DECK LEVEL.......................................................................................... 68
ANTI-SCALP ROLLERS.................................................................................................68
LEVEL MOWER DECK (Side-to-Side) ...........................................................................68
LEVEL MOWER DECK (Front-to-Rear) .........................................................................69
MOWER LIFT PEDAL ADJUSTMENT ...........................................................................70
GENERAL TORQUE SPECIFICATION................................................................. 71
TIGHTENING TORQUE CHART ........................................................................... 72
STORAGE ................................................................................................................. 73
TROUBLESHOOTING............................................................................................... 74
ENGINE TROUBLESHOOTING ............................................................................ 74
BATTERY TROUBLESHOOTING ......................................................................... 76
MACHINE TROUBLESHOOTING ......................................................................... 77
MOWER TROUBLESHOOTING............................................................................ 77
CONTENTS
INDEX........................................................................................................................ 79
ENGLISH
SAFE OPERATION
Careful operation is your best insurance against an
accident. Read and understand this manual carefully
before operating the machine. All operators, no matter
how much experience they may have had, should read
this and other related manuals before operating the
machine or any implement attached to it. It is the owner's
obligation to instruct all operators in safe operation.
This mowing machine is capable of amputating hands and
feet and throwing objects. Failure to observe the following
safety instructions could result in serious injury or death.
1. BEFORE OPERATING
-1SAFE OPERATION
ENGLISH
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 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.
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 or ROPS.
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
ENGLISH
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 in 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. Check before each use that operator presence
controls are functioning correctly. Test safety systems.
(See "Checking Engine Start System" and "Checking
OPC System" 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.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 a major factor related to loss-of-control and tipover accidents, which can result in severe injury or death.
All slopes require extra caution.
If you cannot back up the slope or if you feel uneasy on it,
do not mow it.
If the engine stops when operating on a slope apply the
parking brake immediately to prevent machine run away.
DO
1. To avoid tip over, operate across the slopes not up and
down. Stay off hills and slopes too steep for safe
operation.
2. Remove obstacles such as rocks, tree limbs, etc.
3. Stay alert for holes in the terrain and other hidden
hazards. Keep away from drop-offs. Uneven terrain
could overturn the machine. Tall grass can hide
obstacles.
4. Follow the manufacturer's recommendations for wheel
weight or counterweights to improve stability.
5. Keep all movement on the slopes slow and gradual.
Do not make sudden changes in speed or direction.
6. Avoid starting or stopping on a slope. If tires lose
traction, disengage PTO and proceed slowly straight
down the slope.
7. Reduce speed and exercise extreme caution on
slopes and in sharp turns to prevent tip-over or loss of
control.
8. Use special caution when changing direction on
slopes. Slow down, and use extra caution when
changing direction on a slope.
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. 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.
4. SERVICING AND STORAGE
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, etc.
3. Always stop the engine before refueling. Avoid spills
and overfilling. Wipe up spilled fuel immediately.
ENGLISH
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.
(1) Fuel tank cap
SAFE OPERATION-4
4. Use extra care in handling gasoline fuels. They are
flammable.
(1) Use only an approved container.
ENGLISH
(2) Do not remove fuel cap or refuel with the engine
running. Allow engine to cool before refueling. Do
not smoke while refueling or when standing near
fuel.
(3) Do not refuel the machine indoors and always
clean up spilled fuel or oil.
(4) Do not store the machine or fuel container inside
where there is an open flame, such as in a water
heater.
5. Do not smoke when working around battery or when
refueling. Keep all sparks and flames away from
battery and fuel tank.
A battery, especially when charging, will give off
hydrogen and oxygen gases, which can explode and
cause serious personal injury.
6. Before "jump starting" a dead battery, read and follow
all the instructions.
7. Disconnect the battery's ground cable before working
on or near electric components.
8. Do not use or charge the refillable type battery if the
fluid level is below the LOWER (lower limit level) mark.
Otherwise, the battery component parts may
prematurely deteriorate, which may shorten the
battery's service life or cause an explosion. Check the
fluid level regularly and add distilled water as required
so that the fluid level is between the UPPER and
LOWER levels.
9. Keep first aid kit and fire extinguisher handy at all
times.
10.Do not 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.
15.Keep machine free of grass, leaves, or other debris
build-up.
16.Do not change the engine governor setting or
overspeed the engine.
17.Do not run a machine inside a closed area.
18.Mower blades are sharp and can cut your hands. Wrap
the blade(s) or wear gloves, and use extra caution
when servicing them.
19.Keep nuts and bolts, especially blade attachment
bolts, tight and keep equipment in good condition.
20.Never tamper with safety devices. Check their
operation for proper function regularly.
21.Waste products such as used oil, fuel, coolant, brake
fluid, and batteries, can harm the environment, people,
pets and wildlife. Please dispose of properly.
22.Do not use beverage containers for waste fluids or
other products. Someone, particularly children, may
drink them by mistake.
23.Securely support machine or any machine elements
with stands or suitable blocking before working
underneath. For your safety do not rely on
hydraulically supported devices, they may leak down,
suddenly drop or be accidently lowered.
24.See your local Recycling Center or KUBOTA Dealer to
learn how to recycle or get rid of waste products.
A A Material Safety Data Sheet (MSDS) provides
specific details on chemical products; physical and
health hazards, safety procedures, and emergency
response techniques. The seller of the chemical
products used with your machine is responsible for
providing the MSDS for that product upon request.
C Storage
1. Keep the machine and supply of fuel in locked storage
and remove the ignition key to prevent children or
others from playing or tampering with them.
2. To avoid sparks from an accidental short circuit,
always disconnect the battery's ground cable (-) first
and reconnect it last.
12.Provide adequate support when changing wheels.
13.Make sure that wheel nuts and bolts have been
tightened to the specified torque.
14.Do not make adjustments or repairs with the engine
running.
(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.
-5SAFE OPERATION
ENGLISH
SAFE OPERATION-6
5. DANGER, WARNING AND CAUTION LABELS
ENGLISH
-7SAFE OPERATION
ENGLISH
SAFE OPERATION-8
ENGLISH
-9SAFE OPERATION
ENGLISH
SAFE OPERATION-10
ENGLISH
6. 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 serial
number of the machine, ROPS, engine and mower.
Locate the serial numbers now and record them in the
space provided.
Type Serial No.
1SERVICING OF MACHINE
ENGLISH
Machine
ROPS
Engine
Mower
Date of Purchase
Name of Dealer
(To be filled in by purchaser)
C Warranty
This machine is warranted under the Kubota Limited
Express warranty, a copy of which may be obtained from
your selling dealer. No warranty shall, however, apply if
the machine has not been handled according to the
instruction given in the Operator's Manual even it is within
the warranty period.
The engine is warranted under the Kawasaki Limited
Warranty, a copy of which has been provided with your
machine purchase.
Please refer to the Kawasaki Limited Warranty for details
regarding warranty coverage, owner obligations, warranty
limitations, and liabilities.
(1) Machine identification plate
(2) Machine serial No.
(1) Engine serial No.
C Scrapping the machine and its procedure
To put the machine out of service, correctly follow the
local rules and regulations of the country or territory where
you scrap it. If you have questions, consult your local
KUBOTA Dealer.
(1) Mower identification plate
(2) Mower serial No.
SERVICING OF MACHINE2
ENGLISH
(1) ROPS serial No.
SPECIFICATIONS
Model Z724XKW Z726XKW
Model KAWASAKI GH735V KAWASAKI GH860V
Max. engine power
(Gross)
Type Air-cooled gasoline engine
Number of cylinders 2 (V-Twin)
Bore and stroke mm (in.) 78 x 76 (3.07 x 2.99) 84.5 x 76 (3.33 x 2.99)
Engine
Capacities
Dimensions
Weight (W/MOWER DECK) kg (lbs.) 538 (1186) with 48" 542 (1195) with 54" 560 (1235) with 60"
Traveling
system
Total displacement cm (cu. in.) 726 (44.3) 852 (52)
Rated revolution rpm 3600
Fuel Unleaded gasoline
Starter Electric
Lubrication Full pressure lubrication
Cooling Air cooled
Battery U1 (12 V, RC: 45 min, CCA: 300, CA: 410)
Fuel tank L (U.S.gals.) 44 (11.6)
Engine crankcase
(with filter)
Transmission case L (U.S.qts.)
Overall length mm (in.) 2130 (83.9)
Overall width
w/o mower deck
Overall
height
Wheelbase mm (in.) 1294 (50.9)
Min. ground clearance mm (in.)
Tread
Tires
Traveling
speeds
Steering 2 - Hand levers
Transmission 2 HST - G rotor type
Parking brake Drum / Foot applied, released
Min. turning radius mm (in.) 0 (0)
With ROPS mm (in.) 1781 (70.1)
Front mm (in.) 954 (37.6)
Rear mm (in.) 1020 (40.2) 1083 (42.6)
Front
Rear 24 x 9.5 - 12 (4PR) Turf 24 x 12 - 12 (4PR) Turf
Forward mph (km/h) 0 to 11.2 (0 to 18.0)
Reverse mph (km/h) 0 to 5.6 (0 to 9.0)
kW (HP) 17.6 (23.5) *1*2 19.0 (25.5) *1*2
L (U.S.qts.) 2.1 (2.2) 2.3 (2.4)
RH: 3.3 (3.5) (*3)
LH: 3.3 (3.5) (*3)
mm (in.) 1280 (50.4) 1390 (54.7)
130 (5.12)
W/48"
13 x 5.0 - 6 (Semi-pneumatic Non Flat Tire)
Smooth
130 (5.12)
W/54"
130 (5.12)
W/60"
13 x 6.5 - 6 (Semi-
pneumatic Non Flat Tire)
Smooth
3SPECIFICATIONS
ENGLISH
4 SPECIFICATIONS
Model Z724XKW Z726XKW
PTO
ENGLISH
(Specifications and design subject to change without notice)
NOTE:
*1: Manufacturer's estimate
*2: These Kawasaki engines have been tested in accordance with SAE J1995, verified by TÜV Rheinland Group, and
certified by SAE International. The gross power ratings of these engines were determined by using measurements
according to SAE J1995 which were witnessed by SAE-approved witnesses from TÜV Rheinland Group. Torque
ratings of these engines were not certified by SAE. Actual power and torque output will vary depending on
numerous factors, including, but not limited to, the operating speed of the engine in application, environmental
conditions, maintenance, and other variables.
*3: Oil amount when the oil level is at the upper level.
PRO
Commercial
Deck
(Fabricated
deck)
Drive system Belt
Clutch type Electric
Model RCK48P-723Z RCK54P-724Z RCK60P-725Z
Suitable machine Z724XKW Z726XKW
Mounting method Parallel linkage
Adjustment of cutting height Dial gauge
Cutting width mm (in.) 1219 (48) 1372 (54) 1524 (60)
Cutting height mm (in.) 25 to 127 (1.0 to 5.0)
Weight (Approx.) kg (lbs.) 102 (225) 110 (243) 119 (262)
Blade spindle speed r/s (rpm) 70.9 (4256) *1 63.3 (3799) *1 57.5 (3450) *1
Blade tip velocity m/s (fpm) 94.5 (18600) *1
Blade length mm (in.) 424 (16.7) 475 (18.7) 523 (20.6)
Number of blades 3
Total length mm (in.) 835 (32.9) 850 (33.5) 905 (35.6)
Dimensions
Total width mm (in.) 1557 (61.3) 1710 (67.3) 1875 (73.8)
Total height mm (in.) 370 (14.6)
*1: Engine Max rpm
IMPLEMENT LIMITATIONS
The KUBOTA Machine has been thoroughly tested for proper performance with implements sold or approved by KUBOTA.
Use with implements which are not sold or approved by KUBOTA and which exceed the maximum specifications listed
below, or which are otherwise unfit for use with the KUBOTA Machine may result in malfunctions or failures of the machine,
damage to other property and injury to the operator or others. [Any malfunctions or failures of the machine resulting from
use with improper implements are not covered by the warranty.]
5IMPLEMENT LIMITATIONS
ENGLISH
Model
Z726XKW 154 kg (339 lbs.) 772 kg (1703 lbs.) 119 kg (262 lbs.) 926 kg (2042 lbs.)
Z724XKW 155 kg (342 lbs.) 746 kg (1645 lbs.) 110 kg (242 lbs.) 901 kg (1987 lbs.)
A These limits include operator weight with seat in rearmost position.
Maximum loading weight
Implement weight W Maximum total weight
Front axle Wf Rear axle Wr
6 INSTRUMENT PANEL AND CONTROLS
INSTRUMENT PANEL AND CONTROLS
ENGLISH
ILLUSTRATED CONTENTS ILLUSTRATED CONTENTS
(1) Parking brake pedal............................. 12, 23 (10) Cutting height control dial..................... 28
(2) Parking brake lock pedal...................... 12, 23 (11) Key switch............................................ 14
(3) Mower lock lever.................................. 22 (12) Easy checker (TM)............................... 15
(4) Motion control lever.............................. 12, 23 (13) Choke lever.......................................... 12
(5) Seat belt............................................... 21 (14) Hour meter........................................... 15
(6) Cup holder............................................ - (15) PTO switch........................................... 31
(7) Operator's seat..................................... 20 (16) Fuel gauge........................................... 15
(8) ROPS................................................... 19 (17) Throttle lever........................................ 23
(9) Mower lift pedal.................................... 22
ILLUSTRATED CONTENTS
(1) Anti-scalp roller (Front, bolt shift type)....... 28
7INSTRUMENT PANEL AND CONTROLS
ENGLISH
ILLUSTRATED CONTENTS
(1) Anti-scalp roller (Front, bolt shift type)....... 28
8MOWER MOUNTING
MOWER MOUNTING
ENGLISH
MOUNTING THE MOWER DECK
To avoid serious 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 Fix mower link at 25.4 mm (1 in.) position.
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. Adjust the anti-scalp rollers to 25.4 mm (1 in.) position.
(See "ADJUSTING CUTTING HEIGHT" in
"OPERATING THE MOWER" section.)
4. Go backward so that right and left front tires would be
on the board 38.1 mm (1.5 in.) high.
5. Make sure the direction of the front tires is as shown in
the figure.
H: 38.1 mm (1.5 in.)
L: 1600 mm (63.0 in.)
W: 133 mm (5.25 in.)
H: 38.1 mm (1.5 in.) W: 133 mm (5.25 in.)
A Use a board more than 133 mm (5.25 in.) wide and
1600 mm (63.0 in.) long.
A Make sure that right and left front tires are firm on the
board.
6. Place the mower deck at the right side of the machine.
7. Slide the mower deck under the machine, then lower
mower lift links.
9MOWER MOUNTING
8. Put a 14 mm (0.55 in.) shaft in the hole in the rear
right side lift link.
(1) Shaft
(2) Lift link
(3) Frame
(D) 14 mm (0.55 in.)
(L) More than 150 mm (6 in.)
A Use a shaft more than 150 mm (6 in.) long.
A It passes through a hole in the frame.
9. Attach the lift links to the mower deck with attaching
hardware.
11.Attach the mower belt to the PTO clutch pulley.
ENGLISH
(1) Mower belt
(2) PTO clutch pulley
12.Remove the step.
(See "HOW TO OPEN THE STEP" in "PERIODIC
SERVICE" section.)
13.Turn the tension arm counterclockwise with a square
wrench.
(1) Lift link
(2) Clevis pin
(3) Plain washer
(4) Snap ring
(P) OUTSIDE
10.Remove the 14 mm (0.55 in.) shaft from the hole in
the rear right side lift link.
(1) Tension arm
(2) Mower belt
(3) Mower pulley
(A) Square wrench
(P) "COUNTERCLOCK WISE"
MOWER MOUNTING10
14.Attach the mower belt to the mower pulleys.
Refer to the routing label.
ENGLISH
A The belt between the idler pulley and PTO clutch
pulley should be to the left of pin-1 as shown in figure
A, and to the left of the PTO clutch guide as shown in
figure B.
A The belt between the tension pulley and the PTO
clutch pulley must be to the left of pin-2 as shown in
figure A, and to the right of pin-3 as shown in figure B.
[Figure B]
(7) Belt between the idler pulley and PTO clutch pulley
(8) Belt between the tension pulley and the PTO clutch pulley
(9) PTO clutch pulley
(10) PTO clutch guide
(11) Pin-3
15.After mounting the mower, check the mower level. If
necessary, adjust the mower level and anti-scalp
rollers.
(1) Mower belt
(2) PTO clutch pulley
(A) Mower tension arm area
(B) PTO clutch area
[Figure A]
(3) Pin-1
(4) Pin-2
(5) Tension pulley
(6) Idler pulley
(7) Belt between the idler pulley and PTO clutch pulley
(8) Belt between the tension pulley and the PTO clutch pulley
ADJUSTING THE MOWER
See "OPERATING THE MOWER" section.
11MOWER MOUNTING
DISMOUNTING THE MOWER DECK
To avoid serious injury:
A Push the mower deck lift pedal with enough
force. If the force is not enough, the mower link
will jump up when the 14 mm (0.55 in.) shaft
is removed from the right side of the machine
due to the power of the spring. Keep all hands
and feet clear of the mower links during this
time.
1. Adjust the cutting height control dial to 25.4 mm (1 in.)
position with the machine placed on the board.
6. Push the mower lift pedal toward the seat and remove
the 14 mm (0.55 in.) shaft from the hole in the rear
right side lift link.
7. Slowly let the mower lift pedal move to the full up
position.
8. Slide the mower deck from under the machine to the
right side of it.
ENGLISH
(1) Board
(2) Mower lift pedal
2. Adjust the anti-scalp rollers to 25.4 mm (1 in.) position.
(See "ADJUSTING CUTTING HEIGHT" in
"OPERATING THE MOWER" section.)
3. Put a 14 mm (0.55 in.) x 150 mm (6 in.) shaft in the
hole of the rear right side lift link.
(1) Shaft ( 14 mm (0.55 in.) x 150 mm (6 in.))
(2) Clevis pin
(3) Lift link
(P) "PUSH"
4. Remove the mower belt.
5. Remove 4 clevis pins mounting the mower deck.
12 OPERATING THE ENGINE
OPERATING THE ENGINE
ENGLISH
STARTING THE ENGINE
To avoid serious injury:
A Read and understand "SAFE OPERATION" in
the front of this manual.
A Read and understand 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.
(1) Parking brake pedal
(2) Parking brake lock pedal
(A) "DEPRESS"
To apply the parking brake:
Depress the parking brake pedal firmly with the left
side of your right foot. Keeping the parking brake pedal
depressed, use the right side of your right foot to
depress the parking brake lock pedal. Then release
the parking brake pedal while holding the parking
brake lock pedal down. Then release the parking
brake lock pedal.
(1) Parking brake pedal
(2) Parking brake lock pedal
(3) Right foot
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