Kubota F2690E, F2690, F3990 Operators Manual
OPERATOR'S MANUAL
MODELS F2690E
F2690
ENGLISH
1BDAIAYAP0010
F3990
K3615-6296-2
READ AND SAVE THIS MANUAL
ABBREVIATION LIST
ENGLISH
Abbreviations
2WD
4WD
API
ASABE
ASTM
DIN
DT
fpm
GST
T/M
Hi-Lo
HST
m/s
PTO
RH/LH
F&R
ROPS
rpm
r/s
SAE
SMV
SPT
Definitions
2 Wheel Drive
4 Wheel Drive
American Petroleum Institute
American Society of Agricultural and Biological Engineers, USA
American Society for Testing and Materials, USA
Deutsches Institut für Normung, GERMANY
Dual Traction [4WD]
Feet Per Minute
Glide Shift Transmission
Transmission
High Speed-Low Speed
Hydrostatic Transmission
Meters Per Second
Power Take Off
Right-hand and left-hand sides are determined by facing in
the direction of forward travel
Front and rear sides are determined by facing in the
direction of forward travel
Roll-Over Protective Structures
Revolutions Per Minute
Revolutions Per Second
Society of Automotive Engineers, USA
Slow Moving Vehicle
Semi-Permanent Type
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.
The above ''IMPORTANT'' text for the spark arrester is applicable to Model F2690E, F2690 alone.
UNIVERSAL SYMBOLS
As a guide to the operation of your machine, various universal symbols have been utilized on the instruments panels
and controls. The symbols are shown below with an indication of their meaning.
ENGLISH
Safety Alert Symbol
Diesel Fuel
Fuel-Level
Engine-Rotational Speed
Hourmeter/Elapsed Operating Hours
Engine Coolant-Temperature
Brake
Parking Brake
Battery Charging Condition
Engine Oil-Pressure
Turn Signal
Engine-Stop
Engine-Run
Remote Cylinder-Retract
Remote Cylinder-Extend
Steering Wheel-Tilt Control
Head Lights OFF
Head Lights ON
Fast
Slow
Read Operator's Manual
Machine-Forward Movement-Overhead View
of Machine
Machine-Rearward Movement-Overhead View
of Machine
Engine Speed Control
Neutral
Diesel Preheat/Glow Plugs (Low Temperature
Start Aid)
Starter Control
Power Take-Off Control-Off Position
(Disengaged)
Power Take-Off Control-On Position (Engaged)
Differential Lock
Position Control-Raised Position
Position Control-Lowered Position
Engine Warning
Full Time 4WD
This position provides 4WD machanically in
any kind of the ground condition.
Dual-Acting Overrunning 4WD
This position provides 4WD autmatically only
when the ground speed dictate between front
and rear wheels (forward and backward).
Regeneration
DPF INHIBIT (Switch)
Regeneration (Switch)
Parked Regeneration
Master System Warning
Constant RPM Management
FOREWORD
ENGLISH
You are now the proud owner of a KUBOTA FRONT 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.
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
MANUAL DEL OPERADOR
MODELOS
F2690E
F2690
F3990
1BDAIAYAP0010
LEA Y CONSERVE ESTE MANUAL
ESPAÑOL
CONTENTS
SAFE OPERATION ............................................................................................ -1
SERVICING OF MACHINE ......................................................................................... 1
SPECIFICATIONS....................................................................................................... 3
IMPLEMENT LIMITATIONS ........................................................................................ 5
INSTRUMENT PANEL AND CONTROLS................................................................... 6
MOWER MOUNTING .................................................................................................. 7
MOUNTING THE MOWER ...................................................................................... 7
DISMOUNTING THE MOWER DECK ..................................................................... 8
MOWER TILT UP..................................................................................................... 8
How To Tilt Up..................................................................................................................8
How To Mount Another Implement...................................................................................8
PRE-OPERATION CHECK ......................................................................................... 9
DAILY CHECK ......................................................................................................... 9
OPERATING THE ENGINE....................................................................................... 10
EXHAUST AFTERTREATMENT DEVICES........................................................... 10
Diesel Oxidation Catalyst and Diesel Particulate Filter (DPF) Muffler............................10
Handling Points...............................................................................................................11
DPF Regeneration Process............................................................................................11
Auto Regeneration Operating Procedure .......................................................................12
PM Warning Level and Required Procedures ................................................................13
Regeneration Inhibit Mode Operating Procedure ...........................................................14
PM Warning Level and Required Procedures ................................................................15
Tips on DPF Regeneration ............................................................................................. 17
Handling at low temperature........................................................................................... 17
STARTING THE ENGINE ...................................................................................... 18
Key Switch......................................................................................................................20
Cold Weather Starting ....................................................................................................20
Block Heater (Option) .....................................................................................................20
STOPPING THE ENGINE...................................................................................... 21
WARMING UP ....................................................................................................... 21
Warm-up and Transmission Oil in the Low Temperature Range....................................21
Engine Stop Lever and Fuel Valve (Inside the Hood).....................................................21
JUMP STARTING .................................................................................................. 22
ENGLISH
OPERATING THE MACHINE.................................................................................... 23
OPERATING NEW MACHINE ............................................................................... 23
Changing Lubricating Oil for New Machines...................................................................23
Engine Break-in ..............................................................................................................23
Machine Break-in............................................................................................................23
OPERATING FOLDABLE ROPS ........................................................................... 24
To Fold the ROPS ..........................................................................................................24
To Raise the ROPS to Upright Position.......................................................................... 25
Adjustment of Foldable ROPS........................................................................................ 25
CONTENTS
ENGLISH
STARTING ............................................................................................................. 26
Operator's Seat...............................................................................................................26
Globe Box.......................................................................................................................26
Steering Wheel Tilt Lever ...............................................................................................27
Seat Belt .........................................................................................................................27
Head Light Switch........................................................................................................... 27
Lift Link Lowering Speed Control Knob .......................................................................... 28
Hydraulic Lift Lever.........................................................................................................28
High-Low Gear Shift Lever .............................................................................................29
4WD Lock Lever .............................................................................................................29
PTO Lever ......................................................................................................................30
Throttle Lever..................................................................................................................30
Parking Brake ................................................................................................................. 30
Speed Control Pedal....................................................................................................... 31
Differential Lock Pedal.................................................................................................... 31
STOPPING............................................................................................................. 31
Stopping..........................................................................................................................31
CHECK DURING DRIVING ................................................................................... 32
Immediately Stop the Engine if:......................................................................................32
Easy Checker (TM)......................................................................................................... 32
LCD MONITOR ...................................................................................................... 33
Fuel Gauge.....................................................................................................................33
Coolant Temperature Gauge..........................................................................................34
Hourmeter / Tachometer.................................................................................................34
Service Code Display .....................................................................................................35
Overheat Alarm............................................................................................................... 35
ELECTRONIC ENGINE CONTROL....................................................................... 35
Constant RPM Management Control.............................................................................. 35
PARKING............................................................................................................... 36
Parking............................................................................................................................36
TRANSPORTING................................................................................................... 36
Directions for Use of Power Steering..............................................................................36
TIRES, WHEELS AND BALLAST.............................................................................. 37
TIRES..................................................................................................................... 37
Inflation Pressure............................................................................................................37
WHEELS ................................................................................................................ 37
Front Wheels (Drive Wheels)..........................................................................................37
Rear Wheels (Steering Wheels) .....................................................................................38
BALLAST ............................................................................................................... 38
MAINTENANCE......................................................................................................... 39
SERVICE INTERVALS .......................................................................................... 39
PERIODIC SERVICE CHART LABEL ................................................................... 42
LUBRICANTS, FUEL AND COOLANT .................................................................. 43
PERIODIC SERVICE................................................................................................. 45
HOW TO OPEN THE HOOD ................................................................................. 45
DAILY CHECK ....................................................................................................... 46
Checking Seat Belt and ROPS.......................................................................................46
Checking Engine Oil Level.............................................................................................. 47
Checking Amount of Fuel and Refueling ........................................................................48
CONTENTS
Checking and Cleaning Radiator Screen and Bonnet Screen to Prevent Overheating.. 49
Checking Tire Pressure .................................................................................................. 50
Checking Transmission Fluid Level................................................................................51
Checking Coolant Level..................................................................................................51
Checking DPF Muffler.....................................................................................................52
Checking Movable Parts................................................................................................. 52
EVERY 50 HOURS ................................................................................................ 53
Checking Engine Start System.......................................................................................53
Checking OPC System ...................................................................................................54
Lubricating All Grease Fittings........................................................................................ 54
Oiling...............................................................................................................................56
Checking Wheel Bolt Torque..........................................................................................57
EVERY 100 HOURS .............................................................................................. 57
Checking Battery Condition ............................................................................................57
Cleaning Air Cleaner Element ........................................................................................59
Checking Fuel Filter........................................................................................................ 60
Checking and Adjusting Brake Pedal ............................................................................. 61
Checking Fan Drive Belt Tension ................................................................................... 62
EVERY 200 HOURS .............................................................................................. 62
Changing Engine Oil....................................................................................................... 62
Replacing Engine Oil Filter Cartridge ............................................................................. 63
Replacing Transmission Oil Filter Cartridge ...................................................................64
EVERY 400 HOURS .............................................................................................. 64
Changing Transmission Fluid ......................................................................................... 64
Cleaning Transmission Strainer......................................................................................65
Changing Rear Axle Differential Case Fluid [4WD] ........................................................66
Changing Rear Axle Gear Case Fluid [4WD] .................................................................66
Adjusting Rear Axle Pivot ...............................................................................................67
Replacing Fuel Filter.......................................................................................................67
EVERY 800 HOURS .............................................................................................. 67
Adjusting Engine Valve Clearance .................................................................................67
EVERY 1000 HOURS or EVERY 1 YEAR............................................................. 67
Replacing Air Cleaner Primary Element and Secondary Element.................................. 67
Checking Exhaust manifold ............................................................................................ 67
EVERY 1500 HOURS ............................................................................................ 67
Checking Fuel Injection Nozzle (Injection Pressure) ...................................................... 67
EVERY 2000 HOURS or EVERY 2 YEARS .......................................................... 68
Flush Cooling System and Changing Coolant................................................................ 68
Anti-freeze ......................................................................................................................69
EVERY 3000 HOURS ............................................................................................ 70
Checking Turbo Charger ................................................................................................70
Checking Injection Pump................................................................................................70
EVERY 1 YEAR ..................................................................................................... 70
Checking Radiator Hose and Clamp ..............................................................................70
Checking Hydraulic Hose ...............................................................................................71
Checking Fuel Lines .......................................................................................................71
Checking Intake Air Line................................................................................................. 72
Checking Engine Breather Hose ....................................................................................72
EVERY 4 YEARS................................................................................................... 72
Replacing Hydraulic Hose ..............................................................................................72
Replacing Fuel Lines ......................................................................................................72
Replacing Engine Breather Hose ...................................................................................72
ENGLISH
CONTENTS
ENGLISH
STORAGE ................................................................................................................. 76
TROUBLESHOOTING............................................................................................... 77
INDEX........................................................................................................................ 81
Replacing Radiator Hose................................................................................................72
Replacing Intake Air Line................................................................................................ 72
SERVICE AS REQUIRED...................................................................................... 73
Replacing Fuses.............................................................................................................73
Replacing Light Bulb.......................................................................................................74
Bleeding Fuel System..................................................................................................... 74
Adjusting Lift Springs (LH & RH) ....................................................................................75
ENGINE TROUBLESHOOTING ............................................................................ 77
POWER TRAIN TROUBLE SHOOTING................................................................ 78
BATTERY TROUBLESHOOTING ......................................................................... 79
MACHINE TROUBLESHOOTING ......................................................................... 80
-1SAFE OPERATION
SAFE OPERATION
Careful operation is your best insurance against an accident. Read and understand this section carefully before operation.
All operators, no matter how experienced they may be, should read this and other related manuals before operation of the
machine or any implement attached to it. It is the owner's obligation to instruct all operators in safe operation.
This cutting 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
1. Know your equipment and its limitations. Read,
understand and follow all instructions in this manual
before attempting to start and operate the machine.
2. Pay special attention to the safety labels on the
machine and mower.
3. 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
4. Always use the seat belt when the ROPS is upright. Do
not use the seat belt without a ROPS being upright.
Check the seat belt regularly and replace if frayed or
damaged.
5. The exhaust gas from the muffler is very hot. To
prevent fire, do not expose dry grass, mowed grass, oil
or any other combustible materials to exhaust gas.
Use a spark arrester where required. Also keep the
engine and muffler clean all the time. Replace the
muffler if it has a fault.
6. Never wear loose, torn, or bulky clothing. It may catch
on moving parts or controls, leading to the risk of
accident. Safety boots or shoes, eye and hearing
protection, gloves, dust mask, etc. are recommended.
7. Do not wear radio or music headphones while
operating the machine.
Safe operation requires your full attention.
8. 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 ROPS.
9. Do not operate machine or any implement attached to
it while under the influence of alcohol, drugs, or other
substances or while fatigued.
10.Check brakes, and other mechanical parts for faulty
adjustment and wear. Replace worn or damaged parts
promptly. Check the tightness of all nuts and bolts
regularly. (For further details, see "MAINTENANCE"
section.)
ENGLISH
SAFE OPERATION-2
11.Keep the machine and attachments in good operating
condition and keep safety devices in place and in
proper working condition.
12.Do not modify the machine. Unauthorized modification
ENGLISH
may affect the function of the machine, which may
result in personal injury.
13.Keep all shields and guards in place. Replace all
missing or damaged items for your safety.
14.Never allow any bystanders around or near machine
during operation.
Be sure the area is clear of other people before
mowing.
Stop machine if anyone enters the area.
15.Before allowing other people to use your machine,
explain proper operation to them and have them read
this manual before operation.
16.Never allow passengers or non-qualified operators on
the machine at any time. You must operate the
machine from the seat only.
17.In addition to the design and configuration of
equipment, hazard control and accident prevention
are dependent on the awareness, concern, and
prudence of personnel involved in the operation,
transport, maintenance of facilities.
18.Keep your machine clean. Dirt, grease, and trash
accumulations may contribute to fires or lead to
personal injury.
19.Use only attachments recommended 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 Equipment's Manual.
2. OPERATING
C Starting
1. Never start the engine or operate levers from
anywhere other than the seat.
2. Before starting the engine make sure that all levers
and speed control pedal are in neutral, the parking
brake is engaged, and Power Take Off (PTO) is
disengaged.
Fasten the seat belt if the ROPS is upright.
3. Do not start the engine while tilting the deck.
4. Do not start the engine by shorting across starter
terminals or by bypassing the safety start switch. The
machine may start and move if normal starting circuitry
is bypassed.
5. Do not operate or idle engine in a poorly ventilated
area. Exhaust gas contains carbon monoxide, a
colorless, odorless gas they can be poisonous if not
properly ventilated.
C Working
1. Watch where you are going at all times. Watch for and
avoid obstacles. Be alert near trees and other
obstructions.
2. To avoid tip over, slow down when turning on uneven
terrain or before stopping.
3. Park the machine on a firm, level surface.
4. Do not drive at high speeds or turn the machine when
the differential is locked.
5. Know what is behind you before backing up. Look to
the rear before and while backing up. 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 the machine is equipped with the grass
catcher. Your view to the rear is restricted.
6. When working in groups, always let others know what
you are doing ahead of time.
7. Do not drive the machine on streets or highways.
Watch for traffic when you cross roads or operate near
roads.
8. Be aware of the mower discharge direction and do not
point it at anyone.
9. 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.
10.To reduce fire hazards, keep the engine exhaust area
free of debris.
11.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.
12.Shut the engine off and wait for all movement to stop
before unclogging the chute of the grass catcher. [if
equipped]
13.Always inspect the mower and the grass catcher [if
equipped] after striking any foreign object. This will
insure that all mower and grass catcher parts are safe
and secure and not damaged.
Repair or replace any damaged parts before restarting.
14.Operate during daylight or in bright artificial light.
15.Do not operate where machine could tip or slip.
Do not operate near ditches, holes, embankments, or
other terrain which may collapse under the machine's
weight. The risk of machine tip-over is increased when
the ground is loose or wet.
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.
A Do not lift the grass container on a slope. [if equipped]
DO
1. To avoid tip over, operate up and down slowly, not
across. 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 KUBOTA's recommendations for wheel
weights or counterweights to improve stability.
5. The weight of grass in the grass container may
increase the possibility of tip over. [if equipped]
6. Keep all movement on slopes slow and gradual. Do
not make sudden changes in speed or direction.
7. Avoid starting or stopping on a slope. If tires lose
traction, disengage the blades and proceed slowly
straight down the slope.
8. Reduce speed and exercise extreme caution on
slopes and in sharp turns to prevent tip-over or loss of
control.
9. Use special caution when changing direction on
slopes.
10.Shift "High - Low Gear Shift Lever" to the Low position
when mowing or operating on slopes.
-3SAFE OPERATION
C Children
Tragic accidents can occur if the operator is not alert to
the presence of children. Children are attracted to the
machine and the 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 the machine off if children enter the
area.
3. Before and when backing, look behind and down for
small children.
4. Never carry children. 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. Local regulation can restrict
the age of the operator.
6. Use extra care when approaching blind corners,
shrubs, trees, or other obstructions that might hide
children from sight.
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.
ENGLISH
DO NOT
1. Do not turn on slopes unless necessary and then turn
slowly and gradually downhill, if possible.
2. Do not mow near drop-offs, ditches, or embankments.
The machine could suddenly turn over if a wheel falls
over the edge of a cliff or ditch, or if an edge caves in.
3. Do not mow on wet grass. Reduced traction could
cause sliding.
4. Do not try to stabilize the machine by putting your foot
on the ground.
5. Do not use the grass catcher on steep slopes. [if
equipped]
6. Do not stop or start suddenly when going uphill or
downhill.
7. Never "freewheel". Do not let the machine travel
downhill with HST pedal at neutral position.
C Stopping
1. Make sure that the machine and all attachments have
come to complete stop before dismounting.
2. Before dismounting, disengage the PTO, lower all
implements, place all control levers in their neutral
positions, apply parking brake, turn off the engine and
remove the key.
3. Do not park the machine on a steep incline. Park on
relatively flat areas.
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 the PTO:
F2690E, F2690 2545 rpm at 3000 engine rpm
F3990 2583 rpm at 2500 engine rpm
SAFE OPERATION-4
4. USING THE LIFT LINK
ENGLISH
1. Use lift link only with authorized attachments designed
for lift link usage.
2. When using a lift link mounted attachment, be sure to
install the adequate counter ballast weight specified in
the attachment's manual.
3. When moving the machine a long distance, set the
implement lowering control in the "LOCK" position to
hold the implement in the raised position.
4. Do not turn the knob quickly.
6. SERVICING
1. Before servicing the machine, park the machine on a
firm, level surface, set the parking brake, stop the
engine and remove the key.
2. Allow the machine to cool off before servicing the
engine, muffler, etc.
3. Always stop the engine before refueling. Avoid spills
and overfilling. Wipe up spilled fuel immediately.
(1) Fuel tank cap
(1) Lift link lowering speed control knob
(A) "FAST": Turn counterclockwise slowly
(B) "SLOW": Turn clockwise
(C) "LOCK": Turn clockwise to the end
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. It is recommended that this machine not be used on
public roads.
4. Use extra care when loading or unloading the machine
into a trailer or truck.
5. Keep attachment(s) low when transporting.
6. Move very slowly when attachment is removed.
4. Use extra care in handling diesel fuel.
(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 a water
heater.
5. Do not smoke when working around the battery.
Keep all sparks and flames away from battery. The
battery presents an explosion hazard because it gives
off hydrogen and oxygen...especially when
recharging.
6. Before "JUMP STARTING" a dead battery, read and
follow all of the instructions to help protect the
alternator from damage due to extreme load changes.
(See "JUMP STARTING" in "OPERATING THE
ENGINE" section.)
Batteries contain sulfuric acid and produce explosive
gases. Follow the instructions below to prevent
personal injury.
A Wear eye and skin protection.
A Keep sparks and flame away.
A Always have adequate ventilation while charging
or using the battery.
7. Keep first aid kit and fire extinguisher available at all
times.
-5SAFE OPERATION
8. Disconnect the battery's negative (-) cable before
working on or near electric components.
9. 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.
10.To avoid sparks from an accidental short circuit,
always disconnect the battery's negative (-) cable first
and connect it last.
(1) Battery
(2) Positive cable (+)
(3) Negative cable (-)
15.Always maintain the correct tire inflation pressure. Do
not inflate tires above the recommended pressure
shown in the Operator's Manual.
ENGLISH
16.Securely support the machine when changing wheels.
17.Make sure that wheel bolts have been tightened to the
specified torque.
18.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.
11.Do not remove the radiator cap while coolant is hot.
When cool, slowly rotate cap to the first stop and allow
sufficient time for excess pressure to escape before
removing the cap completely. If the machine has a
coolant recovery tank, add coolant there instead of the
radiator.
12.Provide adequate support when changing wheels or
the wheel.
13.Make sure that wheel nuts have been tightened to the
specified torque.
14.Do not attempt to mount a tire on a rim. This should be
done by a qualified person with the proper equipment.
SAFE OPERATION-6
19.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
ENGLISH
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
20.Do not make adjustments or repairs with the engine
running.
21.Keep machine free of grass, leaves, or other debris
build-up.
22.Do not run a machine inside a closed area.
7. STORAGE
1. Keep the machine and fuel supply in a secure area
and remove the key to prevent children or others from
playing or tampering with them.
2. Do not store the machine in an area that may ignite
fuel vapor. Allow the engine to cool before storing.
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 mufflers may ignite.
8. DANGER, WARNING AND CAUTION LABELS
-7SAFE OPERATION
ENGLISH
SAFE OPERATION-8
ENGLISH
-9SAFE OPERATION
ENGLISH
SAFE OPERATION-10
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-11SAFE OPERATION
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SAFE OPERATION-12
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9. CARE OF DANGER, WARNING AND CAUTION LABELS
-13SAFE OPERATION
1. Keep danger, warning and caution labels clean and free from obstructing material.
2. Clean danger, warning and caution labels with soap and water, dry with 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 parts, 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.
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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 local KUBOTA Dealer.
When in need of parts, be prepared to give your dealer the
serial number of the machine, ROPS and engine.
Locate the serial numbers now and record them in the
space provided.
Type Serial No.
Machine
Engine
ROPS
Date of Purchase
[F3990]
1SERVICING OF MACHINE
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Name of Dealer
(To be filled in by purchaser)
[F2690E, F2690]
(1) Machine serial No.
(2) Engine serial No.
(1) Machine serial No.
(2) Engine serial No.
[F2690E, F2690, F3990]
(1) ROPS serial No.
SERVICING OF MACHINE2
C Warranty
This machine is warranted under the Kubota Limited
Express warranty, a copy of which may be obtained from
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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.
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.
SPECIFICATIONS
Model F2690E F2690 F3990
Model D1105 V1505T
Engine gross power (SAE) *1 kW (HP) 19 (25.5) 28.9 (39)
Type Indirect Injection. Vertical water - cooled, 4cycle diesel
Number of cylinders 3 4
Bore and stroke mm (in.) 78 x 78.4 (3.07 x 3.09)
Total displacement cm (cu.in.) 1123 (68.53) 1498 (91.41)
3SPECIFICATIONS
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Engine
Capacities
Rated revolution rpm 3000
Low idling revolution rpm 1300 to 1400
Fuel
Starter Electric starter with battery, glow plug, 12 V, 1.4 kW
Lubrication Forced lubrication by gear pump
Cooling Liquid with pressurized radiator
Battery 12 V, RC: 133 min, CCA: 582 A
Fuel tank L (U.S.gals.) 61 (16.1)
Engine crankcase (with filter) *3 L (U.S.qts.) 3.5 (3.7) 4.7 (5.0)
Engine coolant L (U.S.qts.) 4.6 (4.9) 3.7 (3.9)
Recovery tank L (U.S.qts.) 0.6 (0.6) 1.1 (1.1)
Transmission case L (U.S.qts.) 14 (14.8)
Rear axle differential case L (U.S.qts.) 1.5 (1.6)
Rear axle gear case L (U.S.qts.) 0.5 (0.5)
Overall length mm (in.) 2450 (96.5) 2510 (98.9)
Overall width mm (in.) 1240 (48.8) 1370 (53.9)
Diesel fuel No.1 (S-15) [below -10 (14 )]
Diesel fuel No.2 (S-15)
[PTO ON] 2500
[PTO OFF] 2700
Without
Overall height
Dimensions
Wheelbase mm (in.) 1300 (51.2)
Min. ground clearance mm (in.) 185 (7.3)
Tread
Weight (W/O mower deck) kg (lbs.) 756 (1667) 770 (1698) 855 (1885)
ROPS
With
ROPS
Front mm (in.) 975 (38.4) 1063 (41.9)
Rear mm (in.) 875 (34.4) 1020 (40.1)
mm (in.) 1350 (53.1)
mm (in.) 1985 (78.2)
SPECIFICATIONS4
Model F2690E F2690 F3990
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Traveling
system
Front
Tires
Rear
Low
Forward
High
Traveling speeds *2
Low
Reverse
High
Steering Power, hydrostatic
Transmission
Brake Wet disk type
Min. turning radius mm (in.) 750 (29.5) (Inside of Front Tire)
Front Bevel gear
Differential
Rear - Bevel gear
mph
(km/h)
mph
(km/h)
mph
(km/h)
mph
(km/h)
23 x 10.5 - 12
(4PR) Turf
16 x 6.5 - 8
(4PR) Turf
0 to 5.6 (0 to 9)
0 to 12.5 (0 to 20)
0 to 3.0 (0 to 4.8)
0 to 6.9 (0 to 11)
Main - hydrostatic transmission. High - Low gear shift
(2 forward, 2 reverse)
24 x 12 - 12
(4PR) Turf
18 x 9.5 - 8
(4PR) Turf
4WD system - Dual - Acting Overrunning 4WD
Revolution
PTO
(Specifications and design subject to change without notice)
NOTE:
*1 Manufacture's estimate
*2 F2690E, F2690: At 3000 engine rpm
F3990: [PTO ON] At 2500 engine rpm, [PTO OFF] At 2700 engine rpm
*3 Oil amount when the oil level is at the center of the oil level gauge
Drive system
Clutch type Wet multi plates
PTO brake Wet single plate
(2545 rpm at 3000 engine rpm)
Shaft drive. KUBOTA 10 tooth
1 speed
involute spline
(2545 rpm)
1 speed
(2583 rpm at
2500 engine rpm)
Shaft drive.
KUBOTA 10 tooth
involute spline
(2583 rpm)
IMPLEMENT LIMITATIONS
The KUBOTA Machine has been thoroughly tested for proper performance with implements sold or approved by KUBOTA.
Use of implements which exceed the maximum loading weight listed below, or which are not recommended for use with
the KUBOTA Machine may result in malfunctions or failures of the machine, damage to other property and injury to the
operator or others. (Any malfunctions or failures of the machine resulting from use with improper implements are not
covered by the warranty.)
Maximum loading weight Lift link end maximum
F2690E
F2690
F3990
Front axle Wf Rear axle Wr
900 kg (1984 lbs.) 600 kg (1323 lbs.) 260 kg (573 lbs.) 1500 kg (3307 lbs.)
loading weight
Wo
Maximum total weight
5IMPLEMENT LIMITATIONS
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[F3990]
B IMPORTANT
When you use outlet electric power with a cabin on, do not use with the engine revolution lower than 2000 rpm. Maximum
allowance value 25(A) at engine revolution more than 2000 rpm.
6 INSTRUMENT PANEL AND CONTROLS
INSTRUMENT PANEL AND CONTROLS
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ILLUSTRATED CONTENTS ILLUSTRATED CONTENTS
INSTRUMENT PANEL, SWITCHES and
HAND CONTROLS
(1) Liquid crystal display................................................... 33 (26) Differential lock pedal........................................... 31
(2) Parked regeneration switch [F3990 only].................... 10 (27) Parking brake lever.............................................. 18
(3) DPF INHIBIT switch [F3990 only]................................ 10 (28) Globe box............................................................. 26
(4) Key switch.................................................................. 20 (29) Cup holder
(5) Throttle lever............................................................... 30 (30) 4WD lock lever (4WD only).................................. 29
(6) Head light switch......................................................... 27 (31) Seat belt............................................................... 27
(7) Steering wheel tilt lever............................................... 27 (32) Operator's seat..................................................... 26
(8) PTO clutch indicator................................................... 18 (33) Brake pedal.......................................................... 30
(9) Electrical charge warning indicator............................. 32 (34) Speed control pedal (HST pedal)......................... 31
(10) Parking brake warning indicator................................ 18 (35) High - Low gear shift lever..................................... 29
(11) Head light indicator................................................... 27 (36) Hydraulic lift lever................................................. 28
(12) Master system warning indicator............................... 32 (37) PTO lever............................................................. 30
(13) Glow plug indicator................................................... 18 (38) Lift link lowering speed control knob.................... 28
(14) Engine oil pressure warning indicator....................... 32 (39) Hood lock lever.................................................... 45
(15) Engine overheat warning indicator............................ 32 (40) Steering wheel
(16) 4WD indicator........................................................... 29
(17) Fuel level indicator.................................................... 18
(18) Engine warning indicator [F3990 only]...................... 10
(19) Regeneration indicator [F3990 only]......................... 10
(20) Parked regeneration indicator [F3990 only].............. 10
(21) Constant RPM management indicator [F3990 only].. 35
(22) Fuel gauge................................................................ 33
(23) Coolant temperature gauge...................................... 34
(24) Hourmeter................................................................ 34
(25) Tachometer.............................................................. 34
CONTROLS
MOWER MOUNTING
MOUNTING THE MOWER
To avoid serious injury:
A Before mounting the mower deck, read and
understand the use of the lift link lowering
speed control knob.
(See "Lift Link Lowering Speed Control Knob"
in "OPERATING THE MACHINE" section in the
operator's manual of the machine.)
A Place the PTO lever in the "DISENGAGE"
position.
A Place the High-Low gear shift lever in the
"NEUTRAL" position.
A The mower links (left hand, right hand) are
spring-loaded. Have an assistant hold the arm
in position when mounting the mower deck.
1. Move the mower deck under the mower links and
place the hydraulic lift lever in the "DOWN" position.
2. Attach the front end of the mower links to the mower
deck with clevis pins and set pins.
A For tilting up the mower, see "MOWER TILT UP"
section in the operator's manual of the mower.
(1) Lift rod
(2) Lock pin
(3) Mower link
6. Pull back the coupler of the universal joint.
Push the universal joint onto the PTO shaft until the
coupler locks.
Slide the universal joint backward and forward to
check that the universal joint is locked securely.
7MOWER MOUNTING
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(4) Gas spring
(5) Tilt lever ("UNLOCKED" position)
(6) Rue ring cotter
(1) Mower link
(2) Set pin
(3) Clevis pin
3. Start the engine, raise the mower deck, lock the lift link
lowering speed control knob and shut off the engine.
4. Install the lift rods to the mower deck with lock pins and
lower the mower deck on the ground.
[RCK72P-F39 / RCK72R-F36]
5. Attach the gas spring to the mower link with the clevis
pin and the rue ring cotter.
A When operating the mower, make sure the tilt lever is
unlocked.
(1) Coupler
(2) Universal joint
A Finally pull the universal joint to see if it is locked tight
in position.
After mounting the mower deck, adjust the lift link lowering
speed.
(See "CONTROLS" in "INSTRUMENT PANEL AND
CONTROLS" section.)
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