American Society of Agricultural and Biological Engineers, USA
American Society of Testing and Materials, USA
Deutsches Institut für Normung, GERMANY
Dual Traction [4WD]
Feet Per Minute
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
Roll-Over Protective Structures
Revolutions Per Minute
Revolutions Per Second
SAE
SMV
Society of Automotive Engineers, USA
Slow Moving Vehicle
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.
IMPORTANT
The engine in this machine is not equipped by the manufacturer with a standard spark arrester.
It is a violation of California Public Resource Code Section 4442 to use or operate this engine
on or near any forest-covered, brush-covered land, or grass- covered land unless the exhaust
system is equipped with a working spark arrester meeting state laws. Other states or federal
areas may have similar laws.
Canadian Electromagnetic Compatibility (EMC):
This machine complies with Industry Canada ICES-002.
Page 3
UNIVERSAL SYMBOLS
As a guide to the operation of your tractor, 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
Hour meter/Elapsed Operating Hours
Diesel Fuel
Fuel-Level
Empty
Full
Engine-Run
Diesel Preheat/Glow Plugs (Low Temperature
Start Aid)
Starter Control
Engine-Stop
Engine Oil-Pressure
Engine Coolant-Temperature
Battery Charging Condition
Electrical Power-accessories
Hazard Warning Lights
Turn Signal
Headlight
Master Lighting Switch
Engine Speed Control
Slow
Fast
Brake
Parking Brake
4-Wheel Drive-Off
4-Wheel Drive-On
Speed set-On
Speed set-Off
Differential Lock
Hydraulic Control-Lowered Position
Hydraulic Control-Raised Position
3-Point Lowering Speed Control
Remote Cylinder-Retract
Remote Cylinder-Extend
Mid-PTO
Mid-Rear-PTO
Rear-PTO
Power Take-Off Clutch Control-Off Position
Power Take-Off Clutch Control-On Position
Tilt Steering Lever
Loader Lock Lever Lock Position
Loader Lock Lever Unlock Position
Page 4
You are now the proud owner of a KUBOTA Tractor. This tractor is a product of
KUBOTA's quality engineering and manufacturing. It is made of the excellent
materials and under rigid quality control systems. It will give you long, satisfactory
service. To obtain the best use of your tractor, please read this manual carefully. It
will help you become familiar with the operation of the tractor and contains many
helpful hints about tractor maintenance. It is KUBOTA's policy to utilize, as quick as
possible, every advance in our research. The immediate use of new techniques in
the manufacturing of products may cause some small parts of this manual to
become outdated. KUBOTA distributors and dealers will have the most up-to-date
information. Please do not hesitate to consult them.
This symbol, the industry's "Safety Alert Symbol", is used throughout this manual
and on labels on the machine itself to warn of the possibility of personal injury.
Read these instructions carefully. It is essential that you read the instructions and
safety regulations before you attempt to assemble or use this unit.
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.
1. Warranty of the tractor............................................................................................................................... 18
2. Scrapping the tractor and its procedure .................................................................................................... 18
OR ...............................................................................................17
FRONT LOADER................................................................................................................................................ 26
WEIGHT OF THE IMPLEMENTS AS THE REAR BALLAST .............................................................................26
INSTRUMENT PANEL AND CONTROLS .................................................................................27
INSTRUMENT PANEL, SWITCHES, AND HAND CONTROLS .........................................................................27
5. Turn signal light switch ..............................................................................................................................28
6. Hood open lever ........................................................................................................................................29
FOOT CONTROLS AND HAND CONTROLS ....................................................................................................30
2. Seat belt .................................................................................................................................................... 31
3. Brake pedal and parking brake lock pedal ................................................................................................ 31
3.1 How to use the parking brake ............................................................................................................ 32
4. Range gear shift lever (Hi-Lo) ................................................................................................................... 32
5. Front wheel drive lever ..............................................................................................................................32
6. Hand accelerator lever .............................................................................................................................. 33
7. Speed control pedal................................................................................................................................... 33
8. Speed set device [BX2380 and BX2680] .................................................................................................. 34
8.1 How to use the speed set device [BX2380 and BX2680]................................................................... 34
1. 12 V electric outlet ..................................................................................................................................... 34
DAILY CHECK ITEMS BEFORE OPERATION OF THE TRACTOR .................................................................. 36
OPERATING THE ENGINE .......................................................................................................37
STARTING THE ENGINE ................................................................................................................................... 37
STOPPING THE ENGINE................................................................................................................................... 39
WARMING UP OF THE ENGINE .......................................................................................................................40
JUMP STARTING THE ENGINE ........................................................................................................................ 40
OPERATING THE TRACTOR....................................................................................................42
OPERATING NEW TRACTOR ........................................................................................................................... 42
GETTING ON AND OFF THE TRACTOR ..........................................................................................................42
1. Cold weather starting of the engine........................................................................................................... 39
1. Warm-up of the engine and transmission oil in the low temperature range............................................... 40
Page 6
OPERATING THE FOLDABLE ROPS ................................................................................................................ 42
2
BX1880, BX2380, BX2680
1. Folding the ROPS...................................................................................................................................... 42
2. Raising the ROPS to upright position
3. Adjusting the foldable ROPS ..................................................................................................................... 44
STARTING THE TRACTOR................................................................................................................................ 44
STOPPING THE TRACTOR............................................................................................................................... 46
CHECK DURING DRIVING ................................................................................................................................47
1. Cases to stop the engine immediately....................................................................................................... 47
2. Check items during driving ........................................................................................................................47
2.3 Coolant temperature gauge ............................................................................................................... 48
2.4 Dealing with the overheated coolant temperature.............................................................................. 49
2.5 Hour meter .........................................................................................................................................49
PARKING THE TRACTOR.................................................................................................................................. 50
TECHNIQUES FOR OPERATING THE TRACTOR ........................................................................................... 50
1. PTO select lever ........................................................................................................................................ 52
2. PTO clutch lever ........................................................................................................................................ 52
3. PTO shaft cover and PTO shaft cap.......................................................................................................... 53
4. Using stationary PTO................................................................................................................................. 53
1. Precautions for attaching and detaching the implements to the 3-point hitch ...........................................56
2. Adjusting the lifting rod (right).................................................................................................................... 56
3. Adjusting the top link ................................................................................................................................. 56
4. Adjusting the check chains ........................................................................................................................ 56
1. Front ballast............................................................................................................................................... 67
SERVICE INTERVALS........................................................................................................................................ 69
LUBRICANTS, FUEL, AND COOLANT .............................................................................................................. 71
1. Walk around inspection .............................................................................................................................75
2. Checking the fuel gauge and refueling ...................................................................................................... 75
3. Checking the engine oil level..................................................................................................................... 76
4. Checking the transmission fluid level ........................................................................................................ 76
5. Checking the coolant level......................................................................................................................... 77
6. Cleaning the panel and the radiator screen............................................................................................... 77
7. Checking the brake pedal.......................................................................................................................... 78
8. Checking the gauges, the meters, and the Easy Checker™...................................................................... 78
9. Checking the head light, hazard light, and so on....................................................................................... 78
10. Checking the seat belt and the ROPS..................................................................................................... 78
11. Checking and cleaning the electrical wiring and the battery cables......................................................... 78
12. Checking the movable parts .................................................................................................................... 79
SERVICE EVERY 50 HOURS ............................................................................................................................ 79
1. Lubricate fittings with grease ..................................................................................................................... 79
2. Checking the engine start system ............................................................................................................. 80
3. Checking the OPC (operator presence control) system ............................................................................ 80
4. Checking the wheel bolt torque .................................................................................................................81
5. Cleaning the lock lever shaft ..................................................................................................................... 81
SERVICE EVERY 100 HOURS .......................................................................................................................... 82
1. Checking of the battery.............................................................................................................................. 82
1.2 Dealing with the battery when storing the tractor for a long period .................................................... 83
2. Cleaning the air cleaner element............................................................................................................... 83
3. Checking the fuel filter ............................................................................................................................... 84
4. Adjusting the fan belt tension .................................................................................................................... 84
5. Adjusting the HST neutral spring for speed control pedal .........................................................................85
6. Adjusting the brake pedal .......................................................................................................................... 85
SERVICE EVERY 200 HOURS .......................................................................................................................... 86
1. Replacing the engine oil filter .................................................................................................................... 86
2. Changing the engine oil............................................................................................................................. 86
3. Replacing the transmission oil filter ........................................................................................................... 87
4. Checking the toe-in.................................................................................................................................... 87
4.1 Adjusting the toe-in ............................................................................................................................ 88
SERVICE EVERY 400 HOURS .......................................................................................................................... 88
1. Adjusting the front axle pivot ..................................................................................................................... 88
2. Changing the transmission fluid ................................................................................................................ 88
3. Cleaning the transmission strainer ............................................................................................................89
4. Changing the front axle case oil ................................................................................................................89
5. Replacing the fuel filter element ................................................................................................................90
SERVICE EVERY 800 HOURS .......................................................................................................................... 90
1. Adjusting the engine valve clearance ........................................................................................................ 90
SERVICE EVERY 1000 HOURS OR 1 YEAR.................................................................................................... 90
Page 8
1. Replacing of the air cleaner element ......................................................................................................... 90
4
BX1880, BX2380, BX2680
SERVICE EVER
1. Checking the injection pressure of the fuel injection nozzle ...................................................................... 90
SERVICE EVERY 2000 HOURS OR 2 YEAR.................................................................................................... 90
1. Flushing the cooling system and changing the coolant ............................................................................. 90
SERVICE EVERY 3000 HOURS ........................................................................................................................ 92
1. Checking the injection pump ..................................................................................................................... 92
SERVICE EVERY 1 YEAR .................................................................................................................................92
1. Checking the intake air line ....................................................................................................................... 92
2. Checking the radiator hoses and the hose clamps.................................................................................... 92
3. Checking the power steering line .............................................................................................................. 93
4. Checking the fuel lines .............................................................................................................................. 93
5. Checking the engine breather hose........................................................................................................... 94
SERVICE EVERY 4 YEAR .................................................................................................................................94
1. Replacing the radiator hose (water pipes)................................................................................................. 94
2. Replacing the fuel hose ............................................................................................................................. 94
3. Replacing the power steering hose ...........................................................................................................94
4. Replacing the intake air line ...................................................................................................................... 94
5. Replacing the engine breather hose.......................................................................................................... 94
SERVICE AS REQUIRED................................................................................................................................... 94
1. Bleeding the fuel system ........................................................................................................................... 94
2. Replacing the fuse..................................................................................................................................... 94
3. Replacing the light bulb .............................................................................................................................95
Y 1500 HOURS ........................................................................................................................ 90
STORAGE OF THE TRACTOR.................................................................................................96
STORING THE TRACTOR ................................................................................................................................. 96
REMOVING THE TRACTOR FROM STORAGE................................................................................................ 96
Careful operation is your best insurance against an
accident.
Read and understand this manual carefully before
operating the tractor.
All operators, no matter how much experience they
may have, should read this and other related manuals
before operating the tractor or any implement attached
to it. It is the owner's obligation to instruct all operators
in safe operation.
PRECAUTIONS BEFORE
OPERATING THE TRACTOR
Know your equipment and its limitations.
Read this entire manual before attempting to start and
operate the tractor.
1. General precautions
• Pay special attention to the safety labels on the
tractor.
• Do not operate the tractor or any implement
attached to the tractor while under the influence of
alcohol, medication, controlled substances, or while
you are fatigued.
• Carefully check the vicinity of the tractor before
operating it or any implement attached to it. Do not
allow any bystander around or near the tractor
during operating it.
• Before allowing other people to use your tractor,
explain them how to operate it and have them read
this manual before operating it.
• Never wear loose, torn, or bulky clothing around the
tractor. Loose, torn, or bulky clothing may catch on
moving parts or controls, leading to the risk of an
accident. Use additional safety items: hard hat,
safety boots or shoes, eye and hearing protection,
gloves, and so on, as appropriate or required.
• Do not allow passengers to ride on any part of the
tractor at anytime. The operator must remain in the
tractor seat during operating the tractor.
• Check brakes, clutch, linkage pins, and other
mechanical parts for improper adjustment and
wear. Replace worn or damaged parts promptly.
Check the tightness of all nuts and bolts regularly.
For further details, see SERVICE INTERVALS on
page 69.
• Keep your tractor clean. Buildups of dirt, grease,
and trash may contribute to fires and lead to
personal injury.
• Use only implements meeting the specifications
listed under IMPLEMENT LIMITATION TABLES on
page 22, FRONT LOADER on page 26, and
WEIGHT OF THE IMPLEMENTS AS THE REAR
BALLAST on page 26, or implements approved by
KUBOTA.
• Use proper weights on the front or rear of the
tractor to reduce the risk of upsets. When using the
front loader, put an implement or ballast on the 3point hitch to improve stability. Follow the safe
operating procedures specified in the implement orattachment manual.
• Do not modify the tractor. Unauthorized
modification may affect the function of the tractor,
which may result in personal injury.
2. Precautions for CAB and ROPS
KUBOTA recommends the use of a CAB or roll-overprotective-structures (ROPS), and seat belt in almost
all applications. Combination of a CAB or ROPS and
seat belt will reduce the risk of serious injury or death if
the tractor should be upset.
• Check for overhead clearance which may interfere
with a CAB or ROPS.
• Set parking brake and stop engine. Remove any
obstructions that may prevent raising or folding the
ROPS. Do not allow any bystander. Always perform
functions of CAB or ROPS from a stable position at
the rear of the tractor. Hold the top of the ROPS
securely when raising or folding it. Make sure that
all pins are installed and locked.
• If the CAB or ROPS is loosened or removed for any
reason, make sure that all parts are reinstalled
correctly before operating the tractor.
• Never modify or repair any structural member of a
CAB or ROPS because welding, bending, drilling,
grinding, or cutting it may weaken the structure.
• If any structural member of the CAB or ROPS is
damaged, replace the entire structure at your local
KUBOTA Dealer.
• If the tractor is equipped with a foldable ROPS, you
may fold down it temporarily only when absolutely
necessary to fold down it for areas with constraints
on height.
There is no protection of operator provided by the
ROPS in the folded position. For operator safety,
you should place the ROPS in the upright and
locked position and fasten the seat belt for all other
operations.
• Always use the seat belt if the tractor is equipped
with a CAB or ROPS.
Page 10
Do not use the seat belt if a foldable ROPS is down
SAFE OPERATION
6
BX1880, BX2380, BX2680
or there is no ROPS. Check the seat belt regularly
and replace if frayed or damaged.
(1) ROPS(2) Seat belt
PRECAUTIONS FOR
OPERATING THE TRACTOR
Operator safety is a priority. Safe operation, specifically
with respect to overturning hazards, entails
understanding the equipment and environmental
conditions at the time of use. Some prohibited uses
which can affect overturning hazards include traveling
and turning with implements and loads carried too high,
and so on.
This manual sets forth some of the obvious risks, but
the list of risks is not exhaustive, and the list of risks
cannot be exhaustive. It is the operator's responsibility
to be alert for any equipment or environmental
condition that could compromise safe operation.
1. Precautions for starting to operate
the tractor
• Always sit in the operator's seat when starting the
engine or operating levers or controls. Adjust seat
per 1. Operator's seat on page 31. Never start the
engine while you are standing on the ground.
• Before starting the engine, make sure that all levers
including auxiliary control levers are in their neutral
positions, that the parking brake is engaged, and
that the power take-off (PTO) is disengaged or off.
Fasten the seat belt if the tractor is equipped with a
CAB, a fixed ROPS, or a foldable ROPS in the
upright and locked position.
• Do not start the engine by shorting across starter
terminals or bypassing the safety start switch. The
tractor may start in gear and move if normal starting
circuitry is bypassed.
• Do not operate or idle the engine in a nonventilated area. Carbon monoxide gas is colorless,
odorless, and deadly.
• Check that the operator-presence-control-system
(OPC) are functioning correctly before each time
you use the tractor. Test safety systems. See
2. Checking the engine start system on page 80
and 3. Checking the OPC (operator presence
control) system on page 80.
Do not operate unless they are functioning
correctly.
2. Precautions for working the
tractor
• Pull only from the hitch. Never hitch to axle housing
or any other point except hitch. Hitching to axle
housing or any other point except hitch will increase
the risk of serious personal injury or death due to a
tractor upset.
(1) Hitch
• Keep all shields and guards in place. Replace any
shield or guard that are missing or damaged.
• Avoid sudden starts. To avoid upsets, slow down
when turning, on uneven ground, and before
stopping.
• The tractor cannot turn with the differential locked.
Do not attempt to turn with the differential locked as
it could be dangerous.
• Do not operate near ditches, holes, embankments,
or other ground surface features which may
collapse under the weight of the tractor. The risk of
tractor upset is even higher when the ground is
loose or wet. Tall grass can hide obstacles, so walk
the area first to be sure.
• Watch where you are going at all times. Watch for
and avoid obstacles. Be alert at row ends, near
trees, and other obstructions.
• When working in groups, always let the others
know what you are going to do before you do it.
• Never try to get on or off a moving tractor.
• Always sit in the operator's seat when you are
operating levers or controls.
• Do not stand between the tractor and the
implement or trailed vehicle unless parking brake is
applied.
• Do not operate or tow at speeds exceeding specific
travel speed.
Page 11
3. Safety for children
SAFE OPERATION
BX1880, BX2380, BX2680
7
Tragedy can occur if the operator is not alert to the
presence of children. Children generally are attracted to
machines and their work.
• Never assume that children will remain where you
last saw them.
• Keep children out of the work area and under the
watchful eye of another responsible adult.
• Be alert and shut the tractor down if children enter
the work area.
• Never carry children on the tractor. There is no safe
place for them to ride. They may fall off and be run
over or interfere with your control of the tractor.
• Never allow children to operate the tractor even
under adult supervision.
• Never allow children to play on the tractor or on the
implement.
• Use extra caution when the tractor is backing up.
Before the tractor starts to move, look down and
behind to make sure area is clear.
4. Precautions for operating the
tractor on slopes
5. Precautions for driving the tractor
on the road
• Check the front wheel engagement. The braking
characteristics are different between 2-wheel drive
and 4-wheel drive. Know the difference and use
carefully.
• Always slow the tractor down before turning.
Turning at high speed may tip the tractor over.
• Make sure that the slow-moving-vehicle (SMV) sign
is clean and visible. Use hazard lights and turn
signals as required.
• On public roads, use the SMV emblem and hazard
lights, if required by local traffic and safety
regulations.
Slopes are a major factor related to loss-of-control and
tip-over accidents, which can result in severe injury or
death.
All slopes require extra caution.
• To avoid upsets of the tractor, always back it up
steep slopes. If you cannot back the tractor up on
the slope or if you feel uneasy to back it up on the
slope, do not operate on it. Stay off slopes too
steep for safe operation.
• Driving forward out of a ditch, mired condition or up
a steep slope increases the risk of the tractor to be
upset backward. Always back the tractor out of a
ditch, mired condition or steep slope. The 4-wheel
drive models require extra caution because their
increased traction can give the operator false
confidence in the ability of the tractor to climb
slopes.
• Keep all movement of the tractor on slopes slow
and gradual. Do not change speed or direction of
the tractor suddenly. Do not apply brake suddenly.
Do not move the steering wheel suddenly.
• Avoid changing gears speed when the tractor is
climbing or going down a slope. Changing gears to
neutral on a slope could cause loss of control.
• You should pay special attention to the weight and
location of implements and loads because they will
affect the stability of the tractor.
• To improve stability of the tractor on slope, follow
recommendations for proper ballasting as shown in
BALLAST on page 67
• When driving down a slope, make sure that 4-wheel
drive is engaged to increase traction if equipped.
(1) SMV emblem(2) Bracket
• Check all local traffic and safety regulations.
• Turn the headlights on. Dim the headlights when
meeting another vehicle.
• Drive at speeds that allow you to maintain control at
all times.
• Do not apply the differential lock while traveling at
road speeds. The tractor may run out of control.
• Avoid sudden motions of the steering wheel as they
can lead to a dangerous loss of stability. The risk is
especially great when the tractor is traveling at road
speeds.
• Keep the ROPS in the up position and wear the
seat belt when driving the tractor on the road.
Otherwise, you will not be protected in the event of
a tractor roll-over.
• Do not operate an implement while the tractor is on
the road. Lock the 3-point hitch in the raised
position.
• When towing other equipment, use a safety chain
and place an SMV emblem on the equipment as
well.
Page 12
(1) Safety chain
SAFE OPERATION
8
BX1880, BX2380, BX2680
• Set the implement-lowering-speed-knob in the lock
position to hold the implement in the raised
position.
• Make sure that the tractor has come to a complete
stop before dismounting from it.
• Avoid parking on steep slopes. If it is at all possible,
park on a firm and level surface. If it is not at all
possible to park on a firm and level surface, park
across a slope and chock the wheels.
Failure to comply with this warning may allow the
tractor to move and could cause injury or death.
(B) Push down parking brake
pedal while depressing
brake pedal
PRECAUTIONS FOR
OPERATING THE PTO
• Wait until all moving components have completely
stopped before getting off the tractor, connecting,
disconnecting, adjusting, cleaning, or servicing any
PTO driven equipment.
• Keep the PTO-shaft-cover in place at all times.
Replace the PTO-shaft-cap when the shaft is not in
use.
• Disengage the PTO, lower all implements to the
ground, place all control levers in their neutral
positions, set the parking brake, stop the engine,
remove the key from the ignition, and lock the cab
door if equipped. Leaving transmission in gear with
the engine stopped will not prevent tractor from
rolling.
(1) PTO shaft cover
(2) PTO shaft cap
(A) Normal position
• Before installing or using PTO-driven-equipment,
read the manufacturer's manual and review the
safety labels attached to the equipment.
• When operating stationary PTO-driven-equipment,
always apply the tractor parking brake and place
(B) Raised position
Page 13
chocks behind and in front of the rear wheels. Stay
SAFE OPERATION
BX1880, BX2380, BX2680
9
clear of all rotating parts. Never step over rotating
parts.
PRECAUTIONS FOR USING 3POINT HITCH
• Use the 3-point hitch only with equipment designed
for 3-point hitch usage.
• When using a 3-point-hitch-mounted-implement, be
sure to install the proper counterbalance-weight on
the front of the tractor.
• When transporting loads on the road, set the
implement-lowering-speed-knob in the lock position
to hold the implement in the raised position.
(1) 3-point hitch lowering speed
knob
(A) Fast
• To avoid injury from separation, do not extend lift
rod beyond the groove on the threaded rod.
(B) Slow
(C) Lock
implements to the ground, place the gear shift lever in
neutral, stop the engine, and remove the key.
• Allow the tractor time to cool off before working on
or near the engine, muffler, radiator, and so on.
• Do not remove radiator cap while coolant is hot.
When coolant is cool, slowly rotate cap to the first
stop and allow sufficient time for excess pressure to
escape before removing the cap completely. If the
tractor has a coolant recovery tank, add coolant or
water to the tank. Do not add coolant to the
radiator. See 5. Checking the coolant level on page
77.
• Always stop the engine before refueling. Avoid
spills and overfilling.
• Do not smoke when working around battery or
when the tractor is refueling. Keep all sparks and
flames away from battery and fuel tank. The battery
presents an explosive hazard, because it gives off
hydrogen and oxygen especially when you are
recharging it.
• Before jump starting a dead battery, read and follow
all of the instructions. See JUMP STARTING THE
ENGINE on page 40.
• Keep first-aid-kit and fire extinguisher handy at all
times.
• Disconnect the battery's ground cable before
working on or near electric components.
• To avoid the possibility of battery explosion, do not
use or charge the refillable type battery if the fluid
level is below the lower (lower limit level) mark.
Check the fluid level regularly and add distilled
water as required so that the fluid level is between
the upper and lower levels.
• To avoid sparks from an accidental short circuit,
always disconnect the battery's ground cable (-)
first and reconnect it last.
(1) Groove
PRECAUTIONS FOR
SERVICING THE TRACTOR
Before servicing the tractor, park it on a firm, flat, and
level surface, set the parking brake, lower all
(1) Battery
• Do not attempt to mount a tire on a rim. A qualified
person should mount a tire on a rim with the proper
equipment.
• Always maintain the correct tire pressure. Do not
inflate tires above the recommended pressure
shown in 1. Inflation pressure of tires on page 64.
Page 14
• Securely support the tractor when either changing
SAFE OPERATION
10
BX1880, BX2380, BX2680
wheels or adjusting the wheel tread width.
• Make sure that wheel bolts have been tightened to
the specified torque. See WHEEL TREAD on page
64.
• Do not work under any hydraulically supported
devices. They can settle, suddenly leak down, or be
accidentally lowered. If it is necessary to work
under the tractor or any machine elements for
servicing or adjustment, securely support them with
stands or suitable blocking beforehand.
• Escaping hydraulic fluid under pressure has
sufficient force to penetrate skin, so escaping
hydraulic fluid under pressure can cause serious
personal injury. Before disconnecting hydraulic
lines, be sure to release all residual pressure.
Before applying pressure to the hydraulic system,
make sure that all connections are tight and that all
lines, pipes, and hoses are free of damage.
(1) Cardboard
(2) Hydraulic line
• Waste products such as used oil, fuel, hydraulic
fluid, and batteries, can harm the environment,
people, pets, and wildlife. Please dispose properly.
See your local recycling center or KUBOTA Dealer
to learn how to recycle or get rid of waste products.
(3) Magnifying glass
• Fluid escaping from pinholes may be invisible. Do
not use hands to search for suspected leaks. Use a
piece of cardboard or wood to search for suspected
leaks. You should use safety goggles or other eye
protection. If injured by escaping fluid, see a
medical doctor at once. This fluid will produce
gangrene or severe allergic reaction.
Page 15
SAFETY LABELS
SAFE OPERATION
BX1880, BX2380, BX2680
11
Page 16
SAFE OPERATION
12
BX1880, BX2380, BX2680
Page 17
SAFE OPERATION
BX1880, BX2380, BX2680
13
Page 18
SAFE OPERATION
14
BX1880, BX2380, BX2680
Page 19
1. Care for safety labels
SAFE OPERATION
BX1880, BX2380, BX2680
15
• Keep safety labels clean and free from obstructing
material.
• Clean safety labels with soap and water, and dry
with a soft cloth.
• Replace damaged or missing safety labels with new
safety labels from your local KUBOTA Dealer.
• If a component with safety label(s) attached is
replaced with new component, make sure that new
safety label(s) is (are) attached in the same
location(s) as the replaced component.
• Attach new safety labels by applying on a clean, dry
surface and pressing any bubbles to outside edge.
Page 20
SAFE OPERATION
16
BX1880, BX2380, BX2680
Page 21
DEALER SERVICESERVICING OF THE TRACTOR
BX1880, BX2380, BX2680
17
SERVICING OF THE TRACTOR
DEALER SERVICE
dealer has knowledge of your new tractor and has
Your
the desire to help you get the most value from it.
After reading this manual thoroughly, you will find that
you can perform some of the regular maintenance
yourself.
However, when your tractor needs parts or major
service, be sure to see your KUBOTA Dealer.
For service, contact the KUBOTA Dealership from
which you purchased your tractor or your local
KUBOTA Dealer. When in need of parts, be prepared to
give your dealer the serial numbers of both the tractor
and the engine.
Locate the serial numbers now and record them in the
space provided.
TypeSerial No.
Tractor
ROPS
Engine
Date of Purchase
Name of Dealer
(To be filled in by purchaser)
(3) ROPS identification plate
(ROPS serial No.)
BX1880
(1) Tractor identification plate(2) Tractor serial number
BX2380
Page 22
SERVICING OF THE TRACTORDEALER SERVICE
18
BX1880, BX2380, BX2680
BX2680
(4) Engine serial number
1. Warranty of the tractor
This tractor is warranted under the KUBOTA Limited
Express W
from your selling dealer.
No warranty shall, however, apply if the tractor has not
been used according to the instruction given in the
operator's manual even if it is within the warranty
period.
arranty, a copy of which may be obtained
2. Scrapping the tractor and its
procedure
To put the tractor out of service, correctly follow the
local rules
where you scrap it.
If you have questions, consult your local KUBOTA
Dealer.
Hydraulic control systemDirectional control, auto-return lever system
Pump capacity
System pressure
3-point hitchSAE Category 1
Hydraulic unit
Max. lift force
At lift points
*3
24in. behind lift
points
Remote control
System2 valves
valve coupler
(rear: Option)
Remote control
CouplerISO 7241-1 series A
System2 valves
valve coupler
(front: Option)
Coupler (fitting)ISO 7241-1 series B
Rear PTO
RevolutionSTD (540 rpm)
O
PT
Mid PTO
RevolutionSTD (2500 rpm)
The company reserves the right to change the specifications without notice.
*1 Manufacturer's estimate
*2 SAE J1995
*3 See and check IMPLEMENT LIMITATION TABLES on page 22.
148 mm
(1336 lbs.)
16x7.50-818x8.50-10
24x12.00-1226x12.00-12
(5.8 in.)
606 kg
1400 mm
(55.1 in.)
166 mm
(6.5 in.)
930 mm
(36.6 in.)
820 mm
(32.2 in.)
660 kg
(1455 lbs.)
2.3 m
(7.5 ft)
23.5 L/min.
(6.2 gals/min)
12.3 MPa to 12.8 MPa
(126 kgf/cm to 130 kgf/cm)
[1790 psi to 1850 psi]
5120 N to 5390 N
(1
151 lbs. to 1213 lbs.)
3040 N
(680 lbs.)
SAE 1-3/8, 6 splines
USA No.5 (KUBOTA 10-tooth) involute spline
690 kg
(1521 lbs.)
Page 25
TRAVELING SPEEDS TABLESPECIFICATIONS
BX1880, BX2380, BX2680
21
TRAVELING SPEEDS TABLE
ModelBX1880BX2380 and BX2680
Tire size (Rear)24x12.00-1226x12.00-12
Speed control pedalRange gear shift lever(At max engine rpm)
Low
Forward
High
Low
Reverse
High
The company reserves the right to change the specification without notice.
0 km/h to 5.5 km/h
0 mph to 3.4 mph
0 km/h to 12.0 km/h
0 mph to 7.5 mph
0 km/h to 4.0 km/h
0 mph to 2.5 mph
0 km/h to 9.0 km/h
0 mph to 5.6 mph
0 km/h to 6.0 km/h
0 mph to 3.7 mph
0 km/h to 13.0 km/h
0 mph to 8.1 mph
0 km/h to 4.5 km/h
0 mph to 2.8 mph
0 km/h to 10.0 km/h
0 mph to 6.2 mph
Page 26
IMPLEMENT LIMITATIONSIMPLEMENT LIMITATION TABLES
22
BX1880, BX2380, BX2680
IMPLEMENT LIMITATIONS
IMPLEMENT LIMITATION TABLES
IMPORTANT :
The KUBOT
by KUBOTA. Do not use the following implements:
• Implements which are not sold or approved by KUBOTA
• Implements which exceed the maximum specifications listed in the following table
• Implements which are otherwise unfit for use with the KUBOTA Tractor
These implements may result in malfunctions or failures of the tractor, damage to other property, and injury
to the operator or others.
NOTE :
Any malfunctions or failures of the tractor resulting from use with improper implements are not covered by
the warranty.
Tread (max. width)
Lower link end max. lifting weight W0
Actual figures
A Tractor has been thoroughly tested for proper performance with implements sold or approved
ModelBX1880, BX2380, and BX2680
Front
Rear
Implement weight W1 and / or sizeAs in [Implement weight list]
Max. hitch load W2
Trailer loading weight W3 (Max. capacity)
Total weight W4
930 mm
(36.6 in.)
820 mm
(32.2 in.)
550 kg
(1210 lbs.)
250 kg
(550 lbs.)
800 kg
(1765 lbs.)
1100 kg
(2425 lbs.)
Lower link end max. lifting weight W0
The max. allowable load which can be put on the lower link end
Implement weight W1
The implement's weight which can be put on the lower link
Max. hitch load W2
The max. loading weight for hitching
Trailer loading weight W3
The max. loading weight for trailer (without trailer's weight)
T
otal weight W4
The max. loading weight for trailer with trailer's weight
NOTE :
• Implement size may vary depending on soil operating conditions.
•
Strictly follow the instructions outlined in the operator’s manual of the mounted or trailed machinery or
trailer, and do not operate the combination tractor-machine or tractor-trailer unless all instructions have
been followed.
Page 27
IMPLEMENT LIMITATIONS
BX1880, BX2380, BX2680
23
• When you use the forestry application, there are following hazards:
– toppling trees, primarily in case a rear-mounted-tree-grab-crane is mounted at the rear of the tractor
penetrating objects in the operator’s enclosure, primarily in case a winch is mounted at the rear of the
–
tractor
To deal with these hazards and other related hazards, the tractor requires optional equipments such as
OPS (operator-protective-structure), FOPS (falling-object-protective-structure), and so on. These optional
equipments, however, are not available for this tractor. Without optional equipments such as OPS and
FOPS, the use of the tractor is limited to tractor-specific-applications like transport and stationary work.
Page 28
IMPLEMENT LIMITATIONS
24
BX1880, BX2380, BX2680
Implement weight list
ImplementRemarksBX1880BX2380 and BX2680
Max. cutting width
Mid-mount
Max. weight
Max. cutting width
Rotary-Cutter (1 Blade)
Max. weight
Mower
Max. cutting width
Rear-mount (2 or 3 Blade)
Max. weight
Flail-mowerMax. cutting width
Sickle barMax. cutting width
Max. tilling width
Rotary tiller
Max. weight
Bottom plowMax. size12 x 1 in.14 x 1 in.
Disc plowMax. size22 x 1 in.22 x 1 in.
CultivatorMax. size
Max. harrowing width
Disc harrow
Max. weight
SprayerMax. tank capacity
Front blade
Rear blade
Front loader
Box blade
Snow blower (Front)
Max. cutting width
Sub frameNecessaryNecessary
Max. cutting width
Max. weight
Max. lifting capacity
(Bucket pivot pin, Max.
height)
Max. width
Max. cutting width
Max. weight
Max. working width
137 cm
(54 in.)
95 kg
(210 lbs.)
107 cm
(42 in.)
159 kg
(350 lbs.)
122 cm
(48 in.)
220 kg
(486 lbs.)
107 cm
(42 in.)
122 cm
(48 in.)
107 cm
(42 in.)
183 kg
(404 lbs.)
122 cm
(48 in.)
1 Row
122 cm
(48 in.)
191 kg
(421 lbs.)
150 L
(40 U.S.gals.)
137 cm
(54 in.)
152 cm
(60 in.)
112 kg
(248 lbs.)
*1
335 kg
(739 lbs.)
122 cm
(48 in.)
152 cm
(60 in.)
170 kg
(375 lbs.)
127 cm
(50 in.)
152 cm
(60 in.)
134 kg
(295 lbs.)
122 cm
(48 in.)
181 kg
(400 lbs.)
152 cm
(60 in.)
262 kg
(577 lbs.)
107 cm
(42 in.)
122 cm
(48 in.)
127 cm
(50 in.)
197 kg
(435 lbs.)
122 cm
(48 in.)
1 Row
122 cm
(48 in.)
249 kg
(549 lbs.)
150 L
(40 U.S.gals.)
152 cm
(60 in.)
152 cm
(60 in.)
112 kg
(248 lbs.)
335 kg
(739 lbs.)
122 cm
(48 in.)
152 cm
(60 in.)
170 kg
(375 lbs.)
127 cm
(50 in.)
*1
(Continued)
Page 29
IMPLEMENT LIMITATIONS
BX1880, BX2380, BX2680
25
ImplementRemarksBX1880BX2380 and BX2680
Snow blower (Front)
Max. weight
160 kg
(353 lbs.)
Sub frameNecessaryNecessary
Post hole diggerDigging depth
Rotary broomCleaning width
Max. load capacity
114 cm
(45 in.)
119 cm
(47 in.)
*2
800 kg
(1765 lbs.)
Trailer
Max. weight
1100 kg
(2425 lbs.)
NOTE :
• Y
ou cannot attach backhoes to the tractor.
• Implement size may vary depending on soil operating conditions.
*1 The valve contains the weight of KUBOTA standard bucket.
*2 Reduce speed and trailer loads when operating in slippery conditions or when operating on slopes and using front wheel drive.
160 kg
(353 lbs.)
114 cm
(45 in.)
119 cm
(47 in.)
800 kg
(1765 lbs.)
1100 kg
(2425 lbs.)
*2
Page 30
IMPLEMENT LIMITATIONSFRONT LOADER
26
BX1880, BX2380, BX2680
FRONT LOADER
Check fixation points on the body of the tractor where
the front loader must be installed.
Install the front loader frame to the frame of the tractor
as shown in the following figures.
LocationBolt/NutRequired Torque
Main framesM14 bolts or nuts
147 N⋅m
(15.0 kgf⋅m)
[108 lbf⋅ft]
WEIGHT OF THE IMPLEMENTS
AS THE REAR BALLAST
WARNING
To avoid serious injury or death:
• For tractor stability and operator's safety, the
rear ballast should be added to the rear of the
tractor in the form of 3-point counter weight and
the rear wheel ballast. The amount of the rear
ballast will depend on the application.
(1) 6-M14 bolts
DANGER
To avoid personal injury or death:
• Make special attention when lifting the load,
keep the bucket correctly positioned to prevent
spillages.
IMPORTANT :
• Not all risks are listed.
• Refer to the front loader operator’s manual.
Implement as Counter Weight
Box Blade
Rear Blade
Approx. 190 kg (420 lbs.)
Rotary Tiller
Ballast Box
Page 31
INSTRUMENT PANEL, SWITCHES, AND HAND CONTROLS
BX1880, BX2380, BX2680
27
INSTRUMENT PANEL AND CONTROLS
INSTRUMENT PANEL AND CONTROLS
INSTRUMENT PANEL, SWITCHES, AND HAND CONTROLS
(1) Easy Checker™…47
achometer…49
(2) T
(3) Hazard light switch…28
(4) Turn signal light switch…28
(5) Head light switch…28
(6) Fuel gauge…48
(7) Coolant temperature gauge…48
(8) Hour meter…49
(9) Key switch…28
(10) Tilt lever [BX2380 and BX2680]…28
(11) Hood open lever…29
Page 32
INSTRUMENT PANEL AND CONTROLS
28
BX1880, BX2380, BX2680
1. Key switch
(A) Off
(B) On
Preheat
(C)
(D) Start
INSTRUMENT PANEL, SWITCHES, AND HAND CONTROLS
(B)
(1) Head light switch
On
(A)
Off
4. Hazard light switch
2. Tilt lever [BX2380 and BX2680]
Adjust the steering wheel to proper position. To adjust
the steering wheel, pull the tilt lever.
(1) Tilt lever
3. Head light switch
To turn on the head lights, turn the head light switch
T
clockwise.
to turn off the head lights.
urn the head light switch counterclockwise
1. When
lights
pressing the hazard-light-switch, the hazard
flash along with the indicator on the
instrument panel.
2. When pressing the hazard-light-switch again, the
hazard lights turn off.
NOTE :
• The hazard-light-switch is operative when the
key switch is only on position.
(1) Hazard light switch(A) Push on-off
5. Turn signal light switch
To indicate a right turn, turn the turn signal light switch
clockwise.
To
indicate a left turn, turn the turn signal light switch
counterclockwise.
When the left or right turn signal is activated in
combination with the hazard lights, the indicated turning
light will flash and the other light will stay on.
NOTE :
• Be sure to return switch to center position after
turning.
Page 33
INSTRUMENT PANEL, SWITCHES, AND HAND CONTROLS
BX1880, BX2380, BX2680
29
(B)
(1) Turn signal light switch
Right turn
(A)
Left turn
6. Hood open lever
The hood-open-lever is the lever to open the hood.
o
open the hood, pull the hood-open-lever to release
T
the latch.
INSTRUMENT PANEL AND CONTROLS
(1) Hood
(2) Hood open lever
(A)
Pull
Page 34
INSTRUMENT PANEL AND CONTROLS
30
BX1880, BX2380, BX2680
FOOT CONTROLS AND HAND CONTROLS
FOOT CONTROLS AND HAND CONTROLS
(1) Brake pedal…31, 32
(2) Parking brake lock pedal…31
(3) 3-point hitch lowering speed knob…58
(4) Cutting height control dial…60
(5) PTO select lever…52
(6) PTO clutch lever…52
(7) Differential lock pedal…50
(8) Speed set rod [BX2380 and BX2680]…34, 34
(9) Hand accelerator lever…33
, 32
(10) Speed control pedal…33
(11) Auxiliary hydraulic control lever (if equipped)…62
(12) Lock lever (if equipped)…62
(13) Hydraulic control lever…58
(14) Front wheel drive lever…32
(15) Range gear shift lever (Hi-Lo)…32
(16) Operator's seat…31
(17) Seat belt…31
Page 35
FOOT CONTROLS AND HAND CONTROLS
BX1880, BX2380, BX2680
31
INSTRUMENT PANEL AND CONTROLS
1. Operator's seat
WARNING
To avoid serious injury or death:
• Make adjustments to the seat only while the
tractor is stopped.
• Make sure that the seat is completely secured
after each adjustment.
• Do not allow any person other than the operator
to ride on the tractor.
[BX1880]
When operating hydraulic control lever, open the arm
rest RH up to 130 deg.. Opening the arm rest RH up to
130 deg. will prevent your elbow from hitting the arm
rest RH.
IMPORTANT :
• After adjusting the operator's seat, be sure to
check that the seat is properly locked.
• Be sure the operator's seat is out of contact
with the top link.
2. Seat belt
WARNING
To avoid serious injury or death:
• Always use the seat belt when the ROPS is
installed.
• Do not use the seat belt if the tractor is not
equipped with ROPS.
Adjust the seat belt for proper fit and connect the seat
to the buckle. The seat belt is auto-locking retractable
type.
[BX2380 and BX2680]
(1) Seat
(2) Position adjust lever
(3) Backrest tilt adjust lever
(4) Arm rest
(5) Seat belt
(6) Hydraulic control lever
(A) Pull up
(B) Pull
(C) 100 deg.
(D) 130 deg.
Travel adjustment
Pull up the position-adjust-lever and slide the seat
backward or forward, as required. The seat will lock in
position when the position-adjust-lever is released.
Tilt adjustment [BX2380 and BX2680]
Pull the backrest-tilt-adjust-lever and tilt the backrest to
the desired position.
Arm rest
Arm rest LH opens to 100 deg..
Arm rest RH opens to 130 deg..
(1) Seat belt
3. Brake pedal and parking brake
lock pedal
WARNING
To avoid serious injury or death:
• Do not brake suddenly.
An accident may occur as a result of a heavy
towed load shifting forward or loss of control.
• To avoid skidding and loss of steering control
when driving on icy, wet, or loose surfaces,
make sure that the tractor is correctly ballasted,
operated at reduced speed, and operated with
the front wheel drive engaged if equipped.
• The braking characteristics are different
between 2-wheel drive and 4-wheel drive. Know
the difference between 2-wheel drive and 4wheel drive and use them carefully.
Page 36
INSTRUMENT PANEL AND CONTROLS
32
BX1880, BX2380, BX2680
FOOT CONTROLS AND HAND CONTROLS
• Engage 4-wheel drive for 4-wheel braking when
traveling down a slope.
• It is recommended that the operator practice
engaging and disengaging the parking brake on
a flat surface without the engine running before
operating the tractor for the first time.
To set the parking brake
1. Depress the brake pedal.
2. Latch the brake pedal on pushing and holding the
parking-brake-lock-pedal.
3. Release the brake pedal.
4. Range gear shift lever (Hi-Lo)
You can shift the range gear shift lever only when
tractor is completely stopped.
WARNING
To avoid serious injury or death:
• Make sure that the range-gear-shift-lever is fully
engaged into the high
position before climbing or descending a slope.
IMPORTANT :
Do not force the range-gear-shift-lever.
• If it is difficult to shift the range-gear-shift-lever
into the neutral “N” position, you should
attempt the following procedure.
1. Depress the brake pedal firmly for several
seconds.
2. Without reducing the brake pedal force, shift
the range-gear-shift-lever.
• If it is difficult to shift the range-gear-shift-lever
into the low
position or the high position
from the neutral “N” position, you should
attempt the following procedure.
1. Slightly depress the speed control pedal to
rotate the gears inside of transmission.
2. Release the speed control pedal to the
neutral “N” position.
3. Shift the range-gear-shift-lever.
• To avoid damage of transmission, stop tractor
before shifting between ranges.
brake lock pedal while depressing the brake pedal
(1) Range gear shift lever (Hi-
Lo)
(A) Low
(B) Neutral position
(C) High
5. Front wheel drive lever
Use the lever to engage the front wheels with the
tractor stopped.
WARNING
To avoid serious injury or death:
Page 37
FOOT CONTROLS AND HAND CONTROLS
BX1880, BX2380, BX2680
33
• Do not engage the front wheel drive when
traveling at road speed.
• When driving on icy, wet, or loose surfaces,
make sure that the tractor is correctly ballasted
to avoid skidding and loss of steering control.
Operate the tractor at reduced speed and
engage the front wheel drive.
• An accident may occur if the tractor is suddenly
braked, such as by heavy towed loads shifting
forward or loss of control.
• The braking characteristics are different
between 2-wheel drive and 4-wheel drive. Know
the difference and use carefully.
Shift the lever to the on
position to engage the front
wheel drive.
INSTRUMENT PANEL AND CONTROLS
(1) Hand accelerator lever
(A) Increase
(B) Decrease
7. Speed control pedal
WARNING
To avoid serious injury or death:
• Do not operate the tractor if it moves on level
ground with your foot off the speed-controlpedal.
(1) Front wheel drive lever
(A) On
(B) Off
IMPORTANT :
• To avoid damage of transmission, when the
front wheel drive lever is not smoothly shifted,
slightly depress forward or rearward on the
speed control pedal.
• Tires will wear quickly if front wheel drive is
engaged on paved roads.
Front wheel drive is effective for the following jobs:
• When greater pulling force is needed, such as
working in a wet field, when pulling a trailer, or
when working with a front-end-loader
• When working in sandy soil
• When working on a hard soil where a rotary tiller
might push the tractor forward
• Additional braking at reduced speed
6. Hand accelerator lever
Pulling the hand-accelerator-lever back (the
position) increases engine speed, and pushing it
forward (the position) decreases engine speed.
(1) Speed control pedal
(2) Stopper bolts
(A) Forward
(B) Reverse
IMPORTANT :
• To prevent serious damage to the HST, do not
adjust the stopper bolts.
Depress the forward pedal with the toe of your
Forward pedal
Reverse pedal
right foot to move forward.
Depress the reverse pedal with the heel of
your right foot to move backward.
NOTE :
• When you stand up from the seat with the
speed-control-pedal stepped on, the engine will
stop regardless of whether the machine is
moving or not. This is because the tractor is
Page 38
INSTRUMENT PANEL AND CONTROLS
34
BX1880, BX2380, BX2680
equipped with the operator-presence-controlsystem (OPC).
8. Speed set device [BX2380 and
BX2680]
The speed-set-device is designed for tractor-operating-
ficiency
ef
provide a constant forward operating speed by
mechanically holding the speed-control-pedal at a
selected position.
and operator's comfort. This device will
FOOT CONTROLS AND HAND CONTROLS
(1) Speed control pedal(2) Speed set rod
8.1 How to use the speed set device
[BX2380 and BX2680]
To engage the speed set device
1. Accelerate
control-pedal.
2. Push and hold the speed-set-rod downward to on
position.
3. Release the speed-control-pedal.
4. Release the speed-set-rod.
Desired speed will be maintained.
To disengage the speed set device
1. Depress the brake pedal.
IMPORTANT :
prevent the damage of the speed-set-device,
• To
do not depress the reverse pedal when the
speed-set-device is engaged.
NOTE :
• If you step on the speed-control-pedal on the
forward acceleration side, the speed-set-device
will disengage.
• The speed-set-device will not operate in
reverse.
speed
to desired level using the speed-
(1) Speed control pedal
(2) Speed set rod
On
(A)
(B) Off
ACCESSORY
1. 12 V electric outlet
You may use the 12 V electric outlet to connect an
auxiliary light or other devices.
IMPORTANT :
Do not use as a cigarette lighter.
•
• Do not use when wet.
NOTE :
• Do not connect a light or other device that
draws more than 120 watts to 12 V electric
outlet. The battery may discharge very rapidly
or the outlet may fail.
Page 39
ACCESSORY
BX1880, BX2380, BX2680
35
(1) 12V electric outlet
2. Accessory box
INSTRUMENT PANEL AND CONTROLS
4. Glove box [BX2380 and BX2680]
(1) Glove box
(1) Accessory box
NOTE :
• The inside of the accessory box is not
completely water-proof nor dust-proof.
When you keep valuables in the accessory box,
be careful not to wet nor dirty it.
3. Operator's manual holder
[BX1880]
(1) Holder(2) Bag
Page 40
PRE-OPERATION CHECKDAILY CHECK ITEMS BEFORE OPERATION OF THE TRACTOR
36
BX1880, BX2380, BX2680
PRE-OPERATION CHECK
DAILY CHECK ITEMS BEFORE
OPERATION OF THE TRACTOR
To prevent trouble from occurring, it is important to
know the condition of the tractor well.
WARNING
To avoid serious injury or death:
• Be sure to check and service the tractor on a
level surface with the engine shut off and the
parking brake on and the implement lowered to
the ground.
Check the condition of the tractor before starting it.
Check items
• Walk around inspection
• Checking the engine oil level
• Checking the transmission oil level
• Checking the coolant level
• Cleaning the grill and the radiator screen
• Checking the air cleaner evacuator valve when
used in a dusty place
• Checking the brake pedal
• Checking the indicators, the gauges, and the meter
• Checking the lights
• Checking the wire harness
• Checking the seat belt and ROPS
• Checking the movable parts
• Refuel
See 2. Checking the fuel gauge and refueling on
page 75.)
• Care of safety labels
See 1. Care for safety labels on page 15.
Page 41
STARTING THE ENGINEOPERATING THE ENGINE
BX1880, BX2380, BX2680
37
OPERATING THE ENGINE
WARNING
To avoid serious injury or death:
• Read and understand “Safe operation” in the
front of this manual.
• Read and understand the safety labels located
on the tractor.
• To avoid the danger of exhaust fume poisoning,
do not operate the engine in a closed building
without proper ventilation.
• Never start the engine while standing on
ground. Start the engine only from the
operator's seat.
• Make it a rule to set all shift levers to the neutral
positions and to place the PTO lever in the off
position before starting the engine.
See PRECAUTIONS FOR OPERATING THE
TRACTOR on page 6, PRECAUTIONS FOR PARKING
THE TRACTOR on page 8, and PRECAUTIONS FOR
SERVICING THE TRACTOR on page 9.
2. Place the PTO-clutch-lever in the off position.
IMPORTANT :
• Do not use starting fluid or ether.
• To protect the battery and the starter, make sure
that the starter is not continuously turned for
more than 30 seconds.
STARTING THE ENGINE
IMPORTANT :
• Because of safety devices, the engine will not
start except when the speed-control-pedal is in
neutral position and the PTO-clutch-lever is in
the off position respectively.
1. Make sure that the parking brake is set.
See 3.1 How to use the parking brake on page 32 if
the parking brake is not set.
(1) PTO clutch lever
(A) On
(B) Off
3. Place the speed-set-rod in the off position [BX2380
and BX2680].
(1) Speed set rod [BX2380 and
BX2680]
(A) On
(B) Off
Page 42
OPERATING THE ENGINESTARTING THE ENGINE
38
BX1880, BX2380, BX2680
4. Place the
speed-control-pedal in the neutral
position.
(1) Speed control pedal
NOTE :
• The speed-control-pedal
automatically
returns to the neutral position when the
operator's foot is released from the pedal.
5. Place the range-gear-shift-lever (Hi-Lo) in the
neutral “N” position.
(1) Auxiliary hydraulic control
lever
Lock lever
(2)
7. Move
the hydraulic control lever forward (lowered
(down)
position) to lower the implement.
(A)
Lock
(1) Range gear shift lever (Hi-
Lo)
(A) Low
6. Place the lock lever in the lock
(B)
Neutral
(C) High
position to lock the
auxiliary-hydraulic-control-lever if the tractor is
equipped with the auxiliary-hydraulic-control-lever.
(1) Hydraulic control lever
(A) Lowered
Neutral position
(B)
(C) Raised
Check that the implement is down at the lowest
position after
moving the hydraulic control lever
forward.
8. Set the hand-accelerator-lever to about 1/2 way.
(1) Hand accelerator lever
(A) Increase
(B)
Decrease
Page 43
STARTING THE ENGINEOPERATING THE ENGINE
BX1880, BX2380, BX2680
39
9. Insert the key into the key switch and turn the key to
position.
on
the
(A) Off
(B) On
(C)
Preheat
(D) Start
10. Check the Easy Checker™ lamps.
IMPORT
•
ANT :
Daily checks with the Easy Checker™ only
are not sufficient. Never fail to conduct daily
checks carefully by referring to 8. Checking
the gauges, the meters, and the Easy
Checker™ on page 78.
11. Turn the key to the preheat
position and hold it
as follows.
the
For
appropriate preheating time, refer to the
following table.
TemperaturePreheating time
Over 0 ℃ (32 ℉)2 sec. to 3 sec.
-5 ℃ to 0 ℃
(23 ℉ to 32 ℉)
-15 ℃ to -5 ℃
(5 ℉ to 23 ℉)
5 sec.
10 sec.
NOTE :
• The preheat indicator
Checker™ comes
on while engine is being
lamp
in the Easy
preheated.
12. Turn the key to the start
position and release it
when the engine starts.
In cold
weather, if the engine fails to start after 10
seconds, turn off the key for 30 seconds. Then
repeat steps 11 and steps 12 (See 1. Cold weather
starting of the engine on page 39).
13. Check to see that all the lamps on the Easy
Checker™ are off.
When the key is turned to the on
coolant-temperature-indicator-lamp
fuel-indicator-lamp
needles of
the fuel gauge, the coolant-temperature-
only should come on and the
position, the
and the low-
gauge, and the tachometer move up and return.
See 2.1 Easy Checker™ on page 47.
1. Cold weather starting of the
engine
When the ambient temperature is as follows and the
engine is very cold, you may fail to start the engine.
Ambient temperaturebelow -5 ℃ (23 ℉)
To protect the battery and the starter, make sure not to
turn the
starter continuously for more than following
seconds.
Continuous turning limit of the starter30 seconds
2. Block heater (option)
A block heater is available as an option from your
dealer.
block heater will assist you in starting your tractor
The
when the ambient temperature is as follows.
Ambient temperaturebelow -15 ℃ (5 ℉)
STOPPING THE ENGINE
(1) Turn signal/hazard light indi-
cator
(2) Preheat
Electrical charge
(3)
(4) Engine oil pressure
(5) Coolant temperature indica-
tor
(6) Low fuel indicator
(7) Key switch
1. After slowing the engine to idle, turn the key to the
stop position.
Page 44
OPERATING THE ENGINEWARMING UP OF THE ENGINE
40
BX1880, BX2380, BX2680
2. Remove the key.
NOTE :
• If the key does not stop the engine, consult
your local KUBOTA Dealer.
WARMING UP OF THE ENGINE
WARNING
To avoid serious injury or death:
• Be sure to set the parking brake during warmup of the engine.
• Be sure to set all shift levers to the neutral
positions and to place the PTO-clutch-lever in
the off position during warm-up of the
engine.
For following minutes after the engine start-up, allow
the engine to warm up without applying any load.
Allowing the engine to warm up is to allow oil to reach
every engine-part.
Warming up time5 minutes
If the load should be applied to the engine without this
warm-up period, trouble such as seizure, breakage, or
premature wear may develop.
1. Warm-up of the engine and
transmission oil in the low
temperature range
IMPORTANT :
• Do not operate the tractor under full load
condition until it is sufficiently warmed up.
Hydraulic oil serves as transmission fluid. In cold
weather, the oil may be cold with increased viscosity.
The oil with increased viscosity can cause delayed oil
circulation or abnormally low hydraulic pressure for
some time after engine start-up. Delayed oil circulation
or abnormally low hydraulic pressure in turn can result
in premature wear in the hydraulic system or
malfunctions such as resistance in the speed-controlpedal and difficulty engaging the range-gear-shift-lever.
To prevent the premature wear in the hydraulic system
or malfunctions of controls, check the following
instructions.
Warm up the engine according to the following tables.
Ambient temperatureWarm-up time requirement
Above 0 ℃ (32 ℉)At least 5 minutes
-10 ℃ to 0 ℃
(14 ℉ to 32 ℉)
-20 ℃ to -10 ℃
(-4 ℉ to 14 ℉)
Below -20 ℃ (-4 ℉)More than 15 minutes
5 minutes to 10 minutes
10 minutes to 15 minutes
JUMP STARTING THE ENGINE
Follow the instructions of jump starting of the engine to
safely start the engine.
WARNING
To avoid serious injury or death:
• Battery gases can explode. Keep cigarettes,
sparks, and flames away from battery.
• If the tractor battery is frozen, do not jump start
the engine.
• Do not connect other end of negative (-) jumper
cable to negative (-) terminal of the tractor
battery.
• When taking the dead battery, putting the
battery, and fixing the battery, do not allow the
positive (+) terminal of the battery to touch
other parts.
• To prevent short circuit, before connecting
jumper cables, make sure to remove the metalbattery-holder.
IMPORTANT :
• The tractor has a 12 volt negative (-) ground
starting system.
• Use only the same voltage for jump starting.
• Use of a higher voltage source on the tractors
electrical system could result in severe damage
to the tractors electrical system.
Use only matching voltage source when jump
starting in a low battery condition or a dead
battery condition.
• Since the metal-battery-holder can crack, do not
tighten it too much.
Connect cables in numerical order.
Disconnect in reverse order after use.
rpm of warm-up engineat about 50% of rated rpm
Page 45
(1) Dead battery
BX1880, BX2380, BX2680
41
Jumper cables
(2)
(3)
Engine block or frame
(4) Helper battery
OPERATING THE ENGINE
1. Bring
the helper vehicle with a battery of the same
voltage
as the disabled tractor within easy cable
reach.
IMPORTANT :
• The helper vehicle must not touch the
disabled tractor.
2. Engage the parking brakes of both vehicles and put
the shift levers in the neutral position. Shut both
engines off.
3. Put on safety goggles and rubber gloves.
4. Take the dead battery out and put it on the step of
the tractor.
5. Make sure that the vent caps are securely in place
if equipped.
6. Attach the red clamp to the positive (red, (+) or
pos.) terminal of the dead battery, and clamp the
other end of the same cable to the positive (red, (+)
or pos.) terminal of the helper battery.
7. Clamp the other cable to the negative (black, (-) or
neg.) terminal of the helper battery.
8. Clamp the other end of the cable, which is clamped
to the negative terminal of the helper battery, to the
engine block or frame of the disabled tractor as far
from the dead battery as possible.
9. Start the helper vehicle and let its engine run for a
few moments. Start the disabled tractor.
10. Disconnect the jumper cables in the exact reverse
order of attachment.
See steps in order of step 8., step 7., and step 6..
11. Put the battery back and fix it.
Page 46
OPERATING THE TRACTOROPERATING NEW TRACTOR
42
BX1880, BX2380, BX2680
OPERATING THE TRACTOR
OPERATING NEW TRACTOR
How a new tractor is used and maintained determines
the life of the tractor.
A new tractor just off the factory production line has
been, of course, tested, but the various parts are not
accustomed to each other. So you should take care of
the tractor. You should operate the tractor as follows for
the first 50 hours until the various parts become
broken-in.
• Operate the tractor at a slower speed
• Avoid excessive work or operation of the tractor
The manner which the tractor is used during the
breaking-in period greatly affects the life of your tractor.
Therefore, to obtain the maximum performance and the
longest life of the tractor, it is very important to properly
break-in your tractor. In using a new tractor, follow the
following precautions.
Do not operate the tractor at full speed for the first
50 hours.
• Do not start the tractor quickly. Do not apply the
brakes suddenly.
• In winter, operate the tractor after fully warming up
the engine.
• Do not run the engine at speeds faster than
necessary.
• On rough roads, slow down to suitable speeds.
Do not operate the tractor at fast speed.
The preceding precautions are not limited only to new
tractors, but to all tractors. But you should especially
follow the preceding precautions in the case of new
tractors.
Changing lubricating oil for new tractors
The lubricating oil is especially important in the case of
a new tractor. If the various parts are not broken-in and
are not accustomed to each other, small metal grit may
develop during the operation of the tractor. Small metal
grit may wear out or damage the parts. Therefore, you
should take care of the lubricating oil to change a little
earlier than would ordinarily be required.
For further details of change interval hours, see
SERVICE INTERVALS on page 69.
• Always keep steps and floor clean to avoid slippery
conditions.
OPERATING THE FOLDABLE
ROPS
WARNING
To avoid serious injury or death:
• When raising or folding the ROPS, apply
parking brake, stop the engine, and remove the
key.
Always raise or fold the ROPS from a stable
position at the rear of the tractor.
• Fold the ROPS down only when absolutely
necessary and fold it up and lock it again as
soon as possible.
• Before proceeding to fold ROPS, check for any
possible interference with installed implements
and attachments. If interference occurs, contact
your KUBOTA Dealer.
1. Folding the ROPS
1. Loosen the holding knob bolts.
(1) Holding knob bolts
GETTING ON AND OFF THE
TRACTOR
• Never try to get on or off a moving tractor or to jump
off the tractor to exit.
• Face the tractor when getting into or out of the
tractor. Do not use the controls as hand-holds to
prevent inadvertent machine movements.
Page 47
OPERATING THE FOLDABLE ROPSOPERATING THE TRACTOR
BX1880, BX2380, BX2680
43
2. Remove both set pins.
(1) Set pins(2) Snap pins
(1) Set pins(2) Snap pins
3. Fold the ROPS.
CAUTION
To avoid personal injury:
• Hold the ROPS tightly with both hands and
fold the ROPS slowly and carefully.
(1) ROPS
4. Align set pin holes and insert both set pins. Secure
set pins with the snap pins.
CAUTION
To avoid personal injury:
• Make sure that both set pins are properly
installed and secured with the snap pins.
2. Raising the ROPS to upright
position
1. Remove both snap pins and set pins.
(1) Set pins(2) Snap pins
2. Raise the ROPS to the upright position.
CAUTION
To avoid personal injury:
• Hold the ROPS tightly with both hands and
raise the ROPS slowly and carefully.
Page 48
OPERATING THE TRACTOROPERATING THE FOLDABLE ROPS
44
BX1880, BX2380, BX2680
3. Align set pin holes and insert both set pins. Secure
set pins with the snap pins.
CAUTION
To avoid personal injury:
• Make sure that both set pins are properly
installed as soon as the ROPS is in the
upright position and secured with the snap
pins.
(1) Nut
STARTING THE TRACTOR
1. Adjust the operator's position and engage the seat
belt.
See 1. Operator's seat on page 31 and 2. Seat belt
on page 31.
(1) Set pins(2) Snap pins
4. Tighten the holding knob bolts.
(1) Holding knob bolts
3. Adjusting the foldable ROPS
1. Adjust free fall of the ROPS upper frame regularly.
2. If you feel less friction in folding the ROPS, tighten
the nut until you feel the right friction in the
movement.
[BX1880]
[BX2380 and BX2680]
(1) Seat
(2) Position adjust lever
(3) Backrest tilt adjust lever
(4) Arm rest
(5) Seat belt
(A) Pull up
(B) Pull
(C) 100 deg.
(D) 130 deg.
Page 49
2. Adjust the steering wheel to proper position
BX1880, BX2380, BX2680
45
[BX2380 and BX2680].
CAUTION
To avoid personal injury:
• Do not adjust the steering wheel while the
tractor is in motion.
Pull the tilt lever to adjust the steering wheel.
OPERATING THE TRACTOR
(1) Tilt lever(A) Pull
3. Select positions of the light switches.
See 3. Head light switch on page 28, 4. Hazard light
switch on page 28, and 5. Turn signal light switch
on page 28.
5. Start the engine.
See STARTING THE ENGINE on page 37.
WARNING
To avoid serious injury or death:
• Read and understand “Safe operation” in
the front of this manual.
• Read and understand the safety labels
located on the tractor.
• To avoid the danger of exhaust fume
poisoning, do not operate the engine in a
closed building without proper ventilation.
• Never start the engine while standing on
ground. Start the engine only from the
operator's seat.
• Make it a rule to set all shift levers to the
neutral positions and to place the PTO lever
in the off position before starting the engine.
See PRECAUTIONS FOR OPERATING THE
TRACTOR on page 6, PRECAUTIONS FOR
PARKING THE TRACTOR on page 8, and
PRECAUTIONS FOR SERVICING THE TRACTOR
on page 9.
(1) Head light switch
(2) Hazard light switch
(3) Turn signal light switch
(A) On (head light)
(B) Off (head light)
4. Check the brake pedal.
a. Depress the brake pedal.
b. Depress the parking brake lock pedal.
c. Release the brake pedal.
Make sure to latch the brake pedal with the parking
brake lock pedal. Use both right and left feet for the
procedure.
See 3. Brake pedal and parking brake lock pedal on
page 31 and “To set the parking brake” in 3.1 How
to use the parking brake on page 32.
(C) Push on-off (hazard light)
(D) Right turn
(E) Left turn
Page 50
OPERATING THE TRACTORSTOPPING THE TRACTOR
46
BX1880, BX2380, BX2680
6. Raise the Implement.
Move the
raised (up)
hydraulic control lever rearward (the
position).
See 1. Hydraulic control on page 58.
(1) Hydraulic control lever
(A) Lowered
Neutral position
(B)
(C) Raised
7. Select the travel speed.
See 4. Range
gear shift lever (Hi-Lo) on page 32
and 5. Front wheel drive lever on page 32.
8. Accelerate the engine.
See 6. Hand accelerator lever on page 33.
9. Unlock the parking brake.
See “To release the parking brake” in 3.1 How to
use the parking brake on page 32.
10. Depress the speed control pedal.
See 7. Speed control pedal on page 33.
[BX2380 and BX2680]
(1) Speed control pedal
(2) Speed set rod
(A)
On
(B) Off
(1) Speed control pedal
(2) Stopper bolts
(A)
Forward
[BX2380 and BX2680] In
(B) Reverse
addition to the preceding
section, see 8. Speed set device [BX2380 and
BX2680] on page 34 and 8.1 How to use the speed
set device [BX2380 and BX2680] on page 34.
STOPPING THE TRACTOR
1. Slow the engine down.
2. Depress the brake pedal.
After the tractor has stopped, disengage the PTO
3.
clutch.
(1) PTO clutch lever
(A) On (engage)
(B)
Off (disengage)
Page 51
CHECK DURING DRIVINGOPERATING THE TRACTOR
BX1880, BX2380, BX2680
47
4. Lower the implement to the ground.
(1) Hydraulic control lever
(A) Lowered
Neutral position
(B)
5. Shift
the range-gear-shift-lever to the neutral
(C) Raised
position.
“N”
CHECK DURING DRIVING
1. Cases to stop the engine
immediately
Immediately stop the engine if:
• The engine suddenly slows down or accelerates
•
Unusual noises suddenly are heard
• Exhaust fumes suddenly become very dark
2. Check items during driving
While driving the tractor, make the following checks to
see that all the parts are functioning normally.
(1) Range gear shift lever (Hi-
Lo)
(A)
Low
6. Set the parking brake.
See “To
set the parking brake” in 3.1 How to use
the parking brake on page 32.
Neutral position
(B)
(C) High
(1) Easy Checker
(2) Fuel gauge
(3) Coolant temperature gauge
• Easy Checker
™
™
(4) Hour meter
(5) Tachometer
See 2.1 Easy Checker™ on page 47.
• Fuel gauge
See 2.2 Fuel gauge on page
48.
• Coolant temperature gauge
See 2.3 Coolant temperature gauge on page 48.
• Hour meter
See 2.5 Hour meter on page 49.
• Tachometer
See 2.6 Tachometer on page 49.
2.1 Easy Checker
™
If trouble should occur at any location while the engine
is running,
the warning lamp in the Easy Checker
corresponding to that location comes on.
If the warning lamps in the Easy Checker™ come on
during operation of the tractor, immediately stop the
engine, and find the cause as the following table.
Never operate the tractor while Easy Checker™ lamp is
on.
™
(1) Brake pedal
(2) Parking brake lock pedal
(A)
Depress
(B) Push down the parking
brake lock pedal while depressing the brake pedal
NOTE :
• For checking and servicing of your tractor,
consult your local KUBOTA Dealer for
instructions.
Page 52
OPERATING THE TRACTORCHECK DURING DRIVING
48
BX1880, BX2380, BX2680
2.2 Fuel gauge
The fuel gauge is for the check if the gauge is working.
When the key switch is the on
gauge indicates the fuel level.
When the fuel is close to empty level as shown in the
following figure, the low-fuel-indicator-lamp
If the alternator is not charging the battery,
the electrical charge indicator in the Easy
Checker
If this warning lamp should come on during
Electrical charge
Engine oil pressure
operation of the tractor, check the electrical
charging system or consult your local KUBOTA Dealer.
If the oil pressure in the engine goes below
the prescribed level, the engine oil pressure indicator in the Easy Checker
come on.
If this warning lamp should come on during
operation of the tractor, and this warning
lamp does not go off when the engine is
accelerated to more than 1000 rpm, check
level of engine oil.
See 3. Checking the engine oil level on
page 76.
(5) Engine oil pressure
(6) Coolant temperature indica-
tor
(7) Low fuel indicator
(8) Key switch
™
will come on.
™
will
(1) Fuel gauge
(A) Empty
(B) Full
Be careful not to empty the fuel tank. Otherwise air may
enter the fuel system.
If air should enter the fuel system, you should bleed it.
See 1. Bleeding the fuel system on page 94.
NOTE :
• In case the fuel gauge system becomes
disconnected, the needle will return to the most
bottom position. If the needle of the fuel gauge
returns to the most bottom position, consult
your local KUBOTA Dealer.
Once you turn OFF the key switch and when the
fuel gauge system gets back to normal, the
needle points normal position again.
2.3 Coolant temperature gauge
WARNING
To avoid serious injury or death:
• Do not remove radiator cap until coolant
temperature is well below its boiling point. Then
loosen cap slightly to the stop to relieve any
pressure before removing cap completely.
Page 53
CHECK DURING DRIVINGOPERATING THE TRACTOR
BX1880, BX2380, BX2680
49
2. Keep yourself well away from the tractor for the
following minutes or while the steam blows out.
(1) Coolant temperature gauge
NOTE :
• In case
the coolant-temperature-gauge system
becomes short, the needle will return to the
most bottom position. If the needle of the
coolant-temperature-gauge returns to the most
bottom position, consult your KUBOTA Dealer.
Once you turn OFF and when the coolanttemperature-gauge system gets back to normal,
the needle points normal position again.
2.4 Dealing with the overheated coolant
temperature
When the coolant temperature is nearly or more than
the boiling
“overheating”.
Overheat indication
1. When the coolant temperature stays at 123 ℃
(253.4 ℉), the coolant-temperature-indicator-lamp
point, this temperature is what is called
in the Easy Checker™ comes on.
Keeping yourself away from the tractor
further 10 minutes
3. Check the cooling system after it has sufficient time
to cool down.
Check
that there is no danger such as burn. Get rid
of the causes of overheating according to ENGINE
TROUBLESHOOTING on page 97.
Check the following items:
• Shortage or leakage of the coolant
• Foreign matter on the radiator net
dust and dirt between the radiator fins
• Looseness of fan belt
• Blockage in the radiator tube
See 2. Checking the radiator hoses and the
hose clamps on page 92
2.5 Hour meter
The hour meter indicates in five digits the hours the
tractor has been used as the following table.
Tractor operated hours
From 0.0 Hr to 9999.9 Hrevery 0.1 Hr step
10000 Hr to 99999 Hrevery 1 Hr step
After 99999 Hr99999 Hr stays on
The step that the display
operates
Reference
Red zone range
123 ℃ to 130 ℃
(254 ℉ to 266 ℉)
2. When the coolant temperature stays below 118 ℃
(244.4 ℉
), the coolant-temperature-indicator-lamp
turns off.
If the coolant-temperature-indicator-lamp in the
Easy Checker™
comes on, take the following
actions.
1. Stop operating the tractor in a safe place and keep
the engine unloaded idling. Do not stop the engine
suddenly.
a. Place the PTO-clutch-lever in the off
(disengage)
b. Move the
position.
tractor to the level surface, and apply
the parking brake.
c. Place the hand-accelerator-lever in the engine
idle position, and operate the engine for about
five minutes.
(1) Hour meter
2.6 Tachometer
When the key switch is the on position and the
engine is ON
revolution per minute.
NOTE :
• When the key is turned on, the tachometer
should indicate as follows for just a moment.
Indication of the tachometer4000 rpm
, the tachometer indicates the engine
Page 54
OPERATING THE TRACTORPARKING THE TRACTOR
50
BX1880, BX2380, BX2680
Recommended Engine Speed
ImplementRecommended engine speed
PTO 540Use within yellow range
LoaderUse within orange range
(1) Tachometer
(A) Yellow range
(B) Orange range
PARKING THE TRACTOR
When parking the tractor, be sure to set the parking
brake.
2. Lower all implements to the ground.
3. Place all control levers in their neutral positions.
4. Set the parking brake.
See “To set the parking brake” in 3.1 How to use
the parking brake on page 32.
5. Stop the engine.
6. Remove the key.
If it is necessary to park the tractor on an incline, be
sure to chock the wheels to prevent accidental rolling of
the tractor.
TECHNIQUES FOR OPERATING
THE TRACTOR
1. Differential lock
WARNING
To avoid personal injury or death due to loss of
steering control:
• Do not operate the tractor at high speed with
differential lock engaged.
• Do not attempt to turn with the differential lock
engaged.
• Be sure to release the differential lock before
making a turn in field conditions.
WARNING
To avoid serious injury or death:
Before getting off the tractor
• Always set the parking brake and lower all
implements to the ground.
Leaving the transmission in gear with the
engine stopped will not prevent the tractor from
accidental rolling.
Before getting off the tractor, follow the following
procedure
1. Disengage the PTO.
(B) Push down parking brake
lock pedal while depressing
brake pedal
If one of the rear wheels should slip, depress the
differential lock pedal. Both wheels will then turn
together, which reduce slippage of the rear wheels.
The differential lock is maintained only while the
differential-lock-pedal is depressed.
(1) Differential lock pedal
(A) Press to engage
(B) Release to disengage
IMPORTANT :
• When using the differential lock, always slow
the engine down.
• To prevent damage to power train, do not
engage differential lock when one wheel is
spinning and the other is completely stopped.
• If the differential lock cannot be released in the
preceding manner, alternately press the speedcontrol-pedal forward and backward slightly.
Page 55
TECHNIQUES FOR OPERATING THE TRACTOROPERATING THE TRACTOR
BX1880, BX2380, BX2680
51
2. Precautions for operating the
tractor on a road
WARNING
To avoid serious injury or death:
• When traveling on road with 3-point hitch
mounted implement attached, be sure to have
sufficient front weight on the tractor to maintain
steering ability.
Be sure that the SMV emblem and the warning lamps
are clean and visible. If towed or rear-mounted
equipment obstructs these safety devices, install the
slow-moving-vehicle (SMV) emblem and the warning
lamps on the equipment.
Consult your local KUBOTA Dealer for further details.
• Before descending a slope, shift to a gear low
enough to control speed without using brakes.
4. Precautions for transporting the
tractor safely
• The tractor, if damaged, must be carried on a truck.
Secure the tractor tightly with ropes.
• Follow the instruction as follows when towing the
tractor. Otherwise, the tractor’s powertrain may get
damaged.
– Set the all shift levers to their neutral position.
– If possible, start the engine and select 2WD. If
creep speed is fitted, make sure that creep
speed is disengaged.
– Tow the tractor using its front hitch or drawbar.
– Never tow the tractor faster than following
speed.
Towing speed
10 km/h
(6.2 mph)
5. Directions for use of the power
steering
(1) SMV emblem(2) Bracket
3. Precautions for operating the
tractor on a slopes and rough terrain
WARNING
To avoid serious injury or death:
• Always back the tractor up when the tractor is
going up to a steep slope. Driving forward could
cause the tractor to tip over backward. Stay off
hills and slopes too steep for safe operation of
the tractor.
• Avoid changing gears when the tractor is
climbing or descending a slope.
• If operating the tractor on a slope, never
disengage the shift levers to neutral. Disengage
the shift levers to neutral could cause loss of
control.
• Do not drive the tractor close to the edges of
ditches or banks which may collapse under the
weight of the tractor, especially when the
ground is loose or wet.
• The power steering is activated only while the
engine is running. While the engine is stopped, the
tractor functions in the same manner as tractors
without power steering.
• Turning the steering wheel all the way to the stop
activates the relief valve. Do not hold the steering
wheel in the stop for a long period of time.
• Avoid turning the steering wheel while the tractor is
stopped, or tires may wear out sooner.
• The power-steering-mechanism makes the steering
easier. Be careful when driving on a road at high
speeds.
• Slow down for slopes, rough ground, and sharp
turns, especially when transporting heavy, rear
mounted equipment.
Page 56
PTO (POWER TAKE-OFF)PTO OPERATION
52
BX1880, BX2380, BX2680
PTO (POWER TAKE-OFF)
PTO OPERATION
WARNING
To avoid serious injury or death:
• Before operation of PTO, be sure to select the
position of the PTO-select-lever (mid
rear
• Disengage PTO, stop the engine, and allow all
rotating components to come to a complete
stop before connecting, disconnecting,
adjusting, or cleaning any PTO driven
equipment.
, rear ).
, mid/
(1) Mid PTO
1. PTO select lever
IMPORTANT :
• To avoid shock when loading to the PTO,
reduce the engine accelerator from full to half
speed by pushing up on the engine accelerator
when engaging the PTO. Then open the
accelerator to the full speed.
• To avoid damage of transmission, when the
PTO-select-lever is not smoothly shifted,
slightly shift the PTO-clutch-lever.
The tractor has a 540 rpm rear PTO speed and a
2500 rpm mid PTO speed.
Mid-Rear PTO
To use the mid PTO and the rear PTO at the same
time, shift the PTO-select-lever to the mid-rear PTO
position and the PTO-clutch-lever to the on
position.
Rear PTO
To use the rear PTO, shift the PTO-select-lever to the
rear PTO
the on
position and the PTO-clutch-lever to
position.
2. PTO clutch lever
The PTO-clutch-lever engages or disengages the PTO
clutch which gives the PTO independent control.
IMPORTANT :
• To avoid shock when loading to the PTO,
reduce the engine accelerator from full to half
speed by pushing up on the engine accelerator
when engaging the PTO. Then open the
accelerator to the full speed.
• When you engage the PTO clutch, shift the
PTO-clutch-lever slowly to avoid damage to the
PTO clutch and implement. Do not keep the
PTO-clutch-lever half way.
(1) PTO select lever
(A) Mid PTO position
Mid PTO
To use the mid PTO, shift the PTO-select-lever to the
mid PTO
on
approved implements.
position. The mid PTO is available for KUBOTA
position and the PTO-clutch-lever to the
(B) Mid-Rear-PTO position
(C) Rear-PTO position
Shift the PTO-clutch-lever to the on
engage the PTO clutch. Shift the PTO-clutch-lever to
the off
position to disengage the PTO clutch.
position to
Page 57
PTO OPERATIONPTO (POWER TAKE-OFF)
BX1880, BX2380, BX2680
53
(1) PTO clutch lever
(A) On (engage)
(B) Off (disengage)
NOTE :
• The tractor engine will not start if the PTOclutch-lever is in the engaged ON
position.
• When you stand up from the seat with the PTOclutch-lever at the engaged ON
position, the
engine will stop regardless of the position of
the PTO select lever. This is because that the
tractor is equipped with operator-presencecontrol-system (OPC).
3. PTO shaft cover and PTO shaft
cap
WARNING
To avoid serious injury or death:
• Before connecting or disconnecting a drive
shaft to PTO shaft, be sure that the engine is off
and raise up the PTO-shaft-cover.
Afterward be sure to return the PTO-shaft-cover
to the normal position.
(1) PTO shaft cover
(2) PTO shaft cap
(A) Normal position
(B) Raised position
4. Using stationary PTO
To park the tractor and use the PTO system for chipper
or pump, for example, start the PTO system in the
following steps.
1. Apply the parking brake and place blocks at the
tires.
2. Make sure that all shift levers are in their neutral
position, and start the engine.
3. Set the PTO-select-lever to the Rear-PTO (Rearonly)
4. Get off the seat and tilt up it.
5. Move the seat-lock-lever behind the seat frame in
the arrow direction in the following figure to release
the seat lock, and lift the seat forward.
position.
IMPORTANT :
• The universal joint of the PTO-drive-shaft is
technically limited in its moving angle. Refer to
the PTO Drive Shaft Instructions for proper use.
Keep the PTO-shaft-cover in place at all times. Keep
the PTO-shaft-cap when the PTO is not in use.
(1) Seat lock lever
(2) Seat
(A) Unlock
6. Set the PTO-clutch-lever to the on (engage)
position.
7. Set the engine speed appropriately to provide
recommend rear PTO speed.
Page 58
PTO (POWER TAKE-OFF)PTO OPERATION
54
BX1880, BX2380, BX2680
5.1 Adjusting the length of PTO drive shaft
To adjust the length of the PTO-drive-shaft, refer to the
following instructions.
(1) Seat
PT
O clutch lever
(2)
(3) PTO select lever
(A) On
(B) Off
NOTE :
• If the
(engage)
PTO clutch lever is shifted to the on
position under the following
condition, the engine will stop itself.
– The speed-control-pedal is not in the neutral
position.
– The PTO-select-lever is not in the rear PTO
position.
– The seat is not tilted forward.
1. To
2. Shorten the inner-and-outer-guard-tubes to the
3. Shorten the inner-and-outer-sliding-profile-tubes by
4. Round all sharp edges off, remove burrs, and
adjust the inner-and-outer-guard-tubes, hold the
half shafts next to each other in the shortest
working position, and mark the half shafts in the
shortest working position of the inner-and-outerguard-tubes.
marked position equally.
the same length as the inner-and-outer-guardtubes.
grease sliding profiles.
5. PT
O drive shaft
The PTO-drive-shafts are designed for specific
machines and power requirement.
(1) Inner and outer sliding profile
tubes
(2) Journal cross assy
• When using a PTO-drive-shaft, read the
(3)
Fitting yoke
(4) Safety guard (in, out)
(5)
Chain
operator's
manual of the implement before operating the
implement.
• If it is necessary for using the PTO-drive-shaft,
adjust the length of it.
See 5.1 Adjusting the length of PTO drive shaft on
page 54.
• Make sure that the PTO-drive-shaft is securely
connected at both ends before operating it.
(a) Reference image for step 1.
(b) Reference image for step 2.
(c)
Reference image for step 3.
(d) Reference image for step 4.
(A) 40 mm (1.57 in.)
Page 59
OVERVIEW OF 3-POINT HITCH AND DRAWBAR3-POINT HITCH AND DRAWBAR
BX1880, BX2380, BX2680
55
3-POINT HITCH AND DRAWBAR
OVERVIEW OF 3-POINT HITCH AND DRAWBAR
(1) Top link
(2) Lifting rod (left)
(3)
Check chains
(4) Turnbuckle
(5) Lower link
(6) Top link holder
(7) Lifting rod (right)
(8) Hitch
(9) Holder plate
Use the holder plate to hold the lower link higher while mowing with mid-mount mower only over uneven terrain.
(9) Holder plate
Page 60
3-POINT HITCH AND DRAWBAR3-POINT HITCH
56
BX1880, BX2380, BX2680
3-POINT HITCH
1. Precautions for attaching and
detaching the implements to the 3point hitch
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key.
• Do not stand between the tractor and the
implement unless the parking brake is applied.
• Before attaching or detaching the implement to
the 3-point-hitch, locate the tractor and the
implement on a firm, flat, and level surface.
• Whenever an implement or other attachment is
connected to the tractor by the 3-point-hitch,
slowly move the 3-point-hitch through the full
range of operation and check for interference,
binding, or PTO separation before operating the
machine.
2. Adjusting the lifting rod (right)
3. Adjusting the top link
The proper length of the top link varies according to the
type of implement being used.
NOTE :
• When not using the top link, make it the
shortest length and fix it to the top link holder.
1. Adjust the angle of the implement to the desired
position by shortening or lengthening the top link.
4. Adjusting the check chains
1. Make sure that the check chains are installed as the
following figure.
2. Adjust the turnbuckle to control horizontal sway of
the implement.
3. After adjustment, retighten the lock nut.
WARNING
To avoid personal injury or death:
• Do not extend lifting rod beyond the groove on
the thread rod.
1. Level a 3-point-mounted implement from side to
side by turning the adjusting turnbuckle to shorten
or lengthen the adjustable lifting rod with the
implement on the ground.
2. After adjustment, tighten the lock nut securely. Do
not extend the lift rod beyond the groove on the
threaded rod when extending it.
(1) Turnbuckle(2) Lock nut
HITCH
WARNING
To avoid serious injury or death:
• Never pull from the top link, the rear axle, or any
point above the hitch. If you pull from the top
link, the rear axle, or any point above the hitch,
the tractor can tip over rearward causing
personal injury or death.
(1) Adjusting turnbuckle
(2) Lock nut
(A) Groove
Page 61
(1) Hitch
BX1880, BX2380, BX2680
57
3-POINT HITCH AND DRAWBAR
Page 62
HYDRAULIC UNIT3-POINT HITCH CONTROL SYSTEM
58
BX1880, BX2380, BX2680
HYDRAULIC UNIT
3-POINT HITCH CONTROL
SYSTEM
WARNING
To avoid serious injury or death:
• Before using the 3-point hitch controls, make
sure that no person or object is in the area of
the implement or 3-point hitch.
• Do not stand on or near the implement or
between the implement and tractor when
operating the 3-point hitch controls.
1. Hydraulic control
IMPORTANT :
• Do not operate until the engine is warmed up. If
operation is attempted when the engine is still
cold, the hydraulic system may be damaged.
• If noises are heard when implement is lifting
after the hydraulic control lever has been
activated, the hydraulic mechanism is not
adjusted properly.
If you do not correct the hydraulic control unit,
it will be damaged.
Contact your KUBOTA Dealer for adjustment.
Operating the hydraulic control lever actuates the
hydraulic lift arm, which controls the elevation of the 3point-hitch-mounted implement.
To lower the implement, move the hydraulic control
lever forward (the
move the hydraulic control lever rearward (the
position).
In the slow down position and the slow up position of
the hydraulic control lever in contact with the inner
stopper, you can control the valve with ease in the
following increments at the lower link end.
Increments at the lower link
end
position). To raise the implement,
approximately 6.4 mm (0.25 in.)
(1) Hydraulic control lever
(A) Down
(B) Slow down
IMPORTANT :
• If the 3-point-hitch can not be raised by setting
the hydraulic control lever to the up (raised)
position after long term storage or when
changing the transmission oil, follow the
following air bleeding procedures.
1. Stop the engine.
2. Set the hydraulic control lever to the down
(lowered)
3. Operate the engine at low idle speed for the
following seconds to bleed air from the
system.
Operating the engine at low idle speedat least 30 seconds
position and start the engine.
(C) Neutral
(D) Slow up
(E) Up
2. Lowering speed of 3-point hitch
The lowering speed of the 3-point hitch can be
controlled or locked in similar fashion to a water faucet.
WARNING
To avoid serious injury or death:
• Fast lowering speed may cause damage or
injury. Lowering speed of implement should be
adjusted to two or more seconds.
Turn toward the fast to increase, the slow to reduce,
and the lock firmly to the stop for lock.
Page 63
AUXILIARY HYDRAULICSHYDRAULIC UNIT
BX1880, BX2380, BX2680
59
1. Hydraulic outlet
Hydraulic outlet is useful when adding the hydraulically
operated equipment such as front end loader, front
blade, and so on.
IMPORTANT :
• For the hydraulic outlet, be sure to use the
control valve of the power-beyond-type with the
relief valve. The third line returns to tank for the
operation of the hydraulic block.
(1) 3-point hitch lowering speed
knob
(A) Fast
(B) Slow
(C) Lock
AUXILIARY HYDRAULICS
A hydraulic outlet attaches to the tractor.
WARNING
To avoid serious injury or death:
• Escaping hydraulic fluid under pressure can
have sufficient force to penetrate skin, which
cause serious personal injury.
Before disconnecting lines, be sure to relieve all
pressure.
• Before applying pressure to the hydraulic
system, be sure all connections are tight, and
that lines, tubes, and hoses are not damaged.
• Fluid escaping from a very small hole can be
almost invisible. Use a piece of cardboard or
wood, rather than hands to search for
suspected leaks.
• If someone gets injured by escaping fluid, see a
doctor at once. Serious infection or allergic
reaction will develop if proper medical
treatment is not administered immediately.
(A) Return port
(B) To implement (outlet)
(C) From implement (inlet)
(1) Cardboard
(2) Hydraulic line
(3) Magnifying glass
Max. flow of outlet
No relief valve in the hydraulic block.
14 L/min
(3.7 U.S.gals./min)
When implement is attached, follow the following
procedure.
1. Remove the block cover.
2. Attach the block outlet cover (option).
The block outlet cover is standard part for KUBOTA
Implements
3. Route the implement inlet, outlet, and return pipes
as shown in the figures.
Page 64
HYDRAULIC UNITMOWER LIFT LINKAGE SYSTEM
60
BX1880, BX2380, BX2680
MOWER LIFT LINKAGE
SYSTEM
1. Cutting height control dial
When mounting the Mid-mount mower, turn the cuttingheight-control-dial to the desired height.
For further
manuals of rotary mower.
• RCK60B-23BX
• RCK54-23BX
• RCK48-18BX
• RCK60D-26BX
• RCK54D-26BX.
details, refer to the following operator's
(3)
(1) Cutting height control dial
Hydraulic control lever
(2)
IMPORTANT :
When operating
mower, follow the following procedure.
1. Move the hydraulic lever rearward (the
position) to raise the mower rear links to the
highest position.
2. Set
If you do not follow this procedure, damage of the
mower rear link can result.
the
position.
the tractor without Mid-mount
cutting-height-control-dial to the top
Mower rear link
Page 65
MOWER LIFT LINKAGE SYSTEMHYDRAULIC UNIT
BX1880, BX2380, BX2680
61
2. Hydraulic control unit use reference chart
In order
to use the hydraulics properly, the operator must know the following chart. Though this information may not
be applicable to all types of implements and soil conditions, it is useful for general conditions.
(1) Hydraulic control lever
Implement
Moldboard plow
Disc plow
Harrower (spike type,
springtooth type, and
disc type)
Sub-soiler
W
eeder, ridgerYES
Earthmove, digger
scraper, and manure
fork rear carrier
Mower (mid-and rearmount type), hayrake,
and tedder
Soil condition
Light soil, medi-
um soil, heavy
soil
Hydraulic control
-
Gauge wheel
YES/NO
YES/NO
For implements with gauge
wheels, set the hydraulic
control lever to the lowered(down)
position all way.
(1) Check chains
Adjust the check chains so that the
implement can move 5 cm to 6 cm
The check chains should be tight
enough to prevent excessive implement movement when implement is
Loose
(2.0 in. to 2.4 in.) laterally.
in raised position.
Tighten
Page 66
HYDRAULIC UNITAUXILIARY HYDRAULIC CONTROL VALVE (IF EQUIPPED)
62
BX1880, BX2380, BX2680
AUXILIARY HYDRAULIC
CONTROL VALVE (IF
EQUIPPED)
WARNING
To avoid serious injury or death:
• Escaping hydraulic fluid under pressure can
have sufficient force to penetrate skin, which
cause serious personal injury.
Before disconnecting lines, be sure to relieve all
pressure.
• Before applying pressure to the hydraulic
system, be sure all connections are tight, and
that lines, tubes, and hoses are not damaged.
• Fluid escaping from a very small hole can be
almost invisible. Use a piece of cardboard or
wood, rather than hands to search for
suspected leaks.
• If someone gets injured by escaping fluid, see a
doctor at once. Serious infection or allergic
reaction will develop if proper medical
treatment is not administered immediately.
1. Valve lock
The control valve is equipped with a feature of the
valve lock.
2. Auxiliary hydraulic ports
The auxiliary hydraulic ports are equipped with quick
couplers.
If you do not use the auxiliary hydraulic ports, place the
dust plugs on the quick couplers ends.
(1) Dust plugs
(A) Left (blue)
(B) Right (red)
(C) Backward (yellow)
(D) Forward (white)
3. Connecting the auxiliary hydraulic
control lever and hydraulic hose to
the auxiliary hydraulic port
WARNING
To avoid serious injury or death from crushing:
• Do not utilize the valve lock for machine
maintenance or repair.
• The valve lock is to prevent accidental actuation
when implement is not in use or during
transport.
The control valve is locked in the lock
The lock is not intended and will not prevent a leak
down of the implement during the period of storage.
(1) Lock lever
(A)
Lock
(B)
position.
Unlock
(1) Auxiliary hydraulic control
lever (if equipped)
(A) Blue
(B) Red
(C) Yellow
(D) White
(E) Float
(F) Forward
(G) Left
(H) Right
(I) Backward
(J) Forward left
(K) Forward right
(L) Backward right
Hydraulic outlet ports of first segment
LeverBackwardForward
WhiteIn
Port
YellowOutIn
Pressure
Returning
Out
Page 67
AUXILIARY HYDRAULIC CONTROL VALVE (IF EQUIPPED)HYDRAULIC UNIT
BX1880, BX2380, BX2680
63
Hydraulic outlet ports of second segment
LeverRightLeft
Port
Pressure
Returning
1. Connect
BlueIn
RedOutIn
auxiliary-hydraulic-control-lever in its
the
Out
specified direction and the hydraulic hoses to their
specified ports.
2. Before moving the auxiliary-hydraulic-control-lever,
make sure that the hydraulic hoses for attachments
are connected.
3. Move the auxiliary-hydraulic-control-lever diagonally
(forward left, forward right, and backward right
as shown in the figure).
The first and second segments can be controlled at
once.
IMPORTANT :
To avoid damage of the attachments:
• Do not connect attachments through the
hydraulic motor to the blue port and the red
port. If the auxiliary-hydraulic-control-lever
is moved to the regeneration (right) position,
the seals on the hydraulic motor will be
damaged.
• This control valve is provided with the
regeneration (right) position. When the blue
port and the red port are used to take off
hydraulic power for the hydraulic cylinder,
be sure to connect the blue port to the headend side port of the hydraulic cylinder.
• Make the following connections when using
this control valve to take off hydraulic power
for the hydraulic cylinder.
Colored CouplerHydraulic Cylinder port
Blue and yellowHead-End side
White and redRod-End side
NOTE :
• If you
move the auxiliary-hydraulic-controllever to the float position, it will be held
there by the detent mechanism. To use the
valve as a floating valve with detents,
connect the hydraulic hoses to the white
port and the yellow port.
4. Controlling loader (only if
equipped with loader)
• When moving
forward, the loader will go down.
• When moving the auxiliary-hydraulic-control-lever
backward, the loader will go up.
• When moving the auxiliary-hydraulic-control-lever
to the left, the bucket will roll back.
• When moving the auxiliary-hydraulic-control-lever
to the right, the bucket will dump.
• When moving the auxiliary-hydraulic-control-lever
diagonally, the loader and bucket will work in the
same time.
(A) Float
(B) Down and roll back
(C)
Down
(D) Dump and down
(E) Roll back
Lower
Lowering
the
loader differently.
• Down
When shifting the auxiliary-hydraulic-control-lever
forward, the loader will go down with hydraulic
pressure. This lever position is the first stage for
lowering the loader.
• Float
When shifting the auxiliary-hydraulic-control-lever
further forward until feeling the bump, pressure in
the connector lines is released so the loader will go
down by its own weight. This lever position after the
bump is the second stage. When the operator lets
the hand off from the auxiliary-hydraulic-controllever, it will stay in the second stage position. Shift
the auxiliary-hydraulic-control-lever backward to
place it to the normal position.
the auxiliary-hydraulic-control-lever
(F) Dump1
(G) Normal position
(H) Up
(I) Up and dump
loader has two stages that operate the
Page 68
TIRES, WHEELS, AND BALLASTTIRES
64
BX1880, BX2380, BX2680
TIRES, WHEELS, AND BALLAST
TIRES
WARNING
To avoid serious injury or death:
• Do not attempt to mount a tire on a rim. Only a
qualified person with the proper equipment
should mount a tire on a rim.
• Always maintain the correct tire pressure.
Do not inflate the tires above the recommended
pressure shown in the “Inflation pressure oftires” section.
See 1. Inflation pressure of tires on page 64.
IMPORTANT :
• Do not use tires other than those approved by
KUBOTA.
• When you intend to mount different size of tires
from equipped ones, consult your dealer about
front drive gear ratio for details.
Excessive wear of tires may occur due to
improper gear ratio.
1. Inflation pressure of tires
[BX2380 and BX2680]
Tire sizesInflation Pressure
100 kPa
(1.0 kgf/cm2)
[14 psi]
120 kPa
(1.2 kgf/cm2)
[17 psi]
120 kPa
(1.2 kgf/cm2)
[17 psi]
120 kPa
(1.2 kgf/cm2)
[17 psi]
150 kPa
(1.5 kgf/cm2)
[22 psi]
150 kPa
(1.5 kgf/cm2)
[22 psi]
Rear
Front
26x12.00-12 Turf
26x12.00-12 Bar
26x12.00-12 Ind.
18x8.50-10 Turf
18x8.50-10 Bar
18x8.50-10 Ind.
NOTE :
• Maintain the maximum pressure in front tires, if
using a front loader or when equipped with a
full load of front weight.
Though the tire pressure is factory-set to the prescribed
level, it naturally drops slowly in the course of time.
Thus, check it everyday and inflate as necessary.
[BX1880]
Tire sizesInflation Pressure
24x12.00-12 Turf
Rear
24x12.00-12 Bar
16x7.50-8 Turf
Front
16x7.50-8 Bar
100 kPa
(1.0 kgf/cm2)
[14 psi]
120 kPa
(1.2 kgf/cm2)
[17 psi]
120 kPa
(1.2 kgf/cm
[17 psi]
230 kPa
(2.3 kgf/cm2)
[34 psi]
2
)
2. Dual tires
Dual tires are not approved.
WHEEL TREAD
WARNING
To avoid serious injury or death:
• Support the tractor securely on stands before
removing a wheel.
• Never operate the tractor with a loose rim,
wheel, or axle.
IMPORTANT :
• When re-fitting or adjusting a wheel, follow the
procedure.
1. tighten the bolts to the torques as shown in
the following table.
Page 69
WHEEL TREADTIRES, WHEELS, AND BALLAST
BX1880, BX2380, BX2680
65
ModelsBX1880BX2380 and BX2680
18x8.50-10 Turf,
18x8.50-10 Bar,
18x8.50-10 Ind.
(1) Bolt
Front
Rear
Tightening torques
149.2 N⋅m to 179.0 N⋅m
(15.2 kgf⋅m to 18.3 kgf⋅m)
[110 lbf⋅ft to 132 lbf⋅ft]
108.5 N⋅m to 130.2 N⋅m
(11.1 kgf⋅m to 13.3 kgf⋅m)
[80 lbf⋅ft to 96 lbf⋅ft]
Tire
Tread
16x7.50-8 Turf, 16x7.50-8
Bar
(A) 930 mm
(36.6 in.)
How to jack up the front axle
2. Then recheck as the following table.
See SERVICE INTERVALS on page 69.
Timing to recheck
the bolts
After driving the tractor 200 m (200 yards),
after 1 day (8 hours), and thereafter every
50 hours
NOTE :
• Use the tapered bolts for wheels with beveled or
tapered holes.
1. Front wheels
IMPORTANT :
• Do not turn the front discs to obtain wider tread.
• Always attach tires as shown in the figures in
the following table.
If you not attach the front wheel as illustrated in
the table, transmission parts may be damaged.
You can not adjust width of the front tread.
WARNING
To avoid serious injury or death:
• Before jacking up the tractor, park it on a firm
and level ground and chock the rear wheels.
• Fix the front axle to keep it from pivoting.
• Select jacks that withstand the machine weight
and set them up as shown in the following
figure.
(1) Front axle case(2) Jack points
Page 70
TIRES, WHEELS, AND BALLASTWHEEL TREAD
66
BX1880, BX2380, BX2680
2. Rear wheels
IMPORTANT :
• Do not the turn rear discs to obtain wider tread.
• Always attach tires as shown in the figures in the following table.
If you not attach the rear wheel as illustrated in the table, transmission parts may be damaged.
You can not adjust width of the rear tread.
ModelsBX1880BX2380 and BX2680
Tire24x12.00-12 Turf, 24x12.00-12 Bar26x12.00-12 Turf, 26x12.00-12 Bar, 26x12.00-12 Ind.
Tread
(A) 820 mm
(32.2 in.)
(B) 820 mm
(32.2 in.)
How to jack up rear part of the tractor
WARNING
To avoid serious injury or death:
• Before jacking up the tractor, park it on a firm and level ground and chock the front wheels.
• Fix the front axle to keep it from pivoting.
• Select jacks that withstand the machine weight and set them up as shown in the following figure.
(1) Frame(2) Jack point
Page 71
BALLASTTIRES, WHEELS, AND BALLAST
BX1880, BX2380, BX2680
67
BALLAST
WARNING
To avoid serious injury or death:
• You will need the additional ballast for
transporting the heavy implements. When the
implement is raised, drive slowly over rough
ground, regardless of how much ballast is used.
• Do not fill the front wheels with liquid to
maintain steering control.
1. Front ballast
IMPORTANT :
• Do not overload tires.
• Add no more weight than indicated in the
following table.
Maximum weight
Add weights if needed to improve traction or for
stability. Heavy pulling and heavy rear mounted
implements tend to lift front wheels. Add enough ballast
to maintain steering control and prevent tip over.
Remove weight when no longer needed.
Front end weights (option)
The front end weights can be attached to the bumper.
See your implement operator's manual for required
number of weights or consult your local KUBOTA
Dealer to use it.
NOTE :
• Besides the weight, a front weight bracket and
mounting bolt kit(s) are required for mounting
the weight.
125 kg
(275 lbs.)
matched to job and the ballast should be removed
when it is not needed.
Liquid ballast in rear tires
The weight should be added to the tractor in the form of
liquid ballast.
Water and calcium chloride solution provides safe
economical ballast. Using the liquid ballast properly will
prevent tires, tubes, or rims from damaging. The
addition of calcium chloride is recommended to prevent
the water from freezing. The addition of calcium
chloride for weighting the wheels has the full approval
of the tire companies. See your tire dealer for this
service.
Liquid weight per tire (75 percent filled)
Tire sizes
Slush free at -10 ℃ (14 ℉)
Solid at -30 ℃ (-22 ℉)
[Approx. 1 kg (2 lbs.) CaCl
per 4 L (1 gal) of water]
Slush free at -24 ℃ (-11 ℉)
Solid at -47 ℃ (-52 ℉)
[Approx. 1.5 kg (3.5 lbs.)
CaCl2 per 4 L (1 gal) of water]
Slush free at -47 ℃ (-52 ℉)
Solid at -52 ℃ (-62 ℉)
[Approx. 2.25 kg (5 lbs.)
CaCl2 per 4 L (1 gal) of water]
2
24x12.00-12
[BX1880]
35 kg
(77 lbs.)
38 kg
(84 lbs.)
44 kg
(97 lbs.)
26x12.00-12
[BX2380 and
BX2680]
45 kg
(99 lbs.)
50 kg
(110 lbs.)
56 kg
(123 lbs.)
IMPORTANT :
• Do not fill tires with water or solution more than
the correct percentage of full capacity as shown
in the following table to the level of valve stem
at 12 o'clock position.
(1) Front end weights (option)(2) Front weight bracket (option)
2. Rear ballast
Add weight to rear wheels if needed to improve traction
or for stability. The amount of rear ballast should be
(1) Air
(2) Water
(3) Valve stem
(A) Correct
(B) Incorrect
Page 72
TIRES, WHEELS, AND BALLASTBALLAST
68
BX1880, BX2380, BX2680
CorrectIncorrect
Amount of water
Characteristic
75% of full capacity
of tire
Air compresses like
a cushion
100% of full capacity
of tire
Water can not be
compressed
• To avoid damage of the transmission, do not
the rear wheel weights and liquid ballast at
• You must do the jobs indicated by ◎ after the first 50 hours of operation.
• The items which is @ marked are registered as the emission-related-critical-parts by KUBOTA in the U.S.EPA nonroad emission reg-
ulation. As the engine owner, you are responsible for the performance of the required maintenance on the engine according to the
preceding instruction.
Please see Warranty Statement in detail.
*1 The initial 50 hours should not be a replacement (changing) cycle.
*B When the battery is used for less than 100 hours per year, check the battery condition by reading the indicator annually.
*2 You should clean the air cleaner more often in dusty conditions than in normal conditions.
*3 Every 1,000 hours or every 1 year whichever comes faster.
*K Consult your local KUBOTA Dealer for this service.
*4 Every 2,000 hours or every 2 years whichever comes faster.
*R Replace if any deterioration (crack, hardening, scar, or deformation) or damage occurred.
Page 75
LUBRICANTS, FUEL, AND COOLANTMAINTENANCE
BX1880, BX2380, BX2680
71
LUBRICANTS, FUEL, AND COOLANT
IMPORTANT :
•
To prevent serious damage to hydraulic systems, use only KUBOTA genuine fluid or its equivalent.
No.Locations
1 Fuel
2 Coolant with recovery tank
3 Engine crankcase
4 Transmission case
5 Front axle case
GreasingNo. of greasing pointsCapacityType of grease
Battery terminal2moderate amount
Speed control pedal1until grease overflow
6
Rear link4moderate amount
Bonnet lock1moderate amount
Bonnet guide1moderate amount
*1 Oil amount when the oil level is at the upper level of the oil level gauge.
*2
The product name of KUBOTA genuine UDT fluid may be different from that in the operator's manual depending on countries or territories.
Consult your local KUBOTA Dealer for further detail.
BX1880BX2380BX2680
2.9 L
(3.06 U.S.qts.)
*1
3.0 L
(3.17 U.S.qts.)
Capacities
25 L
(6.6 U.S.gals.)
3.1 L
(3.3 U.S.qts.)
*1
3.3 L
(3.49 U.S.qts.)
11.3 L
(2.99 U.S.gals.)
3.6 L
(3.8 U.S.qts.)
3.3 L
(3.5 U.S.qts.)
*1
4.0 L
(4.23 U.S.qts.)
Grade
No. 2-D diesel fuel
No. 1-D diesel fuel if temperature is below
-10 ℃
(14 ℉)
Fresh clean soft water with anti-freeze
• Engine oil
API Service Classification CF or higher
Above 25 ℃ (77 ℉)SAE30, SAE10W-30 or 15W-40
-10 ℃ to 25 ℃
(14 ℉ to 77 ℉)
Below -10 ℃ (14 ℉)SAE10W-30
• KUBOTA SUPER UDT-2 fluid
• KUBOTA SUPER UDT-2 fluid *2
oil
SAE20, SAE10W-30, or 15W-40
*2
or SAE 80-SAE90 gear
Multipurpose
EP2 Grease (NLGI Grade No.2)
Fuel
• Cetane
number
of 45 is minimum. Cetane number greater than 50 is preferred, especially for the following
temperatures or the following elevations.
TemperaturesBelow -20 ℃ (-4 ℉)
ElevationsAbove 1500 m (5000 ft)
• Diesel fuels specified to EN 590 or ASTM D975 are recommended.
• No.2-D is a distillate fuel of lower volatility for engines in industrial and heavy mobile service (SAE J313 JUN87).
Engine oil
•
Oil used in the engine should have an American Petroleum Institute (API) service classification and proper SAE
engine oil according to the ambient temperatures as shown in the preceding table.
• Refer to the following table for the suitable API classification engine oil according to the engine type with internal
EGR, external EGR, or non-EGR, and the fuel.
Fuel used
Ultra low sulfur fuel [<0.0015%
(15 ppm)]
EGR
Exhaust gas re-circulation
Oil class of engines except external EGROil class of engines with external EGR
CF, CF-4, CG-4, CH-4, or CI-4
Engine oil classification (API classification)
CF, or CI-4
You cannot use the class CF-4, CG-4, and CH-4 engine oils on ERG-type-engines.
• The CJ-4 engine oil is intended for DPF (diesel-particulate-filter) type engines, and cannot be used on this tractor.
Page 76
MAINTENANCELUBRICANTS, FUEL, AND COOLANT
72
BX1880, BX2380, BX2680
except external EGRwith external EGR
ModelsBX1880, BX2380, and BX2680-
Transmission oil
• KUBOTA Super UDT
-2
For an enhanced ownership experience, we highly recommend Super UDT-2 to be used instead of standard
hydraulic/transmission fluid.
Super UDT-2 is a proprietary KUBOTA formulation that delivers superior performance and protection in all
operating conditions.
Regular UDT is also permitted for use in this machine.
• Indicated capacities of water and oil are manufacturer's estimate.
Page 77
LUBRICANTS, FUEL, AND COOLANTMAINTENANCE
BX1880, BX2380, BX2680
73
1. Biodiesel fuel (BDF)
B0-B20 biodiesel fuels (BDF)
can use mixed diesel fuels containing 20% or less
You
biodiesel under the following conditions.
IMPORTANT :
• Concentrations greater than B5 (5%) are not
approved for common rail engines and engines
with aftertreatment device. Using
concentrations greater than B5 (5%) can cause
damage and reduce engine life.
• Refuel and use the fuel with caution in order to
avoid contact with the fuel and spillage that
could create a potential environmental or fire
hazard. Wear appropriate protective equipment
when refueling.
Applicable BDF
• You
• Any mineral-oil-diesel-fuel, if used, must conform to
• Allowable blended fuel is mineral-oil-diesel-fuel
Product warranty, emission, and other precautions
• The engine-emission-control-system was certified
• BDF may cause restricted or clogged fuel filters
• BDF encourages the growth of microorganisms
can use blended diesel fuels containing 6%
through 20% BDF (B6-B20) which comply with
American society for testing and materials (ASTM)
D7467 standard, as revised, without adversely
affecting the performance and durability of the
engine and the components of the fuel system.
ASTM D975 (or the European EN590) Standard, as
revised.
B100 fuel used to generate biodiesel-blended-fuels
must meet ASTM D6751 (or EN14214) Standard,
as revised.
The final blended fuel B20 must conform to ASTM
D7467 standard, as revised.
Straight-vegetable-oil is not allowed in any blended
fuel.
blended with B100 (for example 100% BDF).
The blended fuel ratio shall be less than 20% B100
and 80% or more diesel fuel.
Purchase the B100 source used for biodiesel
blends from an accredited BQ-9000 marketer or
producer.
You can find more information about qualified
marketer(s) and producer(s) at http://www.bq-9000.org .
according to current regulations based on the use
of non-BDF. When using BDF, the owner is advised
to check applicable local and federal emission
regulations, and comply with all of them.
during cold weather conditions, resulting in the
engine not operating properly.
which may cause degradation of the fuel.
degradation of the fuel may cause corrosion of the
fuel line or reduce the fuel filter flow earlier than
expected.
• BDF inherently
degradation of the fuel earlier than expected. To
avoid absorbing moisture of BDF, drain the water
separator and the fuel-filter-port often.
• Do not use biodiesel whose concentrations higher
than 20% (for example, greater than B20).
Higher concentrated biodiesel will affect engine
performance and fuel consumption, and
degradation of the fuel system components may
occur.
• Do not readjust the engine-fuel-control-system
because readjusting it will violate the emissioncontrol-levels for which the equipment was
approved.
• Compared with soybean-based and rapeseedbased feedstock, palm-oil-based feedstock has a
thicker consistency (for example, higher viscosity)
at lower temperatures.
Consequently, palm-oil-based feedstock may
reduce performance of the fuel filter, particularly
during cold weather conditions.
• The KUBOTA warranty, as specified in the Owner's
Warranty Information Guide, only covers flaws in
product materials and workmanship. Accordingly,
The KUBOTA warranty do not cover any problems
that may arise due to the use of poor quality fuels
that fail to meet the preceding requirements,
whether biodiesel or mineral-oil-based.
Routine using
• Avoid spilling BDF onto painted surfaces because
this may damage the finish. If the fuel is spilled,
immediately wipe clean and flush with soapy water
to avoid permanent damage.
• When using BDF, you are advised to maintain a full
tank of the fuel, especially overnight and during
short term storage, to reduce condensation within
the tank. Be sure to tighten the fuel cap after
refueling to prevent moisture build up within the
tank. Water in the biodiesel mixture will damage the
fuel filters and may damage the engine
components.
Maintenance Requirements when using BDF B0
through B5
Follow the oil-change-intervals recommended by
referring to the SERVICE INTERVALS on page 69.
Extended oil-change-intervals may result in premature
wear or engine damage.
Maintenance Requirements when using BDF B6
through B20
The maintenance interval for fuel related parts
changes.
See the following table for the new maintenance
interval.
absorbs moisture which may cause
Page 78
MAINTENANCELUBRICANTS, FUEL, AND COOLANT
74
BX1880, BX2380, BX2680
ItemsIntervalRemarks
Fuel filter
Fuel hose
CheckEvery 50 hr
ReplaceEvery 200 hr
CheckEvery 6 months
Replace
Every 2 years
Replace if any deterioration (crack,
hardening, scar, or
deformation) or
damage occurred.
Consult your local
KUBOTA Dealer for
this service.
Long term storage for B5
• BDF easily
deteriorates due to oxygen, water, heat,
and foreign substances. Do not store B5 longer
than three months.
• When using B5 fuel and storing the machine longer
than three months, drain the fuel from the tanks and
replace with light-mineral-oil-diesel-fuel.
Subsequently, run the engine at least the following
minutes to remove all of the biodiesel from the fuel
lines.
Running the engine30 minutes
Long term storage for B6 through B20
• BDF easily
deteriorates due to oxygen, water, heat,
and foreign substances. Do not store B6 through
B20 longer than one month.
• When using B6 through B20 fuel and storing the
machine longer than one months, drain the fuel
from the tanks and replace with light-mineral-oildiesel-fuel. Subsequently, run the engine at least
the following minutes to remove all of the biodiesel
from the fuel lines.
Running the engine30 minutes
Page 79
HOW TO OPEN THE HOODPERIODIC SERVICE
BX1880, BX2380, BX2680
75
PERIODIC SERVICE
• Park the machine on firm and level ground.
WARNING
To avoid serious injury or death:
• Do not work under any hydraulically supported
devices. Working under any hydraulically
supported devices can settle, suddenly leak
down, or be accidentally lowered.
• If necessary to work under the tractor or any
machine elements for servicing or adjustment,
securely support the tractor or any machine
elements with stands or suitable blocking
beforehand.
HOW TO OPEN THE HOOD
• Set the parking brake.
• Lower the implement to the ground.
• Release all residual pressure of the hydraulic
system.
• Stop the engine and remove the key.
For your own safety and maximum service life of the
machine, make a thorough daily inspection before
operating the machine or starting the engine.
1. Walk around inspection
Look around and under the tractor for such items as
loose bolts, trash build-up, oil or coolant leaks, or
broken or worn parts.
WARNING
To avoid serious injury or death from contact with
moving parts:
• Never open the hood or engine side cover while
the engine is running.
• Do not touch the muffler or the exhaust pipes
while they are hot.
Touching the hot muffler or exhaust pipes could
cause severe burns.
Pull the hood-open-lever to release the latch to open
the hood, and open the hood.
(1) Hood
(2) Hood open lever
(A) Pull
DAILY CHECK
WARNING
To avoid serious injury or death:
Take the following precautions when checking the
tractor.
2. Checking the fuel gauge and
refueling
WARNING
To avoid serious injury or death:
• Do not smoke while refueling.
• Be sure to stop the engine and remove the key
before refueling.
To avoid allergic skin reaction:
• Wash hands immediately after contact with
diesel fuel.
IMPORTANT :
• Do not permit dirt, trash, or water to get into the
fuel system.
• Be careful not to empty the fuel tank, otherwise
air will enter the fuel system, necessitating
bleeding before next starting the engine.
• Be careful not to spill the fuel during refueling.
If you should spill, wipe it off at once, or it may
cause a fire.
• To prevent water condensation and water
accumulation in the fuel tank, fill the tank before
parking overnight.
Using fuel
Temperaturefuel
Above -10 ℃ (14 ℉)Grade No.2-Diesel fuel
Below -10 ℃ (14 ℉)Grade No.1-Diesel fuel
1. Turn the key switch to the on position and check
the amount of fuel by the fuel gauge.
Page 80
PERIODIC SERVICEDAILY CHECK
76
BX1880, BX2380, BX2680
2. Fill the fuel tank with fuel when the fuel gauge
shows as follows.
Amount of fuel for refueling1/4 or less in the fuel tank
Fuel tank capacity
(1) Fuel tank cap
25 L
(6.6 U.S.gals.)
3. Checking the engine oil level
BX1880 and BX2380
BX2680
WARNING
To avoid serious injury or death:
• Be sure to stop the engine before checking the
engine oil level.
IMPORTANT :
• When using an engine oil of different maker or
viscosity from the previous one, remove all of
the old oil and oil filter. Never mix two different
types of oil.
• If the engine oil level is low, do not run the
engine.
1. Park the machine on a firm, flat, and level surface.
2. Check the engine oil before starting the engine, or,
after five minutes or more when the engine has
been stopped.
3. To check the engine oil level, draw out the dipstick,
wipe it clean, replace it, and draw it out again.
4. Check to see that the engine oil level lies between
the two notches.
5. If the engine oil level is too low, add new oil to the
prescribed level at the oil inlet.
See LUBRICANTS, FUEL, AND COOLANT on
page 71.
(1) Oil inlet
(2) Dipstick
(A) Engine oil level is acceptable
within this range
4. Checking the transmission fluid
level
WARNING
To avoid serious injury or death:
• Park the tractor on a firm, flat, and level surface,
lower the implement to the ground, and shut off
the engine.
IMPORTANT :
• If the transmission fluid level is low, do not run
the engine.
1. To check the transmission fluid level, check the
dipstick as the following procedure.
a. Draw out the dipstick.
b. Wipe the dipstick clean.
c. Replace the dipstick.
d. Draw the dipstick out again.
2. Check to see that the transmission fluid level lies
between the two notches.
Page 81
DAILY CHECKPERIODIC SERVICE
BX1880, BX2380, BX2680
77
3. If the transmission fluid level is too low, add new
fluid to the prescribed level at the oil inlet.
See LUBRICANTS, FUEL, AND COOLANT on
page 71.
(1) Oil inlet
(2) Dipstick
(A) Transmission fluid level is
acceptable within this range
5. Checking the coolant level
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before checking coolant level.
• Do not remove the radiator cap while the
coolant is hot. When coolant is cool, slowly
rotate the radiator cap to the first stop and allow
sufficient time for excess pressure to escape
before removing the radiator cap completely.
IMPORTANT :
• If the radiator cap has to be removed, follow the
preceding warning and securely retighten the
radiator cap.
• Use clean, fresh, soft water and anti-freeze to fill
the recovery tank.
• If water should leak, consult your local KUBOTA
Dealer.
(1) Recovery tank
(A) “H”
(B) “L”
6. Cleaning the panel and the
radiator screen
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before removing the screen.
• Before checking or cleaning the panel, wait long
enough until it cools down.
IMPORTANT :
• The panel and the radiator screen must be clean
from debris to prevent the engine from
overheating and to allow good air intake for the
air cleaner.
• Be sure to reinstall the panel on the pillar
completely to prevent the invasion of dust.
• Be sure to stop the engine to avoid personal
injury and to allow good air intake for air
cleaner.
1. Check the panel and the radiator screen to be sure
that they are clean from debris.
1. Check to see that the coolant level is between the
“H” and “L” marks of the recovery tank.
2. When the coolant level drops due to evaporation,
add soft water only. In case of leakage, add
antifreeze and soft water in the specified mixing
ratio up to the “H” level.
See 1. Flushing the cooling system and changing
the coolant on page 90.
Page 82
PERIODIC SERVICEDAILY CHECK
78
BX1880, BX2380, BX2680
2. Detach the radiator screen, and then remove all the
foreign material.
NOTE :
• If the dust or chaff is accumulated in the
battery compartment, open the panel and
clean completely.
(1) Panel
(2) Knob
(3) Center pillar
(4) Radiator screen
(A) Detach
7. Checking the brake pedal
1. Inspect the brake pedal for free travel, and smooth
operation.
2. Adjust the brake pedal if incorrect measurement is
found.
See 6. Adjusting the brake pedal on page 85.
8. Checking the gauges, the meters,
and the Easy Checker
1. Inspect the instrument panel for broken gauge(s),
meter(s) and Easy Checker™ lamps.
2. Replace the gauge(s), the meter(s), or the Easy
Checker™ if they are broken.
™
9. Checking the head light, hazard
light, and so on
1. Inspect the lights for broken bulbs and lenses.
2. Replace the lights if they are broken.
10. Checking the seat belt and the
ROPS
1. Always check condition of the seat belt and the
ROPS attaching hardware before operating the
tractor.
2. Replace the seat belt or the ROPS if it is damaged.
11. Checking and cleaning the
electrical wiring and the battery
cables
WARNING
To avoid serious injury or death:
• A loosened terminal or connector, or damaged
wire may affect the performance of the electrical
components or cause short circuits. Leakage of
electricity could result in a fire hazard, a dead
battery, or damage to the electrical
components.
• Replace the damaged wires or connections
promptly.
• If a fuse blows soon after replacement, do not
use the capacity larger than recommended or
bypass the fuse system.
• Many wiring connections are protected by
waterproof plugs. Plug and unplug these
connections carefully and make sure that they
are sealed correctly after assembly.
• Accumulation of dust, chaff, and deposits of
spilled fuel around the battery, electrical wiring,
engine, or exhaust system may cause fire
hazards.
Clean around the battery, electrical wiring,
engine or exhaust system before starting to
work.
• To avoid premature electrical malfunctions, do
not apply high pressure water directly to the
battery, the wiring, the connectors, the electrical
components, or the instrument panel.
Inspect the following check items regularly
• Check the wiring for chafed or cracked insulation.
• Check the wiring harness clamps. Replace them if
necessary.
• Check the connectors and the terminals for
looseness, contamination, or overheated or
discolored connections.
• Check the instrument panel for correct operation of
the switches and the gauges.
Page 83
DAILY CHECKPERIODIC SERVICE
BX1880, BX2380, BX2680
79
Consult your KUBOTA Dealer regarding maintenance,
diagnosis, and repair.
12. Checking the movable parts
If any of the movable parts, such as levers and
1.
pedals,
sticky material, remove the rust or the sticky
material, and apply oil or grease on the relevant
spot.
Do not force the movable parts into motion.
Otherwise, the machine may get damaged.
is not smoothly moved because of rust or
SERVICE EVERY 50 HOURS
1. Lubricate fittings with grease
Apply a small amount of multipurpose grease to the
following points every 50 hours.
If you
muddy conditions, lubricate grease fittings more often.
Apply grease between rod and hole.
operated the machine in extremely wet and
Page 84
PERIODIC SERVICESERVICE EVERY 50 HOURS
80
BX1880, BX2380, BX2680
Preparation before testing
1. Sit on the operator's seat.
2. Set the parking brake and stop the engine.
3. Shift the range-gear-shift-lever to the neutral
“N” position.
4. Check whether the speed-control-pedal is in the
neutral position.
5. Shift the PTO-clutch-lever to the off
position.
[Test 1] Switch for the speed control pedal
1. Make sure that the range-gear-shift-lever is set in
the neutral “N” position.
2. Depress the speed-control-pedal.
3. Turn the key to the start
position.
The engine must not crank. If the engine cranks,
consult your local KUBOTA Dealer.
[Test 2] Switch for the PTO clutch lever
1. Make sure that the range-gear-shift-lever is set in
the neutral “N” position.
2. Make sure that the speed-control-pedal is set in the
neutral position.
3. Shift the PTO-clutch-lever to the on
4. Turn the key to the start
position.
position.
The engine must not crank. If the engine cranks,
consult your local KUBOTA Dealer.
• Do not allow anyone near the tractor while
testing.
• If the tractor does not pass the test, do not
operate the tractor.
(1) Range gear shift lever (Hi-
Lo)
(2) PTO clutch lever
(3) Speed control pedal
3. Checking the OPC (operator
presence control) system
WARNING
To avoid serious injury or death:
• Do not allow anyone near the tractor while
testing.
• If the tractor does not pass the test, do not
operate the tractor.
Preparation before testing
1. Sit on the operator's seat.
2. Set the parking brake and stop the engine.
Page 85
SERVICE EVERY 50 HOURSPERIODIC SERVICE
BX1880, BX2380, BX2680
81
3. Shift the range-gear-shift-lever to the neutral
“N” position.
4. Check whether the speed-control-pedal is in the
neutral position.
5. Shift the PTO-clutch-lever to the off position.
[Test 1] Switches for the operator's seat and the
speed control pedal
1. Start the engine.
2. Depress the speed-control-pedal.
3. Stand up.
Do not get off the machine.
The engine must shut off after approximately one
second. If it does not stop, consult your local KUBOTA
Dealer.
[Test 2] Switches for the operator's seat and the
PTO clutch lever
1. Start the engine.
2. Engage the PTO-clutch-lever.
3. Stand up.
Do not get off the machine.
The engine must shut off after approximately one
second. If it does not stop, consult your local KUBOTA
Dealer.
Front
Rear
(1) Range gear shift lever (Hi-
Lo)
(2) PTO clutch lever
(3) Speed control pedal
4. Checking the wheel bolt torque
WARNING
To avoid serious injury or death:
• Never operate the tractor with a loose rim,
wheel, or axle.
• Any time bolts are loosened, retighten to the
specified torque.
• Check all bolts frequently and keep them tight.
1. Check the wheel bolts regularly especially when
new.
2. If they are loose, tighten them as follows.
(1)149.2 N⋅m to 179.0 N⋅m
(2)108.5 N
(15.2 kgf⋅m to 18.3 kgf⋅m)
(110 lbf⋅ft to 132 lbf⋅ft)
⋅
(11.1 kgf⋅m to 13.3 kgf⋅m)
(80 lbf⋅ft to 96 lbf⋅ft)
m to 130.2 N⋅m
5. Cleaning the lock lever shaft
1. Before you use the lock lever, clean the levermovable-area (1).
(1) Lever movable area
Page 86
PERIODIC SERVICESERVICE EVERY 100 HOURS
82
BX1880, BX2380, BX2680
SERVICE EVERY 100 HOURS
1. Checking of the battery
DANGER
To avoid the possibility of battery explosion:
For the refillable-type-battery, follow the
instructions as follows.
• Do not use or charge the refillable-type-battery
if the fluid level is below the lower-limit-levelmark. Otherwise, the battery component parts
may prematurely deteriorate, which may
shorten the service life of the battery or cause
an explosion.
• Check the fluid level regularly and add distilled
water as required so that the fluid level is
between the upper level and the lower level.
WARNING
To avoid serious injury or death:
• Never remove the battery cap while the engine
is running.
• Keep electrolyte away from eyes, hands, and
clothes. If you are spattered with electrolyte,
wash it away completely with water immediately
and get medical attention.
• Keep open sparks and flames away from the
battery at all times. Hydrogen gas mixed with
oxygen becomes very explosive.
• Wear eye protection and rubber gloves when
working around battery.
• Tighten the battery holder firmly when you reassemble the battery.
• Make sure to put a clamp to the positive cable
of the battery.
IMPORTANT :
• The factory-installed battery is of non-refillable
type. If the battery is weak, charge the battery or
replace it with new one.
• Mishandling the battery shortens the service life
and adds to maintenance costs.
The original battery is maintenance free, but
needs some servicing.
If the battery is weak, the engine will be difficult
to start and the lights will be dim. It is important
to check the battery periodically.
• When exchanging an old battery for a new one,
use the battery of equal specification in the
following table.
Battery type526RMF
Volts12 V
Reserve capacity86 min
Cold cranking amps560
Normal charging rate8.6 A
For non-accessible maintenance-free type batteries
Maintenance-free, non-accessible batteries are
designed to eliminate the need to add water. Yet the
volume of electrolyte above plates may eventually
become depleted due to abnormal conditions such as
high heat or improper regulator setting. Use a voltmeter
to check the state of charge. See the following table to
determine if charging is necessary.
Battery voltageReference state of charge
12.6100% (Full charge)
12.475%
12.250%
12.025%
11.80%
1.1 Battery charging
WARNING
To avoid serious injury or death:
• When the battery is being activated, hydrogen
and oxygen gases in the battery are extremely
explosive. Keep open sparks and flames away
from the battery at all times, especially when
charging the battery.
• When disconnecting the cable from the battery,
start with the negative terminal first. When
connecting the cable to the battery, start with
the positive terminal first.
• To prevent short circuit, before charging, make
sure to remove the metal-battery-holder.
• Never check battery charge by placing a metal
object across the posts.
Use a voltmeter or hydrometer.
Page 87
SERVICE EVERY 100 HOURSPERIODIC SERVICE
BX1880, BX2380, BX2680
83
IMPORTANT :
• The air cleaner uses a dry element. Never apply
oil to the air cleaner.
• Do not run the engine with filter element
removed.
• Align the arrow marks when reinstalling the
cover. If the cover is improperly fitted, dust
passes by the baffle and directly adheres to the
air cleaner element.
NOTE :
• Check to see if the evacuator valve is blocked
with dust.
(1) Battery(2) Clamp
1. Remove the air cleaner cover and the element.
IMPORTANT :
• Since the metal-battery-holder can crack, do not
tighten it too much.
• To slow charge the battery, connect the battery
positive terminal to the charger positive terminal
and the negative to the negative, then charge as
follows.
Charging the batteryFor at least 1 hour at 6.5 amperes
• A boost charge is only for emergencies. It will
partially charge the battery at a high rate and in a
short time. When using a boost-charged battery, it
is necessary to recharge the battery as early as
possible.
Failure to do this will shorten the battery's service
life.
• When the specific gravity of electrolyte is shown in
the following table, the charging is completed.
a. Undo the hook.
b. Turn the air cleaner cover clockwise and detach
it.
2. Clean the air cleaner element.
When dry dust adheres to the element, blow
compressed air from the inside, turning the
element. Pressure of compressed air must be the
value shown in the following table.
Pressure of compressed airBelow 205 kPa (2.1 kgf/cm2, 30 psi)
3. When carbon or oil adheres to the element, follow
the following procedure.
a. Soak the air cleaner element in detergent for
the following minutes.
Soaking the air cleaner element in detergentFor 15 minutes
b. Then wash it several times in water.
c. Rinse the air cleaner element with clean water.
d. Dry the air cleaner element naturally.
Specific gravity of electrolyteBetween 1.27 and 1.29
e. After the air cleaner element is fully dried,
inspect inside of it with a light and check if it is
damaged or not.
1.2 Dealing with the battery when storing
the tractor for a long period
Refer to the instructions on the label attached to
the case.
1. Remove the battery from the tractor.
2. Adjust the electrolyte to the proper level.
3. Store the battery in a dry place out of direct
sunlight.
The battery self-discharges while it is stored.
Recharge the battery once every three months in hot
seasons and once every six months in cold seasons.
2. Cleaning the air cleaner element
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before cleaning the air cleaner element.
Page 88
PERIODIC SERVICESERVICE EVERY 100 HOURS
84
BX1880, BX2380, BX2680
4. Replace the air cleaner element as the following
table.
Replacing the air cleaner
element
Every 1000 hours or every 1 year
whichever comes faster
BX1880 and BX2380
BX2680
fuel line with a clean plug of suitable size to
prevent dust and dirt from entering. You must
take particular care of the fuel filter in order to
avoid dust and dirt getting into the fuel system.
Entrance of dust and dirt causes malfunction of
the fuel pump.
The fuel line is made of rubber and ages regardless of
service period.
1. Inspect the fuel filter.
2. After inspection of the fuel filter, if the fuel line and
clamps are found damaged or deteriorated, replace
them.
3. Check the fuel filter. If the fuel filter is clogged by
debris or contaminated by water, replace it.
(1) Element
(2) Cover
(3) Evacuator valve
Evacuator valve
Open the evacuator valve once a week under ordinary
conditions or daily when used in a dusty place to get rid
of large particles of dust and dirt.
3. Checking the fuel filter
WARNING
To avoid serious injury or death:
• Stop the engine and remove the key before
checking the fuel lines and the fuel filter.
• Check the fuel lines periodically. The fuel lines
are subject to wear and aging. Fuel may leak
out onto the running engine, causing a fire.
IMPORTANT :
• When the fuel line is disconnected for
maintenance or repair, plug both ends of the
(1) Pipe clamps
(2) Fuel line
(3) Fuel filter
(4) Fuel pump
NOTE :
• If the fuel line is removed, be sure to properly
bleed the fuel system.
See 1. Bleeding the fuel system on page 94.
4. Adjusting the fan belt tension
WARNING
To avoid serious injury or death:
Page 89
SERVICE EVERY 100 HOURSPERIODIC SERVICE
BX1880, BX2380, BX2680
85
• Be sure to stop the engine and remove the key
before checking the fan belt tension.
Fan belt tension
(deflection)
7 mm to 9 mm (0.28 in. to 0.35 in.) when the
belt is pressed in the middle of the span.
1. Stop the engine and remove the key.
2. Apply moderate thumb pressure to belt between
pulleys.
3. If tension is incorrect, loosen the alternator
mounting bolts and, using a lever placed between
the alternator and the engine block, pull the
alternator out until the deflection of the belt falls
within acceptable limits.
4. Replace fan belt if it is damaged.
(1) HST neutral spring(2) Adjusting nut
6. Adjusting the brake pedal
WARNING
To avoid serious injury or death:
• Stop the engine, remove the key, lower the
implement to the ground, and chock the wheels
before checking the brake pedal.
• Even if free travel of the brake pedal is within
the limitation, adjust the brake pedal.
• If you are not able to adjust, consult your local
KUBOTA Dealer.
(1) Bolt(A) Check the belt tension
5. Adjusting the HST neutral spring
for speed control pedal
WARNING
To avoid serious injury or death:
• Do not operate if the tractor moves on level
ground with foot off the speed-control-pedal.
• If the tractor moves on level ground with foot
off the speed-control-pedal, or, if the pedal is
too slow in returning to the neutral position
when removing the foot from the pedal, consult
your local KUBOTA Dealer.
The HST-neutral-spring located under the front right
side of the fender can adjust returning speed of the
speed-control-pedal.
• Consult your local KUBOTA Dealer for service.
1. Release the parking brake.
2. Loosen the lock nut and turn the turnbuckle to
adjust the rod length so that free travel of the brake
pedal is the length shown in the following table.
Free travel of the brake pedal
10 mm
(0.4 in.)
3. Extend the turnbuckle one additional turn.
4. Retighten the lock nut.
Page 90
PERIODIC SERVICESERVICE EVERY 200 HOURS
86
BX1880, BX2380, BX2680
5. Depress the brake pedal several times and make
sure that free travel of the brake pedal is the length
shown in the following table.
Free travel of the brake pedal
25 mm to 35 mm
(1.0 in. to 1.4 in.)
4. Tighten filter by hand an additional 1/2 turn only.
5. After the new filter has been replaced, the engine
oil normally decreases a little. Make sure that the
engine oil does not leak through the seal and be
sure to check the oil level on the dipstick.
6. Fill the engine with the engine oil up to the
prescribed level.
7. Properly dispose of the used engine oil.
(1) Engine oil filter
(1) Lock nut
(2) Turnbuckle
(A) Free travel
(B) Right rear tire
SERVICE EVERY 200 HOURS
1. Replacing the engine oil filter
WARNING
To avoid serious injury or death:
• Be sure to stop the engine before replacing the
oil filter cartridge.
• Oil can be hot and can burn. Allow the engine to
cool down sufficiently.
IMPORTANT :
• To prevent serious damage to the engine, use
only a KUBOTA genuine filter.
2. Changing the engine oil
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before changing the oil.
• Oil can be hot and can burn. Allow the engine to
cool down sufficiently.
BX1880
Oil capacity with filter
BX2380
BX2680
1. To drain the used engine oil, remove the drain plug
at the bottom of the engine, and drain the engine oil
completely into the oil pan.
2. After draining of the used engine oil, reinstall the
drain plug.
3. Fill the engine with the new engine oil up to the
upper notch on the dipstick.
See LUBRICANTS, FUEL, AND COOLANT on
page 71.
3.0 L
(3.17 U.S.qts.)
3.3 L
(3.49 U.S.qts.)
4.0 L
(4.23 U.S.qts.)
1. Remove the oil filter.
2. Put a film of the clean engine oil on the rubber seal
of the new filter.
3. Tighten the filter quickly until it contacts the
mounting surface.
Page 91
SERVICE EVERY 200 HOURSPERIODIC SERVICE
BX1880, BX2380, BX2680
87
4. Properly dispose of the used engine oil.
BX1880 and BX2380
BX2680
• Be sure to stop the engine before changing the
transmission oil filter cartridge.
• Oil can be hot and can burn. Allow the engine to
cool down sufficiently.
IMPORTANT :
• To prevent serious damage to the hydraulic
system, use only a KUBOTA genuine filter.
1. Remove the transmission oil filter.
2. Put a film of clean transmission oil on rubber seal of
new transmission oil filter.
3. Tighten the transmission oil filter quickly until it
contacts the mounting surface.
4. Tighten the transmission oil filter by hand an
additional 1/2 turn only.
5. After the new transmission oil filter has been
replaced, the transmission fluid level will decrease a
little. Make sure that the transmission fluid does not
leak through the seal, and check the fluid level.
Check the dipstick and refill with oil to prescribed
level.
6. Properly dispose of used oil.
BX1880, BX2380, and BX2680
(1) Oil inlet
(2) Dipstick
(3) Drain plug
(A) Oil level is acceptable within
this range
3. Replacing the transmission oil
filter
WARNING
To avoid serious injury or death:
(1) Filter
4. Checking the toe-in
WARNING
To avoid serious injury or death:
• Park the tractor on a firm, flat, and level place.
• Lower the implement to the ground, and apply
the parking brake.
• Stop the engine and remove the key.
1. Turn the steering wheel so that the front wheels are
in the straight ahead position.
2. Measure the distance between the tire beads at
front of the tires, and at the hub heights.
3. Measure the distance between the tire beads at
rear of the tires, and at the hub heights.
Page 92
PERIODIC SERVICESERVICE EVERY 200 HOURS
88
BX1880, BX2380, BX2680
4. Front distance should be the length as shown in the
following table. If front distance is not proper length,
adjust the length of the tie rod.
To adjust the tie rod, see 4.1 Adjusting the toe-in on
page 88.
Front distance
(A) Wheel-to-wheel distance at
rear
(B) Wheel-to-wheel distance at
front
0 mm to 5 mm (0 in. to 0.2 in.) less than
rear distance
(C) Front
SERVICE EVERY 400 HOURS
1. Adjusting the front axle pivot
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before adjusting the front axle pivot.
If the front axle pivot pin adjustment is not correct, front
wheel vibration can occur causing vibration in the
steering wheel.
1. Remove the split pin and tighten the adjusting nut.
Tightening torque
2. Make sure that one of the nut slots aligns with the
split pin hole.
3. Tighten the nut slightly if necessary when aligning
the nut slots with the split pin hole.
4. Replace the split pin.
20 N⋅m
(2.0 kgf⋅m)
(15 lbf⋅ft)
4.1 Adjusting the toe-in
1. Loosen the lock nut and turn the tie rod to adjust
the rod length until the proper toe-in measurement
is obtained.
Front distance
2. Retighten the lock nut.
(1) Lock nuts(2) Tie-rod
0 mm to 5 mm (0 in. to 0.2 in.) less than
rear distance
(1) Adjusting nut(2) Split pin
2. Changing the transmission fluid
WARNING
To avoid serious injury or death:
• Oil can be hot and can burn. Allow the engine to
cool down sufficiently.
Transmission fluidKUBOTA SUPER UDT 2
Transmission fluid capacity
11.3 L
(3.0 U.S.gals.)
1. To drain the used transmission fluid, remove the
drain plug at the bottom of the transmission case
and drain the transmission fluid completely into the
oil pan.
2. After draining the transmission fluid, reinstall the
drain plug.
Page 93
SERVICE EVERY 400 HOURSPERIODIC SERVICE
BX1880, BX2380, BX2680
89
3. Clean the transmission strainer.
4. Fill with new transmission fluid up to the upper
notch on the dipstick.
See LUBRICANTS, FUEL, AND COOLANT on
page 71 and 4. Checking the transmission fluid
level on page 76.
5. After running the engine for a few minutes, stop it
and check the transmission fluid level again.
6. If the transmission fluid level is lower than the
prescribed level shown in the following figure, add it
to the prescribed level.
7. Properly dispose of used transmission fluid.
(1) Drain plug
(2) Oil inlet
(3) Dipstick
(A) Transmission fluid level is
acceptable within this range
IMPORTANT :
• Do not operate the tractor immediately after
changing the transmission fluid.
Run the engine at medium speed for a few
minutes to prevent damage to the transmission.
3. Cleaning the transmission strainer
1. When changing the transmission fluid, disassemble
and rinse the transmission strainer with
nonflammable solvent to completely clean off filings.
When reassembling the transmission strainer, be
careful not to damage the parts.
(1) Transmission strainer(2) Filter plate
NOTE :
• Since the fine filings in the oil can damage
the precision component parts of the
hydraulic system, the end of the suction line
is provided with an oil strainer.
4. Changing the front axle case oil
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before changing the front axle case oil.
Oil capacity
1. Park the tractor on a firm, flat, and level place.
2. To drain the used front-axle-case-oil, remove the
right and left drain plugs and oil gauge at the front
axle case.
3. Drain the front-axle-case-oil completely into the oil
pan.
4. After draining the front-axle-case-oil, reinstall the
drain plugs.
5. Remove the right and left breather plugs.
4.7 L
(5.0 U.S.qts.)
Page 94
PERIODIC SERVICESERVICE EVERY 400 HOURS
90
BX1880, BX2380, BX2680
6. Fill with new front-axle-case-oil up to the upper
notch on the dipstick.
See LUBRICANTS, FUEL, AND COOLANT on
page 71.
IMPORTANT :
• After the following minutes, check the frontaxle-case-oil level again. If the front-axlecase-oil level is lower than the prescribed
level shown in the following figure, add the
front-axle-case-oil to prescribed level.
Checking the front axle case oil level
7. After filling with front-axle-case-oil, reinstall the oil
gauge and breather plugs.
10 minutes after filling with
new front axle case oil
SERVICE EVERY 1500 HOURS
1. Checking the injection pressure of
the fuel injection nozzle
• Consult your local KUBOTA Dealer for checking the
injection pressure of the fuel injection nozzle.
SERVICE EVERY 2000 HOURS
OR 2 YEAR
1. Flushing the cooling system and
changing the coolant
WARNING
To avoid serious injury or death:
• Do not remove the radiator cap while the
coolant is hot. When the coolant is cool, slowly
rotate the radiator cap to the first stop and allow
sufficient time for excess pressure to escape
before removing the radiator cap completely.
IMPORTANT :
• Do not start the engine without coolant.
• Use clean, fresh soft water and the anti-freeze
to fill the radiator and the recovery tank.
• When mixing the anti-freeze with water, the antifreeze mixing ratio is the following percentage.
• Consult your local KUBOTA Dealer for replacing the
fuel filter element.
SERVICE EVERY 800 HOURS
1. Adjusting the engine valve
clearance
• Consult your local KUBOTA Dealer for adjusting the
engine valve clearance.
SERVICE EVERY 1000 HOURS
OR 1 YEAR
1. Replacing of the air cleaner
element
Replace the air cleaner element every 1000 hours or
every 1 year whichever comes faster.
See 2. Cleaning the air cleaner element on page 83.
Anti-freeze mixing ratio with water50%
• Securely tighten the radiator cap. If the radiator
cap is loose or improperly fitted, water may leak
out and the engine could overheat.
Be sure to flush the cooling system and to change the
coolant once every 2000 hours or every two years
whichever comes faster.
BX1880
Coolant capacity (with recovery
tank)
1. Stop the engine and let it cool down.
2. To drain the coolant, open the radiator-drain-plug or
the engine-drain-plug and remove the radiator cap.
The radiator cap must be removed to completely
drain the coolant.
3. After all coolant is drained, close the drain plug.
4. Fill the radiator with clean soft water and the
cooling-system-cleaner.
5. Follow directions of the instruction of coolingsystem-cleaner.
BX2380
BX2680
2.9 L
(3.06 U.S.qts.)
3.1 L
(3.3 U.S.qts.)
3.3 L
(3.5 U.S.qts.)
Page 95
SERVICE EVERY 2000 HOURS OR 2 YEARPERIODIC SERVICE
BX1880, BX2380, BX2680
91
6. After flushing the radiator, fill it with clean soft water
and the anti-freeze until the coolant level is just
below the radiator cap.
7. Install the radiator cap securely.
8. Fill the recovery tank with coolant up to the “H”
mark on the recovery tank.
9. Start and operate the engine for few minutes.
10. Stop the engine and let it cool.
11. Check the coolant level of the recovery tank and
add the coolant if necessary.
BX1880 and BX2380
BX2680
(1) Radiator cap
(2) Radiator drain plug
(3) Engine drain plug
2. Anti-freeze
WARNING
To avoid serious injury or death:
• When using the anti-freeze, put on some
protection such as rubber gloves. The antifreeze contains poison.
• If someone drank anti-freeze, seek immediate
medical help. Do not make a person throw up
unless told to throw up by poison-controlcenter or a health care professional. Use
standard first aid and CPR for signs of shock or
cardiac arrest. Call your local poison control
center or your local emergency number for
further assistance.
• When the anti-freeze comes in contact with the
skin or clothing, wash it off immediately.
• Do not mix different types of the anti-freeze. The
mixture can produce chemical reaction causing
harmful substances.
• The anti-freeze is extremely flammable and
explosive under certain conditions. Keep fire
and children away from the anti-freeze.
• When draining fluids from the engine, place
some container underneath the engine body.
• Do not pour waste onto the ground, down a
drain, or into any water source.
• Also, follow the relevant environmental
protection regulations when disposing of the
anti-freeze.
Always use a 50/50 mix of long-life coolant and clean
soft water in KUBOTA engines.
Consult your local KUBOTA Dealer concerning coolant
for extreme conditions.
Page 96
PERIODIC SERVICESERVICE EVERY 3000 HOURS
92
BX1880, BX2380, BX2680
NOTE :
• The following data represent industry standards
that necessitate a minimum glycol content in
the concentrated anti-freeze.
• Long-life coolant (hereafter LLC) comes in several
types. Use ethylene glycol (EG) type for this
engine.
• Before using LLC-mixed cooling water, fill the
radiator with fresh water and empty it again.
Repeat this procedure two times or three times to
clean up the inside.
• Mixing the LLC
Premix50% LLC with 50% clean soft water.
When mixing, stir it up well, and then fill into the
radiator.
• Adding the LLC
– Add only water if the mixture reduces in amount
by evaporation.
– If there is a mixture leak, add the LLC of the
same manufacturer and type in the same
mixture percentage.
• Never add any long-life coolant of different
manufacturer. Different brands may have
different additive components, and the
engine may fail to perform as specified.
• When the LLC is mixed, do not use any radiator
cleaning agent. The LLC contains anticorrosive
agent. If mixed with the cleaning agent, sludge may
build up, adversely affecting the engine parts.
• KUBOTA's genuine long-life coolant has a service
life of two years. Be sure to change the coolant as
follows.
SERVICE EVERY 1 YEAR
1. Checking the intake air line
WARNING
To avoid serious injury or death:
• Stop the engine and remove the key before
checking the intake air line.
1. Check to see that the hose and the hose clamps
are tight and not damaged.
2. If the hose and the clamps are found worn or
damaged, replace or repair them at once.
BX1880 and BX2380
BX2680
Changing the coolant
every 2000 hours or every 2 years
whichever comes faster
• The procedure for the mixing of water and the antifreeze differs according to the make of the antifreeze and the ambient temperature. Refer to SAE
J1034 standard, more specifically also to SAE
J814c.
Anti-freezeFreezing pointBoiling Point
50Vol%-37 ℃-34 ℉108 ℃226 ℉
*1 At 1.013 x 105 Pa (760 mmHg) atmospheric pressure.
A higher boiling point is obtained by using a radiator pressure
cap which permits the development of pressure within the
cooling system.
*1
SERVICE EVERY 3000 HOURS
1. Checking the injection pump
• Consult your local KUBOTA Dealer for checking the
injection pump.
(1) Hose(2) Hose clamps
2. Checking the radiator hoses and
the hose clamps
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before checking the radiator hose and the hose
clamps.
Page 97
SERVICE EVERY 1 YEARPERIODIC SERVICE
BX1880, BX2380, BX2680
93
1. If the hose clamps are loose or water leaks, tighten
them securely.
2. Replace the radiator hoses and tighten the hose
clamps securely if you checked and found that the
radiator hoses are swollen, hardened, or cracked.
3. Properly dispose of used coolant.
(1) Radiator hoses (2 pcs)(2) Hose clamps (4 pcs)
3. Checking the power steering line
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before checking the power steering line.
4. Checking the fuel lines
WARNING
To avoid serious injury or death:
• Stop the engine and remove the key before
checking the fuel lines and fuel filter.
• Check the fuel lines periodically. The fuel lines
are subject to wear and aging. Fuel may leak
out onto the running engine, causing a fire.
IMPORTANT :
• When the fuel line is disconnected for
maintenance or repair, plug both ends of the
fuel line with a clean plug of suitable size to
prevent dust and dirt from entering. You must
take particular care of the fuel lines in order to
avoid dust and dirt getting into the fuel system.
Entrance of dust and dirt causes malfunction of
the fuel pump.
The fuel line is made of rubber and ages regardless of
service period.
1. Inspect the fuel lines.
2. After inspection, if the fuel lines and clamps are
found damaged or deteriorated, replace them.
3. Check the fuel filter. If the fuel filter is clogged by
debris or contaminated by water, replace it.
1. Check to see that all power steering lines are tight
and not damaged.
2. If the power steering pressure hoses are found to
be worn or damaged, replace or repair them at
once.
(1) Power steering pressure
hose
(1) Pipe clamps
(2) Fuel line
(3) Fuel filter
(4) Fuel pump
Page 98
PERIODIC SERVICESERVICE EVERY 1 YEAR
94
BX1880, BX2380, BX2680
NOTE :
• If the
fuel line is removed, be sure to properly
bleed the fuel system.
See 1. Bleeding the fuel system on page 94.
5. Checking the engine breather
hose
• Consult your local KUBOTA Dealer for checking the
engine breather hose.
SER
VICE EVERY 4 YEAR
1. Replacing the radiator hose (water
pipes)
1. Replace the
clamps securely.
radiator hoses and tighten the hose
SERVICE AS REQUIRED
1. Bleeding the fuel system
Air must be removed:
• When the fuel filter or lines are removed
•
When the tank is completely empty
• After the tractor has not been used for a long period
of time
Bleeding procedure is as follows
1. Fill the fuel tank with fuel.
(1) Radiator hoses (2 pcs)(2) Hose clamps (4 pcs)
2. Replacing the fuel hose
• Consult your local KUBOTA Dealer for replacing the
fuel hose.
3. Replacing the power steering
hose
• Consult your local KUBOTA Dealer for replacing the
power steering hose.
4. Replacing the intake air line
• Consult your local KUBOTA Dealer for replacing the
intake air line.
5. Replacing the engine breather
hose
• Consult your local KUBOTA Dealer for replacing the
engine breather hose.
(1) Fuel pump(2) Fuel filter
2. T
urn the key switch to the on position for the
following seconds.
Turning
allows fuel pump to work and pump air out of the
fuel system.
Turning the key to onAbout 30 seconds
3. Start the engine and run it for the following
seconds, and then stop it.
Running the engineAbout 30 seconds
the key to on for the following seconds
2. Replacing the fuse
The electrical system of the tractor is protected from
potential damage by fuses.
A blown
somewhere in the electrical system.
1. If any of the fuses should blow, replace with a new
IMPORTANT :
• Before replacing a blown fuse, determine why
fuse indicates that there is an overload or short
fuse with the same capacity.
the fuse blew and make any necessary repairs.
Failure to follow this procedure may result in
serious damage to the electrical system of the
tractor. Refer to the ENGINE
TROUBLESHOOTING on page 97 of this
manual or your local KUBOTA Dealer for
Page 99
SERVICE AS REQUIREDPERIODIC SERVICE
BX1880, BX2380, BX2680
95
specific information dealing with electrical
problems.
3. Replacing the light bulb
LightCapacity
Head light37.5 W×2
Tail light12.8 W×2
Hazard light27 W×2
Head light
ake
1. T
Other lights
1. Detach the lens and replace the light bulb.
the light bulb out of the body of the light and
replace with a new one.
(1) Fuse box(2) Slow blow fuse
Protected circuit
[Fuse box]
FUSE no.CapacityProtected circuit
1--
2--
310 A
410 AOPC
515 ADC outlet
65 AFuel pump
7--
85 AGlow indicator
95 AMeter
1015 AStop solenoid
1120 ALamp
1220 AOption (work light)
Option (3rd-func-
tion)
Slow blow fuse
CapacityProtected circuit
50 ACheck circuit against wrong battery connection
Page 100
STORAGE OF THE TRACTORSTORING THE TRACTOR
96
BX1880, BX2380, BX2680
STORAGE OF THE TRACTOR
ground. Keep the tires out of direct sunlight and
WARNING
To avoid serious injury or death:
• Do not clean the tractor while the engine is
running.
• To avoid the danger of exhaust fume poisoning,
do not operate the engine in a closed building
without proper ventilation.
• When storing the tractor, remove the key from
the key switch to avoid unauthorized persons
from operating the tractor and getting injured.
STORING THE TRACTOR
IMPORTANT :
• When washing the tractor, be sure to stop the
engine. Allow sufficient time for the engine to
cool before washing the tractor.
• Cover the tractor after the muffler and the
engine have cooled down.
If you intend to store your tractor for an extended
period of time, follow the procedures outlined as
follows. These procedures will insure that the tractor is
ready to operate with minimum preparation when it is
removed from storage.
1. Check the bolts and nuts for looseness, and tighten
them if necessary.
2. Apply grease to the areas of the tractor where bare
metal will rust and to pivot areas.
3. Detach the weights from the tractor body.
4. Inflate the tires to a pressure a little higher than
usual.
5. Change the engine oil and run the engine to
circulate oil throughout the engine block and
internal moving parts for about five minutes.
6. With all implements lowered to the ground, coat any
exposed hydraulic-cylinder-piston-rods with grease.
7. Remove the battery from the tractor. Store the
battery following the battery-storage-procedures.
See 1.2 Dealing with the battery when storing the
tractor for a long period on page 83.
8. Keep the tractor in a dry place, where the tractor is
sheltered from the elements. Cover the tractor.
9. Store the tractor indoors in a dry area that is
protected from sunlight and excessive heat. If the
tractor must be stored outdoors, cover it with a
waterproof tarpaulin.
Jack the tractor up and place blocks under the front
and rear axles so that all four tires are off the
extreme heat.
REMOVING THE TRACTOR
FROM STORAGE
1. Check air pressure of the tires and inflate the tires if
they are low.
2. Jack the tractor up and remove the support blocks
from under the front and rear axles.
3. Before installing the battery, be sure that it is fully
charged.
4. Install the battery.
5. Check the fan belt tension.
6. Check all fluid levels:
• engine oil
• transmission/ hydraulic oil
• engine coolant
• any attached implements
7. Start the engine. Check all gauges. If all gauges are
functioning properly and reading normal, move the
tractor outside. Once outside, park the tractor and
let the engine idle for at least five minutes.
8. Shut the engine off and walk around tractor and
make a visual inspection looking for evidence of oil
or water leaks.
9. With the engine fully warmed up, release the
parking brake and test the brakes for proper
adjustment as you move forward. Adjust the brakes
if it is necessary for the brakes to be adjusted.
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