Kubota B2630, B3030, B3000 Operators Manual

B2630·B3030·B3000

MODELS

OPERATOR'S MANUAL

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©

KUBOTA Corporation 2011

PRINTED IN JAPAN

READ AND SAVE THIS MANUAL

1AGAEDPAP0010

English (Australia)
Code No. 6C265-6311-1

KUBOTA Corporation is ···

Since its inception in 1890, KUBOTA Corporation has grown to
rank as one of the major firms in Japan.

To achieve this status, the company has through the years
diversified the range of its products and services to a remarkable
extent, until today, 19 plants and 16,000 employees produce over
1,000 different items, large and small.

All these products and all the services which accompany them,
however, are unified by one central commitment. KUBOTA makes
products which, taken on a national scale, are basic necessities.
Products which are indispensable, products intended to help
individuals and nations fulfill the potential inherent in their
environment. For KUBOTA is the Basic Necessities Giant.

This potential includes water supply, food from the soil and from
the sea, industrial development, architecture and construction,
transportation.

Thousands of people depend on KUBOTA's know-how, technology,
experience and customer service. You too can depend on
KUBOTA.

B2630/B3030/B3000

AP . K . 1 - 1 . 0 . AK

Abbreviations Definitions

ABBREVIATION LIST

Two Wheel Drive

Four Wheel Drive

American Petroleum Institute

American Society of Agricultural and Biological Engineers, USA

American Society for Testing and Materials, USA

Deutsches Institut für Normung, GERMANY

Dual Traction [4WD]

Feet Per Minute

Glide Shift Transmission

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

Society of Automotive Engineers, USA

Slow Moving Vehicle

2WD

4WD

API

ASABE

ASTM

DIN

DT

fpm

GST

Hi-Lo

HST

m/s

PTO

RH/LH

ROPS

rpm

r/s

SAE

SMV

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

Diesel Fuel

Fuel-Level

Engine-Rotational Speed

Hourmeter/Elapsed Operating Hours

Engine Coolant-Temperature

Parking Brake

Battery Charging Condition

Engine Oil-Pressure

Turn Signal

Engine-Stop

Engine-Run

Diesel Preheat/Glow Plugs(Low Temperature
Start Aid)

Starter Control

Power Take-Off Control-Off Position
(Disengaged)

Power Take-Off Control-On Position (Engaged)

Draft Control-Shallow Position

Draft Control-Deep Position

3-Point Lowering Speed Control

Remote Cylinder-Retract

Remote Cylinder-Extend

Steering Wheel-Tilt Control

Hazard Warning Lights

Headlight

Four-Wheel Drive-On

Four-Wheel Drive-Off

Fast

Slow

Creep

Read Operator's Manual

Tractor-Forward Movement-Overhead View of
Machine

Tractor-Rearward Movement-Overhead View
of Machine

Differential Lock

Position Control-Raised Position

Position Control-Lowered Position

Engine Speed Control

FOREWORD

You are now the proud owner of a KUBOTA Tractor. This tractor is a product of
KUBOTA quality engineering and manufacturing. It is made of fine materials and
under a rigid quality control system. 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 quickly as possible
every advance in our research. The immediate use of new techniques in the
manufacture of products may cause some small parts of this manual to be
outdated. KUBOTA distributors and dealers will have the most up-to-date
information. Please do not hesitate to consult with them.

3

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

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IMPORTANT :

NOTE :

DANGER :

WARNING :

CAUTION :

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

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

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

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

Gives helpful information.

SAFETY FIRST

CONTENTS

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

SERVICING OF TRACTOR......................................................................................... 1

SPECIFICATIONS....................................................................................................... 2

SPECIFICATION TABLE ......................................................................................... 2

TRAVELING SPEEDS ............................................................................................. 4

IMPLEMENT LIMITATIONS ........................................................................................ 5

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

PRE-OPERATION CHECK ....................................................................................... 10

DAILY CHECK ....................................................................................................... 10

OPERATING THE ENGINE....................................................................................... 11

STARTING THE ENGINE ...................................................................................... 11

Block Heater (Option) .....................................................................................................13

STOPPING THE ENGINE...................................................................................... 13

WARMING UP ....................................................................................................... 14

Warm-up Transmission Oil at Low Ambient Temperatures............................................14

JUMP STARTING .................................................................................................. 14

OPERATING THE TRACTOR ................................................................................... 16

OPERATING NEW TRACTOR .............................................................................. 16

Do not Operate the Tractor at Full Speed for the First 50 Hours.................................... 16

Changing Lubricating Oil for New Tractors..................................................................... 16

OPERATING FOLDABLE ROPS ........................................................................... 16

To Fold the ROPS ..........................................................................................................16

To Raise the ROPS to Upright Position.......................................................................... 17

Adjustment of Foldable ROPS........................................................................................ 18

STARTING ............................................................................................................. 18

Operator's Seat...............................................................................................................18

Seat Belt .........................................................................................................................19

Tilt Steering Adjustment..................................................................................................19

Head Light / Turn Signal / Hazard Light Switch..............................................................20

Horn Button.....................................................................................................................20

Brake Pedals (Right and Left).........................................................................................21

Range Gear Shift Lever (L-M-H).....................................................................................22

Front Wheel Drive Lever.................................................................................................22

Hand Throttle Lever........................................................................................................23

Parking Brake Lever ....................................................................................................... 23

Speed Control Pedal....................................................................................................... 23

Cruise Control Lever....................................................................................................... 24

STOPPING............................................................................................................. 25

Stopping..........................................................................................................................25

CHECK DURING DRIVING ................................................................................... 25

Immediately Stop the Engine if:......................................................................................25

Easy Checker (TM)......................................................................................................... 25

Fuel Gauge.....................................................................................................................26

CONTENTS

Coolant Temperature Gauge..........................................................................................26

Hourmeter / Tachometer.................................................................................................26

PARKING ............................................................................................................... 27

Parking............................................................................................................................27

OPERATING TECHNIQUES ................................................................................. 27

Differential Lock..............................................................................................................27

Operating the Tractor on a Road....................................................................................28

Operating on Slopes or Rough Terrain...........................................................................28

Directions for Use of Power Steering..............................................................................28

PTO ........................................................................................................................... 29

PTO OPERATION.................................................................................................. 29

PTO Select Lever ...........................................................................................................29

PTO Clutch Lever ...........................................................................................................30

PTO shaft Cover and Shaft Cap.....................................................................................30

Stationary PTO ...............................................................................................................31

THREE-POINT HITCH & DRAWBAR........................................................................ 32

3-POINT HITCH ..................................................................................................... 33

Selecting the holes of lifting rods and lower links ...........................................................33

Selecting the Top Link Mounting Holes .......................................................................... 33

Drawbar ..........................................................................................................................33

Lifting Rod (Right, Ratchet type).....................................................................................33

Top Link..........................................................................................................................33

Telescopic Stabilizers.....................................................................................................34

Telescopic Lower Links ..................................................................................................34

DRAWBAR............................................................................................................. 34

Adjusting Drawbar Length ..............................................................................................34

HYDRAULIC UNIT..................................................................................................... 35

3-POINT HITCH CONTROL SYSTEM................................................................... 35

Position Control ..............................................................................................................35

3-point Hitch Lowering Speed.........................................................................................35

AUXILIARY HYDRAULICS .................................................................................... 35

Hydraulic Block Type Outlet ...........................................................................................35

Hydraulic Control Unit Use Reference Chart..................................................................38

TIRES, WHEELS AND BALLAST.............................................................................. 39

TIRES..................................................................................................................... 39

Inflation Pressure............................................................................................................39

Dual Tires ....................................................................................................................... 39

WHEEL ADJUSTMENT ......................................................................................... 39

Front Wheels ..................................................................................................................39

Rear Wheels...................................................................................................................39

Treads.............................................................................................................................40

BALLAST ............................................................................................................... 41

Front Ballast.................................................................................................................... 41

Rear Ballast ....................................................................................................................41

CAB OPERATION ..................................................................................................... 42

DOOR AND WINDOW........................................................................................... 42

Locking and Unlocking the Door..................................................................................... 42

Opening the Door ...........................................................................................................42

CONTENTS

Rear Window ..................................................................................................................42

WORK LIGHT ........................................................................................................ 43

Work Light Switch...........................................................................................................43

Front Work Light .............................................................................................................43

Rear Work Light (if equipped).........................................................................................43

WIPER ................................................................................................................... 44

Front Wiper / Washer Switch..........................................................................................44

Rear Wiper Switch..........................................................................................................44

Using the Wipers in Cold Season...................................................................................44

AIR CONDITIONER ............................................................................................... 45

Airflow.............................................................................................................................45

Air Control Vent ..............................................................................................................45

Control Panel..................................................................................................................46

Operation........................................................................................................................47

REAR DEFOGGER................................................................................................ 50

Electrical Outlet...............................................................................................................50

MAINTENANCE......................................................................................................... 51

SERVICE INTERVALS .......................................................................................... 51

LUBRICANTS, FUEL AND COOLANT .................................................................. 54

PERIODIC SERVICE................................................................................................. 56

HOW TO OPEN THE HOOD ................................................................................. 56

Hood ...............................................................................................................................56

Front Grille......................................................................................................................56

Engine Side Cover..........................................................................................................57

DAILY CHECK ....................................................................................................... 57

Walk Around Inspection..................................................................................................57

Checking and Refueling..................................................................................................57

Checking Engine Oil Level.............................................................................................. 58

Checking Transmission Fluid Level................................................................................58

Checking Coolant Level..................................................................................................59

Cleaning Air Conditioner Condenser Screen.................................................................. 59

Cleaning Grill and Radiator Screen ................................................................................60

Checking Brake Pedal ....................................................................................................60

Checking Gauges, Meter and Easy Checker(TM) .......................................................... 60

Checking Head Light, Hazard Light etc. .........................................................................60

Checking Seat Belt and ROPS.......................................................................................60

Checking and Cleaning of Electrical Wiring and Battery Cables .................................... 61

Checking Movable Parts.................................................................................................61

EVERY 50 HOURS ................................................................................................ 61

Lubricating Grease Fittings............................................................................................. 61

Checking Engine Start System.......................................................................................62

Checking Wheel Bolt Torque..........................................................................................62

EVERY 100 HOURS .............................................................................................. 63

Checking Battery Condition ............................................................................................63

Changing Engine Oil....................................................................................................... 64

Cleaning Air Cleaner Primary Element ........................................................................... 65

Cleaning Fuel Filter......................................................................................................... 65

Adjusting Fan Belt Tension............................................................................................. 66

Adjusting Brake Pedal ....................................................................................................66

Checking Fuel Line.........................................................................................................67

CONTENTS

EVERY 200 HOURS .............................................................................................. 67

Replacing Engine Oil Filter .............................................................................................67

Checking Radiator Hose and Clamp ..............................................................................67

Adjusting Air-Conditioner Belt Tension...........................................................................68

Cleaning the Inner Air Filter............................................................................................68

Cleaning the Fresh Air Filter...........................................................................................69

Checking the Air conditioner Condenser .......................................................................69

Checking Intake Air Line................................................................................................. 69

Adjusting Toe-in.............................................................................................................. 70

EVERY 300 HOURS .............................................................................................. 70

Changing Transmission Fluid ......................................................................................... 70

Replacing Transmission Oil Filter...................................................................................71

Changing Front Axle Case Oil ........................................................................................72

EVERY 400 HOURS .............................................................................................. 72

Adjusting Front Axle Pivot [4WD]....................................................................................72

Replacing Fuel Filter Element.........................................................................................72

EVERY 800 HOURS .............................................................................................. 72

Adjusting Engine Valve Clearance .................................................................................72

EVERY 1500 HOURS ............................................................................................ 72

Checking Fuel Injection Nozzle Injection Pressure.........................................................72

EVERY 3000 HOURS ............................................................................................ 72

Checking Injection Pump................................................................................................72

EVERY 1 YEAR ..................................................................................................... 73

Replacing Air Cleaner Primary Element and Secondary Element.................................. 73

Checking the Air Conditioner Pipe and Hose .................................................................73

Checking the CAB Isolation Cushion.............................................................................. 73

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

Flushing Cooling System and Changing Coolant ...........................................................73

Anti-Freeze .....................................................................................................................74

Replacing Radiator Hose (Water pipes) .........................................................................74

Replacing Fuel Hose ......................................................................................................74

Replacing Intake Air Line................................................................................................ 74

Replacing the Air Conditioner Hose................................................................................74

SERVICE AS REQUIRED...................................................................................... 75

Bleeding Fuel System..................................................................................................... 75

Draining Clutch Housing Water ......................................................................................75

Replacing Fuse...............................................................................................................75

Replacing Light Bulb.......................................................................................................76

Lubricating Points ........................................................................................................... 76

Adding the Washer Liquid............................................................................................... 76

Checking the Amount of Refrigerant (gas) .....................................................................76

STORAGE ................................................................................................................. 78

TRACTOR STORAGE ........................................................................................... 78

REMOVING THE TRACTOR FROM STORAGE................................................... 78

TROUBLESHOOTING............................................................................................... 79

ENGINE TROUBLESHOOTING ............................................................................ 79

OPTIONS................................................................................................................... 80

SAFE OPERATION

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.

1. BEFORE OPERATING THE TRACTOR

1. Know your equipment and its limitations. Read this
entire manual before attempting to start and operate
the tractor.

2. Pay special attention to the danger, warning and
caution labels on the tractor.

3. KUBOTA recommends the use of a CAB or Roll Over
Protective Structures (ROPS) and seat belt in almost
all applications. This combination will reduce the risk
of serious injury or death, should the tractor be upset.
If the tractor is equipped with a foldable ROPS it may
be temporarily folded down only when absolutely
necessary for areas with height constraints.
(There is no operator protection provided by the ROPS
in the folded position. For operator safety the ROPS
should be placed in the upright and locked position
and the seat belt fastened for all other operations.)
If the 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 a ROPS because welding,
bending, drilling, grinding, or cutting may weaken the
structure.
A damaged CAB or ROPS structure must be replaced,
not repaired or revised.
If any structural member of the CAB or ROPS is
damaged, replace the entire structure at your local
KUBOTA Dealer.

1SAFE OPERATION

(1) ROPS
(2) Seat belt

(1) CAB
(2) Seat belt

4. Always use the seat belt if the tractor has a CAB or
ROPS.
Do not use the seat belt if a foldable ROPS is down or
there is no ROPS. Check the seat belt regularly and
replace if frayed or damaged.

5. Do not operate tractor or any implement attached to it
while under the influence of alcohol, medication,
controlled substances or while fatigued.

6. Carefully check the vicinity before operating tractor or
any implement attached to it. Check for overhead
clearance which may interfere with a CAB or ROPS.
Do not allow any bystanders around or near tractor
during operation.

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

SAFE OPERATION2

8. Never wear loose, torn, or bulky clothing around
tractor. It may catch on moving parts or controls,
leading to the risk of an accident. Use additional safety
items, e.g. hard hat, safety boots or shoes, eye and
hearing protection, gloves, etc., as appropriate or
required.

9. Do not allow passengers to ride on any part of the
tractor at anytime. The operator must remain in the
tractor seat during operation.

10.Check brakes, 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
"MAINTENANCE" section.)

11.Keep your tractor clean. Dirt, grease, and trash build
up may contribute to fires and lead to personal injury.

12.Use only implements meeting the specifications listed
under "IMPLEMENT LIMITATIONS" in this manual or
implements approved by KUBOTA.

13.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 3-point hitch to
improve stability. Follow the safe operating
procedures specified in the implement or attachment
manual.

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

2. OPERATING THE TRACTOR

C Starting

1. Always sit in the operator's seat when starting engine
or operating levers or controls. Adjust seat per
instructions in the operating the tractor section. Never
start engine while standing on the ground.

2. 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 has a CAB, a fixed
ROPS or a foldable ROPS in the upright and locked
position.

3. Do not start engine by shorting across starter
terminals or bypassing the safety start switch.
Machine may start in gear and move if normal starting
circuitry is bypassed.

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

5. Check before each use that operator presence
controls are functioning correctly. Test safety systems.
(See "Checking Engine Start System" in "EVERY 50
HOURS" in "PERIODIC SERVICE" section.)
Do not operate unless they are functioning correctly.

C Working

1. Pull only from the drawbar. Never hitch to axle housing
or any other point except drawbar; such arrangements
will increase the risk of serious personal injury or death
due to a tractor upset.

(1) Drawbar

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

3. Avoid sudden starts. To avoid upsets, slow down
when turning, on uneven ground, and before stopping.

4. The tractor cannot turn with the differential locked and
attempting to do so could be dangerous.

5. Do not operate near ditches, holes, embankments, or
other ground surface features which may collapse
under the tractor's weight. The risk of tractor upset is
even higher when the ground is loose or wet. Tall
grass can hide obstacles, walk the area first to be sure.

6. Watch where you are going at all times. Watch for and
avoid obstacles. Be alert at row ends, near trees, and
other obstructions.

7. When working in groups, always let the others know
what you are going to do before you do it.

8. Never try to get on or off a moving tractor.

C Safety for children

Tragedy can occur if the operator is not alert to the
presence of children. Children generally are attracted to
machines and the work they do.

1. Never assume that children will remain where you last
saw them.

2. Keep children out of the work area and under the
watchful eye of another responsible adult.

3. Be alert and shut your machine down if children enter
the work area.

4. Never carry children on your machine. There is no safe
place for them to ride. They may fall off and be run
over or interfere with your control of the machine.

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

6. Never allow children to play on the machine or on the
implement.

7. Use extra caution when backing up. Look behind and
down to make sure area is clear before moving.

3SAFE OPERATION

8. When parking your machine if at all possible park on a
firm, flat and level surface; if not, park across a slope.
Set the parking brake(s), lower the implements to the
ground, remove the key from the ignition and lock the
cab door (if equipped) and chock the wheels.

C Operating on slopes

Slopes are major factor related to loss-of-control and tip­over accidents, which can result in severe injury or death.
All slopes require extra caution.

1. To avoid upsets, always back up steep slopes. If you
cannot back up the slope or if you feel uneasy on it, do
not operate on it. Stay off slopes too steep for safe
operation.

2. Driving forward out of a ditch, mired condition or up a
steep slope increases the risk of a tractor to be upset
backward. Always back out of these situations. Extra
caution is required with four-wheel drive models
because their increased traction can give the operator
false confidence in the tractor's ability to climb slopes.

3. Keep all movement on slopes slow and gradual. Do
not make sudden changes in speed, direction or apply
brake and make sudden motions of the steering
wheel.

4. Avoid changing gears speed when climbing or going
down a slope. If on a slope changing gears to neutral
could cause loss of control.

4. Make sure that the Slow Moving Vehicle (SMV) sign is
clean and visible. Use hazard lights and turn signals as
required.

C Driving the tractor on the road

1. Lock the two brake pedals together to help assure
straight-line stops. Uneven braking at road speeds
could cause the tractor to tip over.

(1) Brake Pedal (LH)
(2) Brake Pedal (RH)
(3) Brake Pedal Lock

(A) Whenever travelling on the road

2. Check the front wheel engagement. The braking
characteristics are different between two and four
wheel drive. Be aware of the difference and use
carefully.

3. Always slow the tractor down before turning. Turning
at high speed may tip the tractor over.

(1)SMV emblem
(2) Bracket

5. Observe all local traffic and safety regulations.

6. Turn the headlights on.

7. Drive at speeds that allow you to maintain control at all
times.

8. Do not apply the differential lock while traveling at road
speeds. The tractor may run out of control.

9. 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.

10.Do not operate an implement while the tractor is on the
road. Lock the 3-point hitch in the raised position.

SAFE OPERATION4

11.When towing other equipment, use a safety chain and
place an SMV emblem on it as well.

(1) Safety chain

3. PARKING THE TRACTOR

1. Disengage the PTO, lower all implements to the
ground, place all control levers in their neutral
positions, set the parking brake, stop the engine, and
remove the key.

2. Make sure that the tractor has come to a complete
stop before dismounting.

3. Avoid parking on steep slopes, if at all possible park on
a firm and level surface; if not, park across a slope with
chock the wheels.
Failure to comply with this warning may allow the
tractor to move and could cause injury or death.

4. OPERATING THE PTO

1. Wait until all moving components have completely
stopped before getting off the tractor, connecting,
disconnecting, adjusting, cleaning, or servicing any
PTO driven equipment.

2. Keep the PTO shaft cover in place at all times.
Replace the PTO shaft cap when the shaft is not in
use.

(1) PTO Shaft cover
(2) PTO Shaft cap

(A) "NORMAL POSITION"
(B) "RAISED POSITION"

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

4. When operating stationary PTO driven equipment,
always apply the tractor parking brake and place
chocks behind and in front of the rear wheels. Stay
clear of all rotating parts. Never step over rotating
parts.

5. USING 3-POINT HITCH

1. Use the 3-point hitch only with equipment designed for
3-point hitch usage.

2. When using a 3-point hitch mounted implement, be
sure to install the proper counterbalance weight on the
front of the tractor.

3. When transporting 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"

(B) "SLOW"
(C) "LOCK"

6. SERVICING THE TRACTOR

Before servicing the tractor, park it on a firm, flat and level
surface, set the parking brake, lower all implements to the
ground, place the gear shift lever in neutral, stop the
engine and remove the key.

1. Allow the tractor time to cool off before working on or
near the engine, muffler, radiator, etc.

2. Always stop the engine before refueling. Avoid spills
and overfilling.

3. Do not smoke when working around battery or when
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 recharging.

4. Before "jump starting" a dead battery, read and follow
all of the instructions. (See "JUMP STARTING" in
"OPERATING THE ENGINE" section.)

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

6. Do not remove radiator cap while coolant is hot. When
cool, slowly rotate cap to the first stop and allow
sufficient time for excess pressure to escape before
removing the cap completely. If the tractor has a
coolant recovery tank, add coolant or water to the tank,
not the radiator. (See "Checking Coolant Level" in
"DAILY CHECK" in "PERIODIC SERVICE" section.)

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

8. 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.

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

5SAFE OPERATION

11.Do not work under any hydraulically supported
devices. They can settle, suddenly leak down, or be
accidentally lowered. If necessary to work under
tractor or any machine elements for servicing or
adjustment, securely support them with stands or
suitable blocking beforehand.

12.Always maintain the correct tire pressure. Do not
inflate tires above the recommended pressure shown
in the operator's manual.

13.Securely support the tractor when either changing
wheels or adjusting the wheel tread width.

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

15.Escaping hydraulic fluid under pressure has sufficient
force to penetrate skin, causing 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) Battery

10.Do not attempt to mount a tire on a rim. This should be
done by a qualified person with the proper equipment.

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

SAFE OPERATION6

16.Fluid escaping from pinholes may be invisible. Do not
use hands to search for suspected leaks; use a piece
of cardboard or wood. Use of safety goggles or other
eye protection is also highly recommended. If injured
by escaping fluid, see a medical doctor at once. This
fluid will produce gangrene or severe allergic reaction.

7. DANGER, WARNING AND CAUTION LABELS

7SAFE OPERATION

SAFE OPERATION8

9SAFE OPERATION

SAFE OPERATION10

11SAFE OPERATION

8. CARE OF DANGER, WARNING AND CAUTION LABELS

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

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

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

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

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

SERVICING OF TRACTOR

Your dealer is interested in your new tractor and has the
desire to help you get the most value from it. After reading
this manual thoroughly, you will find that you can do some
of the regular maintenance yourself.
However, when in need of 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
tractor, CAB and engine serial numbers.
Locate the serial numbers now and record them in the
space provided.

1SERVICING OF TRACTOR

Type Serial No.

Tractor

CAB / ROPS

Engine

Date of Purchase

Name of Dealer

(To be filled in by purchaser)

(1) CAB identification plate (CAB Serial No.)

(1) ROPS identification plate (ROPS Serial No.)

(1) Tractor identification plate
(2) Tractor serial number

(1) Engine serial number

2 SPECIFICATIONS

SPECIFICATIONS

SPECIFICATION TABLE

Model B2630HSD B3030HSD B3000HSDCC

PTO power kW (HP) 14.5 (19.5)* 17.1 (23.0)*

Maker KUBOTA

Model D1105-E3-D21 V1505-E3-D21 V1505-E3-D21-Q

Type Indirect Injection. Vertical, water-cooled 4 cycle diesel

Number of cylinders 3 4

Bore and stroke mm (in.) 78x78.4 ( 3.1x3.1)

Engine

Capacities

Dimensions

Weight (with ROPS or CAB) kg (lbs.) 810 (1786) 840 (1852) 1030 (2271)

Clutch N/A

Traveling
system

Total displacement cm (cu.in.) 1123 (68.5) 1498 (91.5)

Engine gross power kW (HP) 19.4 (26.0)* 22.3 (30.0)*

Rated revolution rpm 2800 2600

Low idling revolution rpm 1000-1100

Maximum torque N-m (ft-lb) 77.6 (57.2) 98.7 (72.7)

Battery 12 V, RC : 79 min, CCA : 430 A

Fuel tank L (U.S.gals.) 31 (8.1)

Engine crankcase
(with filter)

Engine coolant L (U.S.qts.) 4.5 (4.7) 5.2 (5.5)

Transmission case L (U.S.gals.) 15 (4.0)

Overall length (without 3P) mm (in.) 2520 (99.2) 2640 (103.9)

Overall width (min. tread) mm (in.) 1365 (53.7)

Overall height mm (in.) 1995 (78.5) 2150 (84.6)

Wheel base mm (in.) 1666 (65.6)

Minimum ground clearance mm (in.) 370 (14.6)

Front mm (in.) 935 (36.8)

Tread

Rear mm (in.) 1050 (41.3)

Front 7-12

Tires

Rear 12.4-16

Steering Hydrostatic type power steering

Transmission

Brake Wet disk type

Minimum turning radius
(with brake)

L (U.S.qts.) 3.0 (3.2) 4.1 (4.3)

Main-hydrostatic transmission,

3 range gear shift (3 forward, 3 reverse)

m (feet) 2.1 (6.9)

12 V, RC : 80 min,

CCA : 430 A

Model B2630HSD B3030HSD B3000HSDCC

Hydraulic control system Position control

3P: 21.2 (5.6),

Power steering:

16.0 (4.2)

1 speed

540 / 2768

1 speed

2500 / 2753

3P: 19.7 (5.2),

Power steering: 14.8 (3.9)

1 speed

540 / 2592

1 speed

2500 / 2600

Hydraulic
unit

PTO

Pump capacity

Three point hitch SAE Category 1

At lift points kg (lbs.) 970 (2139)

Max. lift force

Rear-PTO SAE 1-3/8, 6 splines

PTO / Engine speed rpm

Mid-PTO USA No. 5 (KUBOTA 10-tooth) involute spline

PTO / Engine speed rpm

24 in.behind

lift point

L / min

(gals / min)

kg (lbs.) 760 (1676)

NOTE: * Manufacturer's estimate The company reserves the right to change the specifications without notice.

3SPECIFICATIONS

4 SPECIFICATIONS

TRAVELING SPEEDS

(At rated engine rpm)

Model B2630

Tire size (Rear) 12.4 - 16 Farm 13.6 - 16 Turf

Range gear shift lever km / h mph km / h mph

Low 0 to 4.8 0 to 3.0 0 to 4.9 0 to 3.1

Forward

Reverse

Model B3030 / B3000

Tire size (Rear) 12.4 - 16 Farm 13.6 - 16 Turf

Range gear shift lever km / h mph km / h mph

Forward

Reverse

The company reserves the right to change the specification without notice.

Middle 0 to 8.9 0 to 5.5 0 to 9.1 0 to 5.7

High 0 to 18.6 0 to 11.5 0 to 19.0 0 to 11.8

Low 0 to 3.8 0 to 2.4 0 to 3.9 0 to 2.4

Middle 0 to 7.1 0 to 4.4 0 to 7.3 0 to 4.5

High 0 to 14.8 0 to 9.2 0 to 15.2 0 to 9.4

Low 0 to 5.0 0 to 3.1 0 to 5.2 0 to 3.2

Middle 0 to 9.4 0 to 5.8 0 to 9.6 0 to 6.0

High 0 to 19.5 0 to 12.1 0 to 20.0 0 to 12.4

Low 0 to 4.0 0 to 2.5 0 to 4.1 0 to 2.6

Middle 0 to 7.4 0 to 4.6 0 to 7.6 0 to 4.7

High 0 to 15.5 0 to 9.6 0 to 15.9 0 to 9.9

IMPLEMENT LIMITATIONS

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

Tread (max. width) with farm tires Lower link end max.

Front Rear

935 mm (36.8 in.) 1050 mm (41.3 in.) 360 kg (800 lbs.)

Actual figures

loading weight

W 0

5IMPLEMENT LIMITATIONS

Implement weight W 1

and / or size

As in the following list

(Shown on the next page)

Lower link end max. loading weight........The max. allowable load which can be put on the lower link end : W 0

Implement weight....................................The implement's weight which can be put on the lower link : W 1

Max. drawbar load...................................W 2

Trailer loading weight .............................The max. loading weight for trailer (without trailer's weight) : W 3

A Implement size may vary depending on soil operating conditions.

Max. Drawbar Load W 2

500 kg (1100 lbs.) 1500 kg (3300 lbs.)

Trailer loading weight W 3

Max. capacity

6 IMPLEMENT LIMITATIONS

Implement Remarks B2630 / B3030 / B3000

Mid-mount

Rotary-cutter

(1 Blade)

Mower

Rotary tiller

Bottom plow Max. size mm (in.) 305 (12) x 2

Disc plow Max. size mm (in.) 559 (22) x 2

Cultivator Max. size mm (in.)

Disc harrow

Sprayer Max. tank capacity L (U.S.gals.) 246 (65)

Front blade

Rear-mount

(2 or 3 Blades)

Flail-mower Max. cutting width mm (in.) 1220 (48)

Sickle bar Max. cutting width mm (in.) 1524 (60)

Max. cutting width
Max. weight

Max. cutting width
Max. weight

Max. cutting width
Max. weight

Max. tilling width
Max. weight
Slip clutch

Max. harrowing width
Max. weight

Max. cutting width
Sub frame

mm (in.)
kg (lbs.)

mm (in.)
kg (lbs.)

mm (in.)
kg (lbs.)

mm (in.)
kg (lbs.)

mm (in.)
kg (lbs.)

mm (in.) 1676 (66)

1830 (72)
205 (451)

1220 (48)
227 (500)

1830 (72)
227 (500)

1270 (50)
250 (550)

Necessary

1524 (60)

1 Row

1676 (66)
250 (550)

Necessary

Rear blade

Front loader

Box blade

Back hoe

Snow blower

Trailer

A Implement size may vary depending on soil operating conditions.

Max. cutting width
Max. weight

Max. lifting capacity
Max. width

Max. cutting width
Max. weight

Max. digging depth
Max. weight
Sub frame

Max. working width
Max. weight

Max. load capacity
Max. drawbar load

mm (in.)
kg (lbs.)

kg (lbs.)
mm (in.)

mm (in.)
kg (lbs.)

mm (in.)
kg (lbs.)

mm (in.)
kg (lbs.)

kg (lbs.)
kg (lbs.)

1676 (66)
250 (550)

400 (880)
1524 (60)

1372 (54)
227 (500)

2295 (90)
400 (880)

Necessary

1542 (60)
227 (500)

1500 (3300)

500 (1100)

7INSTRUMENT PANEL AND CONTROLS

INSTRUMENT PANEL AND CONTROLS

B Instrument Panel, Switches and Hand Controls

ILLUSTRATED CONTENTS

(1) Coolant temperature gauge .................. 26

(2) Turn signal / Hazard light indicator ........ 20

(3) Tachometer ........................................... 26

(4) Easy Checker(TM) ................................ 25

(5) Fuel gauge ............................................ 26

(6) Hourmeter ............................................. 26

(7) Turn signal light switch .......................... 20

(8) Head light switch ................................... 20

(9) Hazard light switch ................................ 20

(10) Key switch ........................................... 11

(11) Horn button ......................................... 20

8 INSTRUMENT PANEL AND CONTROLS

B Pedal Location Label

The label is located on the cover under seat.

(1) Steering wheel tilt pedal
(2) Brake pedal (left)
(3) Brake pedal (right)
(4) Brake pedal lock
(5) Speed control pedal (forward)
(6) Speed control pedal (reverse)
(7) Differential lock pedal

B Foot and Hand Controls

9INSTRUMENT PANEL AND CONTROLS

ILLUSTRATED CONTENTS ILLUSTRATED CONTENTS

(1) Parking brake lever........................................ 23,27 (11) Hand throttle lever....................................... 23

(2) Steering wheel tilt pedal................................. 19 (12) Brake pedal................................................. 21

(3) 3-Point hitch lowering speed knob................. 35 (13) Speed control pedal..................................... 23

(4) Differential lock pedal.................................... 27 (14) Position control lever...................................35

(5) PTO clutch lever............................................ 30 (15) Cruise control lever .................................... 24

(6) PTO select ever............................................. 29 (16) Front wheel drive lever ................................ 22

(7) Range gear shift lever................................... 22 (17) Operator's seat ........................................... 18

(8) Suspension adjust knob

[B3030, B3000 only] .......................................

(9) Seat belt........................................................ 19

(10) Cup holder

[Except B3000]..............................................

18

---

(18) Tool box....................................................... ---

10 PRE-OPERATION CHECK

PRE-OPERATION CHECK

DAILY CHECK

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

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

level surface with the engine shut off and the
parking brake "ON" and implement lowered to
the ground.

Check item

- Walk around inspection

- Check engine oil level

- Check transmission oil level

- Check coolant level

- Clean air conditioner condenser screen

- Clean grill and radiator screen

- Check air cleaner evacuator valve

(When used in a dusty place)

- Check brake pedal

- Check indicators, gauges and meter

- Check lights

- Check wire harness

- Check seat belt

- Check ROPS and CAB

- Check movable parts

- Refuel
(See "DAILY CHECK" in "PERIODIC SERVICE"

section.)

- Care of danger, warning and caution labels
(See "DANGER, WARNING AND CAUTION LABELS"
in "SAFE OPERATION" section.)

OPERATING THE ENGINE

A It is recommended that the operator practice engaging

To avoid personal injury:

A Read "Safe Operation" in the front of this manual.
A Read the danger, warning and caution labels

located on the tractor.

A To avoid the danger of exhaust fume poisoning,

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

A Never start engine while standing on ground.

Start engine only from operator's seat.

A Make it a rule to set all shift levers to the

"NEUTRAL" positions and to place PTO lever in
"OFF" position before starting the engine.

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

the starter is not continuously turned for more than 30
seconds.

and disengaging the parking brake on a flat surface
without the engine running before operating the tractor
for the first time.

2. Place the PTO clutch lever in "OFF"
position.

3. Make sure the cruise control lever is in
"NEUTRAL" position.
Place the speed control pedal in
"NEUTRAL" position.
Place the range gear shift lever (L-M­H) in "NEUTRAL" position.

11OPERATING THE ENGINE

STARTING THE ENGINE

1. Make sure the parking brake is set.

1. To set the parking brake;
(1) Interlock the brake pedals.
(2) Depress the brake pedals.
(3) Latch the brake pedals with the parking brake

lever.

2. To release the parking brake, depress the brake
pedals again.

(1) Parking brake lever (A) Interlock the brake pedals

(B) "DEPRESS"
(C) "PUSH-DOWN"

(1) Cruise control lever
(2) Speed control pedal
(3) Range gear shift lever (L-M-H)

A Depress the both brake pedals together, doing so the

cruise control lever automatically returns to the off
position.

A Step out the foot from speed control pedal, doing so

the pedal automatically returns to the neutral position.

(N) "NEUTRAL
POSITION"

O ....Cruise

"NEUTRAL
POSITION"

OPERATING THE ENGINE12

4. Place the position control lever in
"LOWEST" position.

(1) Position control lever (A) "DOWN"

5. Set the throttle lever to about 1/2 way.

6. Insert the key into the key switch and
turn it "ON".

"OFF"
"ON"
"PREHEAT"
"START"

C Check Easy Checker(TM) lamps:

1. When the key is turned "ON", lamps (3) (4) should
come on. If trouble should occur at any location while
the engine is running, the warning lamp corresponding
to that location comes on.

(1) Hand throttle lever "INCREASE"

"DECREASE"

(1) Easy checker(TM)
(2) Key switch
(3) Engine oil pressure
(4) Electrical charge
(5) Glow plug indicator

A Daily checks with the Easy Checker(TM) only are not

sufficient. Never fail to conduct physical daily checks
carefully by referring to "DAILY CHECK" section.
(See "DAILY CHECK" in "PERIODIC SERVICE"
section.)

13OPERATING THE ENGINE

7. Turn the key to "PREHEAT" position
and hold it for about 2 to 3 seconds.

For the appropriate preheating time, refer to the table
below:

Temperature Preheating Time

Over 0 C (32 F) 2 to 3 sec.

0 to -5 C (32 to 23 F) 5 sec.

-5 to -15 C (23 to 5 F) 10 sec.

A Glow plug indicator (5) comes on while engine is being

preheated.

8. Turn the key to "START" position and
release when the engine starts.

A Because of the safety devices, the engine will not start

except when the PTO clutch lever is placed in the
"OFF" position and speed control pedal is placed in the
"NEUTRAL" position.

STOPPING THE ENGINE

1. After slowing the engine to idle, turn the
key to "OFF".

2. Remove the key.

C Cold Weather Starting

When the ambient temperature is below -5 (23 ) and
the engine is very cold. If the engine fails to start, turn off
the key for 30 seconds. Then repeat steps 7 and 8. To
protect the battery and the starter, make sure that the
starter is not continuously turned for more than 30
seconds.

BBlock Heater (Option)

A block heater is available as an option from your dealer.
It will assist you in starting your tractor when the ambient
temperature is below -15 (5 )

9. Check to see that all the lamps on the
Easy Checker(TM) are "OFF".

If a lamp is still on, immediately stop the engine and
determine the cause.

OPERATING THE ENGINE14

WARMING UP

To avoid personal injury:
A Be sure to set the parking brake during warm-

up.

A Be sure to set all shift levers to the "NEUTRAL"

positions and to place PTO clutch lever in
"OFF" position during warm-up.

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

BWarm-up Transmission Oil at Low

Ambient Temperatures

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

Ambient temperature Warm-up time requirement

Above 0 C (32 F) At least 5 minutes

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

-10 to -20 C (14 to -4 F) 10 to 15 minutes

Below -20 C (-4 F) More than 15 minutes

JUMP STARTING

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

sparks, and flames away from battery.

A If tractor battery is frozen, do not jump start

engine.

A Do not connect other end of negative (-) jumper

cable to negative (-) terminal of tractor battery.

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

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

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

3. Put on safety goggles and rubber gloves.

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

5. Cover vent holes with damp rags. Do not allow the rag
to touch the battery terminals.

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 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. (Steps 8, 7 and 6).

11.Remove and discard the damp rags.

A Do not operate the tractor under full load condition until

it is sufficiently warmed up.

(1) Dead battery
(2) Lay a damp rag over the vent caps
(3) Jumper cables
(4) Helper battery

15OPERATING THE ENGINE

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

system.

A Use only same voltage for jump starting.
A Use of a higher voltage source on tractors electrical

system could result in severe damage to tractor's
electrical system.
Use only matching voltage source when "Jump
starting" a low or dead battery condition.

16 OPERATING THE TRACTOR

OPERATING THE TRACTOR

OPERATING NEW TRACTOR

How a new tractor is handled 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 care should be taken to
operate the tractor for the first 50 hours at a slower speed
and avoid excessive work or operation until the various
parts become "broken-in." The manner in which the
tractor is handled 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
handling a new tractor, the following precautions should
be observed.

BDo not Operate the Tractor at Full Speed

for the First 50 Hours

A Do not start quickly nor apply the brakes suddenly.
A In winter, operate the tractor after fully warming up the

engine.

A Do not run the engine at speeds faster than

necessary.

A On rough roads, slow down to suitable speeds.

Do not operate the tractor at fast speed.
The above precautions are not limited only to new
tractors, but to all tractors. But it should be especially

observed in the case of new tractors.

OPERATING FOLDABLE ROPS

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

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

A Fold the ROPS down only when absolutely

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

A Before proceeding to fold ROPS, check for any

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

BTo Fold the ROPS

1. Remove both set bolts.

BChanging Lubricating Oil for New Tractors

The lubricating oil is especially important in the case of a
new tractor. 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; and this may
wear out or damage the parts. Therefore, care should be
taken to change the lubricating oil a little earlier than
would ordinarily be required.
For further details of change interval hours, see
"MAINTENANCE" section.

(1) Set bolt
(2) Hair pin

2. Fold the ROPS.

To avoid personal injury:

A Hold the ROPS tightly with both hands and fold

the ROPS slowly and carefully.

(1) ROPS

17OPERATING THE TRACTOR

BTo Raise the ROPS to Upright Position

1. Remove both hair pins and set bolts.

(1) Set bolt
(2) Hair pin

2. Raise ROPS to the upright position.

3. Align set bolt holes and insert both set bolts. Slightly

tighten the set bolts and secure them with the hair

pins.

To avoid personal injury:

A Make sure that both set bolts are properly

installed and secured with the hair pins.

(1) Set bolt
(2) Hair pin

To avoid personal injury:
A Raise the ROPS slowly and carefully.

3. Align set bolt holes, insert both set bolts. Slightly
tighten the set bolts and secure them with the hair
pins.

To avoid personal injury:
A Make sure that both set bolts are properly

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

(1) Set bolt
(2) Hair pin

OPERATING THE TRACTOR18

BAdjustment of Foldable ROPS

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

the cotter pin (1), tighten the nut (2) until you feel the
right friction in the movement and then replace the
cotter pin.

(1) Cotter pin
(2) Nut

STARTING

1. Adjusting the operator's position.

BOperator's Seat

To avoid personal injury:
A Make sure that the seat is completely secured

after each adjustment.

A Do not allow any person other than the driver to

ride on the tractor.

C Position adjustment

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

(1) Seat
(2) Position adjust lever
(3) Arm rest

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

that the seat is properly locked.

(A) "PULL IN"

C Suspension adjustment
[B3030 and B3000 only]

Turn the suspension adjust knob to achieve the optimum
suspension setting.

(1) Suspension adjust knob (A) To decrease tension

(B) To increase tension

C Armrest angle adjustment

The armrest angle can be adjusted by the hex socket bolt
(socket size 7/32").

19OPERATING THE TRACTOR

BSeat Belt

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

CAB is installed.

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

down or there is no ROPS.

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

(1) Hex socket bolt

(1) Seat belt

BTilt Steering Adjustment

To avoid personal injury:
A Do not adjust the steering wheel while the

tractor is in motion.

Press down the steering wheel pedal, to release the lock
so the steering wheel can be adjusted to one of three
desired positions.

(1) Steering wheel tilt pedal (A) "PRESS DOWN"

OPERATING THE TRACTOR20

2. Selecting light switch positions.

BHead Light / Turn Signal / Hazard Light

Switch

C Head Light Switch

(A) .....Head light OFF.

(B) .....Head light ON.

C 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 counter-clockwise. The corresponding right and
left turn signal lights and indicator on the instrument panel
will flash. Turn signal is active when key switch is in the
"ON" position.

A Be sure to return switch to center position after turning.

C Hazard Light Switch

When hazard light switch is pushed, the hazard lights
flash along with the indicator on the instrument panel.
Press the hazard light switch again to turn off the light.
The hazard light switch is operative, even when the key
switch is at "OFF" position.

(1) Head light switch
(2) Turn signal light switch

(A) "OFF"
(B) "ON"

BHorn Button

The horn will sound when the key switch is in the "ON"
position and the horn button pressed.

A The indicator in the hazard light switch will light up

when the head light switch is turned on.

(1) Turn signal light switch
(2) Head light switch
(3) Hazard light switch
(4) Hazard / Turn signal indicator

(1) Horn button (A) "PUSH"

21OPERATING THE TRACTOR

3. Checking the brake pedal.

BBrake Pedals (Right and Left)

To avoid personal injury:
A Applying only one rear wheel brake at high

speeds could cause the tractor to swerve or
roll-over.

To avoid personal injury:
A An accident may occur if the tractor is

suddenly braked, such as by heavy towed
loads shifting forward or loss of control.

A The braking characteristics are different

between two and four wheel drive. Be aware of
the difference and use carefully.

A When driving on icy, wet or loose surfaces,

make sure the tractor is correctly ballasted to
avoid skidding and loss of steering control.
Operate at reduced speed.

4. Raise the implement.
(See "HYDRAULIC UNIT" section.)

(1) Position control lever (A) "UP"

1. Before operating the tractor on the road or before
applying the parking brake, be sure to interlock the
right and left pedals as illustrated below.

2. Use individual brakes to assist in making sharp turns
at slow speeds (Field Operation Only). Disengage the
brake pedal lock and depress only one brake pedal.

3. Be sure brake pedals have equal adjustment when
using locked together.

(1) Brake pedal lock (A) "LOCK"

(B) "RELEASE"

OPERATING THE TRACTOR22

5. Selecting the Travel Speed.

BRange Gear Shift Lever (L-M-H)

The range gear shift can only be shifted when tractor is
completely stopped.

Do not force the range gear shift lever.

A If it is difficult to shift the range shift lever into neutral

position;
(1) Depress the brake pedal firmly for several

seconds.

(2) Without reducing the brake pedal force, shift the

range shift lever.

A If it is difficult to shift the range shift lever into "L", "M"

or "H" from neutral position;
(1) Slightly depress the speed control pedal to rotate

the gears inside of transmission.

(2) Release the speed control pedal to neutral

position.

(3) Shift the range shift lever.

A To avoid damage of transmission, stop tractor before

shifting between ranges.

BFront Wheel Drive Lever

To avoid personal injury:
A Do not engage the front wheel drive when

traveling at road speed.

A When driving on icy, wet or loose surfaces,

make sure the tractor is correctly ballasted to
avoid skidding and loss of steering control.
Operate at reduced speed and engage front
wheel drive.

A An accident may occur if the tractor is

suddenly braked, such as by heavy towed
loads shifting forward or loss of control.

A The braking characteristics are different

between two and four wheel drive. Be aware of
the difference and use carefully.

Use the lever to engage the front wheels with the tractor
stopped. Shift the lever to "ON" to engage the front wheel
drive.

(1) Range gear shift lever
(L-M-H)

(H) "HIGH"
(M) "MIDDLE"
(L) "LOW"
(N) "NEUTRAL POSITION"

(1) Front wheel drive lever "ON" "OFF"

A To avoid damage of transmission, when front wheel

drive lever is not smoothly shifted, slightly step forward
or rearward on speed control pedal.

A Tires will wear quickly if front wheel drive is engaged

on paved roads.

C Front wheel drive is effective for the following

jobs:

1. 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.

2. When working in sandy soil.

3. When working on a hard soil where a rotary tiller might
push the tractor forward.

4. Additional braking at reduced speeds.

23OPERATING THE TRACTOR

6. Accelerate the Engine.

BHand Throttle Lever

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

(1) Hand Throttle lever "INCREASE"

"DECREASE"

7. Unlock the Parking Brake.

8. Depress the Speed Control Pedal.

BSpeed Control Pedal

To avoid personal injury:
A Do not operate if tractor moves on level ground

with foot off of Speed Control Pedal.

A Consult your local KUBOTA Dealer.

Forward Pedal

Depress the speed control pedal with the toe of your right
foot to move forward.

Reverse Pedal

Depress the speed control pedal with the heel of your right
foot to move backward.

BParking Brake Lever

To release the parking brake, depress the brake pedals
again.

(1) Brake pedals

(1) Speed control pedal (A) "FORWARD"

(B) "REVERSE"

A To prevent serious damage to the HST, do not adjust

the stopper bolts.

A When you stand up from the seat with the speed

control pedal stepped on or the cruise control lever
engaged (ON), the engine will stop regardless of
whether the machine is moving or not. This is become
the tractor is equipped with Operator Presence Control
system (OPC).

OPERATING THE TRACTOR24

BCruise Control Lever

To avoid personal injury:
A Pull the cruise control lever completely to the

rear before starting the engine.

A Do not use the cruise control when driving on

the road.

A Be sure to connect both the left and the right

brakes when driving on the road. The speed
cruise control won't be released with single
brake activation.

Cruise control is designed for tractor operating efficiency
and operator comfort. This device will provide a constant
forward operating speed by mechanically holding the
cruise control lever at the selected position.

C To engage Cruise Control Device

1. The proper forward speed will be maintained if you
apply the cruise control lever at any position.

2. To operate faster than the set speed, depress the
speed control pedal further down in this condition. The
set speed will be resumed if you release the pedal.

C To disengage Cruise Control Device
A Move the lever all the way back and then to

"NEUTRAL" position to release the cruise control.

A Depress both brake pedals.

A When releasing the cruise mode, be sure to return the

cruise control lever fully backward.

(1) Cruise control lever (A) "INCREASE"

(B) "DECREASE"
(C) "NEUTRAL"

A When you stand up from the seat with the speed

control pedal stepped on or the cruise control lever
engaged (ON), the engine will stop regardless of
whether the machine is moving or not. This is because
the tractor is equipped with Operator Presence Control
system (OPC).

A Cruise control will be disengaged automatically when

both brake pedals are depressed.

A The cruise control device does not disengage when

the individual right or left brake is applied.

A Cruise control device will not operate in reverse.
A Preferably set the cruise control lever, while holding

down the speed control pedal. This makes the setting
smoother.

25OPERATING THE TRACTOR

STOPPING

BStopping

1. Slow the engine down.

2. Step on the brake pedal.

3. After the tractor has stopped, disengage the PTO,
lower the implement to the ground, shift the
transmission to neutral and set the parking brake.

CHECK DURING DRIVING

BImmediately Stop the Engine if:

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

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

BEasy Checker (TM)

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

Engine oil pressure
If the oil pressure in the engine goes below the
prescribed level, the warning lamp in the Easy
Checker(TM) will come on.
If this should happen during operation, and it does
not go off when the engine is accelerated to more
than 1000 rpm, check level of engine oil.
(See "Checking Engine Oil Level" in "DAILY
CHECK" in "PERIODIC SERVICE" section.)

Electrical charge
If the alternator is not charging the battery, the
warning lamp in the Easy Checker(TM) will come
on.
If this should happen during operation, check the
electrical charging system or consult your local
KUBOTA Dealer.

(1) Easy checker(TM)
(2) Fuel gauge
(3) Coolant temperature gauge

A For checking and servicing of your tractor, consult

your local KUBOTA Dealer for instructions.

OPERATING THE TRACTOR26

BFuel Gauge

When the key switch is on, the fuel gauge indicates the
fuel level.
Be careful not to empty the fuel tank. Otherwise air may
enter the fuel system.
Should this happen, the system should be bled. (See
"Bleeding Fuel System" in "SERVICE AS REQUIRED" in
"PERIODIC SERVICE" section.)

BCoolant Temperature Gauge

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

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

1. With the key switch at "ON", this gauge indicates the
temperature of the coolant. "C" for "cold" and "H" for
"hot".

2. If the indicator reaches the "H" position (red zone),
engine coolant is overheated. Check the tractor by
referring to "TROUBLESHOOTING" section.

(1) Fuel gauge (A) "EMPTY"

(B) "FULL"

(1) Coolant temperature gauge

BHourmeter / Tachometer

This meter gives readings for engine speed, PTO shaft
speed and the hours the tractor has been operated.

1. The tachometer indicates the engine speed and the
540 PTO shaft speed location on the dial.

2. The hourmeter indicates in five digits the hours the
tractor has been used; the last digit indicates 1/10 of
an hour.

(1) Engine revolution
(2) Hours used

(A) PTO: 540 rpm

27OPERATING THE TRACTOR

PARKING

BParking

To avoid personal injury:
A Always set the parking brake, stop the engine

and remove the key before leaving the tractor
seat.

1. When parking, be sure to set the parking brake.
To set the parking brake;
(1) Interlock the brake pedals.
(2) Depress the brake pedals.
(3) Latch the brake pedals with the parking brake

lever.

OPERATING TECHNIQUES

BDifferential Lock

To avoid personal injury due to loss of steering
control:
A Do not operate the tractor at high speed with

differential lock engaged.

A Do not attempt to turn with the differential lock

engaged.

A Be sure to release the differential lock before

making a turn in field conditions.

If one of the rear wheels should slip, step on the
differential lock pedal. Both wheels will turn together, then
reduce slippage.
Differential lock is maintained only while the pedal is
depressed.

(1) Parking brake lever (A) Interlock the brake pedals

(B) "DEPRESS"
(C) "PUSH-DOWN"

2. Before getting off the tractor, disengage the PTO,
lower all implements to the ground, place all control
levers in their neutral positions, set the parking brake,
stop the engine and remove the key.

3. If it is necessary to park on an incline, be sure to chock
the wheels to prevent accidental rolling of the
machine.

(1) Differential lock pedal (A) Press to "ENGAGE"

(B) Release to "DISENGAGE"

A When using the differential lock, always slow the

engine down.

A To prevent damage to power train, do not engage

differential lock when one wheel is spinning and the
other is completely stopped.

A If the differential lock cannot be released in the above

manner, step lightly on the brake pedals alternately.

OPERATING THE TRACTOR28

BOperating the Tractor on a Road

To avoid personal injury:
A To help assure straight line stops when driving

at transport speeds, lock the brake pedals
together. Uneven braking at road speeds could
cause the tractor to roll-over.

A 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.

A Towed equipment (without brake) must not

exceed 1.5 times the tractor weight when
traveling on roads or at high speeds.

Be sure SMV emblem and hazard light are clean and
visible. If towed or rear-mounted equipment obstructs
these safety devices, install SMV emblem and hazard
light on equipment.
Consult your local KUBOTA dealer for further detail.

BOperating on Slopes or Rough Terrain

To avoid personal injury:
A Always back up when going up a steep slope.

Driving forward could cause the tractor to tip
over backward. Stay off hills and slopes too
steep for safe operation.

A Avoid changing gears when climbing or

descending a slope.

A If operating on a slope, never disengage shift

levers to neutral. Doing so could cause loss of
control.

A 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.

1. Slow down for slopes, rough ground, and sharp turns,
especially when transporting heavy, rear mounted
equipment.

2. Before descending a slope, be sure that the range
lever is in the low so that speed can be controlled
without using brakes.

BDirections for Use of Power Steering

1. 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.

2. When the steering wheel is turned all the way to the
stop, the relief valve is activated. Do not hold the
steering wheel in this position for a long period of time.

3. Avoid turning the steering wheel while the tractor is
stopped, or tires may wear out sooner.

4. The power steering mechanism makes the steering
easier. Be careful when driving on a road at high
speeds.

(1) SMV emblem
(2) Bracket
(3) Hazard light

PTO

29PTO

PTO OPERATION

To avoid personal injury:
A Before operation, be sure to select the correct

PTO lever (mid, mid/rear, rear).

To avoid personal injury:
A Disengage PTO, stop engine, and allow all

rotating components to come to a complete
stop before connecting, disconnecting,
adjusting, or cleaning any PTO driven
equipment.

BPTO Select Lever

The tractor has a 540 rpm rear PTO speed and a 2500
rpm mid-PTO speed.

C Rear PTO

To use rear PTO, shift the PTO select lever to rear PTO
position and the PTO clutch lever to "ON" position.

A To avoid shock loads to the PTO, reduce engine

throttle from full to half speed by pushing up on engine
throttle when engaging the PTO, then open the throttle
to the recommended speed.

A To avoid damage of transmission, when PTO select

lever is not smoothly shifted, slightly shift PTO clutch
lever.

A To avoid damage of transmission, do not shift PTO

select lever until the PTO has stopped completely.

C Mid-PTO

The Mid-PTO is available for KUBOTA approved
implements.

(1) PTO select lever (A) Rear-PTO position

(B) Mid-Rear-PTO position
(C) Mid-PTO position

C Mid-PTO

To use Mid-PTO, shift the PTO select lever to Mid-PTO
position and the PTO clutch lever to "ON" position.

C Mid-Rear PTO

To use mid and rear PTO at the same time, shift the PTO
select lever to mid-rear PTO position and the PTO clutch
lever to "ON" position.

(1) Mid-PTO

C Mid-PTO

B2630 B3030/B3000

Engine speed rpm 2753 2600

PTO speed rpm 2500 2500

C Rear PTO

B2630 B3030/B3000

Engine speed rpm 2768 2592

Shaft 6-spline 6-spline

PTO speed rpm 540 540

PTO30

BPTO Clutch Lever

1. The PTO clutch lever engages or disengages the PTO
clutch which gives the PTO independent control.

2. Shift the lever to "ON" to engage the PTO clutch. Shift
the lever to "OFF" to disengage the PTO clutch.

(1) PTO clutch lever "ON" "ENGAGE"

"OFF" "DISENGAGE"

A To avoid shock loads to the PTO, reduce engine

throttle from full to half speed by pushing up on engine
throttle when engaging the PTO, then re-engage the
engine to full.

A To avoid damage to PTO clutch and implement, shift

the PTO clutch lever slowly, when engaging the PTO
clutch. Do not keep the PTO clutch lever half way.

BPTO shaft Cover and Shaft Cap

Keep the PTO shaft cover in place at all times. Replace
the PTO shaft cap when the PTO is not in use. Before
connecting or disconnecting a drive shaft to PTO shaft, be
sure 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"

A Tractor engine will not start if the PTO clutch lever is in

the engaged "ON" position.

A When you stand up from the seat with the PTO clutch

lever at "ON" position, the engine will stop regardless
of the position of the PTO select lever.
This is because the tractor is equipped with Operator
Presence Control system (OPC).

BStationary 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 brakes and place blocks at the tires.

2. Make sure the shift levers are at NEUTRAL, and start
the engine .

3. Set the PTO select lever to rear only position.

4. Dismount the seat and tilt up.

5. Set the PTO clutch lever to engage "ON".

6. Set the engine speed to provide recommended rear
PTO speed.

31PTO

(1) Seat
(2) PTO clutch lever
(3) PTO select lever

"ON"
"OFF"

A If the PTO clutch lever is shifted to "ON"(Engaged)

position under the following condition, the engine will
stop itself.
(1) The range gear shift lever (H-M-L) is not at

"NEUTRAL" position.

(2) The PTO select lever is not at "REAR PTO"

position.

(3) The seat is not tilted forward.

32 THREE-POINT HITCH & DRAWBAR

THREE-POINT HITCH & DRAWBAR

(1) Top link
(2) Top link holder
(3) Lifting rod (Left)
(4) Telescopic stabilizers
(5) Lower link (Telescopic type)
(6) Lifting rod (Right, Ratchet type)
(7) Drawbar

33THREE-POINT HITCH & DRAWBAR

3-POINT HITCH

1. Make preparations for attaching
implement.

BSelecting the holes of lifting rods and

lower links

There are two holes in the lower links. For most
operations the lifting rods should be attached to the (A)
holes.

(1) Lower links
(2) Lifting rods

holes:(A),(B)

BDrawbar

Remove the drawbar if a close mounted implement is
being attached.

2. Attaching and detaching implements

To avoid personal injury:

A Be sure to stop the engine and remove the key.
A Do not stand between tractor and implement

unless parking brake is applied.

A Before attaching or detaching implement,

locate the tractor and implement on a firm, flat
and level surface.

A Whenever an implement or other attachment is

connected to the tractor 3-point hitch, check
full range of operation for interference, binding
or PTO driveline separation.

BLifting Rod (Right, Ratchet type)

To level a 3-point mounted implement,

1. Press the up and down changing lever.

2. Turn the adjusting handle from side to side to shorten
or lengthen the adjustable lifting rod with the
implement on the ground.

A The lifting rods may be attached to (B) hole for higher

lifting height. (with reduced lifting force)

BSelecting the Top Link Mounting Holes

Select the proper set of holes by referring to the
"Hydraulic Control Unit Use Reference Chart" in
"HYDRAULIC UNIT" section.

A After adjustment, be sure to lock the adjusting handle

with the handle stopper.

(1) Up and down changing lever
(2) Adjusting handle
(3) Handle stopper

(A) To shorten the lifting rod
(B) To lengthen the lifting rod

BTop Link

1. Adjust the angle of the implement to the desired
position by shortening or lengthening the top link.

2. The proper length of the top link varies according to
the type of implement being used.

THREE-POINT HITCH & DRAWBAR34

BTelescopic Stabilizers

Adjust the telescopic stabilizers to control horizontal sway
of the implement. Select the proper set of holes by
referring to the "Hydraulic Control Unit Use Reference
Chart" in "AUXILIARY HYDRAULICS" in "HYDRAULIC
UNIT" section.
After aligning satisfactorily, insert the set-pin through any
one of the eight holes on the outer tube that align with one
of the holes on the inner bar, both stabilizers will be
locked.
If the set-pin is inserted through the slot to engage one of
the holes on the inner bar, a limited degree of sway will be
permitted.

(1) Lever (A) "PUSH"

(B) "PULL OUT"

DRAWBAR

(1) Outer tube
(2) Inner bar
(3) Set-pin
(4) Hole
(5) Slot

BTelescopic Lower Links

To attach an implement, follow the instructions below:

1. Push the levers, pull out the lower link ends, and
attach to the implement.

2. Back up the tractor slightly to make sure the lower links
are pushed in securely.

To avoid personal injury:
A Never pull from the top link, the rear axle or any

point above the drawbar. Doing so could cause
the tractor to tip over rearward causing
personal injury or death.

BAdjusting Drawbar Length

When towing an implement, use of (B) hole in drawbar is
recommended.
The acceptable drawbar load is provided in the
"IMPLEMENT LIMITATIONS" section.

(1) PTO Shaft cap
(2) Drawbar
(3) Drawbar pin

Hole : (A), (B)

HYDRAULIC UNIT

35HYDRAULIC UNIT

3-POINT HITCH CONTROL SYSTEM

BPosition Control

This will control the working depth of 3-point hitch
mounted implement regardless of the amount of pull
required.

(1) Position control lever (A) "FLOAT"

(B) "DOWN"
(C) "UP"

B3-point Hitch Lowering Speed

AUXILIARY HYDRAULICS

Two hydraulic outlets (mid and rear) are provided on the
tractor.

BHydraulic Block Type Outlet

Hydraulic block type outlet is useful when adding
hydraulically operated equipment such as front end
loader, front blade, etc.

When implement is attached

1. Remove the block cover.

2. Attach the block outlet cover. (option)

[Mid outlet]

To avoid personal injury:
A Fast lowering speed may cause damage or

injury. Lowering speed of implement should be
adjusted to two or more seconds.

The lowering speed of the 3-point hitch can be controlled
by adjusting the 3-point hitch lowering speed knob.

(1) 3-point hitch lowering speed knob (A) "FAST"

(B) "SLOW"
(C) "LOCK"

(1) Block cover
(2) Block outlet cover (option)
(3) Outlet
(4) Inlet
(5) Hydraulic block

(A) From gear pump
(B) To implement inlet
Max. flow
[B2630]: 21.2L/min
(5.6 U.S.gals./min)
[B3030/B3000]: 19.7 L/min
(5.2 U.S.gals./min)
No relief valve in the
hydraulic block.
(C) From implement outlet

HYDRAULIC UNIT36

A For mid outlet, be sure to use the control valve of the

"Power beyond type" (with relief valve that has a third
line return to tank).

A The "tank" port flow from implement valve should be

connected to the port located on the right hand side of
transmission case.

(1) Return port

[Rear outlet]

(1) Block cover
(2) Block outlet cover (option)
(3) Outlet
(4) Inlet

(A) To implement inlet
Max. flow
[B2630]: 21.2 L/min
(5.6 U.S.gals./min)
[B3030/B3000]: 19.7 L/min
(5.2 U.S.gals./min)
Max. pressure
[B2630]: 15.2 to 16.2 MPa
(155 to 165 kgf/ )
(2204 to 2349 psi)
[B3030/B3000]:

15.0 to 16.0 MPa
(153 to 163 kgf/ )
(2175 to 2320 psi)
(B) from implement outlet

A If the implement control valve has a relief valve, the

tank port flow from implement should be connected to
the port located on the right hand side of transmission
case.

(1) Return port

37HYDRAULIC UNIT

38 HYDRAULIC UNIT

BHydraulic Control Unit Use Reference Chart

In order to handle the hydraulics properly, the operator must be familiar with the following. Though this information may not
be applicable to all types of implements and soil conditions, it is useful for general conditions.

Implement

Soil condition

Light soil

Moldboard plow

Disc plow ---

Harrower (spike,
springtooth, disc
type)

Sub-soiler .........

Weeder, ridger

Earthmover,
digger, scraper,
manure fork, rear

carrier ......

Mower (mid-and
rear-mount type),
hayrake, tedder...

Medium soil

Heavy soil

---

---

Top link mounting

holes

(1) is standard.

(2) is used only
when there is
some obstacle
that prevents you
from using the
standard.

(1) Position
control lever

Position control

Gauge

wheel

YES/NO Loose

YES

YES/NO

Telescopic

stabilizers

Tighten

Remarks

Insert the set-pin
through the slot on
the outer tube that
align with one of the
holes on the inner
bar.

For implements
with gauge wheels,
lower the
implements to the
ground.

Telescopic
stabilizer should be
tight enough to
prevent excessive
implement
movement when
implement is in
raised position.
For implements
with gauge wheels,
lower the
implements to the
ground.

39TIRES, WHEELS AND BALLAST

TIRES, WHEELS AND BALLAST

TIRES

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

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

A Always maintain the correct tire pressure.

Do not inflate tires above the recommended
pressure shown in the operator's manual.

A Do not use tires other than those approved by

KUBOTA.

BInflation Pressure

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.

Tire sizes Inflation Pressure

12.4-16, 4PR 110 kPa (1.1 kgf/cm , 16 psi)

Rear

Front

A Maintain the maximum recommended pressure in the

BDual Tires

Dual tires are not approved.

13.6-16, 4PR 100 kPa (1.0 kgf/cm , 14 psi)

12.4-16Ind, 4PR 138 kPa (1.4 kgf/cm , 20 psi)

A6-12, 4PR 200 kPa (2.0 kgf/cm , 28 psi)

7-12, 4PR 170 kPa (1.7 kgf/cm , 24 psi)

24x8.50-14, 4PR 150 kPa (1.5 kgf/cm , 22 psi)

23x8.50-14Ind, 4PR 241 kPa (2.5 kgf/cm , 35 psi)

24x8.50-12, 4PR 160 kPa (1.6 kgf/cm , 23 psi)

front tires, when using a front loader or when equipped
with a full load of front weights.

WHEEL ADJUSTMENT

To avoid personal injury:
A When working on slopes or when working with

trailer, set the wheel tread as wide as practical
for maximum stability.

A Support tractor securely on stands before

removing a wheel.

A Do not work under any hydraulically supported

devices. They can settle, suddenly leak down,
or be accidentally lowered. If necessary to work
under tractor or any machine elements for
servicing or adjustment, securely support them
with stands or suitable blocking beforehand.

A Never operate tractor with a loose rim, wheel,

or axle.

BFront Wheels

Front tread width can not be adjusted.

A Do not turn front discs to obtain wider tread.

In setting up the front wheels, make sure that the
inflation valve stem of the tires face outward.

A When re-fitting or adjusting a wheel, tighten the bolts

to the following torques then recheck after driving the
tractor 200 m (200 yards) and 10 times of shuttle
movement by 5 m (5 yards), and thereafter according
to service interval. (See "MAINTENANCE" section.)

BRear Wheels

Rear tread width can not be adjusted.

A When re-fitting or adjusting a wheel, tighten the bolts

to the following torques then recheck after driving the
tractor 200 m (200 yards) and 10 times of shuttle
movement by 5 m (5 yards), and thereafter according
to service interval. (See "MAINTENANCE" section.)

TIRES, WHEELS AND BALLAST40

BTreads

C USA models

Front

7-12 Farm 24x8.50-14 Turf 23x8.50-14 Ind.

12.4-16 Farm 13.6-16 Turf 12.4-16 Ind

Rear

C Except USA models

Front

12.4-16 Farm 13.6-16 Turf

A6-12 Farm 24x8.50-12 Turf

Rear

41TIRES, WHEELS AND BALLAST

BALLAST

To avoid personal injury:
A Additional ballast will be needed for

transporting heavy implements. When the
implement is raised, drive slowly over rough
ground, regardless of how much ballast is
used.

A Do not fill the front wheels with liquid.

BFront Ballast

Add weights if needed for stability and improving traction.
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.

C 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.

[For installation of up to three weights]

A Besides the weight, mounting bolt kit(s) are required

for mounting the weight.

[For installation of up to five weights]

A Besides the weight, a front weight bracket and

mounting bolt kit(s) are required for mounting the
weight.

BRear Ballast

Add weight to rear wheels if needed to improve traction or
for stability. The amount of rear ballast should be matched
to job and the ballast should be removed when it is not
needed.
The weight should be added to the tractor in the form of
liquid ballast.

C Liquid Ballast in Rear Tires

Water and calcium chloride solution provides safe
economical ballast. Used properly, it will not damage tires,
tubes or rims. The addition of calcium chloride is
recommended to prevent the water from freezing. Use of
this method of 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 12.4 - 16

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.)
CaCl per 4 L (1 gal) of water]

Slush free at -47 (-52 )
Solid at -52 (-62 )
[Approx. 2.25 kg (5 lbs.)
CaCl per 4 L (1 gal) of water]

85 kg

(187 lbs.)

89 kg

(196 lbs.)

94 kg

(207 lbs.)

(1) Front end weights
(2) Front weight bracket (option)

A Do not overload tires.
A Add no more weight than indicated in chart.

Maximum weight 25 kg x 5 pieces (275 lbs.)

A Do not fill tires with water or solution more than 75% of

full capacity (to the level of valve stem at 12 o'clock
position).

(1) Air
(2) Water

(A) Correct : 75% Full
Air compresses like a cushion
(B) Incorrect : 100% Full
Water can not be compressed

42 CAB OPERATION

CAB OPERATION

DOOR AND WINDOW

BLocking and Unlocking the Door

From the outside ...... Insert the key into the door lock.

Turn the key clockwise to unlock
the door. To lock the door, turn
the key in the opposite direction.
The key can be removed when it
is in the vertical direction.

From the inside ....... Push down the lock knob to lock

the door.
Pull up the lock knob to unlock
the door.

BOpening the Door

From the outside ...... Unlock the door, and pull the

outer door handle.

(1) Outer door handle
(2) Door lock

(A) "PULL"

(1) Inner door handle
(2) Lock knob

(A) "PULL"
(B) "PUSH" (Lock)
(C) "PULL" (Unlock)

BRear Window

Turn the rear window handle clockwise to the vertical
position and push the handle. The rear window is opened
by the gas spring cylinder.

(1) Rear window handle (A) "OPEN"

(B) "CLOSE"

From the inside ........ Unlock the door and pull the

inner door handle.

43CAB OPERATION

WORK LIGHT

BWork Light Switch

Turn on the key switch and press the top half of the work
light switch. The work light and the switch's indicator light
up. Press the bottom half of the work light switch to turn
off the light and indicator.

BFront Work Light

(1) Front work light

BRear Work Light (if equipped)

(1) Front work light switch
(2) Rear work light switch
(if equipped)

(1) Rear work light

(A) Indicator for work lights

CAB OPERATION44

WIPER

BFront Wiper / Washer Switch

When the button marked is pressed to the first step,
the wiper only is activated.
When the button is pressed further to the second step,
washer liquid jets out.
The washing continues while the button is pressed and
wiper is activated continuously. (Washer liquid jets out to
the rear window also.)
Hold down the bottom half of the switch when the front
wiper is off, and washer liquid will keep jets out.
To wet the glass before activating the wipers, press the
bottom half of the switch. (Washer liquid jets out to the
rear window also.)

A Do not activate the wipers when the windows are dry,

they may be scratched.
Be sure to jet washer liquid first and then activate the
wipers.

BUsing the Wipers in Cold Season

1. While not used in cold season, keep the wiper blades
off the windshield to prevent them from being stuck
with ice.

2. If the windshield is covered with snow, scrape it off the
windshield before using the wipers.

3. If the wiper blades are stuck on the windshield with ice
and fail to move, be sure to turn the main key switch to
"OFF" and remove the ice off the blades. Then place
the main key switch back to "ON".

4. When commercially available cold-season wiper
blades are used, make sure their size is the same as
or smaller than that of the standard ones.

A In cold season, the wiper blades and the wiper motor

might get overloaded causing damage. To avoid this,
be sure to take the above precautions.

(1) Front wiper / washer switch

BRear Wiper Switch

1. Press the upper half of the wiper switch, and the wiper
is activated. Press the lower half of the wiper switch,
and the wiper stops at the initial position.

2. To jet washer liquid, push the front wiper / washer
switch. (Washer liquid jets out to the front window
also.)

(1) Rear wiper switch

45CAB OPERATION

AIR CONDITIONER

BAirflow

Air in the CAB and fresh air introduced into the CAB flow
as shown below. Adjust the seven air ports to obtain the
desired condition.

(1) Control panel
(2) Recirculation /
Fresh air selection lever
(3) Front air outlet
(defrost, windshield, foot area)
(4) Side air outlet (face, back area)
(5) Door air outlet (door area)

(A) Inner air recirculation

BAir Control Vent

C Front air outlet

The front air outlets can be independently adjusted as
required. To defrost the windshield, rotate the outlets
toward the windshield.

(1) Front air outlet (A) "WINDSHIELD"

(B) "CLOSED"
(C) "CHEST AREA"

C Side air outlet and door air outlet

The side and door air outlets can be adjusted to direct air
on to the operator, door window or the rear of the CAB.

(B) Fresh air inlet

(1) Side air outlet
(2) Door air outlet

A If the airflow rate at the face is too low, close the front

air outlet.

CAB OPERATION46

To avoid personal injury;

A Replace the water hoses every two years.
A Daily inspection

Have the tractor repaired immediately if any of
the following defects are discovered.
(Such defects may cause burns or injury. They
may also cause engine seizure or other serious
failure.)
A Scratches, cracks or swelling in water

hoses.

A Water leakage at water hose joints.
A Missing or damaged water hose protective

wrap or grommets.

A Loose mounting bolts, damaged brackets.

A Do not touch the water hoses and the heater

with your hand. You may get burned.

A If the window fails to defrost in extreme

conditions or becomes cloudy when
dehumidifying the CAB, wipe off moisture with
a soft cloth.

A Do not block all the air outlets of the air

conditioner. A problem could occur.

A When heating, do not keep the lever at the

"RECIRCULATION" position for a long time. The
windshield easily gets foggy.

A While working in a dusty conditions, keep the lever at

the "FRESH AIR" position. This increases the
pressure in the CAB, which helps prevent dust from
coming into the CAB.

BControl Panel

C Recirculation / fresh air selection lever

FRESH AIR: Set the lever to the position,

and fresh air will flow into the CAB.
This is helpful when you work in
dusty conditions or if the glass
windows get foggy.

RECIRCULATION: Set the lever to the position,

and the in-CAB air will be
recirculated. This is useful for
cooling or heating the CAB quickly
or keeping it extra cool or warm.

(1) Mode lever
(2) Temperature control lever
(3) Blower switch
(4) Air conditioner switch with indicator light

C Mode lever

Set the mode lever to the desired position.

Air is blown from the front and side air outlets.
Air is blown from only the front air outlets.

C Temperature Control Lever

Set this lever at the desired position to obtain the optimum
air temperature. Move the lever to the right to obtain
warmer air. Move it to the left to obtain cooler air.

C Blower Switch

Air volume can be changed in three steps. At the "HI"
position, the largest air volume is obtained.

C Air Conditioner Switch

Push this switch to activate the air conditioner. An
indicator light will light up when the switch is set to "ON".
Push the switch again to turn the air conditioner off, in
which case the indicator light will be off.

(1) Recirculation /
fresh air selection lever

"FRESH AIR"

"RECIRCULATION"

BOperation

C Heating

1. Set the mode lever to the or position.

2. Set the recirculation / fresh air selection lever to the
"FRESH AIR" position. To raise the temperature in the
CAB quickly, set this lever to the "RECIRCULATION"
position.

3. Adjust the blower (LO/ME/HI) switch and the
temperature control lever to achieve a comfortable
temperature level.

(1) Mode lever
(2) Blower switch

47CAB OPERATION

C Cooling or dehumidifying-heating

1. Set the mode lever to the position.

2. Rotate the front air outlet toward the chest area.

3. Set the recirculation / fresh air selection lever to the
"FRESH AIR" position. To reduce the temperature in
the CAB quickly, set this lever to the
"RECIRCULATION" position.

4. Press and turn on the air-conditioner switch with
indicator.

5. Turn on the blower (LO/ME/HI) switch.

6. Adjust the temperature control lever to the "COOL" or
an intermediate position to achieve a comfortable
temperature level.

(1) Front air outlet (A) "CHEST AREA"

(B) "FOOT AREA"
(C) "CLOSED"

A In summer when the heater is not used, keep the

temperature control lever at the "COOL" (leftmost)
position. Otherwise, hot air will raise the temperature
in the CAB.

(1) Mode lever
(2) Temperature control lever
(3) Blower switch
(4) Air conditioner switch with indicator light

CAB OPERATION48

C Foot warming and head cooling

1. Set the mode lever to the position.

2. In the cooling or dehumidifying-heating mode, set the
temperature control lever at the center position.

3. Open the front air outlet and direct it to your feet.

4. You can feel your head cool and your feet warm.

(A) "CHEST AREA"

(1) Temperature control lever

(1) Front air outlet (A) "FOOT AREA"

C Defrosting or demisting

To defrost or demist the windshield, take the following
steps.

1. Set the mode lever to the position.

2. Open the front air outlet, door air outlet and direct it to
the windshield.

3. Shut the side air outlet.

4. Set the recirculation / fresh air selection lever to the
"FRESH AIR" position.

5. Set the blower switch and the temperature control
lever to the "HI" and "WARM" (rightmost) positions,
respectively.

49CAB OPERATION

(1) Mode lever
(2) Temperature control lever

(1) Front air outlet (A) "WINDSHIELD"

CAB OPERATION50

REAR DEFOGGER

To activate the rear window defogger, press the switch
marked while the key switch is in the "ON" position.
To turn the defogger off, push down the switch marked
"OFF".

(1) Defogger switch

A The battery will discharge if the defogger and the key

switch remain in the "ON" or "ACC" positions with the
engine stopped.
Always use the defogger with the engine running.

BElectrical Outlet

An electrical outlet is supplied for use with implement.

(1) Accessory electrical outlet (20A)

MAINTENANCE

SERVICE INTERVALS

51MAINTENANCE

No

.

Clogging
of air
conditioner

1

condenser
screen
[CAB only]

Engine oil

2

Engine oil

3

filter

Transmission

4

oil filters

Transmission

5

fluid

Front axle

6

case oil

Front axle

7

pivot

Engine start

8

system

Greasing

9

Wheel bolt

10

torque

Battery

11

condition

Air cleaner
element
[Double
element type]
Primary
element

12

Air cleaner
element
[Double
element type]
Secondary
element

Fuel filter
element

13

Fan belt

14

Brake

15

Items

50 100 150 200 250 300 350 400 450 500 550 600 650 700 800

Clean Daily 59

Change

Replace

Replace

Change

Change

Adjust

Check

-

Check

Check

Clean

Replace

Replace

Clean

Replace

Adjust

Adjust

Indication on hour meter

Since

then

every

100 Hr

every

200 Hr

every

300 Hr

every

300 Hr

every

300 Hr

every

400 Hr

every
50 Hr

every
50 Hr

every
50 Hr

every

100 Hr

every

100 Hr

every

1 year

every

1 year

every

100 Hr

every

400 Hr

every

100 Hr

every

100 Hr

Ref

page

64

67

71

70

72

72

62

61

62

63 *5

65 *1

73 *2

@

73

65

@

72

66

66

52 MAINTENANCE

No

.

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Items

Tension of air
conditioner
drive belt
[CAB only]

Clogging of
inner air filter
[CAB only]

Clogging of
fresh air filter
[CAB only]

Clogging of
air
conditioner
condenser
[CAB only]

Radiator
hose and
clamp

Fuel line

Intake air line

Toe-in

Engine valve
clearance

Fuel injection
nozzle
Injection
pressure

Injection
pump

Air
conditioner
pipes
and hoses
[CAB only]

CAB isolation
cushion
[CAB only]

Cooling
system

Coolant

Adjust

Clean

Clean

Check

Check

Replace

Check

Replace

Check

Replace

Adjust

Adjust

Check

Check

Check

Replace

Check

Flush

Change

Indication on hour meter

50 100 150 200 250 300 350 400 450 500 550 600 650 700 800

Since

then

every

200 Hr

every

200 Hr

every

200 Hr

every

200 Hr

every

200 Hr

every

2 year

every

100 Hr

every

2 year

every

200 Hr

every

2 year

every

200 Hr

every

800 Hr

every

1500 Hr

every

3000 Hr

every

1 year

every

2 year

every

1 year

every

2 year

every

2 year

Ref

page

68

68

69

69

67

74

67

@

74 *3

69

@

74 *3

70

72 *4

72 *4 @

72 *4 @

73

74

73

73

73

53MAINTENANCE

No

.

31 Fuel system Bleed

Clutch

32

housing
water

33 Fuse Replace 75

34 Light bulb Replace 76

Washer

35

liquid
[CAB only]

Amount of
refrigerant

36

(gas)
[CAB only]

Items

50 100 150 200 250 300 350 400 450 500 550 600 650 700 800

Drain 75

Check 76

Check 76

Indication on hour meter

Since

then

service

as

required

Ref

page

75

A The jobs indicated by must be done after the first 50 hours of operation.

*1 Air cleaner should be cleaned more often in severe dusty conditions.
*2 Every year or after 6 cleanings.
*3 Replace only if necessary.
*4 Consult your local KUBOTA Dealer for this service.
*5 When the battery is used for less than 100 hours per year, check the fluid level annually.

A The items listed above (@ marked) are registered as emission related critical parts by KUBOTA in the U.S.EPA nonroad

emission regulation. As the engine owner, you are responsible for the performance of the required maintenance on the
engine according to the above instruction.
Please see the Warranty Statement in detail.

54 MAINTENANCE

LUBRICANTS, FUEL AND COOLANT

No. Locations

1 Fuel 31 L (8.1 U.S.gals.)

2 Coolant (with recovery tank) 4.5 L (4.7 U.S.qts.)

3 Engine crankcase

4 Transmission case 15 L (4.0 U.S.gals.) KUBOTA UDT or SUPER UDT fluid*

5 Front axle case 4.7 L (5.0 U.S.qts.) KUBOTA UDT or SUPER UDT fluid* or SAE80 - SAE 90 gear oil

Greasing No. of greasing points Capacity Type of grease

Top link 1

6

Lift rod [RH] 1

Speed control pedal 1

Battery terminals 2 moderate amount

B2630 B3030 B3000

3.0 L

(3.2 U.S.qts.)

Capacities

4.1 L (4.3 U.S.qts.)

5.2 L

(5.5 U.S.qts.)

Lubricants

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 CD, CE or CF

Above 25 (77 ) SAE30, SAE10W-30 or 15W-40

0 to 25 (32 to 77 ) SAE20, SAE10W-30 or 15W-40

Below 0 (32 ) SAE10W, SAE10W-30 or 15W-40

Until grease overflows.

Multipurpose Grease

NLGI-2 OR NLGI-1

(GC-LB)

NO TE: *KUBOTA UDT or SUPER UDT fluid --- KUBOTA original transmission hydraulic fluid

C Engine Oil:

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

Engine Oil according to the ambient temperatures as shown above:

A With the emission control now in effect, the CF-4 and CG-4 lubricating oils have been developed for use of a low-

sulfur fuel on on-road vehicle engines. When an off-road vehicle engine runs on a high-sulfur fuel, it is advisable to
employ the "CF or better" lubricating oil with a high Total Base Number (TBN of 10 minimum).

A 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 (low-sulfur or high-sulfur fuel).

55MAINTENANCE

Fuel used

High Sulfur Fuel
[ 0.05% (500 ppm)]

Low Sulfur Fuel
[<0.05% (500 ppm)] or
Ultra Low Sulfur Fuel
[<0.0015% (15 ppm)]

EGR: Exhaust Gas Re-circulation
A The CJ-4 engine oil is intended for DPF (Diesel Particulate Filter) type engines, and cannot be used on this tractor.

Models B2630, B3030,B3000 ---

C Fuel:

A Cetane number of 45 minimum. Cetane number greater than 50 is preferred, especially for temperatures below

-20 or elevations above 1500 m.

A If diesel fuel with sulfur content greater than 0.5% (5000 ppm) sulfur content is used, reduce the service interval for

engine oil and filter by 50%.

A NEVER use diesel fuel with sulfur content greater than 0.05% (500 ppm) for EXTERNAL EGR type engine.
A DO NOT use diesel fuel with sulfur content greater than 1.0% (10000 ppm).
A Diesel fuels specified to EN 590 or ASTM D975 are recommended.
A No.2-D is a distillate fuel of lower volatility for engines in industrial and heavy mobile service. (SAE J313 JUN87)

C Transmission Oil:

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

A Indicated capacities of water and oil are manufacturer's estimate.

Oil class of engines except external EGR Oil class of engines with external EGR

CF

(If the "CF-4, CG-4, CH-4 or CI-4" lubricating oil is
used with a high-sulfur fuel, change the lubricating
oil at shorter intervals. (approximately half))

CF, CF-4, CG-4, CH-4 or CI-4

except external EGR with external EGR

Engine oil classification (API classification)

---

CF or CI-4
(Class CF-4, CG-4 and CH-4 engine oils
cannot be used on EGR type engines)

56 PERIODIC SERVICE

PERIODIC SERVICE

HOW TO OPEN THE HOOD

To avoid personal injury from contact with moving
parts;
A Never open the hood or engine side cover while

the engine is running.

A Do not touch muffler or exhaust pipes while

they are hot; Severe burns could result.

A Support hood with other hand while unlocking

support link.

BHood

To open the hood, twist the mascot to release the latch
and open the hood.

BFront Grille

1. To remove the front grill, loosen knob bolts, pull
outward as indicated by arrows, and then lift the front
grill off.

(1) Front grill
(2) Knob bolt

2. To attach the front grill, fit the projections of the cover
bottom into the insertion holes and tighten up the knob
bolts.

(1) Mascot
(2) Hood

A To close the hood, hold the hood and release the

support rod.

(1) Support rod (A) "HOLD"

(A) "OPEN"

(B) "PULL"

57PERIODIC SERVICE

BEngine Side Cover

1. Slightly pull the arrow-marked part "A" of the cover
upward and outward.

2. Slightly raise the front end to draw the pins out of the
holes.

3. Pull the cover toward yourself off position.

4. To attach the cover, take the reverse order. Finally fit
the notches and push the arrow-marked parts inward.

A Removing the side cover

DAILY CHECK

For your own safety and maximum service life of the
machine, make a thorough daily inspection before
operating the machine to start the engine.

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

flat place with the engine shut off and the
parking brake "ON".

BWalk Around Inspection

Look around and under the tractor for such items as loose
bolts, trash build-up, oil or coolant leaks, broken or worn
parts.

BChecking and Refueling

To avoid personal injury:

A Do not smoke while refueling.
A Be sure to stop the engine before refueling.

A Attaching the side cover

1. Turn the key switch to "ON", check the amount of fuel
by fuel gauge.

2. Fill fuel tank when fuel gauge shows 1/4 or less fuel in
tank.

3. Use grade No.2-Diesel fuel at temperatures above

-10 (14 ).
Use grade No.1-Diesel fuel at temperatures below

-10 (14 ).

(1) Fuel tank cap

Fuel tank capacity 31 L (8.1 U.S.gals.)

PERIODIC SERVICE58

A Do not permit dirt or trash to get into the fuel system.
A Be careful not to let the fuel tank become empty,

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

A Be careful not to spill during refueling. If should spill,

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

A To prevent condensation (water) accumulation in the

fuel tank, fill the tank before parking overnight.

BChecking Engine Oil Level

To avoid personal injury:
A Be sure to stop the engine before checking the

oil level.

1. Park the machine on a flat surface.

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

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

BChecking Transmission Fluid Level

1. Park the machine on a flat surface, lower the
implement and shut off engine.

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

(1) Oil inlet
(2) Dipstick

(A) Oil level is acceptable within this range.

(1) Oil inlet
(2) Dipstick

(A) Oil level is acceptable within this range.

A When using an oil of different maker or viscosity from

the previous one, remove all of the old oil.
Never mix two different types of oil.

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

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

59PERIODIC SERVICE

BChecking Coolant Level

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

hot. When cool, slowly rotate cap to the first
stop and allow sufficient time for excess
pressure to escape before removing the cap
completely.

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

2. When the coolant level drops due to evaporation, add
soft water only up to the full level.
In case of leakage, add anti-freeze and soft water in
the specified mixing ratio up to the full level.
(See "Flushing Cooling System and Changing
Coolant" in "EVERY 2 YEARS" in "PERIODIC
SERVICE" section.)

BCleaning Air Conditioner Condenser

Screen

[CAB only]

To avoid personal injury:
A Be sure to stop the engine before removing the

screen.

1. Detach the air conditioner condenser screen and
remove all foreign materials.

(1) Recovery tank (A) "FULL"

(B) "LOW"

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

caution above and securely retighten the cap.

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

recovery tank.

A If water should leak, consult your local KUBOTA

Dealer.

(1) Air conditioner condenser screen

A Grill and screen must be clean from debris to prevent

engine from overheating and to allow good air intake
for air cleaner.

PERIODIC SERVICE60

BCleaning Grill and Radiator Screen

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

before removing the screen.

1. Check front grill and side screens to be sure they are
clean of debris.

2. Detach the screen and remove all foreign material and
clean the front of radiator completely.

BChecking Brake Pedal

1. Inspect the brake pedals for free travel, and smooth
operation.

2. Adjust if incorrect measurement is found:
(See "Adjusting Brake Pedal" in "EVERY 100 HOURS"
in "PERIODIC SERVICE" section.)

BChecking Gauges, Meter and Easy

Checker(TM)

1. Inspect the instrument panel for broken gauge(s),
meter(s) and Easy Checker(TM).

2. Replace if broken.

BChecking Head Light, Hazard Light etc.

1. Inspect the lights for broken bulbs and lenses.

2. Replace if broken.

BChecking Seat Belt and ROPS

1. Always check condition of seat belt and ROPS
attaching hardware before operating tractor.

2. Replace if damaged.

(1) Radiator screen (A) "DETACH"

A Grill and screen must be clean from debris to prevent

engine from overheating and to allow good air intake
for the air cleaner.

A If the dust or chaff has accumulated between the

battery and radiator, open the shutter plate and clean
the front of radiator completely.

(1) Shutter plate (A) "PULL"

61PERIODIC SERVICE

BChecking and Cleaning of Electrical

Wiring and Battery Cables

To avoid personal injury:
A A loosened terminal or connector, or damaged

wire may affect the performance of electrical
components or cause short circuits. Leakage
of electricity could result in a fire hazard, a
dead battery or damage to electrical
components.

A Replace damaged wires or connections

promptly.

A If a fuse blows soon after replacement, DO NOT

USE A LARGER THAN RECOMMENDED FUSE
OR BYPASS THE FUSE SYSTEM.

A Many wiring connections are protected by

waterproof plugs, plug and unplug these
connections carefully and make sure they are
sealed correctly after assembly.

A Accumulation of dust, chaff and spilled fuel

deposits around the battery, electrical wiring,
engine or exhaust system are fire hazards.
CLEAN THESE AREAS BEFORE STARTING
WORK.
To avoid premature electrical malfunctions DO
NOT APPLY high pressure water directly to
battery, wiring, connectors, electrical
components or instrument panel.

EVERY 50 HOURS

BLubricating Grease Fittings

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

(1) Grease fitting (Speed control pedal)

Inspect the following regularly:

1. Check wiring for chafed or cracked insulation.

2. Check wiring harness clamps. Replace if necessary.

3. Check connectors and terminals for looseness,
contamination or overheated (discolored)
connections.

4. Check instrument panel for correct operation of
switches and gauges.

Consult your KUBOTA Dealer regarding maintenance,
diagnosis and repair.

BChecking Movable Parts

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

(1) Grease fitting (Top link)
(2) Grease fitting (Lifting rod, right)

(1) Battery terminals

PERIODIC SERVICE62

BChecking Engine Start System

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

testing.

A If the tractor does not pass the test, do not

operate the tractor.

C Preparation before testing.

1. Sit on operator's seat.

2. Set the parking brake and stop the engine.

3. Shift the range gear shift lever to "NEUTRAL" position.

4. Place the speed control pedal in "NEUTRAL" position.

5. Shift the PTO clutch lever to "OFF" position.

C Test : Switch for the speed control pedal.

1. Depress the speed control pedal.

2. Turn the key to "START" position.

3. The engine must not crank.

4. If it cranks, consult your local KUBOTA Dealer for this
service.

C Test : Switch for the PTO clutch lever.

1. Place the speed control pedal in "NEUTRAL" position.

2. Shift the PTO clutch lever to "ON" position.

3. Turn the key to "START" position.

4. The engine must not crank.

5. If it cranks, consult your local KUBOTA Dealer for this
service.

C Test : Switches for the operator's seat and the PTO

clutch lever.

1. Sit on the operator's seat.

2. Start the engine.

3. Engage the PTO clutch lever.

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

5. The engine must shut off after approximately 1
second.

6. If it does not stop, consult your local KUBOTA Dealer
for this service.

(1) Range gear shift lever (L-M-H)
(2) PTO clutch lever
(3) Speed control pedal

BChecking Wheel Bolt Torque

To avoid personal injury:
A Never operate tractor with a loose rim, wheel,

or axle.

A Any time bolts and nuts are loosened, retighten

to specified torque.

A Check all bolts and nuts frequently and keep

them tight.

Check wheel bolts and nuts regularly especially when
new. If they are loose, tighten them as follows.

(1) Nut: 77 to 90 N-m (7.9 to 9.2 kgf-m, 57 to 67 ft-lbs.)
(2) Bolt: 196 to 225 N-m (20 to 23 kgf-m, 145 to 166 ft-lbs.)
Nut: 167 to 191 N-m (17 to 19.5 kgf-m, 123 to 141 ft-lbs.)

EVERY 100 HOURS

BChecking Battery Condition

To avoid the possibility of battery explosion:
For the refillable type battery, follow the
instructions below.
A Do not use or charge the refillable type battery

if the fluid level is below the LOWER (lower limit
level) mark. Otherwise, the battery component
parts may prematurely deteriorate, which may
shorten the battery's service life or cause an
explosion. Check the fluid level regularly and
add distilled water as required so that the fluid
level is between the UPPER and LOWER levels.

To avoid personal injury:
A Never remove the vent caps while the engine is

running.

A Keep electrolyte away from eyes, hands and

clothes. If you are spattered with it, wash it
away completely with water immediately and
get medical attention.

A Wear eye protection and rubber gloves when

working around the battery.

(1) Battery
(2) Indicator

C How to read the indicator

Check the battery condition by reading the indicator.

State of indicator display

Green

Black Needs charging battery.

White Needs replacing battery.

C Battery Charging

Specific gravity of electrolyte and quality of
electrolyte are both in good condition.

63PERIODIC SERVICE

The factory-installed battery is of non-refillable
type. If the indicator turns white, do not charge the
battery but 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.

To avoid personal injury:
A When the battery is being activated, hydrogen

and oxygen gases in the battery are extremely
explosive. Keep open sparks and flames away
from the battery at all times, especially when
charging the battery.

A When charging the battery, ensure the vent

caps are securely in place. (if equipped)

A 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.

A Never check battery charge by placing a metal

object across the posts.
Use a voltmeter or hydrometer.

PERIODIC SERVICE64

(1) Battery

1. To slow charge the battery, connect the battery
positive terminal to the charger positive terminal and
the negative to the negative, then recharge in the
standard fashion.

2. 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.

3. The battery is charged if the indicator display turns
green from black.

4. When exchanging an old battery for a new one, use
battery of equal specification shown in table 1.

BChanging Engine Oil

To avoid personal injury:
A Be sure to stop the engine before changing the

oil.

A Allow engine to cool down sufficiently, oil can

be hot and can burn.

1. To drain the used oil, remove the drain plug at the
bottom of the engine and drain the oil completely into
the oil pan.
All the used oil can be drained out easily when the
engine is still warm.

2. After draining reinstall the drain plug.

3. Fill with the new oil up to the upper notch on the
dipstick.
(See "LUBRICANTS" in "MAINTENANCE" section.)

B2630 3.0 L (3.2 U.S.qts.)

Oil capacity with filter

B3030/

B3000

4.1 L (4.3 U.S.qts.)

[TABLE 1]

Battery

Type

55B24L(S)-

MF

Capacity

Volts

(V)

5H.R

12 36 80 430 4.5

Reserve

at

at

(min)

Cold

Cranking

Amps

Normal

Charging

Rate(A)

C Direction for Storage

1. When storing the tractor for a long period, remove the
battery from tractor, adjust the electrolyte to the proper
level and store in a dry place out of direct sunlight.

2. The battery self-discharges while it is stored.
Recharge it once every three months in hot seasons
and once every six months in cold seasons.

(1) Oil inlet
(2) Dipstick

(A) Oil level is acceptable within this range

(1) Drain plug (both sides)

65PERIODIC SERVICE

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

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

A Do not touch the secondary element except in cases

where replacing is required.
(See "Replacing Air Cleaner Secondary Element" in
"EVERY 1 YEAR" in "PERIODIC SERVICE" section.)

C Evacuator Valve

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

BCleaning Air Cleaner Primary Element

1. Remove the air cleaner cover and primary element.

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

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

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

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

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

A Check to see if the evacuator valve is blocked with

dust.

BCleaning Fuel Filter

This job should not be done in the field, but in a clean
place.

1. Loosen and remove the filter bowl, and rinse the inside
with kerosene.

2. Take out the element and dip it in the kerosene to
rinse.

3. After cleaning, reassemble the fuel filter, keeping out
dust and dirt.

4. Bleed the fuel system.
(See "SERVICE AS REQUIRED" in "PERIODIC
SERVICE" section.)

A When the fuel filter bowl has been removed, fuel stops

flowing from the fuel tank. If the fuel tank is almost full,
however, the fuel will flow back from the fuel return
pipe to the fuel filter. Before checking, make sure the
fuel tank is less than half-full.

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

(1) Fuel filter bowl (A) "LOOSEN"

(B) "TIGHTEN"

PERIODIC SERVICE66

(1) O ring
(2) Filter element
(3) Filter bowl

A If dust, dirt or water enters the fuel system, the fuel

pump and injection nozzles are subject to premature
wear. To prevent this, be sure to clean the fuel filter
bowl and element periodically.

BAdjusting Fan Belt Tension

To avoid personal injury:
A Be sure to stop the engine before checking belt

tension.

Proper fan belt
tension

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.

A deflection of between 7 to 9 mm
(0.28 to 0.35 in.) when the belt is
pressed in the middle of the span.

(1) Bolt (A) Check the belt tension

(B) To tighten

BAdjusting Brake Pedal

To avoid personal injury:
A Stop the engine and chock the wheels before

checking brake pedal.

30 to 40 mm (1-3/16 to 1-19/32 in.)

Proper brake pedal
free travel

1. Release the parking brake.

2. Slightly depress the brake pedals and measure free
travel at the top of pedal stroke.

3. If adjustment is needed, loosen the lock nut and turn
the turnbuckle to adjust the rod length within
acceptable limits.

4. Retighten the lock nut.

on the pedal

Keep the free travel in the right
and left brake pedals equal.

(A) "FREE TRAVEL"

(1) Lock nut
(2) Turnbuckle

BChecking Fuel Line

1. Check to see that all lines and hose clamps are tight
and not damaged.

2. If hoses and clamps are found worn or damaged,
replace or repair them at once.

67PERIODIC SERVICE

EVERY 200 HOURS

BReplacing Engine Oil Filter

To avoid personal injury:
A Be sure to stop the engine before changing the

oil filter cartridge.

A Allow engine to cool down sufficiently, oil can

be hot and can burn.

1. Remove the oil filter.

2. Put a film of clean engine oil on the rubber seal of the
new filter.

3. Tighten the filter quickly until it contacts the mounting
surface.
Tighten filter by hand an additional 1/2 turn only.

4. After the new filter has been replaced, the engine oil
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. Then, replenish the engine
oil up to the prescribed level.

(1) Fuel lines
(2) Clamp bands

A If the fuel line is removed, be sure to properly bleed the

fuel system.
(See "Bleeding Fuel System" in "SERVICE AS
REQUIRED" in "PERIODIC SERVICE" section.)

(1) Engine oil filter

A To prevent serious damage to the engine, use only a

KUBOTA genuine filter.

BChecking Radiator Hose and Clamp

Check to see if radiator hoses are properly fixed every 200
hours of operation or six months, whichever comes first.

1. If hose clamps are loose or water leaks, tighten bands
securely.

2. Replace hoses and tighten hose clamps securely, if
radiator hoses are swollen, hardened or cracked.

Replace hoses and hose clamps every 2 years or earlier
if checked and found that hoses are swollen, hardened or
cracked.

PERIODIC SERVICE68

(1) Radiator hoses (4 hoses)
(2) Clamp bands (8 clamps)

C Precaution at Overheating

Take the following actions in the event the coolant
temperature is nearly or more than the boiling point, what
is called "Overheating"

1. Park the tractor in a safe place and keep the engine
unloaded idling.

2. Don't stop the engine suddenly, but stop it after about
5 minutes of unloaded idling.

3. Keep yourself well away from the machine for further
10 minutes or while the steam blows out.

4. Check that there are no dangers such as burns. Get rid
of the causes of overheating according to the manual,
see "TROUBLESHOOTING" section, and then, start
again the engine.

BAdjusting Air-Conditioner Belt Tension

[CAB only]

Push on the belt between the pulleys with a finger. A
deflection of 10 to 12 mm (0.4 to 0.48 in.) under a 10 kgf
(22 lbs.) load is appropriate.

(1) Adjusting bolt
(2) Nut

(A) 10 to 12 mm

BCleaning the Inner Air Filter

[CAB only]

Remove the inner filter, and blow air from the direction
opposite to the filter's normal air flow.

(1) Inner air filter
(2) Screw

69PERIODIC SERVICE

BCleaning the Fresh Air Filter

[CAB only]

Remove the knob bolts and pull out filter.

(1) Fresh air filter
(2) Cover
(3) Knob bolt

A Attach the filter and cover as illustration above.

C Cleaning the air filter
A Normal use

Blow air from the opposite direction to the filter's
normal air flow.
Pressure of compressed air must be under 205 kPa
(2.1 kgf/cm , 30 psi).

A Do not hit the filter. If the filter becomes deformed, dust

may enter into the air-conditioner, which may cause
damage and malfunction.

(A) Air inlet port

A Do not use gasoline, thinner or similar chemicals to

clean the filter as damage to the filter may occur.

A It may also cause an unpleasant odor in the CAB when

the system is used next.

BChecking the Air conditioner Condenser

[CAB only]

Check air conditioner condenser to be sure it is clean of
debris.

(1) Air conditioner condenser

BChecking Intake Air Line

1. Check to see that hoses and hose clamps are tight and
not damaged.

2. If hoses and clamps are found worn or damaged,
replace or repair them at once.

(A) "AIR CONDITIONER AIRFLOW"

A If the filter is very dirty:

Dip the filter in lukewarm water with mild dish washing
detergent.
Move it up and down as well as left and right to loosen
dirt. Rinse the filter with clean water and let it air-dry.

(1) Hose
(2) Hose clamps

PERIODIC SERVICE70

BAdjusting Toe-in

1. Park tractor on a flat place.

2. Turn steering wheel so front wheels are in the straight
ahead position.

3. Lower the implement, lock the park brake and stop the
engine.

4. Measure distance between tire beads at front of tire,
hub height.

5. Measure distance between tire beads at rear of tire,
hub height.

6. Front distance should be 0 to 10 mm (0 to 3/8 in.) less
than rear distance. If not, adjust tie rod length.

EVERY 300 HOURS

BChanging Transmission Fluid

To avoid personal injury:
A Allow engine to cool down sufficiently, oil can

be hot and can burn.

1. To drain the used oil, remove the drain plug at the
bottom of the transmission case and drain the oil
completely into the oil pan.

2. After draining reinstall the drain plug.

3. Fill with new KUBOTA SUPER UDT fluid up to the
upper notch on the dipstick.
(See "LUBRICANTS" in "MAINTENANCE" section
and "DAILY CHECK" in "PERIODIC SERVICE"
section)

4. After running the engine for a few minutes, stop it and
check the oil level again; add oil to prescribed level.

5. Properly dispose of used oil.

Oil capacity 15 L (4.0 U.S.gals.)

(A) Wheel - to - wheel distance at rear
(B) Wheel - to - wheel distance at front
(C) "FRONT"

C Adjusting procedures

1. Loosen the tie-rod nut.

2. Turn the tie-rod joint to adjust the rod length until the
proper toe-in measurement is obtained.

3. Retighten the tie-rod nut.

(1) Tie-rod nut
(2) Tie-rod joint

(1) Oil inlet
(2) Dipstick

(A) Oil level is acceptable within this range

(1) Drain plug
(2) Drain plug (Both sides)

A If the 3-point hitch can not be raised by setting the

hydraulic control lever to the UP position after long
term storage or when changing the transmission oil,
turn steering wheel to the right and left several times
to bleed air from the system.

A Do not operate the tractor immediately after changing

the transmission fluid.

BReplacing Transmission Oil Filter

To avoid personal injury:
A Be sure to stop the engine before changing the

oil filter cartridge.

A Allow engine to cool down sufficiently, oil can

be hot and can burn.

1. Remove the drain plugs at the bottom of the
transmission case and drain the oil completely into the
oil pan.

2. After draining reinstall the drain plugs.

71PERIODIC SERVICE

(1) Transmission oil filter

4. Put a film of clean transmission oil on the rubber seal
of the new filter.

5. Quickly tighten the filter until it contacts the mounting
surface, then tighten it by hand an additional 1/2 turn
only.

6. After the new filters have been replaced, fill the
transmission oil up to the upper notch on the dipstick.

(1) Drain plug
(2) Drain plug (Both sides)

3. Remove the oil filter

(1) Transmission oil filter

(1) Oil inlet
(2) Dipstick

(A) Oil level is acceptable within this range

7. After running the engine for a few minutes, stop the
engine and check the oil level again, add oil to the
prescribed level.

8. Make sure that the transmission fluid doesn't leak past
the seal on the filter.

A To prevent serious damage to the hydraulic system,

use only a KUBOTA genuine filter.

PERIODIC SERVICE72

BChanging Front Axle Case Oil

1. Park the tractor on a firm, flat and level surface.

2. To drain the used oil, remove the right and left drain
plugs and filling plug at the front axle case and drain
the oil completely into the oil pan.

3. After draining, reinstall the drain plugs.

4. Fill with new oil up to the upper notch on the dipstick.
(See "LUBRICANTS" in "MAINTENANCE" section.)

A After ten minutes, check the oil level again; add oil to

prescribed level.

5. After filling, reinstall the filling plug.

6. Properly dispose of used oil.

Oil capacity 4.7 L (5.0 U.S.qts.)

EVERY 400 HOURS

BAdjusting Front Axle Pivot [4WD]

If the front axle pivot pin adjustment is not correct, front
wheel vibration can occur causing vibration in the steering
wheel.

C Adjusting procedure

Loosen the lock nut, and tighten the adjusting screw so
that the oscillating load is 50 to 100 N (5.1 to 10.2 kgf, 11.2
to 22.5 lbf). (If the adjusting screw is tightened, loosened
and retightened, apply liquid gasket to its tip.) Retighten
the lock nut.
Consult your local KUBOTA Dealer for further details.

(1) Filling plug with dipstick
(2) Drain plug

(A) Oil level is acceptable
within this range

(1) Adjusting screw
(2) Lock nut

BReplacing Fuel Filter Element

(See "Cleaning Fuel Filter" in "EVERY 100 HOURS" in
"PERIODIC SERVICE" section.)

EVERY 800 HOURS

BAdjusting Engine Valve Clearance

Consult your local KUBOTA Dealer for this service.

EVERY 1500 HOURS

BChecking Fuel Injection Nozzle Injection

Pressure

Consult your local KUBOTA Dealer for this service.

EVERY 3000 HOURS

BChecking Injection Pump

Consult your local KUBOTA Dealer for this service.

EVERY 1 YEAR

BReplacing Air Cleaner Primary Element

and Secondary Element

(See "Cleaning Air Cleaner Primary Element" in "EVERY
100 HOURS" in "PERIODIC SERVICE" section.)

A To prevent serious damage to the engine, use only a

KUBOTA genuine filter.

BChecking the Air Conditioner Pipe and

Hose

[CAB only]

1. Check to see that all lines and hose clamps are tight
and not damaged.

2. If hoses and clamps are found worn or damaged,
consult your local KUBOTA Dealer for this service.

BChecking the CAB Isolation Cushion

Check the cushion for any breakage or fatigue. Replace
them if they have deteriorated.

Model

B2630

B3030

B3000 5.2 L (5.5 U.S.qts.)

(1) Radiator cap
(2) Drain cock

Coolant capacity

(with recovery tank)

4.5 L (4.7 U.S.qts.)

73PERIODIC SERVICE

EVERY 2 YEARS

BFlushing Cooling System and Changing

Coolant

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

hot. When cool, slowly rotate cap to the first
stop and allow sufficient time for excess
pressure to escape before removing the cap
completely.

1. Stop the engine, remove the key and let it cool down.

2. To drain the coolant, open the radiator drain cock, and
remove radiator cap. The radiator cap must be
removed to completely drain the coolant.

3. After all coolant is drained, close the drain cock.

4. Fill with clean soft water and cooling system cleaner.

5. Follow directions of the cleaner instruction.

6. After flushing, fill with clean soft water and anti-freeze
until the coolant level is just below the radiator cap.
Install the radiator cap securely.

7. Fill with coolant up to the "FULL" mark of recovery
tank.

8. Start and operate the engine for few minutes.

9. Stop the engine, remove the key and let cool.

10.Check coolant level of recovery tank and add coolant
if necessary.

11.Properly dispose of used coolant.

(1) Radiator cap
(2) Recovery tank

A Do not start engine without coolant.
A Use clean, fresh soft water and anti-freeze to fill the

radiator and recovery tank.

A When mixing the anti-freeze with water, the anti-freeze

mixing ratio is 50 %.

A Securely tighten radiator cap. If the cap is loose or

improperly fitted, water may leak out and the engine
could overheat.

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

PERIODIC SERVICE74

BAnti-Freeze

D At 1.013 x 10 Pa (760mmHg) pressure (atmospheric).

A higher boiling point is obtained by using a radiator
pressure cap which permits the development of
pressure within the cooling system.

To avoid personal injury:
A When using antifreeze, put on some protection

such as rubber gloves (Antifreeze contains
poison.).

A If should drink antifreeze, throw up at once and

take medical attention.

A When antifreeze comes in contact with the skin

or clothing, wash it off immediately.

A Do not mix different types of Antifreeze.

The mixture can produce chemical reaction
causing harmful substances.

A Antifreeze is extremely flammable and

explosive under certain conditions. Keep fire
and children away from antifreeze.

A When draining fluids from the engine, place

some container underneath the engine body.

A Do not pour waste onto the grounds, down a

drain, or into any water source.

A Also, observe the relevant environmental

protection regulations when disposing of
antifreeze.

If it freezes, coolant can damage the cylinders and
radiator. If the ambient temperature falls below 0
(32 ) or before a long-term storage, let out cooling water
completely, or mix fresh water with long-life coolant and fill
the radiator and recovery tank with the mixture.

1. Long-life coolant (hereafter LLC) comes in several
types. Use ethylene glycol (EG) type for this engine.

2. Before employing LLC-mixed cooling water, fill the
radiator with fresh water and empty it again.
Repeat this procedure 2 or 3 times to clean up the
inside.

3. Mixing the LLC
Put the LLC in cooling water in the percentage (%) for
a target temperature. When mixing, stir it up well, and
then fill into the radiator.

4. The procedure for the mixing of water and antifreeze
differs according to the make of the antifreeze and the
ambient temperature. Refer to SAE J1034 standard,
more specifically also to SAE J814c.

A When the antifreeze is mixed with water, the

antifreeze mixing ratio must be less than 50%.

Vol %

Anti-freeze

Freezing Point Boiling Point*

5. Adding the LLC
(1) Add only water if the mixture reduces in amount

by evaporation.

(2) If there is a mixture leak, add the LLC of the same

manufacturer and type in the same mixture
percentage.
D 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.)

6. When the LLC is mixed, do not employ any radiator
cleaning agent. The LLC contains anticorrosive agent.
If mixed with the cleaning agent, sludge may build up,
adversely affecting the engine parts.

7. Kubota's genuine long-life coolant has a service life of
2 years. Be sure to change the coolant every 2 years.

A The above data represent industry standards that

necessitate a minimum glycol content in the
concentrated antifreeze.

A When the coolant level drops due to evaporation, add

water only to keep the antifreeze mixing ratio less than
50%. In case of leakage, add antifreeze and water in
the specified mixing ratio before filling in to the
radiator.

BReplacing Radiator Hose (Water pipes)

Replace the hoses and clamps.
(See "Checking Radiator Hose and Clamp" in "EVERY
200 HOURS" in "PERIODIC SERVICE" section.)

BReplacing Fuel Hose

Consult your local KUBOTA Dealer for this service.

BReplacing Intake Air Line

Consult your local KUBOTA Dealer for this service.

BReplacing the Air Conditioner Hose

[CAB only]

40
50

-24

-37

-12

-34

106
108

222
226

SERVICE AS REQUIRED

BBleeding Fuel System

Air must be removed:

1. When the fuel filter or lines are removed.

2. When the tank is completely empty.

3. After the tractor has not been used for a long period of
time.

C Bleeding procedure is as follows:

1. Fill the fuel tank with fuel.

2. Start the engine and run for about 30 seconds, and
then stop the engine.

BDraining Clutch Housing Water

The tractor is equipped with a drain plug under the clutch
housing.
After operating in rain, snow or tractor has been washed,
water may get into the clutch housing.
Remove the drain plug and drain the water, then install the
plug again.

75PERIODIC SERVICE

(1) Water drain plug

BReplacing Fuse

The tractor electrical system is protected from potential
damage by fuses.
A blown fuse indicates that there is an overload or short
somewhere in the electrical system.
If any of the fuses should blow, replace with a new one of
the same capacity.

A Before replacing a blown fuse, determine why the fuse

blew and make any necessary repairs. Failure to
follow this procedure may result in serious damage to
the tractor electrical system. Refer to the
"TROUBLESHOOTING" section of this manual or your
local KUBOTA Dealer for specific information dealing
with electrical problems.

PERIODIC SERVICE76

C Protected circuit

FUSE

No.

(1) 5 OPC

(2) 10 15

(3) 20 Work light

(4) 20 15 Flasher / Hazard

(5) 30 Key stop

(6) 10

(7) 20 Wiper radio ---

(8) 25 Aircon blower ---

(9) 10 Horn ---

(10) 20 Auxiliary

CAPACITY

(A)

ROPS CAB

Protected circuit ROPS CAB

Head light
instrument cluster

Aircon
compressor

---

---

BLubricating Points

[CAB only]

(1) Door hinge
(2) Rear window hinge

(11)

(12) Slow blow fuse

20 Defogger

Check circuit
against wrong
battery connection

---

BReplacing Light Bulb

1. Head light
Take the bulb out of the light body and replace with a
new one.

2. Other lights
Detach the lens and replace the bulb.

Light

Head light 23W

Tail light 8W

Turn signal / Hazard light 27W and 20W

Instrument panel light 1.7W

Hazard light switch indicator 0.6W

Work light --- 35W

Tail light / Brake light
(if equipped)

Capacity

ROPS CAB

5W / 21W

BAdding the Washer Liquid

[CAB only]

Add a proper amount of automobile washer liquid.
(Tank capacity: 1.5 liters (0.40 U.S.gals.) )

(1) Washer liquid tank

BChecking the Amount of Refrigerant (gas)

[CAB only]

To avoid personal injury:
A Liquid contact with eyes or skin may cause

frostbite.

A In the event of a leakage, wear safety goggles.

Escaping refrigerant can cause severe injuries
to eyes.

A In contact with a flame, R134a refrigerant gives

a toxic gas.

A Do not disconnect any part of the refrigeration

circuit of the air conditioning system. Consult
your local KUBOTA Dealer for assistance and
service.

A shortage of refrigerant impairs the air-conditioner
performance. Check the following points. If it is indicated
that the amount of refrigerant is extremely low, ask your
dealer to inspect and charge.

C Checking procedure

1. Run the air-conditioner in the following conditions.

A Engine speed: About 1500 rpm
A Temperature control lever: Maximum cooling

position (leftmost)

A Fan switch: Highest blow (HI)
A Air-conditioner switch: ON

2. Look into the sight glass to see if the refrigerant is
flowing through its circuit.

77PERIODIC SERVICE

(1) Sight glass

A Charge only with R134a not R12 refrigerant (gas).

78 STORAGE

STORAGE

To avoid personal injury:
A Do not clean the machine while the engine is

running.

A To avoid the danger of exhaust fume

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

A When storing, remove the key from the key

switch to avoid unauthorized persons from
operating the tractor and getting injured.

TRACTOR STORAGE

If you intend to store your tractor for an extended period
of time, follow the procedures outlined below. 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 if
necessary.

2. Apply grease to tractor areas where bare metal will
rust also 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 "Battery" in "EVERY 100 HOURS" in "PERIODIC
SERVICE" section.)

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 ground.
Keep the tires out of direct sunlight and extreme heat.

REMOVING THE TRACTOR FROM
STORAGE

1. Check the tire air pressure 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. Install the battery. Before installing the battery, be sure
it is fully charged.

4. Check the fan belt tension.

5. Check all fluid levels (engine oil, transmission/
hydraulic oil, engine coolant and any attached
implements).

6. Start the engine. Observe 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. Shut the
engine off and walk around tractor and make a visual
inspection looking for evidence of oil or water leaks.

7. With the engine fully warmed up, release the parking
brake and test the brakes for proper adjustment as you
move forward. Adjust the brakes as necessary.

A When washing the tractor, be sure to stop the engine.

Allow sufficient time for the engine to cool before
washing.

A Cover the tractor after the muffler and the engine have

cooled down.

TROUBLESHOOTING

ENGINE TROUBLESHOOTING

If something is wrong with the engine, refer to the table below for the cause and its corrective measure.

Trouble Cause Countermeasure

A No fuel flow. A Check the fuel tank and the fuel filter.

Replace filter if necessary.

A Air or water is in the fuel system. A Check to see if the fuel line coupler bolt and

nut are tight.

A Bleed the fuel system

(See "Bleeding Fuel System" in "SERVICE AS
REQUIRED" in "PERIODIC SERVICE"

Engine is difficult to start or
won't start.

A In winter, oil viscosity increases,

and engine revolution is slow.

section.)

A Use oils of different viscosities, depending on

ambient temperatures.

A Use engine block heater. (Option)

79TROUBLESHOOTING

Insufficient engine power.

Engine stops suddenly.

Black

Exhaust fumes are
colored.

Blue
white

Engine overheats

A Battery becomes weak and the

engine does not turn over quick
enough.

A Insufficient or dirty fuel.
A The air cleaner is clogged.

A Insufficient fuel. A Refuel.

A Fuel quality is poor.
A Too much oil.
A The air cleaner is clogged.

A The inside of exhaust muffler is

dumped with fuel.

A Injection nozzle trouble.
A Fuel quality is poor.

A Engine overloaded A Shift to lower gear or reduce load.

A Low coolant level A Fill cooling system to the correct level;

A Loose or defective fan belt A Adjust or replace fan belt.

A Clean battery cables & terminals.
A Charge the battery.
A In cold weather, always remove the battery

from the engine, charge and store it indoors.
Install it on the tractor only when the tractor is
going to be used.

A Check the fuel system.
A Clean or replace the element.

A Bleed the fuel system if necessary.

A Change the fuel and fuel filter.
A Check the proper amount of oil.
A Clean or replace the element.

A Heat the muffler by applying load to the

engine.

A Check the injection nozzle.
A Change the fuel and fuel filter.

check radiator and hoses for loose
connections or leaks.

A Dirty radiator core or grille screens A Remove all trash.

A Coolant flow route corroded A Flush cooling system.

If you have any questions, consult your local KUBOTA Dealer.

80 OPTIONS

OPTIONS

Consult your local KUBOTA Dealer for further detail.

A Rear Work Light

High visibility for night work

A Engine Block Heater

For extremely cold weather starting

A Front end weights

For front ballast

A Mounting Kit (Front end weights)

To mount Front end weights

A CD Radio Mount Kit