Kubota L3301, L3901 Operators Manual

OPERATOR'S MANUAL

U.S.A. :KUBOTATRACTORCORPORATION

WesternDivision :

CentralDivision :

NorthernDivision :

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3401

DelAmoBlvd.,Torrance,CA

Telephone:(

Telephone :(

Telephone :(

Telephone :(

Telephone :(

590014
Telephone:(

19-25
Telephone:(

ViaGrandi,
Telephone:(

SenefelderStr.
Telephone:(

DormerRoad,Thame,Oxfordshire,OX
Telephone:(

AvenidaRecombaNo.
Telephone:(

25-29
Telephone:(

No.

3

JalanSepadu25/
Seksyen
Telephone:(

155

PanayAvenue,SouthTrian㷅leHomes,

Telephone:(

16

,Fen㷅pin㷅2ndRd,TaliaoShian㷅Kaohsiun㷅

Telephone:(

TowerAatEi㷅htyEi㷅ht@KasablankaLantai
JalanRayaCasablankaKav.88,Jakarta
Telephone:(

101/19-24
Pathumthani
Telephone:(

106-24
Telephone:(

Re㷅us,Level
Telephone:(

LotB­Telephone:(

310)370-3370

1175

S.GuildAvc.,Lodi,CA

209)334-9910

14855

FAABlvd.,FortWorth,TX

817)571-0900

6300

atOneKubotaWay,Groveport,OH

614)835-1100

1025

NorthbrookParkway,Suwanee,GA

770)995-8855

thAvenue,Markham,Ontario,L3S4K4,Canada

905)294-7477

,RueJulesVercruysse,Z.I.BP88,

33)1-3426-3434

2920068

PermasWay,Tru㷅anina,VIC

25,40400

Moo20,NavanakornIndustrialEstate,TambonKhlon㷅nuen㷅,AmphurKhlon㷅luan㷅,

Mon㷅san-Ri,Mankyun㷅-Up,Kimje-City,Chonrapuk-Do,KOREA

3A2

-CN,MyPhuoc3IndustrialPark,BenCatDistrict,BinhDuon㷅Province,Vietnam

PeschieraBorrome(MI)Italy

39)02-51650377

3-563110

49)6106-873-0

44)1844-214500

34)91-508-6442

61)-3-9394-4400

60)3-736-1388

63)2-9201071

886)7-702-2333

62)-21-29568-720

12120

66)2-909-0300

82)-63-544-5822

2

Altius,OlympiaTechPark,No.1SIDCOIndustrialEstate,Guindy,Chennai

91)-44-4299-4237

84)-650-3577-507

Rod㷅au/Nieder-Roden,Germany

5

,Poli㷅noIndustriallaLa㷅una,Le㷅anes,

123

TamanPerindustrianAxis,

ShahAlam,Selan㷅orDarulEhsanMalaysia

,THAILAND

90503

3029

KUBOTACorporation

AS. A. 3-3. -. K

,U.S.A.

95240

76155

43125

30024

95101

Ar㷅enteuilCedex,France

93

UN,U.K.

,Australia

1103

QuezonCity,Philippines

83107

,TaiwanR.O.C.

16

12870

Indonesia

28914

(Madrid)Spain

600032

,TN,India

English (U.S.A.)
Code No. TC620-1971-1

MODELS

L3301
L3901

L
3
3
0
1

·
L
3
9
0
1

1AGAPCAAP0010

PRINTED IN U.S.A.

KUBOTA Corporation 2013

©

READ AND SAVE THIS MANUAL

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

Diesel Preheat/Glow Plugs
(Low Temperature Start Aid)

Brake System

Clutch

Parking Brake

Engine Intake/Combustion Air-Filter

Battery Charging Condition

Engine Oil-Pressure

Turn Signal

Engine-Stop

Engine-Run

Starter Control

3-Point Lowering Speed Control

Remote Cylinder-Retract

Remote Cylinder-Extend

Steering Wheel-Tilt Control

Hazard Warning Lights

Master Lighting Switch

Position Lamps

Headlight-Low Beam

Headlight-High Beam

Audible Warning Device

4-Wheel Drive-On

4-Wheel Drive-Off

Fast

Slow

Creep

Read Operator's Manual

Tractor-Forward Movement-Overhead View of
Machine

Power Take-Off Control-Off Position

Power Take-Off Control-On Position

Differential Lock

Position Control-Raised Position

Position Control-Lowered Position

Engine Warning

Emission Control

Draft Control-Shallow Position

Draft Control-Deep Position

Tractor-Rearward Movement-Overhead View
of Machine

Engine Speed Control

Regeneration

DPF INHIBIT (Switch)

Parked Regeneration (Switch)

Parked Regeneration

Engine RPM Increase

CONTENTS

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

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

SPECIFICATIONS....................................................................................................... 3

SPECIFICATION TABLE ......................................................................................... 3

TRAVELING SPEEDS ............................................................................................. 5

IMPLEMENT LIMITATIONS ........................................................................................ 6

INSTRUMENT PANEL AND CONTROLS................................................................... 8

PRE-OPERATION CHECK ....................................................................................... 12

DAILY CHECK ....................................................................................................... 12

OPERATING THE ENGINE....................................................................................... 13

EXHAUST AFTERTREATMENT DEVICES........................................................... 13

Diesel Particulate Filter (DPF) Muffler ............................................................................ 13

Handling Points............................................................................................................... 14

DPF Regeneration Process ............................................................................................ 14

Regeneration Operating Procedure................................................................................15

PM Warning Level and Required Procedures ................................................................ 16

Regeneration Operating Procedure................................................................................17

PM Warning Level and Required Procedures ................................................................ 18

Tips on Diesel Particulate Filter (DPF) Regeneration..................................................... 20

STARTING THE ENGINE...................................................................................... 20

COLD WEATHER STARTING ............................................................................... 24

Block Heater (if equipped) ..............................................................................................24

STOPPING THE ENGINE...................................................................................... 24

WARMING UP ....................................................................................................... 24

Warm-Up Transmission Oil in the Low Temperature Range .......................................... 24

JUMP STARTING .................................................................................................. 25

OPERATING THE TRACTOR ................................................................................... 26

OPERATING NEW TRACTOR .............................................................................. 26

Do not Operate the Tractor at Full Speed for the First 50 Hours....................................26

Changing Lubricating Oil for New Tractors.....................................................................26

BOARDING AND LEAVING THE TRACTOR ........................................................ 26

OPERATING FOLDABLE ROPS (if equipped)...................................................... 26

To Fold the ROPS .......................................................................................................... 26

To Raise the ROPS to Upright Position.......................................................................... 27

Adjustment of Foldable ROPS........................................................................................28

STARTING............................................................................................................. 28

Operator's Seat...............................................................................................................28

Seat Belt ......................................................................................................................... 29

Head Light / Turn Signal / Hazard Light Switch..............................................................29

Tractor Lights..................................................................................................................30

Brake Pedals (Right and Left)......................................................................................... 31

Clutch Pedal ...................................................................................................................32

Clutch Pedal [with Dual Clutch] ......................................................................................32

CONTENTS

Main Gear Shift Lever & Range Gear Shift Lever...........................................................33

Synchro-Shuttle Shift Lever ............................................................................................ 33

Front Wheel Drive Lever................................................................................................. 34

Hand Throttle Lever........................................................................................................34

Foot Throttle ...................................................................................................................34

Parking Brake ................................................................................................................. 35

Range Gear Shift Lever (L-M-H).....................................................................................36

Front Wheel Drive Lever................................................................................................. 37

Hand Throttle Lever........................................................................................................37

Parking Brake ................................................................................................................. 37

Speed Control Pedal.......................................................................................................38

Cruise Control Lever....................................................................................................... 38

STOPPING............................................................................................................. 40

Stopping..........................................................................................................................40

CHECK DURING DRIVING ................................................................................... 40

Immediately Stop the Engine if: ......................................................................................40

Easy Checker(TM).......................................................................................................... 40

Fuel Gauge ..................................................................................................................... 41

Coolant Temperature Gauge.......................................................................................... 41

Hourmeter/Tachometer................................................................................................... 41

PARKING............................................................................................................... 42

Parking............................................................................................................................ 42

OPERATING TECHNIQUES ................................................................................. 42

Differential Lock .............................................................................................................. 42

Operating the Tractor on a Road .................................................................................... 43

Operating on Slopes and Rough Terrain........................................................................43

Transport the Tractor Safely ........................................................................................... 43

Directions for Use of Power Steering.............................................................................. 43

PTO ........................................................................................................................... 44

PTO OPERATION.................................................................................................. 44

PTO Gear Shift Lever ..................................................................................................... 44

Stationary PTO ...............................................................................................................45

Live PTO Operation ........................................................................................................ 45

PTO Shaft Cover and Shaft Cap .................................................................................... 45

3-POINT HITCH & DRAWBAR.................................................................................. 46

3-POINT HITCH..................................................................................................... 47

Selecting the holes of Lower Links ................................................................................. 47

Selecting the top link mounting holes ............................................................................. 47

Drawbar ..........................................................................................................................47

Lifting Rod (Right)........................................................................................................... 47

Top Link ..........................................................................................................................47

Check Chains ................................................................................................................. 48

Lower link holder............................................................................................................. 48

DRAWBAR............................................................................................................. 48

Adjusting Drawbar Length ..............................................................................................48

HYDRAULIC UNIT..................................................................................................... 49

3-POINT HITCH CONTROL SYSTEM................................................................... 49

Position Control .............................................................................................................. 49

Float Control ...................................................................................................................49

3-point Hitch Lowering Speed.........................................................................................49

CONTENTS

AUXILIARY HYDRAULICS .................................................................................... 50

Hydraulic Block Type Outlet ........................................................................................... 50

Hydraulic Control Unit Use Reference Chart .................................................................. 51

TIRES, WHEELS AND BALLAST.............................................................................. 52

TIRES..................................................................................................................... 52

Inflation Pressure............................................................................................................ 52

Dual Tires ....................................................................................................................... 52

WHEEL ADJUSTMENT ......................................................................................... 52

Front Wheels .................................................................................................................. 52

Rear Wheels...................................................................................................................53

BALLAST ............................................................................................................... 54

Front Ballast.................................................................................................................... 54

Rear Ballast ....................................................................................................................55

Liquid Ballast in Rear Tires............................................................................................. 55

MAINTENANCE......................................................................................................... 56

SERVICE INTERVALS .......................................................................................... 56

LUBRICANTS, FUEL AND COOLANT .................................................................. 59

PERIODIC SERVICE................................................................................................. 61

HOW TO OPEN THE HOOD ................................................................................. 61

Hood ............................................................................................................................... 61

Side Cover ......................................................................................................................61

DAILY CHECK ....................................................................................................... 62

Walk Around Inspection..................................................................................................62

Checking and Refueling..................................................................................................62

Checking Water Separator ............................................................................................. 62

Checking Engine Oil Level.............................................................................................. 63

Checking Transmission Fluid Level ................................................................................ 63

Checking Coolant Level.................................................................................................. 64

Cleaning Evacuator Valve ..............................................................................................64

Cleaning Grill and Radiator Screen ................................................................................65

Checking DPF Muffler..................................................................................................... 65

Checking Brake Pedals and Clutch Pedal......................................................................66

Checking Gauges, Meter and Easy Checker(TM)..........................................................66

Checking Head Light, Turn Signal / Hazard Light etc.....................................................66

Checking Seat Belt and ROPS.......................................................................................66

Checking and Cleaning of Electrical Wiring and Battery Cables ....................................66

Checking Movable Parts ................................................................................................. 66

EVERY 50 HOURS................................................................................................ 67

Lubricating Grease Fittings.............................................................................................67

Checking Engine Start System ....................................................................................... 68

Checking Operator Presence Control ............................................................................. 69

Checking Wheel Bolt Torque .......................................................................................... 70

EVERY 100 HOURS.............................................................................................. 70

Cleaning Air Cleaner Element [Single Element Type] ....................................................70

Adjusting Fan Belt Tension............................................................................................. 71

Checking Fuel Line ......................................................................................................... 71

Checking Fuel Grommet ................................................................................................. 71

Adjusting Clutch Pedal....................................................................................................72

Adjusting Brake Pedal .................................................................................................... 73

Checking Battery Condition ............................................................................................ 73

CONTENTS

EVERY 200 HOURS.............................................................................................. 75

Replacing Transmission Oil Filter [HST Type] ................................................................ 75

Checking Radiator Hose and Clamp .............................................................................. 76

Checking Oil Cooler Line................................................................................................ 76

Checking Intake Air Line ................................................................................................. 76

Checking Oil Separator Hose .........................................................................................77

Checking Power Steering Line ....................................................................................... 77

Adjusting Toe-in.............................................................................................................. 77

EVERY 400 HOURS.............................................................................................. 78

Changing Engine Oil.......................................................................................................78

Replacing Engine Oil Filter ............................................................................................. 79

Changing Transmission Fluid / Replacing Hydraulic Oil Filter........................................ 80

Changing Front Axle Case Oil ........................................................................................81

Replacing Fuel Filter....................................................................................................... 82

Cleaning Water Separator ..............................................................................................82

Lubricating Grease Fitting [2WD Model].........................................................................83

EVERY 600 HOURS.............................................................................................. 83

Adjusting Front Axle Pivot............................................................................................... 83

EVERY 800 HOURS.............................................................................................. 83

Adjusting Engine Valve Clearance ................................................................................. 83

EVERY 1500 HOURS............................................................................................ 83

Cleaning Fuel Injector Nozzle Tip...................................................................................83

Replacing Oil Separator Element ...................................................................................83

Checking PCV (Positive Crankcase Ventilation) Valve .................................................. 83

Checking and Cleaning EGR Cooler ..............................................................................83

EVERY 3000 HOURS............................................................................................ 84

Checking Supply Pump ..................................................................................................84

Checking and Cleaning EGR System.............................................................................84

Cleaning DPF Muffler .....................................................................................................84

EVERY 1 YEAR ..................................................................................................... 84

Replacing Air Cleaner Element.......................................................................................84

Checking Exhaust Manifold ............................................................................................84

Checking DPF Differential Pressure Sensor Pipe ..........................................................84

Checking EGR Pipe........................................................................................................ 84

EVERY 2 YEARS................................................................................................... 84

Flushing Cooling System and Changing Coolant ...........................................................84

Anti-Freeze .....................................................................................................................85

Replacing Radiator Hose (Water pipes) ......................................................................... 86

Replacing Power Steering Hose..................................................................................... 86

Replacing Fuel Hose ...................................................................................................... 86

Replacing Fuel Grommet................................................................................................ 86

Replacing Oil Cooler Line ............................................................................................... 86

Replacing Intake Air Line................................................................................................ 86

Replacing Oil Separator Hose ........................................................................................86

Replacing DPF Differential Pressure Sensor Hose ........................................................ 86

SERVICE AS REQUIRED...................................................................................... 86

Bleeding Fuel System.....................................................................................................86

Draining Clutch Housing Water ...................................................................................... 87

Replacing Fuse...............................................................................................................87

Replacing Slow-Blow Fuses ........................................................................................... 88

Replacing Light Bulb....................................................................................................... 88

Replacing Head Lamp .................................................................................................... 88

CONTENTS

STORAGE ................................................................................................................. 89

TRACTOR STORAGE ........................................................................................... 89

REMOVING THE TRACTOR FROM STORAGE................................................... 89

TROUBLESHOOTING............................................................................................... 90

ENGINE TROUBLESHOOTING ............................................................................ 90

POWER TRAIN TROUBLE SHOOTING................................................................ 91

OPTIONS................................................................................................................... 92

APPENDICES............................................................................................................ 93

INDEX .................................................................................................................... 93

SAFE OPERATION

-1SAFE 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. Do not operate the tractor or any implement attached
to it while under the influence of alcohol, medication,
controlled substances or while fatigued.

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

5. 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.

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

7. Check brakes, clutch, linkage pins and other
mechanical parts for improper adjustment and wear.
Replace worn or damaged parts promptly. Check the
tightness of all nuts and bolts regularly. (For further
details, see "MAINTENANCE" section.)

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

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

10.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.

11. The narrower the tread, the greater the risk of a tractor
upset. For maximum stability, adjust the wheels to the
widest practical tread width for your application. (See
"TIRES, WHEELS AND BALLAST" section.)

(1) Rear wheels (A) Tread Width

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

C CAB, ROPS

1. 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.
Check for overhead clearance which may interfere
with a CAB or ROPS.

2. Set parking brake and stop engine. Remove any
obstruction that may prevent raising or folding of the
ROPS. Do not allow any bystanders. Always perform
function from a stable position at the rear of the tractor.
Hold the top of the ROPS securely when raising or
folding. Make sure all pins are installed and locked.

3. If the CAB or ROPS is loosened or removed for any
reason, make sure that all parts are reinstalled
correctly before operating the tractor.

4. Never modify or repair any structural member of a
CAB or ROPS because welding, bending, drilling,
grinding, or cutting may weaken the structure.

5. A damaged CAB or ROPS structure must be replaced,
not repaired or revised.

6. If any structural member of the CAB or ROPS is
damaged, replace the entire structure at your local
KUBOTA Dealer.

SAFE OPERATION-2

7. 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.)

8. 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.

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) ROPS
(2) Seat belt

2. OPERATING THE TRACTOR

Operator safety is a priority. Safe operation, specifically
with respect to overturning hazards, entails understanding
the equipment and environmental conditions at the time of
use. Some prohibited uses which can affect overturning
hazards include traveling and turning with implements
and loads carried too high etc. This manual sets forth
some of the obvious risks, but the list is not, and cannot
be, exhaustive. It is the operator's responsibility to be alert
for any equipment or environmental condition that could
compromise safe operation.

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
both the clutch and the Power Take-Off (PTO) are
disengaged or "OFF".
Fasten the seat belt if the tractor has a CAB or a
foldable ROPS in the upright and locked position.

(1) Drawbar

2. For trailing PTO-driven implements, set the drawbar to
the towing position.

3. Attach pulled or towed loads to the drawbar only.

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

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

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

7. 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.

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

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

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

11.Always sit in the operator's seat when operating levers
or controls.

12.Do not stand between tractor and implement or trailed
vehicle unless parking brake is applied.

-3SAFE OPERATION

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.

C Operating on slopes

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

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

5. Special attention should be made to the weight and
location of implements and loads as such will affect the
stability of the tractor.

6. To improve stability on slope, set widest wheel tread
as shown in "TIRES, WHEELS AND BALLAST"
section.
Follow recommendations for proper ballasting.

[Manual Transmission Type]

[HST Type]

(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 2 and 4-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.

C Driving the tractor on the road

1. Lock the 2 brake pedals together to help assure
straight-line stops. Uneven braking at road speeds
could cause the tractor to tip over.

SAFE OPERATION-4

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

(1) SMV emblem
(2) Bracket

5. Observe all local traffic and safety regulations.

6. Turn the headlights on. Dim them when meeting
another vehicle.

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.Keep the ROPS in the "UP" position and wear the seat
belt when driving the tractor on the road.
Otherwise, you will not be protected in the event of a
tractor roll-over.

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

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

13.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"

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,
remove the key from the ignition and lock the cab door
(if equipped).

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.

(1) Safety chain

-5SAFE OPERATION

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

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.

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

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.

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. 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.)

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

4. 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.

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

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

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.

SAFE OPERATION-6

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

(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.

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

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.

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.

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

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

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

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

17.Do not open high-pressure fuel system.
High-pressure fluid remaining in fuel lines can cause
serious injury. Do not disconnect nor attempt to repair
fuel lines, sensors, or any other components between
the high-pressure fuel pump and injectors on engines
with high pressure common rail fuel system.

18.To avoid hazardous high voltage, turn the key switch
to the OFF position if it is necessary to check to repair
the computer, harness or connectors.

19.During Diesel Particulate Filter (hereinafter called
DPF) regenerating operations, exhaust gases and
exhaust filter components reach temperatures hot
enough to burn people, or ignite or melt common
materials.

20.Keep the tractor away from people, animals or
structures which may be susceptible to harm or
damage from hot exhaust gases.

21.To prevent fires, keep the DPF muffler and its
surroundings clear of anything flammable and keep
clean at all times.

22.During regeneration, white exhaust gas may be
visible. Do not allow regeneration in a non-ventilated
space.

23.During regeneration, do not leave the tractor.

-7SAFE OPERATION

SAFE OPERATION-8

7. DANGER, WARNING AND CAUTION LABELS

-9SAFE OPERATION

SAFE OPERATION-10

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/ROPS and engine serial numbers.
Locate the serial numbers now and record them in the
space provided.

Type Serial No.

1SERVICING OF TRACTOR

Tractor

CAB / ROPS

Engine

Date of Purchase

Name of Dealer

(To be filled in by purchaser)

C Warranty

This tractor is warranted under the KUBOTA Limited
Express Warranty, a copy of which may be obtained from
your selling dealer. No warranty shall, however, apply if
the tractor has not been handled according to the
instruction given in the Operator's Manual even it is within
the warranty period.

C Scrapping the tractor and its procedure

To put the tractor out of service, correctly follow the local
rules and regulations of the country or territory where you
scrap it. If you have questions, consult your local
KUBOTA Dealer.

(1) Tractor identification plate

(1) Tractor serial number
(2) Engine serial number

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

SERVICING OF TRACTOR2

(1) Diesel particulate Filter (DPF) serial number

SPECIFICATIONS

SPECIFICATION TABLE

3SPECIFICATIONS

Model

PTO power* kW (HP) 20.7 (27.7) 19.5 (26.2) 23.9 (32.1) 22.8 (30.6)

Model D1803-CR-E4

Type Direct injection, Vertical, Water-Cooled 4 cycle diesel

Number of cylinders 3

Bore and stroke mm (in) 87 x 102.4 (3.4 x 4.0)

Total displacement L (cu.in.) 1.826 (111.4)

Engine

Capacities

Dimensions

Weight (with ROPS) kg (lbs.)

Traveling
system

Engine gross power* kW (HP) 24.6 (33.0) 28.0 (37.5)

Engine net power* kW (HP) 23.4 (31.4) 27.1 (36.3)

Rated revolution rps (rpm) 45.0 (2700)

Low idling revolution rps (rpm) 15.0 (900)

Maximum torque

Battery [75D23R]12V. RC : 110 min, CCA : 580 A

Fuel tank

Engine crankcase
(with filter)

Engine coolant

Transmission case

Overall length
(without 3p)

Overall width
(min.tread)

Overall height
(with ROPS)

Overall height
(Top of steering wheel)

Wheel base mm (in.) 1610 (63.3)

Min. ground clearance mm (in.) 345 (13.6) 340 (13.4) 345 (13.6) 340 (13.4)

Tread

Tires

Indust.
(option)

Clutch Dry type Single stage Dry type Dual stage

Steering Integral type power steering

Transmission

Brake Wet disk type

Min. turning radius
(with brake)

Front mm (in.) 1050 (41.3) 1095 (43.1) 1050 (41.3) 1095 (43.1)

Rear mm (in.) 1115 (43.8), 1195 (47.1), 1290 (50.8)

AG Front

AG Rear 11.2 - 24

Front N / A 27 x 8.50 - 15 N / A 27 x 8.50 - 15

Rear N / A 15 - 19.5R4 N / A 15 - 19.5R4

N-m

(ft-lbs.)

L

(U.S.gals.)

L

(U.S.qts.)

L

(U.S.qts.)

L

(U.S.gals.)

mm (in.) 2810 (110.6) 2740 (107.9) 2810 (110.6) 2740 (107.9)

mm (in.) 1400 (55.1)

mm (in.) 2330 (91.7)

mm (in.) 1475 (58.1)

m (feet) 2.4 (7.9) 2.5 (8.2) 2.4 (7.9) 2.5 (8.2)

Manual Transmission HST Manual Transmission HST

2WD 4WD 4WD 2WD 4WD 4WD

28.0 (7.4) 28.5 (7.5) 23.5 (6.2) 28.0 (7.4) 28.5 (7.5) 23.5 (6.2)

1160

(2557)

5.00 - 15

7.5 - 15

Gear shift,

8 forward

and 8 reverse

L3301 L3901

101.7 (75.0) 115.8 (85.4)

42.0 (11.0)

6.7 (7.1)

6.0 (6.3)

1240

(2734)

7 - 16

Hydrostatic

transmission,

3 range speed

1260

(2778)

1175

(2590)

5.00 - 15

7.5 - 15

and 8 reverse

1255

(2767)

Gear shift,

8 forward

1260

(2778)

7 - 16

Dry type

Single stage

Hydrostatic

transmission,

3 range speed

4 SPECIFICATIONS

L3301 L3901

23.9 (6.3)

14.5 (3.8)

16.2 (165) [2349]

Live-continuous running

Hydraulic
unit

PTO

Model

Hydraulic control system Position control

Pump capacity
(main)

Pump capacity
(PS)

3 point hitch Category 1

Max.
lift
force

System pressure

Rear
PTO

PTO / Engine speed rpm 540 / 2430 540 / 2580 540 / 2425 540 / 2580

At lift points kg (lbs.) 906 (1998)

24 in. behind
lift points

PTO shaft size SAE 1-3 /8, 6-splines

Type

L / min

(gal / min)

L / min

(gal / min)

kg (lbs.) 651 (1435)

MPa

(kgf / cm )

[psi]

Manual Transmission HST Manual Transmission HST

2WD 4WD 4WD 2WD 4WD 4WD

Transmission driven

with overrunning

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

TRAVELING SPEEDS

[Manual Transmission Type] (At rated engine rpm)

Model L3301 / L3901

Tire size (Rear) 11.2-24

5SPECIFICATIONS

Forward

Reverse

Range gear

shift lever

Low

High

Low

High

Main gear shift

lever

11.7 1.1

22.2 1.4

33.8 2.3

45.6 3.5

16.6 4.1

28.5 5.3

3 14.4 8.9

4 21.2 13.2

11.7 1.1

22.2 1.4

33.8 2.3

45.6 3.4

16.5 4.1

28.5 5.3

3 14.3 8.9

km/h mph

4 21.1 13.1

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

[HST Type] (At rated engine rpm)

Model L3301 / L3901

Tire size (Rear) 11.2-24

Range shift lever km/h mph

L6.3 3.9

Forward

Reverse

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

M 10.9 6.8

H 22.7 14.1

L5.6 3.5

M9.9 6.1

H 20.5 12.7

6 IMPLEMENT LIMITATIONS

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

Front

Rear

2WD 4WD

Lower link end max. lifting

capacity W

L3301
L3901

L3301
L3901

Lower link end max. hydraulic lifting capacity ...........W

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

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

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

A Implement size may vary depending on soil operating conditions.
A Strictly follow the instructions outlined in the operator’s manual of the mounted or trailed machinery or trailer, and do

not operate the combination tractor - machine or tractor - trailer unless all instructions have been followed.

A Forestry Application

Following hazards exist;
(a) toppling trees, primarily in case a rear-mounted tree grab-crane is mounted at the rear of the tractor;
(b) penetrating objects in the operator’s enclosure, primarily in case a winch is mounted at the rear of the tractor.
Optional equipments such as OPS (Operator Protective Structure), FOPS (Falling Object Protective Structure), etc. to
deal with these hazards and other related hazards are not available for this tractor. Without such optional equipment
use is limited to tractor specific applications like transport and stationary work.

1050 mm

(41.3 in.)

Implement weight W

and/or size

As in the following list

(Shown on the next page)

1095 mm

(43.1 in.)

1290 mm (50.8 in.) 900 kg (1985 lbs.)

Actual figures

Max. Drawbar Load W

330 kg (730 lbs.) 1000 kg (2200 lbs.)

Trailer loading weight W

Max. capacity

No. Implement Remarks L3301 L3901

7IMPLEMENT LIMITATIONS

1Trailer

Rotary-Cutter

2 Mower

3 Sprayer

4 Rotary Tiller Max. tilling width mm (in.) 1370 (54)

5 Bottom Plow Max. size 12 in. x 2, 16 in. x 1

6 Disk harrow : Pull type

7 Chisel Plow

8 Broad Caster

9 Manure Spreader Max. capacity kg (lbs.) 1000 (2200)

10 Cultivator

11 Front Blade

12 Rear Blade

13 Front-end Loader

14 Box Blade

15 Backhoe

16 Snow Blade

17 Snow Blower

Flail Mower

Sickle Bar

Rear mounted Max. tank capacity L (gals.) 300 (80)

Pull type Max. tank capacity L (gals.) 800 (210)

Max. load capacity kg(lbs.) 1000 (2200)

Max. drawbar load kg (lbs.) 330 (730)

Max. cutting width mm (in.) 1829 (72)

Max. weight kg (lbs.) 350 (770)

Max. cutting width mm (in.) 1270 (50)

Max. weight kg (lbs.) 350 (770)

Max. cutting width mm (in.) 1829 (72)

Max. weight kg (lbs.) 400 (880)

Max. harrowing width mm (in.) 1524 (60)

Max. weight kg (lbs.) 300 (660)

Max. width mm (in.) 1829 (72)

Max. weight kg (lbs.) 350 (770)

Max. tank capacity L (gals.) 200 (53)

Max. weight kg (lbs.) 100 (220)

Max. width mm (in.) 1524 (60)

Number of rows 1

Max. weight kg (lbs.) 250 (550)

Max. cutting width mm (in.) 1829 (72)

Max. oil pressure MPa (psi) 15.9 (2311)

Sub frame Necessary

Max. cutting width mm (in.) 1829 (72)

Max. oil pressure MPa (psi) 15.9 (2311)

Max lifting capacity kg (lbs.) 460 (1014)

Max. oil pressure MPa (psi) 15.9 (2311)

Sub frame Not necessary

Max. cutting width mm (in.) 1321 (52)

Max. weight kg (lbs.) 315 (694)

Max. digging depth mm (in.) 2288 (90)

Max. weight kg (lbs.) 420 (926)

Sub frame Necessary

Max. width mm (in.) 1524 (60)

Max. weight kg (lbs.) 300 (660)

Max. working width mm (in.) 1524 (60)

Max. weight kg (lbs.) 250 (550)

A Implement size may vary depending on soil operating conditions.

8 INSTRUMENT PANEL AND CONTROLS

INSTRUMENT PANEL AND CONTROLS

B Instrument Panel, Switches and Hand Controls

ILLUSTRATED CONTENTS

(1) DPF INHIBIT switch............................. 13

(2) Parked regeneration switch................. 13

(3) Head light switch.................................. 29

(4) Turn signal switch................................ 29

(5) Hazard light switch............................... 29

(6) Key switch............................................ 20

9INSTRUMENT PANEL AND CONTROLS

ILLUSTRATED CONTENTS ILLUSTRATED CONTENTS

(1) Electrical charge warning indicator ................... 40 (9) Parked regeneration indicator .......................... 13

(2) Engine oil pressure warning indicator ............... 40 (10) Engine warning indicator .................................. 40

(3) Glow plug indicator ........................................... 24 (11) Emission indicator ............................................ 40

(4) Parking brake warning indicator ....................... 20 (12) Fuel gauge ....................................................... 41

(5) Turn signal / hazard indicator ........................... 29 (13) Hourmeter ........................................................ 41

(6) Master system warning indicator ...................... 40 (14) Tachometer ......................................................41

(7) Regeneration indicator ..................................... 13 (15) Coolant temperature gauge ............................. 41

(8) Engine RPM increase indicator ........................ 13

10 INSTRUMENT PANEL AND CONTROLS

B Foot and Hand Controls

C Manual Transmission Type

ILLUSTRATED CONTENTS

(1) Parking brake lever.............................. 42

(2) Main gear shift lever............................. 33

(3) Clutch pedal......................................... 32,32

(4) PTO gear shift lever............................. 44

(5) 3-Point hitch lowering speed knob....... 49

(6) Front wheel drive lever [4WD Type]..... 34

(7) Synchro-shuttle shift lever.................... 33

(8) Range gear shift lever.......................... 33

(9) Seat belt............................................... 29

(10) Operator's seat.................................... 28

(11) Hand throttle lever................................ 34

(12) Brake pedal.......................................... 31,35

(13) Foot throttle.......................................... 34

(14) Position control lever............................ 49

(15) Differential lock pedal........................... 42

(16) Cup holder .......................................... -

(17) Tool box ............................................ -