Kubota L3130, L3430, L3830, L4330, L4630 Shop manual

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Page 1

WORKSHOP MANUAL

KiSC issued 06, 2006 A

TRACTOR

L3130,L3430,L3830,

L4330,L4630,L5030

Page 2

TO THE READER

KiSC issued 06, 2006 A

This Workshop Manual has been prepared to provide servicing personnel with information on the me chanism, service and mainte nance of KUBOTA Tractor L3 130, L3430, L3830, L4330, L4 630 and L50 30. It i s d ivid ed i nto two p art s, “Mec han is m” an d “Servicing” for each section.

■ Mechanism

Information on the construction and function are included. This part should be understood before proceeding with troubleshooting, disassembling and servicing.

Refer to Diesel engine / Tr actor Mechanism Workshop Manu al (Code No. 9789701872 / 97897-18200) for the one which has not been described to this workshop manual.

■ Servicing

The heading “Gener al” includes general prec autions, check and ma intenance and special tools. Other section, there are troubleshooting, servicing specification lists, checking and adjusting, disassembling and assembling, and servicing which cover procedures, precautions, factory specifications and allowable limits.

All information illustrations and specifications contained in this manual are based on the latest product information available at the time of publication.

The right is reserved to make changes in all information at any time without notice.

October 2002

Page 3

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

SAFETY FIRST

KiSC issued 06, 2006 A

SAFETY INSTRUCTIONS

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 repair or use

this unit.

DANGER : Indicates an imminently hazardous situation which, if not avoided, will result in

death or serious injury.

WARNING : Indicates a potentially hazardous situation which, if not avoided, could result in

death or serious injury.

CAUTION : Indicates a potentially hazardous situation which, if not avoided, may result in

minor or moderate injury.

■ IMPORTANT : Indicates that equipment or property damage could result if instructions are not

followed.

■ NOTE : Gives helpful information.

BEFORE SERVICING AND REPAIRING

• Read all instructions and safety instructions in this manual and on your machine safety decals.

• Clean the work area and machine.

• Park the machine on a firm and level ground, and set the parking brake.

• Lower the implement to the ground.

• Stop the engine, and remove the key.

• Disconnect the battery negative cable.

• Hang a “DO NOT OPERATE” tag in operator station.

Page 4

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SAFETY INSTRUCTIONS

SAFETY STARTING

• Do not start the engine by shorting across starter terminals or bypassing the safety start switch.

• Do not alter or remove any part of machine safety system.

• Before starting the engine, make sure that all shift levers are in neutral positions or in disengaged positions.

• Never start the engine while standing on ground. Start the engine only from operator’s seat.

SAFETY WORKING

• Do not work on the machine while under the influence of alcohol, medication , or other substances or while fatigued.

• Wear close fitting clothing and safety equipment appropriate to the job.

• Use tools appropriate to the work. Makeshift tools, parts, and procedures are not recommended.

• When servicing is performed together by two or more persons, take care to perform all work safely.

• Do not work under the machine that is supported solely by a jack. Always support the machine by safety stands.

• Do not touch the rotating or hot parts while the engine is running.

• Never remove the radiator cap while the engine is running, or immediately after stopping. Otherwise, hot water will spout out from radiator. Only remove radiator cap when cool enough to touch with bare hands. Slowly loosen the cap to first stop to relieve pressure before removing completely.

• Escaping fluid (fuel or hydraulic oil) un der pressure can penetrate the skin causing serious injury. Relieve pressure before disconnecting hydraulic or fuel lines. Tighten all connections before applying pressure.

AVOID FIRES

• Fuel is extremely flammable and explosive under certain conditions. Do not smoke or allow flames or sparks in your working area.

• To avoid sparks from an accidental short circuit, always disconnect the battery negative cable first and connect it last.

• Battery gas can explode. Keep sparks and open flame away from the top of b attery, especially when charging the battery.

• Make sure that no fuel has been spilled on the engine.

Page 5

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SAFETY INSTRUCTIONS

VENTILATE WORK AREA

• If the engine must be running to do some work, make sure the area is well ventilated . Neve r run the eng ine in a closed area. The exhaust gas contains poisonous carbon monoxide.

PREVENT ACID BURNS

• Sulfuric acid in batte ry electrolyte is poisonou s. It is strong enough to burn skin, clothing and cause blindness if splashed into eyes. Keep electrolyte away from eyes, hands and clothing. If you spill electrolyte on yourself, flush with water, and get medical attention immediately.

DISPOSE OF FLUIDS PROPERLY

• Do not pour fluids into the ground, down a drain, or into a stream, pond, or lake. Observe relevant environmental prot ectio n regulati ons whe n disp osing of oil, fuel, coolant, electrolyte and other harmful waste.

PREPARE FOR EMERGENCIES

• Keep a first aid kit and fire extingui sher handy at all times.

• Keep emergency numbers for doctors, ambulance service, hospital and fire department near your telephone.

Page 6

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SAFETY INSTRUCTIONS

SAFETY DECALS

The following safety decals are installed on the machine. If a decal becomes damaged, illegible or is not on the machine, replace it. The decal part number is listed in the parts list.

Page 7

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SAFETY INSTRUCTIONS

Page 8

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SAFETY INSTRUCTIONS

Page 9

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SAFETY INSTRUCTIONS

Page 10

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SPECIFICATIONS

L3130

Model

2WD (ROPS) 4WD (ROPS) 4WD (ROPS) 4WD (ROPS)

Model D1503-MA-E-GST / D1503-MA-E2-GST Type Indirect injection vertical, water-cooled, 4-cycle diesel

Number of cylinders 3 Total displacement 1.499 L (91.5 cu.in.)

Engine

Capacities

Dimensions

Weight (with ROPS) 1415 kg (3120 lbs) 1460 kg (3220 lbs) 1480 kg (3265 lbs) 1500 kg (3305 lbs)

Travelling system

Hydraulic system

PTO

Note : * Manufacture’s estimate

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

Bore and stroke 83 × 92.4 mm (3.3 × 3.6 in.) Net power 23.1 kW (31.0 HP)* PTO power

(factory observe) Maximum torque 102.9 N·m (10.5 kgf·m, 75.9 ft-lbs) Battery capacity 12 V, RC : 123 min, CCA : 490 A Fuel Diesel fuel No. 1 [below −10 °C (14 °F], Diesel fuel No. 2-D [above −10 °C (14 °F)] Fuel tank 40 L (10.6 U.S.gals., 8.8 Imp.gals.) Engine crankcase

(with filter) Engine coolant 6.0 L (6.3 U.S.qts., 5.3 Imp.qts.) Transmission case 42 L (11.1 U.S.gals., 9.2 Imp.gals.) Overall length

(without 3P) Overall width (min. tread) 1520 mm (59.8 in.) Overall height (with ROPS

foldable / rigid) Wheel base 1810 mm (71.3 in.) 1805 mm (71.1 in.) Min. ground clearance 360 mm (14.2 in.)

1310 mm (51.6 in.)

Tread

Standard tire size

Clutch Dry type single stage Steering Hydrostatic power steering

Transmission

Braking system Wet disk type Min. turning radius

(with brake) Hydraulic control system Position control Pump capacity 31.5 L (8.3 U.S.gals., 6.9 Imp.gals.) / min. Three point hitch SAE Category I

Max. lift force

System pressure 17.1 to 18.1 MPa (175 to 185 kgf/cm Rear PTO SAE 1-3/8, 6 splines

PTO / Engine speed 540 min Mid-PTO (if equipped) USA No. 5 (KUBOTA 10-tooth) involute spline

PTO / Engine speed 2000 min

Front

Rear 1200 mm (47.2 in.), 1300 mm (51.2 in.), 1385 mm (54.5 in.), 1480 mm (58.3 in.)

Front 6-16 7.2-16 Rear 12.4-24

At lift points 1700 kg (3750 lbs) 24 in. behind

lift points

1410 mm (55.5 in.) 1510 mm (59.4 in.) 1610 mm (63.4 in.)

F8, R8 fully synchronized main and shuttle

2.6 m (8.5 feet) 2.7 m (8.9 feet)

Manual GST HST

D1503-MA-E-HST / D1503-MA-E2-HST

19.0 kW (25.5 HP)* / 2700 min

5.7 L (6.0 U.S.qts., 5.0 Imp.qts.)

2915 mm (114.8 in.)

2305 mm (90.7 in.) / 2140 mm (84.3 in.)

transmission

1200 kg (2650 lbs)

−1

(rpm) / 2550 min−1 (rpm)

−1

(rpm) / 2580 min−1 (rpm)

−1

(rpm)

1155 mm (45.5 in.)

F12, R8 Glide shift

transmission

, 2491 to 2633 psi)

17.9 kW (24.0 HP)* / 2700 min−1 (rpm)

Hydrotstatic

transmission

540 min−1 (rpm) / 2640 min

2000 min−1 (rpm) /

2670 min

(3 speeds)

−1

(rpm)

−1

(rpm)

W10281170

Page 11

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SPECIFICATIONS

L3430

Model

Manual GST HST

4WD (ROPS) 4WD (ROPS) 4WD (ROPS) 4WD (CABIN)

Model D1703-MA-E-GST / D1703-MA-E2-GST D1703-MA-E-HST / D1703-MA-E2-HST Type Indirect injection vertical, water-cooled, 4-cycle diesel Number of cylinders 3 Total displacement 1.647 L (100.5 cu.in.) Bore and stroke 87 × 92.4 mm (3.4 × 3.6 in.)

Engine

Net power 25.1 kW (33.6 HP)* PTO power

(factory observe)

21.3 kW (28.5 HP)* / 2700 min

−1

(rpm) 20.1 kW (27.0 HP)* / 2700 min−1 (rpm)

Maximum torque 108.3 N·m (11.05 kgf·m, 79.9 ft-lbs) Battery capacity 12 V, RC : 123 min, CCA : 490 A Fuel Diesel fuel No. 1 [below −10 °C (14 °F], Diesel fuel No. 2-D [above −10 °C (14 °F)] Fuel tank 40 L (10.6 U.S.gals., 8.8 Imp.gals.)

Capacities

Engine crankcase (with filter)

5.7 L (6.0 U.S.qts., 5.0 Imp.qts.)

Engine coolant 6.0 L (6.3 U.S.qts., 5.3 Imp.qts.) Transmission case 42 L (11.1 U.S.gals., 9.2 Imp.gals.) Overall length

(without 3P)

2915 mm (114.8 in.)

Overall width (min. tread) 1520 mm (59.8 in.) Overall height

Dimensions

(with CABIN or ROPS foldable / rigid)

2305 mm (90.7 in.) / 2140 mm (84.3 in.) 2195 mm (86.4 in.)

Wheel base 1805 mm (71.1 in.) Min. ground clearance 360 mm (14.2 in.)

Tread

Front 1155 mm (45.5 in.) Rear 1200 mm (47.2 in.), 1300 mm (51.2 in.), 1385 mm (54.5 in.), 1480 mm (58.3 in.)

Weight (with ROPS or CABIN) 1460 kg (3220 lbs) 1480 kg (3265 lbs) 1500 kg (3305 lbs) 1650 kg (3638 lbs)

Standard tire size

Front 7.2-16

Rear 12.4-24 Clutch Dry type single stage Steering Hydrostatic power steering

Travelling system

Transmission

F8, R8 fully

synchronized main

and shuttle

transmission

F12, R8 Glide shift

transmission

Hydrotstatic transmission

(3 speeds)

Braking system Wet disk type Min. turning radius

(with brake)

2.7 m (8.9 feet)

Hydraulic control system Position control Pump capacity 31.5 L (8.3 U.S.gals., 6.9 Imp.gals.) / min.

Hydraulic system

Three point hitch SAE Category I Max. lift

force

At lift points 1700 kg (3750 lbs)

24 in. behind

lift points

1200 kg (2650 lbs)

System pressure 17.1 to 18.1 MPa (175 to 185 kgf/cm

, 2491 to 2633 psi)

Rear PTO SAE 1-3/8, 6 splines

PTO

PTO / Engine speed 540 min Mid-PTO (if equipped) USA No. 5 (KUBOTA 10-tooth) involute spline PTO / Engine speed 2000 min

−1

(rpm) / 2550 min−1 (rpm) 540 min−1 (rpm) / 2640 min−1 (rpm)

−1

(rpm) / 2580 min−1 (rpm) 2000 min−1 (rpm) / 2670 min−1 (rpm)

Note : * Manufacture’s estimate

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

W10357910

Page 12

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SPECIFICATIONS

L3830

Model

Manual GST HST

2WD (ROPS) 4WD (ROPS) 4WD (ROPS) 4WD (ROPS)

Model D1803-M-E-GST / D1803-M-E2-GST

D1803-M-E-HST /

D1803-M-E2-HST Type Indirect injection vertical, water-cooled, 4-cycle diesel Number of cylinders 3 Total displacement 1.826 L (111.4 cu.in.)

Engine

Bore and stroke 87 × 102.4 mm (3.4 × 4.0 in.) Net power 27.9 kW (37.4 HP)* PTO power

(factory observe)

23.9.0 kW (32.0 HP)* / 2700 min

−1

(rpm)

22.8 kW (30.5 HP)* / 2700 min

−1

(rpm) Maximum torque 120.7 N·m (12.3 kgf·m, 89.0 ft-lbs) Battery capacity 12 V, RC : 133 min, CCA : 582 A Fuel Diesel fuel No. 1 [below −10 °C (14 °F], Diesel fuel No. 2-D [above −10 °C (14 °F)] Fuel tank 40 L (10.6 U.S.gals., 8.8 Imp.gals.)

Capacities

Engine crankcase (with filter)

6.7 L (7.1 U.S.qts., 5.9 Imp.qts.)

Engine coolant 7.5 L (7.9 U.S.qts., 6.6 Imp.qts.) Transmission case 43 L (11.4 U.S.gals., 9.5 Imp.gals.) Overall length

(without 3P)

2985 mm (117.5 in.)

Overall width (min. tread) 1690 mm (66.5 in.)

Dimensions

Overall height (with ROPS foldable / rigid)

Wheel base 1845 mm (72.6 in.) 1840 mm (72.4 in.)

2315 mm (91.1 in.) / 2155 mm (84.8 in.)

Min. ground clearance 375 mm (14.8 in.)

1310 mm (51.6 in.) 1410 mm (55.5 in.) 1510 mm (59.4 in.) 1610 mm (63.4 in.)

1155 mm (45.5 in.)

Tread

Front

Rear 1285 mm (50.6 in.), 1435 mm (56.5 in.), 1530 mm (60.2 in.)

Weight (with ROPS) 1430 kg (3155 lbs) 1480 kg (3265 lbs) 1495 kg (3295 lbs) 1515 kg (3340 lbs)

Standard tire size

Front 6-16 8.3-16 Rear 14.9-24

Clutch Dry type single stage

Travelling system

Steering Hydrostatic power steering

Transmission

F8, R8 fully synchronized main and shuttle

transmission

F12, R8 Glide shift

transmission

Hydrotstatic

transmission

(3 speeds)

Braking system Wet disk type Min. turning radius

(with brake)

2.6 m (8.5 feet) 2.7 m (8.9 feet)

Hydraulic control system Position control Pump capacity 31.5 L (8.3 U.S.gals., 6.9 Imp.gals.) / min.

Hydraulic system

Three point hitch SAE Category I

Max. lift force

At lift points 1750 kg (3860 lbs) 24 in. behind

lift points

1250 kg (2760 lbs)

System pressure 17.1 to 18.1 MPa (175 to 185 kgf/cm

, 2491 to 2633 psi)

Rear PTO SAE 1-3/8, 6 splines

−1

(rpm) /

−1

(rpm)

−1

(rpm) /

−1

(rpm)

PTO

−1

PTO / Engine speed 540 min

(rpm) / 2550 min−1 (rpm)

Mid-PTO (if equipped) USA No. 5 (KUBOTA 10-tooth) involute spline PTO / Engine speed 2000 min

−1

(rpm) / 2580 min−1 (rpm)

540 min 2640 min

2000 min

2670 min

Note : * Manufacture’s estimate

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

W10375160

Page 13

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SPECIFICATIONS

L4330

Model

Manual GST HST

4WD (ROPS) 4WD (ROPS) 4WD (ROPS) 4WD (CABIN)

Model V2203-MA-E-GST / V2203-MA-E2-GST V2203-MA-E-HST / V2203-MA-E2-HST Type Indirect injection vertical, water-cooled, 4-cycle diesel Number of cylinders 4 Total displacement 2.197 L (134.1 cu.in.) Bore and stroke 87 × 92.4 mm (3.4 × 3.6 in.)

Engine

Net power 30.6 kW (41.0 HP)* PTO power

(factory observe)

26.9 kW (36.0 HP)* / 2600 min

−1

(rpm) 25.7 kW (34.5 HP)* / 2600 min−1 (rpm)

Maximum torque 146.2 N·m (14.9 kgf·m, 107.8 ft-lbs) Battery capacity 12 V, RC : 133 min, CCA : 582 A Fuel Diesel fuel No. 1 [below −10 °C (14 °F], Diesel fuel No. 2-D [above −10 °C (14 °F)] Fuel tank 40 L (10.6 U.S.gals., 8.8 Imp.gals.)

Capacities

Engine crankcase (with filter)

8.2 L (8.7 U.S.qts., 7.2 Imp.qts.)

Engine coolant 7.5 L (7.9 U.S.qts., 6.6 Imp.qts.) Transmission case 43 L (11.4 U.S.gals., 9.5 Imp.gals.) Overall length

(without 3P)

3080 mm (121.3 in.)

Overall width (min. tread) 1690 mm (66.5 in.) Overall height

Dimensions

(with CABIN or ROPS foldable / rigid)

2315 mm (91.1 in.) / 2155 mm (84.8 in.) 2210 mm (87.0 in.)

Wheel base 1895 mm (74.6 in.) Min. ground clearance 375 mm (14.8 in.)

Tread

Front 1300 mm (51.2 in.) Rear 1285 mm (50.6 in.), 1435 mm (56.5 in.), 1530 mm (60.2 in.)

Weight (with ROPS or CABIN) 1560 kg (3440 lbs) 1575 kg (3470 lbs) 1600 kg (3525 lbs) 1750 kg (3858 lbs)

Standard tire size

Front 8.3-16

Rear 14.9-24 Clutch Dry type single stage Steering Hydrostatic power steering

Travelling system

Transmission

F8, R8 fully

synchronized main

and shuttle

transmission

F12, R8 Glide shift

transmission

Hydrotstatic transmission

(3 speeds)

Braking system Wet disk type Min. turning radius

(with brake)

2.7 m (8.9 feet)

Hydraulic control system Position control Pump capacity 35.6 L (9.4 U.S.gals., 7.8 Imp.gals.) / min.

Hydraulic system

Three point hitch SAE Category I Max. lift

force

At lift points 1750 kg (3860 lbs)

24 in. behind

lift points

1250 kg (2760 lbs)

System pressure 18.1 to 19.1 MPa (185 to 195 kgf/cm

, 2633 to 2775 psi)

Rear PTO SAE 1-3/8, 6 splines

PTO

PTO / Engine speed 540 min Mid-PTO (if equipped) USA No. 5 (KUBOTA 10-tooth) involute spline PTO / Engine speed 2000 min

−1

(rpm) / 2550 min−1 (rpm) 540 min−1 (rpm) / 2440 min−1 (rpm)

−1

(rpm) / 2580 min−1 (rpm) 2000 min−1 (rpm) / 2470 min−1 (rpm)

Note : * Manufacture’s estimate

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

W10388600

Page 14

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SPECIFICATIONS

L4630

Model

Manual GST HST

4WD (ROPS) 4WD (ROPS) 4WD (CABIN) 4WD (ROPS)

Model V2203-MB- E-GS T / V2203-MB -E2-G S T

V2203-MB-E-HST /

V2203-MB-E2-HST Type Indirect injection vertical, water-cooled, 4-cycle diesel Number of cylinders 4 Total displacement 2.197 L (134.1 cu.in.)

Engine

Bore and stroke 87 × 92.4 mm (3.4 × 3.6 in.) Net power 33.3 kW (44.7 HP)* PTO power

(factory observe)

29.5 kW (39.5 HP)* / 2700 min

−1

(rpm)

28.3 kW (38.0 HP)* / 2700 min−1 (rpm)

Capacities

Engine crankcase (with filter)

8.2 L (8.7 U.S.qts., 7.2 Imp.qts.)

Engine coolant 7.5 L (7.9 U.S.qts., 6.6 Imp.qts.) Transmission case 43 L (11.4 U.S.gals., 9.5 Imp.gals.) Overall length

(without 3P)

3080 mm (121.3 in.)

Overall width (min. tread) 1690 mm (66.5 in.)

Dimensions

Overall height (with CABIN or ROPS foldable / rigid)

2315 mm (91.1 in.) / 2155 mm (84.8 in.) 2210 mm (87.0 in.)

2315 mm (91.1 in.) /

2155 mm (84.8 in.)

Wheel base 1895 mm (74.6 in.) Min. ground clearance 375 mm (14.8 in.)

Tread

Front 1300 mm (51.2 in.) Rear 1285 mm (50.6 in.), 1435 mm (56.5 in.), 1530 mm (60.2 in.)

Weight (with ROPS or CABIN) 1560 kg (3440 lbs) 1575 kg (3470 lbs) 1730 kg (3815 lbs) 1600 kg (3525 lbs)

Standard tire size

Front 8.3-16

Rear 14.9-24 Clutch Dry type single stage Steering Hydrostatic power steering

Travelling system

Transmission

F8, R8 fully

synchronized main

and shuttle

transmission

F12, R8 Glide shift transmission

Hydrotstatic

transmission

(3 speeds)

Braking system Wet disk type Min. turning radius

(with brake)

2.7 m (8.9 feet)

Hydraulic control system Position control Pump capacity 37.0 L (9.8 U.S.gals., 8.1 Imp.gals.) / min.

Hydraulic system

Three point hitch SAE Category I Max. lift

force

At lift points 1750 kg (3860 lbs)

24 in. behind

lift points

1250 kg (2760 lbs)

System pressure 18.1 to 19.1 MPa (185 to 195 kgf/cm

, 2633 to 2775 psi)

Rear PTO SAE 1-3/8, 6 splines

540 min−1 (rpm) / 2640 min

2000 min−1 (rpm) /

2670 min

−1

(rpm)

PTO

PTO / Engine speed 540 min

−1

(rpm) / 2550 min−1 (rpm)

Mid-PTO (if equipped) USA No. 5 (KUBOTA 10-tooth) involute spline PTO / Engine speed 2000 min

−1

(rpm) / 2580 min−1 (rpm)

Note : * Manufacture’s estimate

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

W10400750

Page 15

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

SPECIFICATIONS

L5030

Model

GST HST

4WD (ROPS) 4WD (ROPS) 4WD (CABIN)

Model

V2403-MA-E-GST / V2403-MA-E2-GST

V2403-MA-E-HST / V2403-MA-E2-HST

Type Indirect injection vertical, water-cooled, 4-cycle diesel

Number of cylinders 4

Total displacement 2.434 L (148.5 cu.in.)

Engine

Bore and stroke 87 × 102.4 mm (3.4 × 4.0 in.)

Net power 37.3 kW (50.0 HP)*

PTO power

(factory observe)

32.8 kW (44.0 HP)* / 2700 min

−1

(rpm)

31.7 kW (42.5 HP)* / 2700 min

−1

(rpm)

Maximum torque 162.4 N·m (16.6 kgf·m, 119.8 ft-lbs) Battery capacity 12 V, RC : 133 min, CCA : 582 A Fuel Diesel fuel No. 1 [below −10 °C (14 °F], Diesel fuel No. 2-D [above −10 °C (14 °F)] Fuel tank 43 L (11.4 U.S.gals., 9.5 Imp.gals.)

Capacities

Engine crankcase (with filter)

8.2 L (8.7 U.S.qts., 7.2 Imp.qts.)

Engine coolant 8.0 L (8.5 U.S.qts., 7.0 Imp.qts.) Transmission case 45 L (11.9 U.S.gals., 9.9 Imp.gals.) Overall length

(without 3P)

3205 mm (126.2 in.)

Overall width (min. tread) 1710 mm (67.3 in.) Overall height

Dimensions

(with CABIN or ROPS foldable / rigid)

2355 mm (92.7 in.) / 2190 mm (86.2 in.) 2270 mm (89.4 in.)

Wheel base 1915 mm (75.4 in.) Min. ground clearance 405 mm (15.9 in.)

Tread

Front 1340 mm (52.8 in.) Rear 1325 mm (52.2 in.), 1430 mm (56.3 in.)

Weight (with ROPS or CABIN) 1680 kg (3705 lbs) 1700 kg (3750 lbs) 1855 kg (4090 lbs)

Standard tire size

Front 9.5-16 Rear 14.9-26

Clutch Dry type single stage

Travelling system

Steering Hydrostatic power steering Transmission

F12, R8 Glide shift

transmission

Hydrotstatic transmission (3 speeds)

Braking system Wet disk type Min. turning radius

(with brake)

2.8 m (9.2 feet)

Hydraulic control system Position control Pump capacity 37.0 L (9.8 U.S.gals., 8.1 Imp.gals.) / min.

Hydraulic system

Three point hitch SAE Category I

Max. lift force

At lift points 1750 kg (3860 lbs) 24 in. behind

lift points

1350 kg (2980 lbs)

System pressure 18.1 to 19.1 MPa (185 to 195 kgf/cm

, 2633 to 2775 psi)

Rear PTO SAE 1-3/8, 6 splines

−1

(rpm) /

−1

(rpm) /

−1

(rpm)

540 min−1 (rpm) / 2660 min−1 (rpm)

−1

2000 min

(rpm) / 2690 min−1 (rpm)

PTO

PTO / Engine speed

540 min 2550 min−1 (rpm)

Mid-PTO (if equipped) USA No. 5 (KUBOTA 10-tooth) involute spline PTO / Engine speed

2000 min

2580 min

Note : * Manufacture’s estimate

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

W10417330

Page 16

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

TRAVELLING SPEEDS

[Manual Transmission Type]

Model

Tire size (Rear) 12.4-24 14.9-24 14.9-24 14.9-24 14.9-26 Shuttle shift

lever

Forward (At rated engine rpm)

Reverse (At rated engine rpm)

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

Range gear shift lever

Low

High

Low

High

Main gear shift lever km/h (mph) km/h (mph) km/h (mph) km/h (mph) km/h (mph)

1 1.6 (1.0) 1.5 (0.9) 1.6 (1.0) 1.5 (0.9) 1.5 (0.9) 2 2.3 (1.4) 2.1 (1.3) 2.2 (1.4) 2.1 (1.3) 2.2 (1.4) 3 3.7 (2.3) 3.5 (2.2) 3.6 (2.2) 3.5 (2.2) 3.5 (2.2) 4 5.4 (3.4) 5.1 (3.2) 5.3 (3.3) 5.1 (3.2) 5.2 (3.2) 1 7.8 (4.8) 7.6 (4.7) 7.7 (4.8) 7.6 (4.7) 7.8 (4.8) 2 11.1 (6.9) 10.7 (6.6) 10.9 (6.8) 10.7 (6.6) 11.0 (6.8) 3 18.0 (11.2) 17.4 (10.8) 17.6 (10.8) 17.4 (10.8) 17.9 (10.9) 4 26.6 (16.5) 25.7 (16.0) 26.0 (16.2) 25.7 (16.0) 26.4 (16.4) 1 1.5 (0.9) 1.4 (0.9) 1.5 (0.9) 1.4 (0.9) 1.5 (0.9) 2 2.2 (1.4) 2.0 (1.2) 2.1 (1.3) 2.0 (1.2) 2.1 (1.3) 3 3.5 (2.2) 3.3 (2.1) 3.4 (2.1) 3.3 (2.1) 3.4 (2.1) 4 5.2 (3.2) 4.9 (3.0) 5.1 (3.2) 4.9 (3.0) 5.0 (3.1) 1 7.5 (4.7) 7.2 (4.5) 7.3 (4.5) 7.2 (4.5) 7.4 (4.6) 2 10.6 (6.6) 10.2 (6.3) 10.4 (6.5) 10.2 (6.3) 10.4 (6.5) 3 17.2 (10.7) 16.6 (10.3) 16.8 (10.4) 16.6 (10.3) 17.1 (10.6) 4 25.4 (15.8) 24.5 (15.2) 24.8 (15.4) 24.5 (15.2) 25.2 (15.7)

L3130 L3430

L3830 L4330 L4630 L5030

W1035065

Page 17

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

TRAVELLING SPEEDS

[GST Type]

Model

L3130 L3430

L3830 L4330 L4630 L5030

Tire size (Rear) 12.4-24 14.9-24 14.9-24 14.9-24 14.9-26 Shuttle shift

lever

Main gear shift lever

km/h (mph) km/h (mph) km/h (mph) km/h (mph) km/h (mph)

1 1.6 (1.0) 1.5 (0.9) 1.6 (1.0) 1.5 (0.9) 1.5 (0.9) 2 2.3 (1.4) 2.1 (1.3) 2.2 (1.4) 2.1 (1.3) 2.2 (1.4) 3 3.1 (1.9) 2.9 (1.8) 3.0 (1.9) 2.9 (1.8) 2.9 (1.8) 4 3.7 (2.3) 3.5 (2.2) 3.6 (2.2) 3.5 (2.2) 3.5 (2.2) 5 4.5 (2.8) 4.2 (2.6) 4.4 (2.7) 4.2 (2.6) 4.3 (2.7)

Forward

6 5.4 (3.4) 5.1 (3.2) 5.3 (3.3) 5.1 (3.2) 5.2 (3.2)

(At rated engine rpm)

7 6.5 (4.0) 6.3 (3.9) 6.4 (4.0) 6.3 (3.9) 6.5 (4.0) 8 7.8 (4.8) 7.6 (4.7) 7.7 (4.8) 7.6 (4.7) 7.8 (4.8)

9 9.2 (5.7) 8.9 (5.5) 9.0 (5.6) 8.9 (5.5) 9.1 (5.7) 10 11.1 (6.9) 10.7 (6.6) 10.9 (6.8) 10.7 (6.6) 11.0 (6.8) 11 18.0 (11.2) 17.4 (10.8) 17.6 (10.8) 17.4 (10.8) 17.9 (10.9) 12 26.6 (16.5) 25.7 (16.0) 26.0 (16.2) 25.7 (16.0) 26.4 (16.4)

1 1.5 (0.9) 1.4 (0.9) 1.5 (0.9) 1.4 (0.9) 1.5 (0.9)

2 2.2 (1.4) 2.0 (1.2) 2.1 (1.3) 2.0 (1.2) 2.1 (1.3)

3 3.5 (2.2) 3.3 (2.1) 3.4 (2.1) 3.3 (2.1) 3.4 (2.1)

Reverse

4 5.2 (3.2) 4.9 (3.0) 5.1 (3.2) 4.9 (3.0) 5.0 (3.1)

(At rated engine rpm)

5 7.5 (4.7) 7.2 (4.5) 7.3 (4.5) 7.2 (4.5) 7.4 (4.6)

6 10.6 (6.6) 10.2 (6.3) 10.4 (6.5) 10.2 (6.3) 10.4 (6.5)

7 17.2 (10.7) 16.6 (10.3) 16.8 (10.4) 16.6 (10.3) 17.1 (10.6)

8 25.4 (15.8) 24.5 (15.2) 24.8 (15.4) 24.5 (15.2) 25.2 (15.7)

The company reserves the right to change the spe cifi ca tion s with out notic e.

W1032246

Page 18

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

TRAVELLING SPEEDS

[With Creep Speed Model]

Model L4630 CABIN

Creep gear shift lever High Low Tire size (Rear) 14.9-24 Shuttle shift lever Main gear shift lever km/h (mph) km/h (mph)

1 1.5 (0.9) 0.17 (0.11) 2 2.1 (1.3) 0.24 (0.15) 3 2.9 (1.8) 0.32 (0.20) 4 3.5 (2.2) 0.39 (0.24) 5 4.2 (2.6) 0.47 (0.29)

Forward (At rated engine rpm)

6 5.1 (3.2) 0.57 (0.35) 7 6.3 (3.9) 0.71 (0.44) 8 7.6 (4.8) 0.85 (0.53)

9 8.9 (5.5) 1.00 (0.62) 10 10.7 (6 .6) 1.20 (0.75) 11 17.4 (10.8) 1.95 (1.21) 12 25.7 (16.0) 2.88 (1.79)

1 1.4 (0.9) 0.16 (0.10)

2 2.0 (1.2) 0.23 (0.14)

3 3.3 (2.1) 0.37 (0.23)

Reverse (At rated engine rpm)

4 4.9 (3.0) 0.55 (0.34)

5 7.2 (4.5) 0.81 (0.50)

6 10.2 (6.2) 1.15 (0.71)

7 16.6 (10.3) 1.86 (1.16)

8 24.5 (15.2) 2.75 (1.71)

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

W1033852

Page 19

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

TRAVELLING SPEEDS

[HST Type]

Model

L3130 L3430

L3830 L4330 L4630 L5030

Tire size (Rear) 12.4-24 14.9-24 14.9-24 14.9-24 14.9-26 Shuttle shift

lever

Forward (At rated engine rpm)

Reverse (At rated engine rpm)

Range gear shift lever

km/h (mph) km/h (mph) km/h (mph) km/h (mph) km/h (mph)

0 to 6.3

(0 to 3.9) 0 to 12.1

(0 to 7.5) 0 to 27.0

(0 to 16.8)

0 to 5.7

(0 to 3.5)

0 to 10.9

(0 to 6.8)

0 to 24.3

(0 to 15.1)

0 to 5.9

(0 to 3.7)

0 to 11.4

(0 to 7.1) 0 to 25.3

(0 to 15.7)

0 to 5.3

(0 to 3.3)

0 to 10.3

(0 to 6.4)

0 to 22.8

(0 to 14.2)

0 to 6.2

(0 to 3.9)

0 to 11.9

(0 to 7.4) 0 to 26.4

(0 to 16.4)

0 to 5.5

(0 to 3.4) 0 to 10.7

(0 to 6.6) 0 to 23.8

(0 to 14.8)

0 to 5.9

(0 to 3.7)

0 to 11.4

(0 to 7.1) 0 to 25.3

(0 to 15.7)

0 to 5.3

(0 to 3.3)

0 to 10.3

(0 to 6.4)

0 to 22.8

(0 to 14.2)

0 to 6.1

(0 to 3.8)

0 to 11.8

(0 to 7.3) 0 to 26.1

(0 to 16.2)

0 to 5.5

(0 to 3.4) 0 to 10.6

(0 to 6.6) 0 to 23.5

(0 to 14.6)

The company reserves the right to change the spe cifi ca tion s with out notic e.

W1034865

Page 20

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

DIMENSIONS

[L3130, L3430, L3830]

DIMENSIONS

Page 21

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

[L4330, L4630, L5030]

DIMENSIONS

Page 22

G GENERAL

KiSC issued 06, 2006 A

Page 23

GENERAL

KiSC issued 06, 2006 A

CONTENTS

1. TRACTOR IDENTIFICATION ......................................................................... G-1

[1] MODEL NAME AND SERIAL NUMBERS.............................................. G-1

[2] E2 ENGINE ....... ...... ....... ...... ....... ...... ....................................... ...... ....... .... G- 3

[3] CYLINDER NUMBER ............................................................................... G-3

2. GENERAL PRECAUTIONS ............................................................................ G-4

3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING..G-5

[1] WIRING .......................................................... ................................ ........... G-5

[2] BATTERY................................................................................................... G-7

[3] FUSE.......................................................................................................... G-7

[4] CONNECTOR............................................................................................ G-7

[5] HANDLING OF CIRCUIT TESTER......................................................... G-8

4. LUBRICANTS, FUEL AND COOLANT ......................................................... G-9

5. TIGHTENING TORQUES ............................. ....... ...... ....... ...... ....... ...... ....... .. G-11

[1] GENERAL USE SCREWS, BOLTS AND NUTS................................. G-11

6. MAINTENANCE............................................................................................. G-12

7. CHECK AND MAINTENANCE......... ...... ...... ....... ...... ....... ...... ....... ............... G-14

[1] DAILY CHECK........................................................................................ G-14

[2] CHECK POINTS OF INITIAL 50 HOURS........................................... G-15

[3] CHECK POINTS OF EVERY 50 HOURS........................................... G-19

[4] CHECK POINTS OF EVERY 100 HOURS........................................ G-22

[5] CHECK POINTS OF EVERY 200 HOURS......................................... G-27

[6] CHECK POINTS OF EVERY 400 HOURS......................................... G-32

[7] CHECK POINTS OF EVERY 600 HOURS......................................... G-32

[8] CHECK POINTS OF EVERY 800 HOURS......................................... G-32

[9] CHECK POINTS OF EVERY 1500 HOURS....................................... G-32

[10]CHECK POINTS OF EVERY 3000 HOURS....................................... G-32

[11]CHECK POINTS OF EVERY 1 YEAR................................................ G-33

[12]CHECK POINTS OF EVERY 2 YEARS.............................................. G-33

[13]OTHERS .................................................................................................. G-35

8. SPECIAL TOOLS.......................................................................................... G-39

[1] SPECIAL TOOLS FOR ENGINE .......................................................... G-39

[2] SPECIAL TOOLS FOR TRACTOR....................................................... G-47

9. TIRES............................................................................................................. G-55

[1] TIRE PRESSURE................................................................................... G-55

[2] TREADS ADJUSTMENT ........................................................................ G-56

(1) Front Wheels...................................................................................... G-56

(2) Rear Wheels ...................................................................................... G-57

[3] TIRE LIQUID INJECTION...................................................................... G-59

[4] IMPLEMENT LIMITATIONS................................. ....... ...... ...................... G-62

Page 24

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

1. TRACTOR IDENTIFICATION

[1] MODEL NAME AND SERIAL NUMBERS

When contacting your loca l KUBOTA distr ibutor, alway s specify

engine serial number, tractor serial number and hour meter reading.

(1) T ractor Identification Plate (2) CABIN Identification Plate

(CABIN Serial Number)

(3) T ractor Serial Number

G GENERAL

(4) Engine Serial Number (5) Hour Meter (IntelliPanel Display)

W10106000

G-1

Page 25

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

Engine Serial Number

When contacting the m anufacture, always specify your engine

model name and serial number.

The engine model and its serial number need to be identified

before the engine can be serviced or parts replaced.

■ Engine Serial Number

The engine serial number is an identified number for the engine.

It is marked after the engine model number.

It indicates month and year of manufacture as follows.

• Year of manufacture

Alphabet or

Number

1 2001 F 2015 2 2002 G 2016 3 2003 H 2017 4 2004 J 2018 5 2005 K 2019 6 2006 L 2020 7 2007 M 2021 8 2008 N 2022

9 2009 P 2023 A 201 0 R 2024 B 2011 S 2025 C 2012 T 2026 D 2013 V 2027 E 201 4

Year

Alphabet or

Number

Year

• Month of manufacture

Month

January A 0001 ~ A9999 B0001 ~ February C0001 ~ C9999 D0001 ~ March E0001 ~ E9999 F0001 ~ April G0001 ~ G9999 H0001 ~ May J0001 ~ J9999 K0001 ~ June L0001 ~ L9999 M0001 ~ July N0001 ~ N9999 P0001 ~ August Q0001 ~ Q9999 R0001 ~ September S0001 ~ S9999 T0001 ~ October U0001 ~ U9999 V0001 ~ November W0001 ~ W9999 X0001 ~ December Y0001 ~ Y9999 Z0001 ~

Engine Serial Number 0001 ~ 9999 10000 ~

e.g. D1803-3A0001 “3” indicates 2003 and “A” indicates January.

So, 3A indicates that the engine was manufactured on January,

2003.

(1) Engine Model and Serial Number

W1010477

G-2

Page 26

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

[2] E2 ENGINE

[ex.: Model Name D1803-M-E2-XXXX]

The emission controls that have been put into effect in various countries to prevent air pollution will be stepped up.

The time to enforce the regulations differs depending on the engine output classifications.

Kubota has been suppl ying the diesel engines conforming to the emission regulations in respect ive countries. Exhaust emissions regulations shift to the second stage. Kubota executed the improvement of the engine according to this regulation.

In order to discriminate the engines conforming to Tier 1 / Phase 1 requirements and those conforming to Tier 2 / Phase 2 requirements , we have adopted E2 as a new model name for the engines conforming Tier 2 / Phase 2 regulations with emission label (1) or (2).

In the after-sale services for 03-M-E2 series engines, only use the dedicated parts for E2 models and carry out the maintenance services accordingly.

[3] CYL INDER NUMBER

The cylinder numbers of KUB OTA dies el engine ar e des ignated

as shown in the figure.

The sequence of c ylinder numb ers is given as No. 1, No.2, No.3

and No.4 starting from the gear case side.

W1011077

G-3

Page 27

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

2. GENERAL PRECAUTIONS

• During disa ssembly, ca refully ar range removed parts in a cle an area to prevent confusion later. Screws, bolts and nuts should be installed in their original position to prevent reassembly errors.

• When special tools are requi red, use KUBOT A genuine speci al tools. Special tools which are not frequently used should be made according to the drawings provided.

• Before disassembling or servicing electrical wires, always disconnect the ground cable from the battery first.

• Remove oil and dirt from parts before measuring.

• Use only KUBOTA genuine parts for parts replacement to maintain machine performance and to assure safety.

• Gaskets and O-rings must be replaced during reassembly. Apply grease to new O-rings or oil seals before assembling. See the figure left side.

• When reassem bling external snap rings or inte rnal snap rings, they must be positioned so that sharp edge faces against the direction from which a force is applied. See the figure left side.

• When insert ing spring pins, their splits must face the direction from which a force is applied. See the figure left side.

• To prevent dam age to the hydraulic s ystem, use only sp ecified fluid or equivalent.

(1) Grease (2) Force (3) Sharp Edge (4) Axial Force (5) Rotating Movement

G GENERAL

(A) External Snap Ring (B) Internal Snap Ring

W10109040

G-4

Page 28

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

IMPORTANT■

KiSC issued 06, 2006 A

G GENERAL

3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING

To ensure safety and prevent damage to the machine and surrounding equipm ent, heed the following pr ecautions in handling electrical parts and wiring.

• Check electrical wiring for damage and loosened connection every year. To this end, educate the customer to do his or her own check and at the s ame time recommend the dealer to perform periodic check for a fee.

• Do not attempt to modify or remodel any electrical parts and wiring.

• When removing th e ba tter y cab le s, dis co nn ect t he n egat ive cable first. When in stalling the b attery cables, c onnect the positive cable first.

(1) Negative Terminal (2) Positive Terminal

W10111140

[1] WIRING

• Securely t ighten wiring terminals.

(1) Correct

(Securely Tighten)

(2) Incorrect

(Loosening Leads to Faulty Contact)

W10112160

• Do not let wiring contact dangerous part.

(1) Wiring (Correct) (2) Wiring (Incorrect)

(3) Dangerous Part (4) Dangerous Part

• Securely insert grommet.

(1) Grommet (A) Correct

(B) Incorrect

W10113130

W10113880

G-5

Page 29

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

• Securely clamp, being careful not to damage wiring.

(1) Clamp

• Wind Clamp Spirally

(2) Wire Harness

(3) Clamp (4) Welding Dent

W10114580

• Clamp wiring so that there is no twist, unnecessary sag, or excessive tension, except for movable part, where sag be required.

(1) Wiring (2) Clamp

(A) Correct (B) Incorrect

W10115870

• In installing a part, take care not to get wiring caught by it.

(1) Wiring (A) Incorrect

W10116700

• After installing wiring, check protection of terminals and clamped condition of wiring, only connect battery.

(1) Cover

• Securely Install Cover W10117350

G-6

Page 30

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

[2] BATTERY

G GENERAL

• Take care not to confuse positive and negative terminal posts.

• When removing b attery cables, disconnect negative cable first. When installing battery cables, check for polarity and connect positive cable first.

• Do not install a ny battery with capacity other than is specified (Ah).

• After connecting cables to battery terminal posts, apply high temperature grease to them a nd sec urely in stall t erminal covers on them.

• Do not allow dirt and dust to collect on battery.

CAUTION

• Take care not to let battery liquid spill on your skin and clothes. If contaminated, wash it off with water immediately.

• Before recharging the battery, remove it from the machine.

• Before recharging, remove cell caps.

• Do recharging in a well- ventilated place where there is no open flame nearby, as hydrogen gas and oxygen are formed.

W10118160

[3] FUSE

[4] CONNECTOR

• Use fuses with specified capacity. Neither too large or small capacity fuse is acceptable.

• Never use steel or copper wire in place of fuse.

• Do not install working light, radio set, etc. on machine which is not provided with reserve power supply.

• Do not install accessories if fuse capacity of reserve power supply is exceeded.

(1) Fuse (2) Slow Blow Fuse

W10120920

• For connector with lock, push lock to separate.

(A) Push

W10122110

• In separating connectors, do not pull wire harnesses.

• Hold connector bodies to separate.

(A) Correct (B) Incorrect

W10122720

G-7

Page 31

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

• Use sandpaper to remove rust from terminals.

• Repair deformed terminal. Make certain there is no terminal being exposed or displaced.

(1) Exposed Terminal (2) Deformed Terminal

(3) Sandpaper (4) R ust

W10123460

• Make certain that there is no female connector being too open.

(A) Correct (B) Incorrect

W10124300

• Make certain plastic cover is large enough to cover whole connector.

(1) Cover (A) Correct

[5] HANDLING OF CIRCUIT TESTER

• Use tester correctly following manual provided with tester.

• Check for polarity and range .

(B) Incorrect

W10125190

W10126840

G-8

Page 32

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

4. LUBRICANTS, FUEL AND COOLANT

G GENERAL

Place

1 Fuel tank

2 Cooling system

Engine

crankcase (with filter)

Transmission

case

Front axle case

(4WD)

Place No. of greasing point Capacity Type of grease

Front wheel hub (2WD)

Knuckle shaft (2WD)

Front axle case support

Front axle support (4WD)

Top link 1 2 T op link bracket

(if equipped)

2 (with draft control)

Lift rod 2 Lift cylinder 4 Battery terminal 2 Throttle cable Oiling Engine oil

* KUBOTA original transmission hydraulic fluid.

Capacity

8.2 L

8.7 U.S.qts.

7.2 Imp.qts.

9.0 L

9.5 U.S.qts.

7.9 Imp.qts.

Greasing

–

43 L

11.4 U.S.gals.

9.5 Imp.gals.

8.0 L

8.5 U.S.qts.

7.0 Imp.qts.

45 L

11.9 U.S.gals.

9.9 Imp.gals.

Lubricants, fuel and coolant

No. 2-D diesel fuel No. 1-D diesel fuel if temperature is below −10 °C (14 °F)

Fresh clean water with anti-freeze

KUBOT A UDT or SUPER UDT fluid*

KUBOT A UDT or SUPER UDT fluid* or SAE80, 90 gear oil

Until grease overflows

Multipurpose type grease

Moderate amount

G-10

Page 34

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

5. TIGHTENING TORQUES

Screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual should be

tightened according to tables below.

[1] GENERAL USE SCREWS, BOLTS AND NUTS

Indication on top of

bolt

Material of bolt SS400, S20C S43C, S48C

Material of opponent

part

Unit Diameter

(6 mm, 0.24 in.)

(8 mm, 0.31 in.)

M10

(10 mm, 0.39 in.)

M12

(12 mm, 0.47 in.)

M14

(14 mm, 0.55 in.)

M16

(16 mm, 0.63 in.)

M18

(18 mm, 0.71 in.)

M20

(20 mm, 0.79 in.)

No-grade or 4T 7T 9T

Ordinariness Aluminum Ordinariness Aluminum Ordinariness

N·m kgf·m ft-lbs N·m kgf·m ft-lbs N·m kgf·m ft-lbs N·m kgf·m ft-lbs N·m kgf·m ft-lbs

7.85

0.80

5.79

7.85

0.80

5.79

9.81

1.00

9.31

17.7 to

20.5

39.3 to

45.1

62.8 to

72.5

108

125 167

191 246

284 334

392

0.95

1.8 to

2.1

4.0 to

4.6

6.4 to

7.4

11.0 to

12.8

17.0 to

19.5

25.0 to

29.0

34.0 to

40.0

6.87

13.1 to

15.1

29.0 to

33.2

46.3 to

53.5

79.6 to

92.5

123

141 181

209 246

289

8.82

0.90

6.50

16.7

19.6

31.4

34.3

1.7

12.3

2.0

3.2

3.5

–––

14.4

23.2

25.3

11.2

23.6 to

27.4

48.1 to

55.8

77.5 to

90.2

124

147 197

225 275

318 368

431

1.15

2.4 to

2.8

4.9 to

5.7

7.9 to

9.2

12.6 to

15.0

20.0 to

23.0

28.0 to

32.5

37.5 to

44.0

7.24 to

8.31

17.4 to

20.2

35.5 to

41.2

57.2 to

66.5

91.2 to

108 145

166 203

235 272

318

7.85

0.80 to

0.90

1.8 to

2.1

4.0 to

4.5

6.4 to

7.4

5.79 to

6.50

13.1 to

15.1

29.0 to

32.5

46.3 to

53.5

8.82

17.7 to

20.5

39.3 to

44.1

62.8 to

72.5

–––

12.3 to

14.2

29.5 to

34.3

60.9 to

70.6

103

117 167

196 260

304 344

402 491

568

SCr435,

SCM435

1.25 to

1.45

3.0 to

3.5

6.2 to

7.2

10.5 to

12.0

17.0 to

20.0

26.5 to

31.0

35.0 to

41.0

50.0 to

58.0

W10345420

9.05 to

10.4

21.7 to

25.3

44.9 to

52.0

76.0 to

86.7

123

144 192

224 254

296 362

419

G-11

Page 35

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

IMPORTANT■

KiSC issued 06, 2006 A

6. MAINTENANCE

G GENERAL

Period

No.

Item

1 Engine oil Change ★✩ G-15 2 Engine oil filter cartridge Rep lace ★✩ G-15 3 Hydraulic oil filter cartridge Replace ★✩ G-16 4 Transmission oil filter [HST] Replace ★✩ G-16 5 Transmission fluid C ha nge ★✩ G-17 6 Front axle case oil Change ★✩ G-18 7 Front axle pivot A djust ✩ G-32 8 Greasing – ✩ G-19

9 Engine start system Check ✩ G-20, 21 10 Wheel bolt torque Che ck ✩ G-21 11 Battery condition Check ✩ ***** G-25

Air cleaner

element [Double type]

13 Fuel filter element 14 Fan belt Adjust ✩ G-23

15 Clutch Adjust ✩ G-24 16 Brake Adjust ★✩ G-18

17 Radiator hose and clamp

18 Power steering oil line

19 Fuel line

20 HST oil line [HST] 21 Toe-in Adjust ✩ G-28 22 Intake air line 23 Greasing (2WD front wheel hub) ✩ G-32

24 Engine valve clearance Adjust ✩ **** 1-S28

Fuel injection nozzle injection

pressure 26 Injection pump Check ✩ **** @ 1-S69 27 Cooling system Flush ✩ G-34 28 Coolant Change ✩ G-35 29 Fuel system Bleed 30 Clutch housing water Drain G-36 31 Fuse Replace G-36 32 Light bulb Replace G-37

Primary element

Secondary element

Clean ✩ * Replace ✩ ** G-33

Replace ✩ G-33 Clean ✩

Replace ✩ G-32

Check ✩ G-27 Replace Check ✩ G-29 Replace ✩ G-33 Check ✩ Replace ✩ *** G-33 Check ✩ G-29 Replace ✩ G-33

Check ✩ Replace ✩ *** G-33

Check ✩ ****

50 100 200 400 600 800 1500 3000

Service Time Interval

Service as required

year2 years

✩ G-33

Important

Reference

page

G-22

G-23

G-24

G-29

1-S70

G-35

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

• * : Air cleaner should be cleaned more often in dusty conditions than in normal conditions.

• ** : Every year or every 6 times of cleaning.

• *** : Replace only if necessary.

• **** : Consult your local KUBOTA distributor for this service.

• ***** : When the battery is used for less than 100 hours per year, check the battery condition by reading the indication annually.

• 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 requi red maintenance on the en gine according t o the above instruction. Please see the Warranty Statement in detail.

W10357690

G-12

Page 36

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

(Only the Check Points Different from Those for Tractors with CABIN)

Period

No.

Item

Clogging of air conditioner condenser

screen 2 Tension of air conditioner drive belt Adjust ✩ G-30 3 Clogging of inner air filter Clean ✩ G-30 4 Clogging of fresh air filter Clean ✩ G-31 5 Clogging of air conditioner condenser Check ✩ G-31 6 Air conditioner pipes and hoses Check ✩ G-33 7 CABIN isolation cushion Check ✩ G-33 8 Lubricating points Check 9 Washer liquid Check G-37

10 Amount of refrigerant (gas) Check G-38

Clean Daily –

50 100 200 400 600 800 1500 3000

Service Time Interval

Service as required

year2 years

Important

Reference

page

G-37

W11154790

G-13

Page 37

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

7. CHECK AND MAINTENANCE

CAUTION

• Be sure to check and service the tractor on a flat place with engine shut off, the parking brake on and chock the wheels.

[1] DAILY CHECK

To prevent trouble fro m occurring, it i s important to k now the condition o f the tractor. Chec k the following i tems

before starting.

Checking

• Check areas where previous trouble was experienced.

• Walk around the tractor.

1. Check the tire pressure, and check for wear and damage.

2. Check for oil and water leak.

3. Check the engine oil level.

4. Check the transmission fluid level.

5. Check the coolant level.

6. Check the condition of seat belt and ROPS attaching hardware.

7. Check and clean the radiator screen and grill.

8. Check and clean the air condenser screen. (CABIN only)

9. Check the screws and nuts of tires are tight.

10.Check the number plate.

11.Care of danger, warning and caution labels.

12.Clean around the exhaust manifold and the muffler of the engine.

• While sitting in the operator’s seat.

1. Check the brake pedals and clutch pedal.

2. Check the parking brake.

3. Check the steering wheel.

• Turning the key switch.

1. Check the performance of the easy checker lights.

2. Check the lights, turn signal lights, hazard lights and other light equipment. Clean if necessary.

3. Check the performance of the meters and gauges.

• Starting the engine.

1. Check to see that the lights on the easy checker go off.

2. Check the color of the exhaust gas.

3. Check the brakes for proper operation.

G-14

Page 38

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

■

KiSC issued 06, 2006 A

[2] CHECK POINTS OF INITIAL 50 HOURS

Changing Engine Oil

CAUTION

• Before changing oil, be sure to stop the engine.

• Allow engine to cool down sufficiently, oil can be hot and can burn.

1. Start and warm up the engine for approx. 5 minutes.

2. Place an oil pan underneath the engine.

3. To drain the used oil, remove the both drain plugs (1) at the bottom of the engine and drain the oil completely.

4. Screw in the both drain plugs (1).

5. Fill new oil up to upper line on the dipstick (2).

IMPORTANT

• When using an oil of different manufacture or viscosity from the previous one, remove all of the old oil.

• Never mix two different types of oil.

• Use the proper SAE Engine Oil according to ambient temperatures.

• Refer to “LUBRICANTS, FUEL AND COOLANT”. (See page G-9, 10.)

Engine oil capacity (with filter)

L3130 L3430

L3830

L4330 L4630 L5030

G GENERAL

5.7 L

6.0 U.S.qts.

5.0 Imp.qts.

6.7 L

7.1 U.S.qts.

5.9 Imp.qts.

8.2 L

8.7 U.S.qts.

7.2 Imp.qts.

(1) Drain Plug (2) Dipstick (3) Oil Inlet

(A) L3130, L3430, L4330, L4630, L5030 (B) L3830 (C) Oil level is acceptable within this

range.

W10145330

Replacing Engine Oil Filter Cartridge

CAUTION

• Be sure to stop the engine before changing oil filter cartridge.

• Allow engine to cool down sufficiently, oil can be hot and can burn.

1. Remove the oil filter cartridge with the filter wrench.

2. Apply a slight coat of oil onto the new cartridge gasket.

3. To install the new cartridge, screw it in by hand. Over tightening may cause deformation of rubber gasket.

4. After the new cartridge has been replaced, the engine oil normally decrease a li ttle . Thus see that the eng ine oil does not leak through the s eal and be sure to read the oil l evel on the dipstick. Then, replenish the engine oil up to the specified level.

IMPORTANT

• To prevent serious damage to the engine, replacement element must be highly efficient. Use only a KUBOTA genuine filter or its equivalent.

(1) Engine Oil Filter Cartridge

W10148920

G-15

Page 39

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

■

KiSC issued 06, 2006 A

G GENERAL

Replacing Hydraulic Oil Filter / Replacing Transmission Oil Filter [HST Type]

CAUTION

• Be sure to stop the engine before changing the oil filter cartridge.

• Allow engine to cool down sufficiently, oil can be hot and can burn.

1. Remove the drain plugs at the bottom of the tr ansmission case drain the oil completely into the oil pan.

2. After draining reinstall the drain plugs.

3. Remove the oil filter.

4. Put a film of clean transmission oil on the rubber seal of the new filter.

5. [Hydraulic oil filter] Quickly tighten th e filter until it contacts the mounting surface, then tighten it by hand an additional 1/2 turn only. [Transmission oil filter] Quickly tighten th e filter until it contacts the mounting surface, then with a filter wrench, tighten it an additional 1 turn only.

6. After the new filters have be en repla ced, fill th e trans mission oil up to the upper notch on the dipstick.

7. After runni ng the en gine for a few minut es, stop the engin e and check the oil level again, add oil to the prescribed level.

8. Make sure that the transmission fluid does not leak past the seal on the filter.

IMPORTANT

• To prevent serious damage to the hydraulic system, use only a KUBOTA genuine filter.

(1) Drain Plugs (2) Hydraulic Oil Filter (3) Transmission Oil Filter [HST Type] (4) Dipstick (5) Oil Inlet

(A) With Mid-PTO Ty pe (B) Without Mid-PTO Type (C) Oil level is acceptable within this

range.

W1064569

G-16

Page 40

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

■

KiSC issued 06, 2006 A

G GENERAL

Changing Transmission Fluid

CAUTION

• Be sure to stop the engine checking and changing the transmission fluid.

• Allow engine to cool down sufficiently, oil can be hot and can burn.

1. Place an oil pan under the tractor.

2. Remove the drain plugs (1) at the bottom of the transmission case.

3. Drain the transmission fluid.

4. After draining, screw in the drain plugs.

5. Fill new oil from filling port after removing the filling plug (2) up to the upper line of the dipstick (3).

6. After running the engine for a few minutes, stop it and check the oil level again, if low, add oil prescribed level.

IMPORTANT

• Use only multi-grade transmission oil. Use of other oils may damage the transmission or hydraulic system. Refer to “LUBRICANTS, FUEL AND COOLANT”. (See page G-9, 10.)

• Never work the tractor immediately after changing the transmission oil. Keeping the engine at medium speed for a few minutes to prevents damage to the transmission.

• Do not mix different blands oil together.

42 L

11.1 U.S.gals.

9.2 Imp.gals. 43 L

11.4 U.S.gals.

9.5 Imp.gals. 45 L

11.9 U.S.gals.

9.9 Imp.gals.

Transmission fluid capacity

L3130, L3430

L3830, L4330, L4630

L5030

(1) Drain Plug (2) Filling Plug (3) Dipstick

(A) With Mid-PTO Type (B) Without Mid-PTO Type (C) Oil level is acceptable within this

range.

W1068655

G-17

Page 41

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

Changing Front Axle Case Oil [4WD Type]

CAUTION

• Be sure to stop the engine before changing the front axle case oil.

• Allow engine to cool down sufficiently, oil can be hot and can burn.

1. Remove the right and left drain plugs (3) and filling plug (2) at the front axle case and drain the oil completely.

2. After draining, reinstall the drain plugs (3).

3. Remove the right and left check plugs (1).

4. Fill new oil from filling port with specified amount of oil. Refer to “LUBRICANTS, FUEL AND COOLANT”. (See page G-9, 10.)

5. Reinstall the filling plug (2) and check plug (1).

Front axle case oil capacity

L3130 L3430 L3830

L4330 L4630 L5030

6.5 L

6.9 U.S.qts.

5.7 Imp.qts.

9.0 L

9.5 U.S.qts.

7.9 Imp.qts.

(1) Check Plug (2) Filling Plug

(3) Drain Plug

W10300640

Adjuting Brake Pedal Free Travel

CAUTION

• Stop the engine and chock the wheels before checking brake pedal.

1. Release the parking brake.

2. Slightly dep ress th e br ake pe dal s and m eas ure f re e trav el (L) at top of pedal stroke.

3. If the measurement is not within the factory specifications, loosen the lock nut (1) and turn the turnbuckle (2) to adjust the rod length within acceptable limits.

4. Retighten the lock nut (1) securely. Keep the free travel in the right and left brake pedals equal.

Brake pedal free travel

“L”

(1) Lock Nut (2) Turnbuckle

Factory spec.

L : Free Travel

15 to 20 mm

0.59 to 0.79 in.

W10293350

G-18

Page 42

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

KiSC issued 06, 2006 A

[3] CHECK POINTS OF EVERY 50 HOURS

Greasing

1. Apply a grease to the following position as figures.

• 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.

• When apply a grease to the front axle support, remove the breather plug and apply a grease until grease overflows from breather plug. After greasing reinstall the plug.

G GENERAL

(1) Grease Fitting

(Knuckle Shaft RH, LH)

(2) Grease Fitting (Front Wheel Case

Support RH, LH) (3) Grease Fitting (Front Axle Support) (4) Breather Plug (5) Grease Fitting (Lift Cylinder)

(6) Grease Fitting (Top Link) (7) Grease Fitting (Lifting Rod RH) (8) Grease Fitting (Toplink Bracket) (9) Battery Terminal

[A] 2WD Type [B] L4330, L4630, L5030

W10308650

G-19

Page 43

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

Oiling

CAUTION

• Be sure to stop the engine and remove the key before oiling.

(1) Hand Throttle Cable (2) Foot Throttle Cable

(GST/Manual Transmission Type)

W1072984

Checking Engine Start System (GST/Manual Transmission Type)

CAUTION

• Do not allow anyone near the tractor whil e testing.

• If the tractor does not pass the test, do not operate the tractor.

■ Preparation before testing.

1. Place all control levers in the “NEUTRAL” position.

2. Set the parking brake and stop the engine.

■ Test 1 : Switch for the shuttle shift lever.

1. Sit on operator’s seat.

2. Shift the shuttle shift lever to the forward or reverse position.

3. Depress the clutch pedal fully.

4. Disengage the PTO clutch control lever.

5. Turn the key to “START” position.

6. The engine must not crank.

■ Test 2 : Switch for the PTO clutch control lever.

1. Sit on operator’s seat.

2. Engage the PTO clutch control lever.

3. Depress the clutch pedal fully.

4. Shift the range gear shift lever to the neutral position.

5. Turn the key to “START” position.

6. The engine must not crank.

■ If it cranks at the test 1 o r 2, adjust or repla ce the required safety switch.

■ Test 3 : Switch for the operator’s seat.

1. Sit on operator’s seat.

2. Start the engine.

3. Engage the PTO clutch control lever.

4. Stand up. (Do not get off the machine.)

5. The engine must shut off after approximately 1 second.

■ If it does not stop, adjust or replace the required safety switch.

(1) Shuttle Shift Lever (2) Clutch Pedal

(3) PTO Clutch Control Lever

W10312010

G-20

Page 44

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

Checking Engine Start System (HST Type)

1. Place all control levers in the “NEUTRAL” position.

2. Set the parking brake and stop the engine.

■ Test 1 : Switch for the speed control lever.

1. Sit on operator’s seat.

2. Depress the speed control pedal to the desired direction.

3. Depress the clutch pedal fully.

4. Disengage the PTO clutch control lever.

5. Turn the key to “START” position.

6. The engine must not crank.

■ Test 2 : Switch for the PTO clutch control lever.

1. Sit on operator’s seat.

2. Engage the PTO clutch control lever.

3. Depress the clutch pedal fully.

4. Place the speed control pedal to the neutral position.

5. Turn the key to “START” pos iti on .

6. The engine must not crank.

■ Test 3 : Switch for the clutch pedal.

1. Sit on operator’s seat.

2. Disengage the PTO clutch control lever.

3. Place the speed control pedal to the neutral position.

4. Release the clutch pedal.

5. Turn the key to “START” pos iti on .

6. The engine must not crank.

■ If it cranks at the test 1, 2 or 3, adjust or replace the required safety switch.

■ Test 4 : Switch for the operator’s seat.

1. Sit on operator’s seat.

2. Start the engine.

3. Engage the PTO clutch control lever.

4. Stand up. (Do not get off the machine.)

5. The engine must shut off after approximately 1 second.

■ If it does not stop, adjust or replace the required safety switch.

(1) Speed Control Pedal (2) Clutch Pedal

(3) PTO Clutch Control Lever

W10739440

Checking Wheel Mounting Screws and Nuts Tightening Torque

CAUTION

• Never operate tractor with a loose rim, wheel, or axle.

1. Check wheel sc re ws an d n uts reg ula rl y especially when new. I f there are loosened, tighten as follows.

Front wheel mounting nuts

Tightening torque

Rear wheel mounting screws and nuts

(1) Front Wheel Mounting Nut (2) Rear Wheel Mounting Screw and

Nut

137 N·m 14 kgf·m 100 ft-lbs

215 N·m 22 kgf·m 166 ft-lbs

W1030725

G-21

Page 45

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

IMPORTANT■

KiSC issued 06, 2006 A

[4] CHECK POINTS OF EVERY 100 HOURS

Changing Engine Oil

1. See page G-15.

Adjusting Brake Pedal

1. See page G-18.

Cleaning Air Cleaner Primary Element

1. Remove the air cleaner cover and primary element.

2. Clean the primary element :

- When dry dus t adheres to the element, blow compressed ai r from the inside turning the element. Pressure of compressed air must be under 205 kPa (2.1 kgf/cm

- When car bon or o il adhere s 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 six times of cleaning, whichever comes first.

, 30 psi).

G GENERAL

W10320350

W1075566

• Check to see if the evacuator valve is blocked with dust.

• The air cleaner uses a dry element, never apply oil.

• Do not run the engine with filter element removed.

• Be sure to refi t the cover with the arrow ↑ (on the rear of cover) upright. I f the cover is improperly fit ted, evacuator valve will not function and dust will adhere to the element.

• Do not touch the secondary element except in cases where replacing is required. See “Replacing Air Cleaner Sec ondary Element” in Every 1 Year section. (See page G-33.)

■ Evacuator Valve

Open the evacuator valve (4) once a week under ordinary

conditions or daily when used in a dusty place to get rid of large particles of dust and dirt.

(1) Secondary (Safety) Element (2) Primary Element

(3) Cover (4) Evacuator Valve

W1076669

G-22

Page 46

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

IMPORTANT■

KiSC issued 06, 2006 A

G GENERAL

Cleanin g Fu el Filter

This job should not be done in the field, but in a clean place.

1. Close the fuel fil ter cock (1).

2. Unscrew the screw rin g and remove the fuel filter b owl (2), and rinse the inside with kerosene.

3. Take out the filter element (4) and dip it in the kerosene to rinse.

4. After cleaning , reassemble the fuel filter, keepi ng out dust and dirt.

5. Bleed the fuel system. (See page G-35.)

• If dust and dirt 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 and element bowl periodically.

(1) Fuel Cock (2) Fuel Filter Bowl (3) O-ring

(4) Filter Element (5) Spring (6) Screw Ring

A : Close

W1078193

Adjusting Fan Belt Tension

CAUTION

• Be sure to stop the engine before checking fan belt tension.

1. Stop the engine and remove the key.

2. Apply moderate thumb pressure to belt between pulleys.

3. If tension is inc orrect, loosen the alternat or 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 the factory specifications.

4. Replace fan belt if it is damaged.

A deflection of between 7

Fan belt tension Factory spec.

(1) Alternator Mounting Bolt A : Check the belt tension

B : To Tighten

to 9 mm (0.28 to 0.34 in.) when the belt is pressed in the middle of the span.

W10326270

G-23

Page 47

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

■

KiSC issued 06, 2006 A

G GENERAL

Checking Fuel Line

CAUTION

• Stop the engine when attempting the check and change prescribed below.

• Remember to check t he fuel line periodically. The fuel line is subject to wear and aging, fuel may leak out onto the running engine, causing a fire.

1. Check to see that all line and hose clamp are tight and not damaged.

2. If hoses and clamps are found worn or damaged, replace or repair them at once.

3. The fuel lin e is m ade o f r ub ber and a ges r eg ar dles s of peri od of service. Replace the fuel pipe together with the clamp every two years and securely tighten.

4. However if the fuel pipe and clamp are found damaged or deteriorated earlier than two years, then change or remedy.

5. After the fuel l ine and clamp hav e been changed , bleed the fuel system.

IMPORTANT

• When the fuel line is disconnected for change, close both ends of the fuel line with a piece of clean cloth or paper to prevent dust and dirt from entering. Entrance of dust and dirt causes malfunction of the fuel injection pump. In addition, particular care must be take n not to admit dust and dirt into the fuel pump.

(1) Fuel Hose (2) Clamp

W10342570

Adjusting Clutch Pedal Free Travel

CAUTION

• When checking, park the tractor on flat ground, apply the parking brake, stop the engine and remove the key.

1. Slightly depress the clutc h p edal and measure free tr avel “L” at top of clutch pedal.

2. If the measurement is not within the factory specifications, loosen the lock nut (2), remove the clevis pin (3) adjust the length of rod (1) within acceptable limits.

3. Retighten the lock nut (2) and split the cotter pin (4).

Clutch pedal free travel “L” on top clutch pedal

(1) Clutch pedal Rod (2) Lock Nut (3) Clevis Pin

Factory spec.

(4) Cotter Pin

L : Free Travel

20 to 30 mm

0.78 to 1.18 in.

W1032993

G-24

Page 48

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

■

KiSC issued 06, 2006 A

G GENERAL

Checking Battery Condition

DANGER

To avoid the possibility of battery explosion: For the refillable type battery, follow the instructions below.

• 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 ma y shorten the batte ry’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.

CAUTION

• Never remove the vent plugs while the engine is running.

• Keep electrolyte away fr om eyes, h and s and clothe s. If you are spattered with it, wash it away completely with water immediately and get medical attention.

• Wear eye protection and rubber gloves when working around battery.

NOTE

• 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.

1. Mishandling the battery shortens the service life and adds to maintenance costs.

2. The original batter y is maintenance free type battery, bu t need some servicing. If the battery is weak, the engine is difficult to start and the lights be dim. It is important check the battery periodically.

3. Check the battery condition by reading the indicator. State of indicator display. Green: Specify gravity of electrolyte and quality of electrolyte are both in good condition. Black: Need charging battery. White: Need charging battery.

(1) Battery (2) Indicator

W1095602

G-25

Page 49

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

■ Battery Charging

CAUTION

• When the battery is being activated, hydrogen and oxygen gases in the battery are extremely explosive. Keep open sparks and flames away from the battery at all times, especially when charging the battery.

• When charging battery, remove battery vent plugs.

• 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.

• Never check battery charge by placing a metal object across the posts. Use a voltmeter or hydrometer.

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 tur ns green from black.

4. When exchanging an old battery into new one, use battery of equal specification shown in table 1.

Table 1

Tractor

model L3130

L3430 L3830

L4330 L4630 L5030

Battery

Type

75D26R 12 52 123 490 6.5

80D26R 12 55 133 582 6.5

Volt

(V)

Capacity at 5 H.R.

(A.H.)

Reserve

Capacity

(min.)

Cold

Cranking

Amps

Normal

Charging

Rate (A)

■ Direction for Storage

1. When storing the tractor for long periods of time, 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 se asons and once every six months in cold seasons.

(1) Battery

W1033925

G-26

Page 50

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

[5] CHECK POINTS OF EVERY 200 HOURS

Replacing Engine Oil Filter Cartridge

1. See page G-15.

Replacing Hydraulic Oil Filter / Replacing Transmission Oil Filter [HST Type]

1. See page G-16.

Checking Radiator Hose and Hose 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.

■ Precaution at Overheating

Take the following a ctions in the even t the coolant temper ature

be nearly or more than the boiling point, what is called “Overheating”.

1. Stop the machine oper ation in a sa fe 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 blown out.

4. Checking that t here gets no da nger such as burn, get ri d of the causes of overheating according to the manual, see “Troubleshooting” section, and then, start again the engine.

(1) Radiator Hose (2) Clamp

G GENERAL

W10344210

W10344720

W10347370

G-27

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

IMPORTANT■

KiSC issued 06, 2006 A

G GENERAL

Adjusting Toe-in

1. Park the tractor on the flat place.

2. Inflate the tires to the specified pressure.

3. Turn steering wheel so front wheels are in the straight ahead position.

4. Lower the implement, lock the parking brake and stop the engine.

5. Measure distance between tire beads at front of tire, hub height.

6. Measure distance between tire beads at rear of tire, hub height.

7. Front distance should be 2 to 8 mm (0.079 to 0.315 in.) less than rear distance.

8. If the measurement is not within the factory specifications, adjust by changing the tie-rod length .

Toe-in (B - A) Factory spec.

2 to 8 mm

0.079 to 0.315 in.

■ Adjusting

1. Detach the snap ring (1).

2. Loosen the tie-rod nut (2 ) and turn the tie- rod joint (3) to ad just the tie-rod length until the proper toe-in measurement is obtained.

3. Retighten the tie-rod nut (2).

4. Attach the snap ring (1) of the tie-rod joint.

166.7 to 196.1 N·m

Tightening torque Tie-rod lock nut

17.0 to 20.0 kgf·m 123 to 145 ft-lbs

• A right and left tie-rod joint is adjusted to the same length.

(1) Snap Ring (2) Tie-rod Nut (3) Tie-rod Joint

(A) Wheel to Wheel Distance at front (B) Wheel to Wheel Distance at rear (C) Front

W1082751

G-28

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KiSC issued 06, 2006 A

G GENERAL

Checking HST Oil Line [HST Type] / Checking Power Steering Line

1. Check to see th at all lines and hose clamps are tight and not damaged.

2. If hoses and clam ps are fou nd worn or damaged , repl ace repai r them at once.

(1) HST Oil Line (2) Power Steering Pressure Hoses

(A) HST Type

W1085565

Checking Intake Air Line

1. Check to see that hose and hose clamps are tight and not damaged.

2. If hose and clamps are found worn or damaged, replace or repair them at once.

(1) Hose (2) Hose Clamp

W10345660

G-29

Page 53

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KiSC issued 06, 2006 A

G GENERAL

Adjusting Air Conditioner Belt Tension (Cabin Model)

CAUTION

• Be sure to stop the engine before checking air conditioner belt tension.

1. Stop the engine and remove the key.

2. Apply 98 N (10 kgf, 22 lbs) pressure to the belt between the pulleys.

3. If tension is incorrect, adjust the belt tension.

4. If belt is damaged, replace it.

A deflection of between

Air conditioner belt tension

Factory spec.

10 to 12 mm (0.39 to 0.47 in.) when the belt is pressed in the middle of the span

(1) Adjusting Bolt (2) Nut

A : Deflection

W1019789

Cleaning Inner Air Filter (Cabin Model)

1. Remove the i nner fil ter, a nd blow a ir from the d irecti on oppo site to the filter’s normal air flow.

(Reference)

• Detach and attach the push-rivet (2) as follows.

- Detaching procedure (A)

Push in the center rivet (a) and pull out the push-rivet assembly (b).

- Attaching procedure (B)

Pull out the center rive t ( c), attac h th e pu sh-rivet assembly (d) and push up the center-rivet (e).

(1) Inner Air Filter (2) Push-rivet (3) Center-rivet

a : Push in center-rivet b : Pull out push-rivet assembly c : Pull out center-rivet d : Attach push-rivet assembly e : Push up center-rivet

W1118812

G-30

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

IMPORTANT■

KiSC issued 06, 2006 A

G GENERAL

Cleaning Air Filter (Cabin Model)

■ Fresh Air Filter

1. Remove the knob bolts (3) and pull out the fresh air filter (1).

2. Blow air from the opposite direction to the filter’s normal air flow.

• 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.

• Do not use gasoline, thinn er or similar chemicals to clean the filter as damage to the filter may occur.

• If may also cause an unpleasant odor in the CABIN when the system is used next.

• Do not hit the filter. If the filter becomes deformed, dust ma y enter into the air-conditioner, w hich ma y cause d amage and malfunction.

(1) Fresh Air Filter (2) Cover (3) Knob Bolt

A : Air Inlet Port B : Air Conditioner Air Flow

W1019336

Checking Air Conditioner Condenser (Cabin Model)

1. Check the air conditioner condenser (1).

2. If dust and dirt, wash off all dir t and dust fr om the c ondenser (1) with a soft brush, use care not to damage or bend the fins.

(1) Air Conditioner Condenser

W1019699

G-31

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NOTE■

KiSC issued 06, 2006 A

[6] CHECK POINTS OF EVERY 400 HOURS

Changing Transmission Fluid

1. See page G-17.

Changing Front Axle Case Oil [4WD Type]

1. See page G-18.

Replacing Fuel Filter Element

1. See page G-23.

Lubricating Grease Fitting [2WD]

1. Detach the cover, and apply bearing grease.

(1) Front Wheel Hub Cover

G GENERAL

W10365120

W10365590

W1085936

W1085994

[7] CHECK POINTS OF EVERY 600 HOURS

Adjust Front Axle Pivot

1. Loosen the lock nut (2), tighten the adju sting screw (1) all the way, and then loosen the adjusting screw (1) by 1/6 turn.

2. Retighten the lock nut (2).

• If the axle pivot pin adjustment is not correct, front wheel vibration can occur causing vibration in the steering wheel.

(1) Adjusting Screw (2) Lock Nut

[8] CHECK POINTS OF EVERY 800 HOURS

Checking Valve Clearance

1. See page 1-S28.

[9] CHECK POINTS OF EVERY 1500 HOURS

Checking Fuel Injection Nozzle Injection Pressure

1. See page 1-S70.

W1036668

W1036805

W1036874

[10] CHECK POINTS OF EVERY 3000 HOURS

Checking Injection Pump

1. See page 1-S69.

G-32

W1036957

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KiSC issued 06, 2006 A

[11] CHECK POINTS OF EVERY 1 YEAR

Replacing Air Cleaner Primary Element and Secondary Element

1. Replace the both primary and secondary elements. Refer to “Cleaning Air Cleaner Primary Element”. (See page G-22.)

Checking Air Conditioner Pipe and Clamp

1. Check to see th at all lines and hose clamps are tight and not damaged.

2. If hoses (1) an d clamps are fo und worn or da maged, re place or repair them at once.

(1) Hose

Checking Cabin Isolation Cushion

1. Check the isolation cushion (1) for any breakage or fatigue.

2. Replace them if they have deteriorated.

(1) Isolation Cushion F : Front Side

G GENERAL

W1037077

W1021331

R : Rear Side

[12] CHECK POINTS OF EVERY 2 YEARS

Replacing Fuel Hose

1. Replace the fuel hoses and clamps, if necessary. Refer to “Checking Fuel Line”. (See page G-24.)

Replacing Intake Line

1. Replace the intake hoses and clamps, if necessary. Refer to “Checking Intake Air Line”. (See page G-29.)

Replacing HST Oil Line

1. Replace the hoses and clamps. Refer to “Checking HST Oil Line and Power Steering Line”. (See page G-29.)

Replacing Power Steering Hose

1. Replace the hoses and clamps. Refer to “Checking HST Oil Line and Power Steering Line”. (See page G-29.)

Replacing Radiator Hose (Water Pipes)

1. Replace the hoses and clamps. Refer to “Checking Radiator Hose and Hose Clamp”. (See page G-27.)

W1021413

W1037148

W1037203

W1037296

W1037361

W1037429

G-33

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■

KiSC issued 06, 2006 A

G GENERAL

Flushing Cooling System and Changing Coolant

CAUTION

• Do not remove the radiator cap when the engine is hot. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely.

1. Stop the engine and let cool down.

2. To drain the coolant, open the radiator drain plug (3) and remove the radiator cap (1) . The radiator cap (1) must be removed to completely drain the coolant.

3. After all coolant is drained, close the drain plug (3).

4. Fill with clean water and cooling system cleaner.

5. Follow directions of the cleaner instruction.

6. After flushing, fill with clean water and anti-freeze until the coolant level is just below the port. Install the radiator cap (1) securely.

7. Fill with coolant up to “FULL” mark on the recovery tank.

8. Start and operate the engine for few minutes.

9. Stop the en gine and let cool. Check c oolant level of recovery tank (2) and add coolant if necessary.

IMPORTANT

• Do not start engine without coolant.

• Use clean, fresh water and anti-freeze to fill the radiator and recovery tank.

• When the anti-freeze is mixed with water, the anti-freeze mixing ratio must be less than 50 %.

• Securely tighten radiator cap. If the cap is loose or improperly fitted, water may leak out and the engine could overheat.

• Refer to “LUBRICANTS, FUEL AND COOLANT”. (See page G-9, 10.)

6.0 L

6.3 U.S.qts.

5.3 Imp.qts.

7.2 L

7.6 U.S.qts.

6.3 Imp.qts.

7.5 L

7.9 U.S.qts.

6.6 Imp.qts.

8.7 L

9.2 U.S.qts.

7.7 Imp.qts.

8.0 L

8.5 U.S.qts.

7.0 Imp.qts.

9.2 L

9.7 U.S.qts.

8.1 Imp.qts.

Coolant capacity (with recovery tank)

L3130 L3430 (ROPS)

L3430 (CABIN)

L3830 L4330 (ROPS) L4630 (ROPS)

L4330 (CABIN) L4630 (CABIN)

L5030 (ROPS)

L5030 (CABIN)

(1) Radiator Cap (2) Recovery Tank (3) Drain Plug

G-34

A : FULL B : LOW

W1037510

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NOTE■

IMPORTANT■

KiSC issued 06, 2006 A

G GENERAL

Flushing Cooling System and Changing Coolant (Continued)

■ Anti-Freeze

If coolant freezes, it can damage the cylinders and radiator. It is necessary, if the ambi ent temperature falls below 0 °C (32 °F), to remove coolant after operating or to add anti-freeze to it.

1. There are two types of anti-freeze available ; use the permanent

type (PT) for this engine.

2. Before adding anti-freeze for the first time, clean the radiator

interior by pouring fresh water and draining it a few times.

3. The procedure for mixing of water and anti-freeze differs

according to the make of the anti-freeze and the ambient

temperature, basically is should be referred to SAE J1034

standard, more specifically also to SAE J814c.

4. Mix the anti-freeze with water, and ten fill in to the radiator.

Vol % Anti-freeze

40 −24 −12 106 222 50 −37 −34 108 226

*At 760 mmHg pressure (atmospheric). A higher boiling points is

Freeze Point B oiling Point*

°C °F °C °F

obtained by using a radiator pressure cap which permits the development of pressure within the cooling system.

[13] OTHERS

• The above data represent industry standards that necessitate a minimum glyc ol content in the concentrated anti-freeze.

• When the coolant level drops due to evaporation, add water only. In case o f leakage, add anti-freeze and water in the specified mixing ratio.

• Anti-freeze absorb s moist ure. Kee p un used a nti-f re ez e in a tightly sealed container.

• Do not use radiator cleaning agents when anti-freeze has been added to the coolant. (Anti-freeze contains an anticorrosive agent, which will react with the radiato r cleaning agent forming sludge which will affect the engine parts.)

W10385910

Bleeding Fuel System

Air must removed :

1. When the fuel filter or lines are removed.

2. When tank is completely empty.

3. After the tractor has not been used for a long period of time. Bleeding procedure is as follows.

1. Fill the fuel tank with fuel, and open the fuel cock (1).

2. Open the air vent cock (2) on the fuel injection pump.

3. Start the engine and run for about 30 seconds, and then stop the engine.

4. Close the a ir vent cock.

• Always close the air vent cock except for bleeding fuel lines. Otherwise, engine runs irregularly or stalls frequently.

(1) Fuel Cock (2) Air Vent Cock

A : Close B : Open

W1039026

G-35

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

IMPORTANT■

KiSC issued 06, 2006 A

G GENERAL

Draining Clutch Housing Water

• The tractor is equipped with split pin plug (1) under the clutch housing.

• After operating in rain, snow or tractor has been washed, water may get into the clutch housing.

1. Check it by pushing in the split pin (1).

2. If water ent ers into the clutch hous ing, remove the plug ( 1) and drain the water, then reinstall the plug.

(1) Split Pin (Plug)

W1039199

Replacing Fuse

1. The tractor electri cal system is protec ted fro m potenti al damage by fuses. A blown fuse indicates that there is an overload or short somewhere in the electrical system.

2. If any of the fuses sho uld blow, replace with a new one of the same capacity.

• 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 troubleshooting section of this manual. If any of them should blow, replace with a new one of the same capacity.

■ Protected Circuit

Fuse No. Capacity (A) Protected circuit ROPS CABIN

1 7.5 Alternator ✩✩ 2 15 Head lights ✩✩ 315Hazard ✩ – 4 5 Panel ✩✩ 5 5 T/M controller 1 (GST Type) ✩✩ 6 7.5 Work light ✩ – 7 5 Brake lamp switch ✩ – 8 10 T/M controller 2 (GST Type) ✩✩

9 5 Key stop ✩✩ 10 30 Starter relay ✩✩ 11 20 Hazard – ✩ 12 10 Dome lamp – ✩ 13 15 A/C blower – ✩ 14 10 Radio casette – ✩ 15 20 Cigar lighter – ✩ 16 7.5 A/C compressor – ✩ 17 30 Wiper – ✩ 18 15 Flasher – ✩ 19 15 Work light – ✩ 20 30 Defogger – ✩

Slow blow

fuse

Check circuit against wrong battery connection.

✩✩

(A) ROPS Model (B) CABIN Model

W1039315

G-36

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KiSC issued 06, 2006 A

G GENERAL

Replacing Light Bulb

1. Head lights and rear combination lights : 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 lights 25 W / 25 W Tail light 8 W Hazard and turn signal light 27 W – Hazard and turn signal light (rear) – 23 W Hazard and turn signal light (front) – 23 W Side marker light – 10 W Room light – 10 W Work light – 27 W Instrument panel light 1.1 W

ROPS CABIN

Capacity

Lubricating Points

(1) Door Hinge (2) Rear Window Hinge

W1039659

W1120093

Adding Washer Liquid

1. Add a proper amount of automobile washer liquid.

Tank capacity

(1) Washer Liquid Tank

2.0 L

0.53 U.S.gals.

0.44 Imp.gals.

W1120170

G-37

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■

KiSC issued 06, 2006 A

G GENERAL

Checking Refrigerant (Gas)

CAUTION

• Liquid contact with eyes or skin may cause frostbite.

• In the event of a leakage, wear safety goggles. Escaping refrigerant can cause severe injuries to eyes.

• In contact with a flame, R134a refrigerant gives a toxic gas.

• Do not disconnect any part of the refrigeration circuit of the air conditioning system.

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, inspect and charge. (See page 10S21.)

■ Checking Procedure

1. Run the air-conditioner in the following conditions.

-1

- Engine speed : About 1500 min

(rpm)

- Temperature control lever : Maximum cooling position

(leftmost)

- Fan switch : Highest blow (HI)

- Air-conditioner switch : ON

2. Look into t he sight glass (1) to see if the refriger ant is flowing through its circuit.

IMPORTANT

• Charge only with R134a not R12 refrigerant (gas).

(1) Sight Glass (A) Proper : Little or no air bubbles in

the refrigerant flow.

(B) Low : Lots of air bubbles in the

refrigerant flow (air bubbles or foam passing continuously).

Colorless and transparent.

W1120282

G-38

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KiSC issued 06, 2006 A

8. SPECIAL TOOLS

[1] SPECIAL TOOLS FOR ENG IN E

Special Use Puller Set

Code No: 07916-09032 Application: Use exclusively for pulling out bearing, gears and other

Piston Ring Compressor

Code No: 07909-32111 Application: Use exclusively for pushing in the piston with piston

G GENERAL

parts with ease.

W10240500

rings into the cylinder.

W10241000

Piston Ring Tool

Code No: 07909-32121 Application: Use exclusively for removing or installing the piston ring

with ease.

W10241500

Diesel Engine Compression Tester

Code No: 07909-30208 (Assembly) 07909-31251 (G)

07909-30934 (A to F) 07909-31271 (I) 07909-31211 (E and F) 07909-31281 (J) 07909-31231 (H)

Application: Use to measure diesel engine compression and

diagnostics of need for major overhaul.

(1) Gauge (2) L Joint (3) Adaptor A (4) Adaptor B (5) Adaptor C (6) Adaptor E

(7) Adap tor F (8) Adap tor G (9) Adap tor H

(10) Adaptor I

(11) Adaptor J

W10242000

G-39

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KiSC issued 06, 2006 A

G GENERAL

Oil Pressure Tester

Code No: 07916-32032 Application: Use to measure lubricating oil pressure.

(1) Gauge (2) Cable (3) Threaded Joint (4) Adaptor 1

(5) Adaptor 2 (6) Adaptor 3 (7) Adaptor 4 (8) Adaptor 5

Valve Seat Cutter

Code No: 07909-33102 Application: Use to reseat valves. Angle: 0.785 rad (45°)

0.262 rad (15°)

Diameter: 28.6 mm (1.126 in.) 38.0 mm (1.496 in.)

31.6 mm (1.244 in.) 41.3 mm (1.626 in.)

35.0 mm (1.378 in.) 50.8 mm (2.000 in.)

W10243180

W10244580

Radiator Tester

Code No: 07909-31551 Application: Use to check of radiator cap p ressure, and leaks fr om

cooling system.

W10245320

Connecting Rod Alignment Tool

Code No: 07909-31661 Application: Use to check the connecting rod alignment. Applicable: Connecting rod big end I.D. range 30 to 75 mm (1.18 to 2.95 in.) dia.

Connecting rod length 65 to 300 mm (2.56 to 11.81 in.)

W10245830

Nozzle Tester

Code No: 07909-31361 Application: Use to check the fuel injection pressure and spray

pattern of nozzle.

Measuring: 0 to 50 MPa

range (0 to 500 kgf/cm

, 0 to 7000 psi)

W10246530

G-40

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KiSC issued 06, 2006 A

G GENERAL

Plastigage

Code No: 07909-30241 Application: Use to check the oil clearance between crankshaft and

bearing, etc.

Measuring: Green.... 0.025 to 0.076 mm (0.001 to 0.003 in.)

range Red ....... 0.051 to 0.152 mm (0.002 to 0.006 in.)

Blue....... 0.102 to 0.229 mm (0.004 to 0.009 in.)

W10247190

Red Check

Code No: 07909-31371 Application: Use to check cracks on cylinder head , cylinder block,

etc.

W10249090

Crankshaft Nut Socket 46

Code No: 07916-30821 Application: Use exclusively for removing or installing the

crankshaft nut.

W10443610

Socket Wrench 46

Code No: 07916-30901 Application: Use exclusively for removing or installing the

crankshaft nut.

W10444600

Auxiliary Socket For Fixing Crankshaft Sleeve

Code No: 07916-32091 Application: Use to fix the crankshaft sleeve of the diesel engine.

W10771140

G-41

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NOTE■

KiSC issued 06, 2006 A

• The following special tools are not provided, so make them referring to the figure. Valve Guide Replacing Tool

Application: Use to press out and press fit the valve guide.

A 20 mm dia. (0.79 in. dia.) B 11.7 to 11.9 mm dia. (0.460 to 0.468 in. dia.) C 6.5 to 6.6 mm dia. (0.256 to 0.259 in. dia.) D 225 mm (8.86 in.) E 70 mm (2.76 in.) F 45 mm (1.77 in.) G 25 mm (0.98 in.) H 5 mm (0.197 in.)

I 6.7 to 7.0 mm dia. (0.263 to 0.275 in. dia.) J 20 mm dia. (0.787 in. dia.)

K 12.5 to 12.8 mm dia. (0.492 to 0.504 in. dia.)

L 8.9 to 9.1 mm (0.350 to 358 in.) C1 Chamfer 1.0 mm (0.039 in.) C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfe r 0.3 mm (0.012 in.)

Injection Pump Pressure Tester

Application: Use to check fuel tightness of injection pumps.

Pressure gauge full scale : More than 29.4 MPa (300 kgf/cm

psi) B Copper gasket C Flange (Material : Steel) D Hex. nut 27 mm (1.06 in.) across the plat E Injection pipe FPF 1/2 G 5 mm (0 .2 0 in.) H 17 mm dia. (0.67 in. dia.)

I 8 mm dia. (0.31 in. dia.) J 1.0 mm (0.039 in.)

K 17 mm dia. (0.67 in. dia.)

L 6.10 to 6.20 mm dia. (0.2402 to 0.2441 in. dia.)

M 8 mm (0.31 i n .)

N 4 m m ( 0 .1 6 i n .) O 11.97 to 11.99 mm dia. (0.4713 to 0.4721 in. dia.) PPF 1/2 Q 23 mm (0.91 in.) R 17 mm (0.67 in.) S 4 mm (0.16 in.) T 12.00 to 12.02 mm dia. (0.4724 to 0.4732 in. dia.) U 100 mm (3.94 in.) V M12 × P1.5

a Adhesive application b Fillet welding on the enter circumference

G GENERAL

W10250170

, 4267

W10252400

G-42

Page 66

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KiSC issued 06, 2006 A

G GENERAL

Bushing Replacing Tools

Application: Use to press out and to press fit the bushing. (1) For small end bushing

A 162 mm (6.38 in.) B 35 mm (1.38 in.) C 27 mm (1.06 in.) D 35 mm dia. (1.38 in. dia.) E 27.90 to 27.95 mm dia. (1.098 to 1.100 in. dia.) F 25.00 to 25.01 mm dia. (0.984 to 0.985 in. dia.)

(2) For idle gear bushing

A 175 mm (6.89 in.) B 40 mm (1.57 in.) C 38 mm (1.49 in.) D 45 mm dia. (1.77 in. dia.) E 41.90 to 41.95 mm dia. (1.650 to 1.652 in. dia.) F 37.95 to 37.97 mm dia. (1.494 to 1.495 in. dia.)

W10255000

Flywheel Stopper

Application: Use to loosen and tighten the flywheel screw.

A 200 mm (7.87 in.) B 20 mm (0.79 in.) C 30 mm (1.18 in.) D 8 mm (0.31 in.) E 10 mm dia. (0.39 in. dia.)

W10259480

G-43

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KiSC issued 06, 2006 A

G GENERAL

Crankshaft Bearing 1 Replacing Tool

Application: Use to press out and press fit the crankshaft bearing 1.

1. Extracting tool (D1503, D1703, V2203)

A 135 mm (5.31 in.) B 72 mm (2.83 in.) C R40 mm (R1.57 in.) D 10 mm (0.39 in.) E 20 mm (0.79 in.) F 20 mm dia. (0.79 in. dia.) G 56.8 to 56.9 mm dia. (2.236 to 2.240 in. dia.) H 51.8 to 51.9 mm dia. (2.039 to 2.043 in. dia.)

2. Inserting tool (D1503, D1703, V2203)

A 130 mm (5.12 in.) B 72 mm (2.83 in.) C R40 mm (R1.57 in.) D 9 m m ( 0 .3 5 i n .) E 4 mm (0.16 in.) F 20 mm (0.79 in.) G 20 mm dia. (0.79 in. dia.) H 68 mm dia. (2.68 in. dia.)

I 51.8 to 51.9 mm dia. (2.039 to 2.043 in. dia.) J 56.8 to 56.9 mm dia. (2.236 to 2.240 in. dia.)

1. Extracting tool (D1803, V2403)

A 135 mm (5.31 in.) B 72 mm (2.83 in.) C R40 mm (R1.57 in.) D 10 mm (0.39 in.) E 20 mm (0.79 in.) F 20 mm dia. (0.79 in. dia.) G 64.8 to 64.9 mm dia. (2.551 to 2.555 in. dia.) H 59.8 to 59.9 mm dia. (2.354 to 2.358 in. dia.)

2. Inserting tool (D1803, V2403)

A 130 mm (5.12 in.) B 72 mm (2.83 in.) C R40 mm (R1.57 in.) D 9 m m ( 0 .3 5 i n .) E 4 mm (0.16 in.) F 20 mm (0.79 in.) G 20 mm dia. (0.79 in. dia.) H 68 mm dia. (2.68 in. dia.)

I 59.8 to 59.9 mm dia. (2.354 to 2.358 in. dia.) J 64.8 to 64.9 mm dia. (2.551 to 2.555 in. dia.)

W10261390

G-44

Page 68

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

Balancer Metal Replacing Tool (for Removing)

Application: Use to remove the metal bearing.

G GENERAL

A 25 mm (0.98 in. dia.) L 41.934 to 41.950 mm dia. (1.6509 to 1.6516 in. dia.)

B 10 mm (0.39 in.) M 24.959 to 24.980 mm dia. (0.9826 to 0.9835 in. dia.) C Chamfer 0.3 mm (0.01 in.) N 21.947 to 21.960 mm dia. (0.8641 to 0.8646 in. dia.) D 0.52 rad (30 °) O 28 mm (1.10 in.)

E 46.950 to 46.975 mm dia. (1.8484 to 1.8494 in. dia.) P 29 mm (1.14 in.)

F 43.934 to 43.950 mm dia. (1.7297 to 1.7303 in. dia.) Q 5 mm (0.20 in.) G 41 mm (1.61 in.) R 36 mm (1.42 in.) H 32.5 mm (1.28 in.) S 195.25 to 195.75 mm (7.687 to 7.707 in.)

I 148.5 mm (5.85 in.) T 145 mm (5.71 in.)

J 46.50 to 46.75 mm dia. (1.831 to 1.841 in. dia.) U 384.75 to 385.25 mm (15.148 to 15.167 in.)

K 44.950 to 44.975 mm dia. (1.7697 to 1.7707 in. dia.)

G-45

Page 69

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

Balancer Metal Replacing Tool (for Fitting)

Application: Use to press fit the metal bearing.

G GENERAL

A 0.52 rad (30 °) O 5 mm (0.20 in.) B 10 mm (0.39 in.) P 3.3 to 3.7 mm (0.130 to 0.146 in.) C Chamfer 0.3 mm (0.01 in.) Q 43.934 to 43.950 mm dia. (1.7297 to 1.7303 in. dia.) D 182 mm (7.16 in.) R 140 mm (5.51 in.) E 140 mm (5.51in.) S 36 mm (1.42 in.) F 35 mm dia. (1.38 in dia.) T 60 mm dia. (2.36 in. dia.) G 60 mm dia. (2.36 in dia.) U 46 .950 to 46.975 mm dia. (1.8484 to 1.8494 in. dia.) H 37 mm (1.46 in.) V 44.950 to 44.975 mm dia. (1.7697 to 1.7707 in. dia.)

I 21.947 to 21.960 mm dia. (0.8641 to 0.8646 in. dia.) W 41.934 to 41.950 mm dia. (1.6509 to 1.6516 in. dia.)

J 24.959 to 24.980 mm dia. (0.9826 to 0.9835 in. dia.) X 145 mm (5.71 in.)

K 8.8 to 9.2 mm (0.346 to 0.362 in.) Y 195.25 to 195.75 mm (7.687 to 7.707 in.)

25 mm dia. (0.98 in. dia.)

60 mm dia. (2.36 in. dia.)

46.950 to 46.975 mm dia. (1.8484 to 1.8494 in. dia.)

G-46

Z a

29 mm (1.14 in.) 36 mm (1.42 in.)

Page 70

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

[2] SPECIAL TOOLS FOR TRACTOR

Tie-rod End Lifter

Code No: 07909-39051 Application: Use for removing the tie-rod end with ease.

Steering Wheel Puller

Code No: 07916-51090 Application: Use for removing the steering wheel without damaging

G GENERAL

W10264720

the steering shaft.

W10265330

Injector CH3

Code No: 07916-52501 Application: Use for injecting calcium chloride solution into, and

removing it from, rear and 4WD type front wheel tires.

W10265850

Clutch Center Tool (For B and L Series Tractors)

Application: The clutch center tool can be used for all B and L series

tractors with a diaphragm clutch by changing tip guides. Center piece diameter is 20 mm (0.79 in.).

W10266370

Toe-in Gauge

Code No: 07909-31681 Application: This allows easy measurement of toe-in for all machine

models.

W10266890

G-47

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

Rear Axle Cover Puller

Code No: 07916-51041 Application: Use for removing a rear axle cover from rear axle.

W10732590

Relief Valve Pressure Tester

Code No: 07916-50045 Application: This allows easy measurement of relief set pressure.

(1) Gauge (07916-50322) (2) Cable (07916-50331) (3) Threaded Joint (07916-50401) (4) Threaded Joint (07916-50341) (5) Adaptor B (M18 × P1.5)

(07916-50361)

(6) Adaptor C (PS3/8) (07916-50371) (7) Adaptor D (PT1/8) (07916-50381) (8) Adaptor E (PS3/8) (07916-50392) (9) Adaptor F (PF1/ 2) (07916-62601)

(10) Adaptor 58 (PT1/4) (07916-52391)

W10267410

Flow Meter

Code No: 07916-52791 (Flow Meter)

07916-52651 (Hydraulic Test Hose)

Application: This allows easy testing of hydraulic system.

(1) Flow Meter (2) Hydraulic Test Hose

W10313180

Adaptor Set for Flow Meter

Code No: 07916-54031 Application: Use for testing the hydraulic system.

(1) Adaptor 52 (2) Adaptor 53 (3) Adaptor 54 (4) Adaptor 61 (5) Adaptor 62 (6) Adaptor 63 (7) Adaptor 64

(8) Adaptor 65 (9) Adaptor 66

(10) Adaptor 67

(11) Adaptor 68 (12) Adaptor 69 (13) Hydraulic Adaptor 1

W10313960

Power Steering Adapter

Code No: 07916-54021 Application: Use for measuring the relief val ve setting pressur e for

power steering.

W10442870

G-48

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

KiSC issued 06, 2006 A

G GENERAL

Pinion Locking Tool

Code No: 07916-52311 Application: Use for preventing the shaft from turning when

removing or tighten a bevel pinion shaft staking nut.

W10445520

Rear Axle Nut Wrench 71

Code No: 07916-52531 Application: Use for removing and installing a rear axle nut.

W10446460

Relief Valve Setting Pressure Adaptor G

Code No: 07916-52751 Application: This offers easy measurement of relief valve setting

pressure from the h ydraulic coupl er. This is availa ble with the relief valve setting pressure tester.

• The following special tools are not provided, so make them referring to the figure. Pinion Shaft Remover

Application: Use for removing a pinion shaft.

A 106 mm (4.17 in.) B 350 mm (13.78 in.) C 6 mm (0.24 in.) D 90 mm (3.54 in.) E 10 mm (0.39 in.) F 40 mm (1.57 in.) G 10 mm (0.39 in.) H 35.6 mm (1.40 in.)

I 36 mm (1.42 in.)

J 41.6 mm (1.64 in.)

K Part code No. 3A201-4130 nut

L M27 × P1.5

M M10 × P1.25

W10623960

W10315930

G-49

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KiSC issued 06, 2006 A

G GENERAL

Hydraulic Arm Shaft Bushing Press-Fitting Tool

Application: Use for replacing th e hydraulic arm shaft bus hings in

the hydraulic cylinder body.

Right Left

54.7 to 54.9 mm

(2.1535 to 2.1614 in.)

24.5 to 25.5 mm

(0.9646 to 1.0039 in.) C 40 mm (1.57 in.) 40 mm (1.57 in.) D 32 mm (1.26 in.) 30 mm (1.18 in.)

49.7 to 49.9 mm

(1.9567 to 1.9646 in.) F 70 mm dia. (2.76 in. dia.) G 40 mm dia. (1.57 in. dia.) H 50 mm (1.97 in.)

I 10 mm (0.39 in.) a6.3 μm (250 μin.) b6.3 μm (250 μin.) c6.3 μm (250 μin.) d6.3 μm (250 μin.)

49.7 to 49.9 mm (1.9567 to 1.9646 in.)

21.5 to 22.5 mm (0.8465 to 0.8858 in.)

44.7 to 44.9 mm (1.7598 to 1.7677 in.)

W10316550

Draft Control Test Bar

Application: Use for checking the lift range and floating range of

hydraulic draft control.

A 1045 mm (41.14 in.) B 1000 mm (29.37 in.) C 20 mm dia. (0.79 in. dia.) D 30 mm dia. (1.18 in. dia.) E 90 mm (3.54 in.) F 30 mm (1.18 in.) G 30 mm (1.18 in.) H 15 mm (0.59 in.)

I 20 mm dia. (0.79 in. dia.) J Weld all around

K Weld all around

L 20 mm (0.79 in.)

W10625190

G-50

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

KiSC issued 06, 2006 A

G GENERAL

• Special tools for R134a refrigerant air conditioning system introduced below are available from NIPPONDENSO CO. LTD.

Air Conditioner Service Tool

Code No: NIPPONDENSO 95048-00061 Application: Use for charging, testing or discharging the air

conditioning system.

W1013507

(1) Manifold Gauge

Assembly

(2) Charging Hose

(Red : HI)

(3) Charging Hose

(Blue : LO) (4) Charging Hose (Green) (5) Can Tap Valve (6) T Joint (7) Quick Coupler (HI) (8) Quick Coupler (LO ) (9) Se rvice Valve Packing

(10) Charging Hose Packing

(11) Tool Case

95048-10090

95948-10270

95948-10280 95948-10260 95048-10150 95048-10160 95048-10130 95048-10140 95906-10310 95906-10300 95949-10610

W1014733

Electric Gas Leak Tester

Code No: NIPPONDENSO 95146-00060 Application: Use for gas leak testing the air conditioning system.

W1013817

Vacuum Pump

Code No: NIPPONDENSO 95046-00040 (AC220V)

95046-00050 (AC240V)

Application: Use for evacuating the air conditioning system.

(1) Adaptor (For 134a) (2) Vacuum Pump

W1013764

G-51

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

■

KiSC issued 06, 2006 A

Stopper Magnet Clutch (For A/C Compressor)

G GENERAL

Adaptor (For R134a)

Code No: NIPPONDENSO 95048-10190 (AC220V)

95048-10200 (AC240V)

Application: Use for evacuating the air conditioning system.

W1013888

Application: Use for loosen and tighten the magnet clutch mounting nut. (Use radius C)

NOTE

• This special tool is not provided, so make it referring to the figure.

A 125 mm (4.92 in.) H 4.52 rad (120 °) B 40 mm dia. (1.57 in. dia.) I Radius 27 mm (Radius 1.06 in.) C Radius 33 mm (Radius 1.30 in.) J Radius 50 mm (Radius 1.97 in.) D 16 mm (0.63 in.) K Weld all around E 120 mm dia. (4.72 in. dia.) L 20 mm (0.78 in.) F 12 mm dia. (0.47 in. dia.) M Radius 41 mm (Radius 1.61 in.) G 3 × M8 × 1.25 All screws

G-52

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

KiSC issued 06, 2006 A

G GENERAL

Stopper Bolt (for A/C Compressor)

Application: Use with the stopper magnet clutch.

• This special tool is not provided, so make it referring to the figure.

A 12 mm (0.47 in.) E 5.5 mm dia. (0.22 in. dia.)

B 35 mm (1.38 in.) F 6.5 mm dia. (0.26 in. dia.) C 7 mm (0.28 in.) G 0.52 rad (30 °) D 0.4 mm (0.016 in.) H M8 × P1.25

W1065437

Remover Magnet Clutch (for A/C Compressor)

Application: Use to remove the hub plate or center piece.

• This special tool is not provided, so make it referring to the figure.

A 12 mm (0.47 in.)

B 55 mm (2.16 in.) C 20 mm (0.79 in.) D 5 mm dia. (0.20 in. dia.)

EM8 × P1.25

W1066199

Valve Adaptor

Application: Use for measuring the system pressure of shuttle

valve.

A 24 mm (0.94 in.) B 27.7 mm (1.09 in.) C PS1/4 D 11 mm (0.43 in.)

E 15 mm (0.59 in.) F 40 mm (1.57 in.)

G 60 mm (2.36 in.) H 15 mm (0.59 in.)

I PT1/8 J 4 mm dia. (0.15 in. dia.)

1 Chamfer 1 mm (0.039 in.)

2 Chamfer 2 mm (0.079 in.)

W1039227

G-53

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

KiSC issued 06, 2006 A

Pump Adaptor

G GENERAL

Application: Use for checking the main hydraulic pump.

• When using, attach with following parts. O-ring : 04811-00180

• This adaptor is modified from Adaptor 61 of flowmeter adaptor set (see page G-46).

A 22 mm (0.872 in.) K 135 mm (5.31 in.) B 11 mm (0.437 in.) L 7 mm dia. (0.28 in. dia.) C 24 mm dia. (0.94 in. dia.) M 8.5 mm dia. (0.33 in. dia.) D 18 mm dia. (0.71 in. dia.) N 37 mm (1.46 in.) E 12 mm dia. (0.47 in. dia.) O 61.5 mm (2.42 in.) F 1.7 to 1.9 mm (0.067 to 0.075 in.) P 24 mm (0.94 in.) G 30 mm Round (1.18 in. Round) Q 27.7 mm (1.09 in.) H 10 mm dia. (0.39 in. dia.) R 0.244 rad (14 °)

I G 3/8 S 40 mm (1.57 in.)

J 89 mm (3.50 in.) T 60 mm dia. (2.36 in. dia.)

(Reference)

• From size A to size R are same size as adaptor 61.

G-54

Page 78

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

9. TIRES

[1] TIRE PRESSURE

G GENERAL

Though the tire pr essure is factor y-set t o the pre scribed l evel, i t naturally drops slowly in the course of time. Thus, check it everyday and inflate as necessary. To inflate the wheel tires, use an air compressor or hand pump.

• Recommended inflation pressure Maintain the pressure shown below.

Tire sizes Inflation Pressure

, 20 psi)

, 22 psi)

, 20 psi)

, 10 psi)

, 14 psi)

, 24 psi)

, 20 psi)

, 32 psi)

, 22 psi)

, 30 psi)

, 12 psi)

, 20 psi)

, 32 psi)

Rear

Front

12.4-24, 4PR 140 kPa (1.4 kgf/cm

13.6-28, 4PR 150 kPa (1.5 kgf/cm

14.9-24, 6PR 140 kPa (1.4 kgf/cm

14.9-26, 4PR 140 kPa (1.4 kgf/cm 41/18LL × 16.1, 6PR 70 kPa (0.7 kgf/cm 355/80-D20, 4PR 100 kPa (1.0 kgf/cm 44 × 18-20, 6PR 170 kPa (1.7 kgf/cm 420/70-24, 6PR 140 kPa (1.4 kgf/cm

17.5L-24, 6PR 140 kPa (1.4 kgf/cm

6.00-16, 4PR 220 kPa (2.2 kgf/cm

7.2-16, 4PR 150 kPa (1.5 kgf/cm

8.3-16, 4PR 150 kPa (1.5 kgf/cm

9.5-16, 4PR 205 kPa (2.1 kgf/cm 27 × 8.50-15, 4PR 85 kPa (0.8 kgf/cm 27 × 10.50-15, 4PR 85 kPa (0.8 kgf/cm 29 × 12.50-15, 4PR 140 kPa (1.4 kgf/cm 10-16.5, 6PR 140 kPa (1.4 kgf/cm

7.5L-15, 6PR 220 kPa (2.2 kgf/cm

CAUTION

• Do not attempt to mount a tire. This should be done by a qualified person with the proper equipment. Qualified person with the proper tire mounting equipment should recognize the following warning.

WARNING

• Never exceed 241 kPa (2.5 kgf/cm

, 35 psi) when attempting

to seat a bead. If beads have not been seated by the time the

pressure reached 241 kPa (2.5 kgf/cm

, 35 psi), deflate the assembly, reposition the tire on the rim, relubricate and reinflate. After seating the bead, adjust inflation pressure as recommended in the inflation pressure chart .

(A) Insufficient (B) Standard (C) Excessive

(1) Ground

W10440050

G-55

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

IMPORTANT■

KiSC issued 06, 2006 A

G GENERAL

[2] TREADS ADJUSTMENT

CAUTION

• When working on sl opes or working with trailer, set the wheel tread as wide as practic e for the job for maximum stability.

• Support tractor securely on stands before removing a wheel.

• 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.

• Never operate tractor with a loose rim, wheel, or axle.

(1) Front Wheels (A) 2WD Type

Front tread width c an be adjusted as shown with th e standard

equipped tires.

To change the tread width.

1. Remove the front axle mou nting bolts and the tie-rod mounting bolts.

2. Move the fron t axles (right and left) to the desired position, and tighten the bolts.

3. Adjust the toe-in.

Toe-in Factory spec.

2 to 8 mm

0.1 to 0.3 in.

124 to 147 N·m

Front axle mounting bolt

Tightening torque

Tie-rod mounting bolt

(1) Front Axle Mounting Bolt (2) Tie-rod Mounting bolt

(3) Tie-rod Clamp

12.6 to 15.0 kgf·m

91.5 to 108.4 ft-lbs 61 to 71 N·m

6.2 to 7.2 kgf·m

44.8 to 52.1 ft-lbs

W1092845

Models

6.00-15 Farm 1310 mm (51.6 in.) 1410 mm (55.5 in.) 1510 mm (59.4 in.) 1610 mm (63.4 in.)

7.5L-15 Farm 1280 mm (50.4 in.) 1380 mm (54.3 in.) 1480 mm (58.3 in.) 1580 mm (62.2 in.) 27 × 8.50-15

Turf

27 × 10.50-15

Turf

29 × 12.50-15

Turf

1235 mm (48.6 in.) 1335 mm (52.6 in.) 1435 mm (56.5 in.) 1535 mm (60.4 in.)

1215 mm (47.8 in.) 1315 mm (51.8 in.) 1415 mm (55.7 in.) 1515 mm (59.6 in.)

1315 mm (51.8 in.) 1415 mm (55.7 in.) 1515 mm (59.6 in.) 1615 mm (63.6 in.)

• The front tread width for the front loader application on 2WD models should not be greater than 1310 mm (51.6 in.) for L3130, L3430.

W10522820

G-56

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

IMPORTANT■

NOTE■

■

IMPORTANT■

KiSC issued 06, 2006 A

(B) 4WD Type

Front axle is not adjustable

Models L3130, L3430

Tire

Tread

Models L3830

Tire –

Tread –

Models L4330, L4630

Tire –

Tread –

Models L5030

Tire –

Tread –

7.2-16 Farm

1115 mm

(43.9 in.)

G GENERAL

• Do not turn front discs to obtain wider tread.

• Wheels with beveled or tapered holes : use the tapered side of lug nut.

W1093036

–

8.3-16 Farm

1155 mm

(45.5 in.)

8.3-16 Farm

1300 mm

(51.2 in.)

9.5-16 Farm

1340 mm

(52.8 in.)

27 × 8.50-

15 Turf

1200 mm

(47.2 in.)

27 × 8.50-

15 Turf

1200 mm

(47.2 in.)

–

27 × 10.50-

15 Tu rf

1230 mm

(48.4 in.)

27 × 10.50-

15 Tu rf

1230 mm

(48.4 in.)

27 × 10.50-

15 Tu rf

1375 mm

(54.1 in.)

27 × 10.50-

15 Tu rf

1375 mm

(54.1 in.)

29 × 12.50-

15 Turf

1280 mm

(50.4 in.)

29 × 12.50-

15 Turf

1280 mm

(50.4 in.)

29 × 12.50-

15 Turf

1425 mm

(56.1 in.)

29 × 12.50-

15 Turf

1425 mm

(56.1 in.)

10-16.5

IND

1235 mm

(48.6 in.)

10-16.5

IND

1235 mm

(48.6 in.)

10-16.5

IND

1380 mm

(54.3 in.)

10-16.5

IND

1380 mm

(54.3 in.)

• IND : for industrial

(2) Rear Wheels

To change the tread

1. Lift the rear tires off the ground.

2. Follow the illustrations below to get the desired tread width.

• If not attached as illustrated, transmission parts may be damaged.

• When re-fitting or adjusting a wheel, tighten the bolts to the following torques then recheck after driving

NOTE

W10527070

Rear tread can be adjusted in 6 steps depending on the model.

the tractor 200 m (200 yards) and thereafter according to service interval.

G-57

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

Models

G GENERAL

L3130, L3430

12.4-24 Farm

L3830, L4330, L4630

14.9-24 Farm L3130, L3430

420/70-24 IND

L3830, L4330, L4630

17.5L-24 IND L5030

13.6-28 Farm L5030

14.9-26 Farm L5030

17.5L-24 IND

Models

1200 mm

(47.2 in.)

–

1220 mm

(48.0 in.)

1300 mm

(51.2 in.)

1285 mm

(50.6 in.)

1325 mm

(52.2 in.)

1340 mm

(52.8 in.)

1330 mm

(52.4 in.)

––

–

1360 mm

(53.5 in.)

1385 mm

(54.5 in.)

1435 mm

(56.5 in.)

1360 mm

(53.5 in.)

1380 mm

(54.3 in.)

1425 mm

(56.1 in.)

1325 mm

(52.2 in.)

1395 mm

(54.9 in.)

1480 mm

(58.3 in.)

1530 mm

(60.2 in.)

1465 mm

(57.7 in.)

1490 mm

(58.7 in.)

1530 mm

(60.2 in.)

1430 mm

(56.3 in.)

1500 mm

(59.1 in.)

W10529090

L3130, L3430

355/80-D20 Turf

L3130, L3430

41/18LL × 16.1 Turf

L3830, L4330, L4630, L5030

41/18LL × 16.1 Turf

L3130, L3430

44 × 18-20 Turf

L3830, L4330, L4630, L5030

44 × 18-20 Turf

L3830

1270 mm

(50.0 in.)

1290 mm

(50.8 in.)

1420 mm

(55.9 in.)

1440 mm

(56.7 in.)

1400 mm

(55.1 in.)

1415 mm

(55.7 in.)

W10531370

G-58

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

IMPORTANT■

KiSC issued 06, 2006 A

G GENERAL

[3] TIRE LIQUID INJECT IO N

Auxiliary weights can be used to increase traction force for plowing in fields or clayey ground.

Another way is to inject water or another liquid, such as a calcium chloride solution in the tires. Water must not be used in winter s ince it freezes a t 0 °C (32 °F). The calcium c hloride solution w ill not freeze a nd moreover, af fords higher effect than water since its specific gravity is higher than that of water by about 20 %. Below is an explanation of calcium chloride solution injection.

• Do not fill the front tires with liquid. Preparation of Calcium Chloride Solution

CAUTION

• When making a calcium chloride solution, do not pour water over calcium chloride since this results in chemical reaction which will cause high temperature. Instead add a small amount of calcium chloride to the water at a time until the desired solution is achieved.

Freezing temp.

−5 °C (23 °F) 12 kg (26.4 lbs)

−10 °C (14 °F) 21 kg (46.3 lbs)

−15 °C (5 °F) 28 kg (61.7 lbs)

−20 °C (−4 °F) 34 kg (75.0 lbs)

−25 °C (−13 °F) 40 kg (88.2 lbs)

−30 °C (−22 °F) 44 kg (97.0 lbs)

−35 °C (−31 °F) 49 kg (108 lbs)

−40 °C (−40 °F) 52 kg (114.6 lbs)

−45 °C (−49 °F) 56 kg (123.5 lbs)

−50 °C (−58 °F) 61 kg (134.5 lbs)

Weight of CaCl

(26.5 U.S.gals., 22.0 Imp.gals.) of water

2 to be dissolved in 100 L

(a) Water (b) CaCl

2 (Calcium Chloride)

W10330830

Attaching Injector

1. Lift the rear tires off the ground.

2. Turn the tire so that the air valve is at the top.

3. Remove the air valve, and attach the injector. (Code No. 07916-

52501)

(1) Injector (2) Hose

W10333310

G-59

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■

KiSC issued 06, 2006 A

G GENERAL

Injection

CAUTION

• When a calcium chloride solution is used, cool it before pouring it into the tire.

• Do not fill tires with water or solution more than 75 % of full capacity (to the valve stem level).

The following four ways can be used to in jec t wate r or a calci um

chloride solution into tires.

1. Gravity injection (Fig. 1)

2. Pump injection (Fig. 2)

3. Pressure tank injection (Fig. 3)

4. Injection di rectly from tap (only when water is being used) .

NOTE

• Once injection is complete d, reset the air valve, and pump air into the tire to the specified pressure.

Weight of Calcium Chloride Solution Filling 75 % of Full Capacity

of a Tire

Tire sizes 12.4-24 420/70-24 14.9-24 Slush free at −10 °C (14 °F)

Solid at −30 °C (−22 °F) [Approx. 1 kg (2 lbs.) CaCl 4 L (1 gal.) of water]

Slush free at −24 °C (−11 °F) Solid at −47 °C (−53 °F) [Approx. 1.5 kg (3.5 lbs.) CaCl per 4 L (1 gal.) of water]

Slush free at −47 °C (−53 °F) Solid at −52 °C (−62 °F) [Approx. 2.25 kg (5 lbs.) CaCl per 4 L (1 gal.) of water]

2 per

130 kg

(285 lbs)

135 kg

(295 lbs)

145 kg

(320 lbs)

195 kg

(430 lbs)

205 kg

(450 lbs)

220 kg

(485 lbs)

205 kg

(450 lbs)

215 kg

(475 lbs)

225 kg

(495 lbs)

Tire sizes 17.5L-24 14.9-26 13.6-28 Slush free at −10 °C (14 °F)

Solid at −30 °C (−22 °F) [Approx. 1 kg (2 lbs.) CaCl 4 L (1 gal.) of water]

Slush free at −24 °C (−11 °F) Solid at −47 °C (−53 °F) [Approx. 1.5 kg (3.5 lbs.) CaCl per 4 L (1 gal.) of water]

Slush free at −47 °C (−53 °F) Solid at −52 °C (−62 °F) [Approx. 2.25 kg (5 lbs.) CaCl per 4 L (1 gal.) of water]

(1) Pump (2) Pressure Tank (3) Compressor (4) Air (5) Water

2 per

235 kg

(515 lbs)

250 kg

(550 lbs)

265 kg

(585 lbs)

(A) Correct : 75 %

Air Compresses Like A Cushion

(B) Incorrect : 100 % Full

Water Can Not Be Compressed

215 kg

(475 lbs)

225 kg

(495 lbs)

235 kg

(515 lbs)

185 kg

(405 lbs)

200 kg

(441 lbs)

215 kg

(475 lbs)

W10334350

G-60

Page 84

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KiSC issued 06, 2006 A

G GENERAL

Draining Water or Solution

1. Lift the rear tires off the ground.

2. Turn the tire so that the air valve is at the bottom.

3. Remove the air valve, and drain liquid (liquid can only be drained to the level of the valve and liquid under that level remains inside).

4. To drain liquid completely, use the injector, and direct compressed air into the tire to force out the liquid through the injector’s vent.

(1) Injector (2) Hose (3) Vent

A: Compressed Air

W10451670

G-61

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L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

KiSC issued 06, 2006 A

G GENERAL

[4] IMPLEMENT LIMITATIONS

The KUBOTA Tractor has been thoroughly tested for prop er performance with implem ents sold or approved by KUBOTA. Use with implements which exceed the maximum specifications listed below, or which are otherwise unfit for use with the KUBOTA Trac tor may result in ma lfunctio ns or failures of the tractor, dama ge 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)

Front

Rear

2WD 4WD

L3130 1610 mm (63.4 in.)

1480 mm (58.3 in.) 1700 kg (3750 lbs.)

L3430 –

1155 mm (45.5 in.) L3830 1580 mm (62.2 in.) L4330 –

1530 mm (60.2 in.)

1300 mm (51.2 in.)

L4630 – L5030 – 1340 mm (52.8 in.) 1430 mm (56.3 in.)

Actual figures

L3130

Implement weight W

size

1 and / or

Max. Drawbar Load W

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

Trailer loading weight W3

L3430 L3830 2500 kg (5500 lbs) L4330

As in the following list

(Shown on the next pate)

650 kg (1430 lbs)

L5030

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

Implement weight.................................................The implement’s weight which can be put on the link : W1

Max. drawbar load ............................ ....... ...... ......W2

Trailer loading weight ...........................................The max. loading weight for trailer (without trailer’s weight ) : W3

Lower link end max.

loading weight W

1750 kg (3860 lbs.)

Max. capacity

2000 kg (4400 lbs)

3000 kg (6600 lbs)L4630

• Implement size may vary depending on soil operating conditions.

G-62

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KiSC issued 06, 2006 A

G GENERAL

No. Implement Remarks L3130 L3430

Max. Load Capacity 1500 kg (3300 lbs) 2000 kg (4400 lbs)

1Trailer

Max. Drawbar Load 500 kg (1100 lbs) 650 kg (1430 lbs) Max. Cutting Width 1829 mm (72 in.)

Mid-mount

Max. Weight 200 kg (440 lbs) Max. Cutting Width 1829 mm (72 in.)

Rotary-cutter

Max. Weight 350 kg (770 lbs)

2Mower

Flail Mower (Heavy)

Max. Cutting Width 1524 mm (60 in.) Max. Weight 400 kg (8800 lbs) Max. Cutting Width 2134 mm (84 in.)

Sickle Bar

Max. Weight 500 kg (1100 lbs)

Rear Mount Max. Tank-capacity 300 L (80 U.S.gals., 66 Imp.gals.)

3 Sprayer

Pull Type

Max. Tank-capacity

800 L

(210 U.S.gals.,

176 Imp.gals.)

1000 L

(264 U.S.gals.,

220 Imp.gals.) 4 Rotary Tiller Max. Tilling Width 1524 mm (60 in.) 5 Bottom Plow Max. Size 12 in. × 2, 16 in. × 1

Disc-harrow Pull Type

Max. Harrowing Width 1829 mm (72 in.) Max. Weight 350 kg (770 lbs) Max. Width 1829 mm (72 in.)

7 Chisel Plow

Max. Weight 350 kg (770 lbs)

8 Broad Caster

Max. Tank-capacity

200 L (53 U.S.gals.,

44 Imp.gals.)

250 L (66 U.S.gals.,

55 Imp.gals.)

Max. Weight 100 kg (220 lbs)

9 Manure Spreader Max. Capacity 1500 kg (3300 lbs)

Max. Width 1829 mm (72 in.)

10 Cultivator

Number of Rows 1 Max. Weight 300 kg (660 lbs) 350 kg (770 lbs) Max. Cutting Width 1829 mm (72 in.)

11 Front Blade

Max. Oil Pressure 17.2 MPa (175 kgf/cm

, 2490 psi) Sub Frame Necessa ry Max. Cutting Width 1829 mm (72 in.)

12 Rear Blade

Max. Oil Pressure 17.2 MPa (175 kgf/cm

, 2490 psi) Max. Lifting Capacity 720 kg (1590 lbs)

13 Front Loader

Max. Oil Pressure 17.7 MPa (180 kgf/cm

, 2560 psi) Sub Frame Necessa ry Max. Cutting Width 1651 mm (65 in.)

14 Box Blade

Max. Weight 400 kg (880 lbs) Max. Digging Depth 2286 mm (90 in.)

15 Back Hoe

Max. Weight 450 kg (990 lbs) Sub Frame Necessa ry

W1012736

G-63

Page 87

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

KiSC issued 06, 2006 A

G GENERAL

No. Implement Remarks L3130 L3430

Max. Width 1829 mm (72 in.)

16 Snow Blade

Max. Weight 350 kg (770 lbs) Max. Working Width 1702 mm (67 in.)

17 Snow Blower

Max. Weight 280 kg (620 lbs)

• Implement size may vary depending on soil operating conditions.

W1102494

G-64

Page 88

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

No. Implement Remarks L3830 L4330

Max. Load Capacity 2500 kg (5500 lbs) 3000 kg (6600 lbs)

1Trailer

Max. Drawbar Load 650 kg (1430 lbs) Max. Cutting Width 1829 mm (72 in.) –

Mid-mount

Max. Weight 200 kg (440 lbs) – Max. Cutting Width 1829 mm (72 in.)

Rotary-cutter

Max. Weight 420 kg (926 lbs)

2Mower

Flail Mower (Heavy)

Max. Cutting Width 1524 mm (60 in.) Max. Weight 400 kg (8800 lbs) Max. Cutting Width 2134 mm (84 in.)

Sickle Bar

Max. Weight 500 kg (1100 lbs)

Rear Mount Max. Tank-capacity 400 L (106 U.S.gals., 88 Imp.gals.)

3 Sprayer

Pull Type Max. Tank-capacity 1200 L (317 U.S.gals., 264 Imp.gals.) 4 Rotary Tiller Max. Tilling Width 1524 mm (60 in.) 5 Bottom Plow Max. Size 14 in. × 2

Disc-harrow Pull Type

Max. Harrowing Width 1981 mm (78 in.) Max. Weight 400 kg (880 lbs) Max. Width 1829 mm (72 in.)

7 Chisel Plow

Max. Weight 350 kg (770 lbs) Max. Tank-capacity 300 L (80 U.S.gals., 66 Imp.gals.)

8 Broad Caster

Max. Weight 100 kg (220 lbs)

9 Manure Spreader Max. Capacity 2000 kg (4400 lbs)

Max. Width 2134 mm (84 in.)

10 Cultivator

Number of Rows 2 Max. Weight 400 kg (880 lbs) Max. Cutting Width 1829 mm (72 in.) 2134 mm (84 in.)

11 Front Blade

Max. Oil Pressure 17.2 MPa (175 kgf/cm

, 2490 psi) Sub Frame Necessa ry Max. Cutting Width 1829 mm (72 in.)

12 Rear Blade

Max. Oil Pressure 17.2 MPa (175 kgf/cm

, 2490 psi) Max. Lifting Capacity 720 kg (1590 lbs) 850 kg (1880 lbs)

13 Front Loader

Max. Oil Pressure 17.7 MPa (180 kgf/cm

, 2560 psi) Sub Frame Necessa ry Max. Cutting Width 1651 mm (65 in.) 1829 mm (72 in.)

14 Box Blade

Max. Weight 400 kg (880 lbs) 470 kg (1040 lbs) Max. Digging Depth 2286 mm (90 in.)

15 Back Hoe

Max. Weight 450 kg (990 lbs) Sub Frame Necessa ry

W1012736

G-65

Page 89

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

KiSC issued 06, 2006 A

G GENERAL

No. Implement Remarks L3830 L4330

Max. Width 1829 mm (72 in.) 2134 mm (84 in.)

16 Snow Blade

Max. Weight 350 kg (770 lbs) 400 kg (880 lbs) Max. Working Width 1702 mm (67 in.) 1829 mm (72 in.)

17 Snow Blower

Max. Weight 280 kg (620 lbs) 330 kg (730 lbs)

• Implement size may vary depending on soil operating conditions.

W1104121

G-66

Page 90

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

G GENERAL

No. Implement Remarks L4630 L5030

Max. Load Capacity 3000 kg (6600 lbs)

1Trailer

Max. Drawbar Load 650 kg (1430 lbs) Max. Cutting Width –

Mid-mount

Max. Weight – Max. Cutting Width 1829 mm (72 in.) 2134 mm (84 in.)

Rotary-cutter

Max. Weight 420 kg (926 lbs) 480 kg (1058 lbs)

2Mower

Flail Mower (Heavy)

Max. Cutting Width 1524 mm (60 in.) 1829 mm (72 in.) Max. Weight 400 kg (8800 lbs) 500 kg (1100 lbs) Max. Cutting Width 2134 mm (84 in.)

Sickle Bar

Max. Weight 500 kg (1100 lbs)

Rear Mount

Max. Tank-capacity

400 L

(106 U.S.gals.,

88 Imp.gals.)

500 L

(132 U.S.gals.,

110 Imp.gals.)

3 Sprayer

Pull Type

Max. Tank-capacity

1200 L

(317 U.S.gals.,

264 Imp.gals.)

2000 L

(528 U.S.gals.,

440 Imp.gals.) 4 Rotary Tiller Max. Tilling Width 1524 mm (60 in.) 1829 mm (72 in.) 5 Bottom Plow Max. Size 14 in. × 2 16 in. × 2

Disc-harrow Pull Type

Max. Harrowing Width 1981 mm (78 in.) 2134 mm (84 in.) Max. Weight 400 kg (880 lbs) Max. Width 1829 mm (72 in.)

7 Chisel Plow

Max. Weight 350 kg (770 lbs) Max. Tank-capacity 300 L (80 U.S.gals., 66 Imp.gals.)

8 Broad Caster

Max. Weight 100 kg (220 lbs)

9 Manure Spreader Max. Capacity 2000 kg (4400 lbs)

Max. Width 2134 mm (84 in.) 2438 mm (96 in.)

10 Cultivator

Number of Rows 2 4 Max. Weight 400 kg (880 lbs) Max. Cutting Width 2134 mm (84 in.)

11 Front Blade

Max. Oil Pressure 17.2 MPa (175 kgf/cm

, 2490 psi) Sub Frame Necessa ry Max. Cutting Width 1829 mm (72 in.)

12 Rear Blade

Max. Oil Pressure 17.2 MPa (175 kgf/cm

, 2490 psi) Max. Lifting Capacity 850 kg (1880 lbs)

13 Front Loader

Max. Oil Pressure 17.7 MPa (180 kgf/cm

, 2560 psi) Sub Frame Necessa ry Max. Cutting Width 1829 mm (72 in.)

14 Box Blade

Max. Weight 470 kg (1040 lbs) Max. Digging Depth 2286 mm (90 in.)

15 Back Hoe

Max. Weight 450 kg (990 lbs) Sub Frame Necessa ry

W1012736

G-67

Page 91

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

NOTE■

KiSC issued 06, 2006 A

G GENERAL

No. Implement Remarks L4630 L5030

Max. Width 2134 mm (84 in.)

16 Snow Blade

Max. Weight 400 kg (880 lbs) Max. Working Width 1829 mm (72 in.)

17 Snow Blower

Max. Weight 330 kg (730 lbs)

• Implement size may vary depending on soil operating conditions.

W1105114

G-68

Page 92

1 ENGINE

KiSC issued 06, 2006 A

Page 93

MECHANISM

KiSC issued 06, 2006 A

CONTENTS

1. FEATURES....................................................................................................1-M1

2. ENGINE BODY ............................................................................................. 1-M2

[1] PISTON....................................................................................................1-M2

[2] BUILT-IN DYNAMIC BALANCER (FOR V2203-M AND V2403-M) ...1-M2

[3] HALF-FLOATING HEAD COVER..........................................................1-M3

3. COOLING SYSTEM......................................................................................1-M4

[1] BOTTOM BYPASS SYSTEM.................................................................1-M4

4. FUEL SYSTEM ............................................................................................. 1-M5

5. LUBRICATING SYSTEM .............................................................................. 1-M6

Page 94

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

1. FEATURES

ENGINE

The engine model shown in the table below is adopted in the L30 series tractor. These are 03-M series engine.

Tractor Model Engine Model L3130 D1503-MA-E / D1503-MA-E2 L3430 D1703-MA-E / D1703-MA-E2 L3830 D1803-M-E / D1803-M-E2 L4330 V2203-MA-E / V2203-MA-E2 L4630 V2203-MB-E / V2203-MB-E2 L5030 V2403-MA-E / V2403-MA-E2

W1012642

1-M1

Page 95

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

2. ENGINE BODY

[1] PISTON

Piston's skirt is coated with molybdenum disulfie d*, which reduces the p iston slap no ise and thus th e entire operating noise.

★ Molybdenum disulfide (MoS

The molybdenum disulfide (1) serves as a solid lubricant, like a Graphite or Tefl on. This mater ial helps resist metal wears even with little lube oil.

(1) Molybdenum Disulfide

[2] BUILT-IN DYNAMIC BALANCER (FOR V2203-M AND V2403-M)

Engine are sure to v ibrate by piston's reci procation. Theoretically, three-cylinder engines are much less prone to cause vibration than four-cylinder ones (second inertia, etc.). However, any engine has many moving parts in addition to its pis tons an d cannot be com pletel y free from vibration.

The four cylinders en gine can be fitted w ith balance weight on crankcase to absorb the second inertia mentioned above and reduce vibration.

This engine is internally provide with two b alancers (1), one at the su ction side and the other at the exhau st side.

(1) Balancer

ENGINE

W1013396

W1013551

1-M2

Page 96

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

[3] HALF-FLOATING HEAD COVER

ENGINE

The rubber pac king is fitting i n to maintain th e head cover 0.5 mm or so off the cylinder head. This arrangement helps reduce noise coming from the cylinder head.

(1) Cylinder Head Cover (2) Rubber Packing

W1013650

1-M3

Page 97

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

3. COOLING SYSTEM

[1] BOTTOM BYPASS SYSTEM

ENGINE

Bottom bypass syste m is introduced in 03-M Series

for improving the cooling performance of the radiator.

While the temperature of coolant in the engine is low, the thermostat is held close d and the cool ant i s allo wed to flow through the bypass pip e and to circulate in the engine.

When the temperature e xceeds the ther mosta t valve opening level, the thermostat fully opens itself to prevent the hot coolant fro m flowing throug h the bypa ss i nto the engine.

In this way, the radiator can increase its cooling performance.

(1) Thermostat (A) Thermostat Closed

(B) Thermostat Open

W1013752

1-M4

Page 98

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

4. FUEL SYSTEM

ENGINE

(1) Fuel Overflow Pipe (2) Injection Nozzle (3) Injection Pipe

(4) Fuel Tank (5) Injection Pump Air Vent Pipe (6) Injection Pump

(7) Fuel Filter (8) Fuel Feed Pump (9) Fuel Filter Air Vent Pipe

a : Injected Fuel Flow b : Returned Fuel Flow

The fuel system of this tractor is shown in the diagram above. Fuel from the tank flows in the passage as shown by the arrows, and is injected from the nozzle via the fuel injection

pump. Overflow fuel returns to the tank.

The system includes filters and other concerns to protect it from entrance of air, water and dust.

While the engine is ru nning, fu el i s fed into the in je cti on pu mp (6) by the fue l fee d pum p (8) af ter passi ng thro ugh the fuel filter (7). The fuel camshaft actuates the injection pump and force-feeds fuel to the injection nozzle (2) through the injection pipe (3). Fuel is then sprayed through the nozzle into the combustion chamber. The fuel discharged after lubricating and cooling the injection nozzle is returned to the fuel tank (4) automatically through the overflow pipe (1).

1-M5

Page 99

L3130 · L3430 · L3830 · L4330 · L4630 · L5030, WSM

KiSC issued 06, 2006 A

5. LUBRICATING SYSTEM

ENGINE

(1) Roc ker Arm (2) Oil Pressure Switch (3) Roc ker Arm Shaft (4) Valve (5) Governor Shaft (6) Idle Gear (7) Crank shaft (8) Oil Pump

(9) Oil Strainer (10) Relief Valve (11) Oil Filter Cartridge (12) Push Rod (13) Tappet (14) Camshaft (15) Piston (16) Connecting Rod (17) Oil Cooler

(L4330, L4630, L5030)

W1012968

A lubricating system cons ists of an oil stra iner (9 ), oil pump (8) , reli ef val ve (10) , oil filte r car tridge ( 11), o il co oler

(17) and oil pressure switch (2).

The oil pump su cks lubricat ing oil fr om the oil pan through t he oil strai ner and th e oil flows d own to the oil filter, cartridge where it is further filtered. Then the oil is forced to crankshaft (7), connecting rods (16), idle gear (6), governor shaft (5), camshaft (14) and rocker arm shaft (3) to lubricate each part through the oil gallery.

1-M6

Page 100

SERVICING

KiSC issued 06, 2006 A

CONTENTS

1. TROUBLESHOOTING....................................................................................1-S1

2. SERVICING SPECIFICATIONS ....................................................................1-S4

3. TIGHTENING TORQUES ............................. ....... ...... ....... ...... ....... ...... ....... .1-S12

4. CHECKING, DISASSEMBLING AND SERVICING....................................1-S13

[1] SEPARATING ENGINE FROM TRACTOR .........................................1-S13

[2] ENGINE BODY......................................................................................1-S27

(1) Checking and Adjusting ............................ ...... ....... ...........................1-S27

(2) Disassembling and Assembling........................................................1-S29

(3) Servicing ...........................................................................................1-S46

[3] LUBRICATING SYSTEM ............................... ...... ....... ...........................1-S65

(1) Checking...........................................................................................1-S65

(2) Servicing ...........................................................................................1-S66

[4] COOLING SYSTEM...............................................................................1-S66

(1) Checking and Adjusting ............................ ...... ....... ...........................1-S66

[5] FUEL SYSTEM ................................. ...... ....... ...... ....... ...... ....... ...... ........1-S69

(1) Checking and Adjusting ............................ ...... ....... ...........................1-S69