Kubota B2050, B2350, B2650, B3150, WSM Service Manual

WORKSHOP MANUAL

KiSC issued 03, 2014 A

TRACTOR

B2050,B2350,B2650,B3150

TO THE READER

KiSC issued 03, 2014 A

This Workshop Manual tells the servicing personnel about the mechanism, servicing and

maintenance of the B2050, B2350, B2650 and B3150. It contains 4 parts: "Information", "General", "Mechanism" and "Servicing".

 Information

This section primarily contains information below.

• Safety First

• Safety Decal

• Specifications

• Dimensions

 General

This section primarily contains information below.

• Engine Identification

• Model Identification

• General Precautions

• Maintenance Check List

• Check and Maintenance

• Special Tools

 Mechanism

This section contains information on the structure and the function of the unit. Before you continue

with the subsequent sections, make sure that you read this section.

Refer to the latest version of Workshop Manual (Code No. 9Y021-01870 / 9Y021-18200) for the

diesel engine / tractor mechanism that this workshop manual does not include.

 Servicing

This section primarily contains information below.

• Troubleshooting

• Servicing Specifications

• Tightening Torques

• Checking, Disassembling and Servicing

All illustrations, photographs and specifications contained in this manual are of the newest

information available at the time of publication.

KUBOTA reserves the right to change all information at any time without notice. Since this manual includes many models, information or illustrations and photographs can show

more than one model.

March, 2014

I INFORMATION

KiSC issued 03, 2014 A

INFORMATION

KiSC issued 03, 2014 A

CONTENTS

1. SAFETY FIRST .............................................................................................................................. I-1

2. SAFETY DECALS .......................................................................................................................... I-4

3. SPECIFICATIONS.......................................................................................................................... I-7

4. TRAVELING SPEEDS.................................................................................................................. I-11

5. DIMENSIONS ............................................................................................................................... I-13

B2050, B2350, B2650, B3150, WSM

SAFETY FIRST

DANGER

WARNING

CAUTION

IMPORTANT

NOTE

KiSC issued 03, 2014 A

INFORMATION

1. SAFETY FIRST

• 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 try to repair or use this unit.

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

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

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

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

• Gives helpful information.

WSM000001INI0001US1

BEFORE YOU START SERVICE

• 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 stable and level ground, and set the parking brake.

• Lower the implement to the ground.

• Stop the engine, then remove the key.

• Disconnect the battery negative cable.

• Hang a "DO NOT OPERATE" tag in the operator station.

WSM000001INI0010US0

START SAFELY

• Do not do the procedures below when you start the engine. – short across starter terminals – bypass the safety start switch

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

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

• Do not start the engine when you stay on the ground. Start the engine only from operator's seat.

WSM000001INI0015US0

I-1

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

INFORMATION

OPERATE SAFELY

• Do not use the machine after you consume alcohol or medication or when you are tired.

• Put on applicable clothing and safety equipment.

• Use applicable tools only. Do not use alternative tools or parts.

• When 2 or more persons do servicing, make sure that you do it safely.

• Do not operate below the machine that only a jack holds. Always use a safety stand to hold the machine.

• Do not touch the hot parts or parts that turn when the engine operates.

• Do not remove the radiator cap when the engine operates, or immediately after it stops. If not, hot water can spout out from the radiator. Only remove the radiator cap when it is at a sufficiently low temperature to touch with bare hands. Slowly loosen the cap to release the pressure before you remove it fully.

• Released fluid (fuel or hydraulic oil) under pressure can cause damage to the skin and cause serious injury. Release the pressure before you disconnect hydraulic or fuel lines. Tighten all connections before you apply the pressure.

• Do not open a fuel system under high pressure. The fluid under high pressure that stays in fuel lines can cause serious injury. Do not disconnect or repair the fuel lines, sensors, or any other components between the fuel pump and injectors on engines with a common rail fuel system under high pressure.

• Put on an applicable ear protective device (earmuffs or earplugs) to prevent injury against loud noises.

• Be careful about electric shock. The engine generates a high voltage of more than DC100 V in the ECU and is applied to the injector.

WSM000001INI0012US0

PREVENT A FIRE

• Fuel is very flammable and explosive under some conditions. Do not smoke or let flames or sparks in your work area.

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

• The battery gas can cause an explosion. Keep the sparks and open flame away from the top of battery, especially when you charge the battery.

• Make sure that you do not spill fuel on the engine.

WSM000001INI0005US0

I-2

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

INFORMATION

KEEP A GOOD AIRFLOW IN THE WORK AREA

• If the engine is in operation, make sure that the area has good airflow. Do not operate the engine in a closed area. The exhaust gas contains poisonous carbon monoxide.

WSM000001INI0006US0

DISCARD FLUIDS CORRECTLY

• Do not discard fluids on the ground, down the drain, into a stream, pond, or lake. Obey related environmental protection regulations when you discard oil, fuel, coolant, electrolyte and other dangerous waste.

WSM000001INI0007US0

PREVENT ACID BURNS

• Keep electrolyte away from your eyes, hands and clothing. Sulfuric acid in battery electrolyte is poisonous and it can burn your skin and clothing and cause blindness. If you spill electrolyte on yourself, clean yourself with water, and get medical aid immediately.

WSM000001INI0008US0

PREPARE FOR EMERGENCIES

• Keep a first aid kit and fire extinguisher ready at all times.

• Keep the emergency contact telephone numbers near your telephone at all times.

WSM000001INI0009US0

I-3

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

INFORMATION

2. SAFETY DECALS

The following safety decals (pictorial safety labels) 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.

WSM000001INI0014US0

9Y1210982INI0001US0

I-4

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

INFORMATION

9Y1210982INI0002US0

I-5

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

INFORMATION

9Y1210982INI0003US0

CARE OF PICTORIAL SAFETY LABELS

1. Keep pictorial safety labels clean and free from obstructing material.

2. Clean pictorial safety labels with soap and water, dry with a soft cloth.

3. Replace damaged or missing pictorial safety labels with new labels.

4. If a component with pictorial safety label(s) affixed is replaced with new part, make sure new label(s) is (are) attached in the same location(s) as the replace component.

5. Mount new pictorial safety labels by applying on a clean dry surface and pressing any bubbles to outside edge.

9Y1210982INI0004US0

I-6

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

INFORMATION

3. SPECIFICATIONS

[ROPS and CAB HST Type]

Model B2350 B2650 B3150

PTO power *1 12.5 kW (17.0 PS) 14.6 kW (19.9 PS) 17.4 kW (23.6 PS)

Maker KUBOTA

Model D1105 D1305 V1505

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

Number of cylinders 3 4

Bore and stroke

Engine

Capacities

Dimensions

Weight

Clutch N/A

Traveling system

Hydraulic unit

PTO

Total displacement 1123 cm

Engine gross power *1 15.9 kW (21.6 PS) 18.5 kW (25.2 PS) 21.8 kW (29.6 PS)

Rated revolution 2500 min

Maximum torque

Battery 12 V, RC : 80 min, CCA (SAE) : 430 A, CCA (EN) : 360 A

Fuel

Fuel tank 27 L (7.1 U.S.gals, 5.9 Imp.gals)

Engine crankcase (with filter)

Engine coolant 4.6 L (4.9 U.S.qts, 4.0 Imp.qts)

Transmission case 17.0 L (4.49 U.S.gals, 3.74 Imp.gals)

Overall length (with 3P)

Overall width (min. tread) 1249 mm (49.17 in.) 1365 mm (53.74 in.)

Overall height

Wheel base

Minimum ground clearance 290 mm (11.4 in.) 318 mm (12.5 in.)

Tread

Rear ROPS 839 to 865 kg (1850 to 1900 lbs)

CAB 1082 to 1108 kg (2386 to 2442 lbs)

Tires

Steering hydraulic power steering

Transmission Main-hydrostatic transmission, 3 range gear shift

Brake Wet disk type

Minimum turning radius (with brake)

Hydraulic control system Position Control

Pump capacity 3P : 18.9 L/min (4.99 gals/min), Power steering : 14.2 L/min (3.75 gals/min)

3-point hitch SAE Category 1

Max. lift force

Remote hydraulic control 2 Standard

Remote control valve coupler Hose connection type outlet

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

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

ROPS 2730 mm (107.5 in.) 2937 mm (115.6 in.)

CAB 2887 mm (113.7 in.) 3007 mm (118.4 in.)

Rear ROPS 2353 mm (92.64 in.) 2327 mm (91.61 in.)

CAB 2112 mm (83.15 in.) 2140 mm (84.25 in.)

ROPS 1500 mm (59.06 in.) 1666 mm (65.59 in.)

CAB 1560 mm (61.42 in.) 1666 mm (65.59 in.)

Front 830 mm (32.7 in.) 936 mm (36.8 in.)

Rear 1006 mm (39.61 in.) 1050 mm (41.34 in.)

Front 6.00-12 180/85D12

Rear 9.5-18 12.4-16

At lift points 970 kg (2138 lbs)

600 mm behind lift point

PTO / Engine speed

78 × 78.4 mm

(3.07 × 3.08 in.)

(68.53 cu.in.) 1261 cm3 (76.95 cu.in.) 1498 cm3 (91.41 cu.in.)

71.3 N·m

(7.27 kgf·m, 52.6 lbf·ft)

3.1 L

(3.3 U.S.qts, 2.7 Imp.qts)

Diesel fuel No.2 [above 10 °C (14 °F)],

Diesel fuel No.1 [below 10 °C (14 °F)]

540 min

2500 min

78 × 88 mm

(3.07 × 3.46 in.)

-1

(rpm)

84.0 N·m

(8.57 kgf·m, 62.0 lbf·ft)

4.0 L (4.2 U.S.qts, 3.5 Imp.qts)

2.1 m (6.9 feet)

760 kg (1676 lbs)

-1

(rpm) / 2400 min-1 (rpm)

-1

(rpm) / 2500 min-1 (rpm)

78 × 78.4 mm

(3.07 × 3.08 in.)

97.9 N·m

(9.98 kgf·m, 72.2 lbf·ft)

908 to 934 kg

(2010 to 2050 lbs)

1124 to 1150 kg

(2478 to 2535 lbs)

I-7

B2050, B2350, B2650, B3150, WSM

NOTE

KiSC issued 03, 2014 A

Model B2350 B2650 B3150

The level of protection against hazardous substances *2

ROPS N/A

CAB Category 1

ROPS 84.5 dB (A) 85.8 dB (A) 85.0 dB (A)

Noise at the operator's ear *3

Noise of the tractor in motion *4

GRAMMER MSG 83/511

GRAMMER

MSG 93/511 Value of the vibration level

SEARS 807 *5

SEARS 830

COBO

SC74/M91 *6

CAB/door closed

CAB/door opened

ROPS 80 dB (A) 80 dB (A) 80 dB (A)

CAB 80 dB (A) 80 dB (A) 82 dB (A)

Light driver 1.13 m/s

Heavy driver 1.00 m/s

Light driver 1.21 m/s

Heavy driver 1.05 m/s

Light driver 1.06 m/s

Heavy driver 1.24 m/s

Light driver 1.00 m/s

Heavy driver 1.14 m/s

Light driver 1.13 m/s

Heavy driver 0.75 m/s

81.2 dB (A) 85.0 dB (A) 83.0 dB (A)

82.8 dB (A) 85.8 dB (A) 82.0 dB (A)

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

• *1 : Manufacturer's estimate *2 : According to EN 15695-1:2009 *3 : Measured according to Directive 2009/76/EC ANNEX II *4 : Measured according to Directive 2009/63/EC *5 : Measured according to Directive 78/764/EEC *6 : Except CAB model.

INFORMATION

I-8

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

INFORMATION

ROPS Manual Transmission Type

Model B2050 B2350 B2650

PTO power *1 11.9 kW (16.2 PS) 13.0 kW (17.7 PS) 15.1 kW (20.5 PS)

Maker KUBOTA

Model D1105 D1305

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

Number of cylinders 3

Bore and stroke 78 × 78.4 mm (3.07 × 3.08 in.)

Engine

Total displacement 1123 cm

Engine gross power *1 14.6 kW (19.8 PS) 15.9 kW (21.6 PS) 18.5 kW (25.2 PS)

Rated revolution 2500 min

Maximum torque

68.1 N·m

(6.4 kgf·m, 50.2 lbf·ft)

(68.53 cu.in.) 1261 cm3 (76.95 cu.in.)

-1

(rpm)

71.3 N·m

(7.27 kgf·m, 52.6 lbf·ft)

Battery 12 V, RC : 80 min, CCA (SAE) : 430 A, CCA (EN) : 360 A

Fuel

Diesel fuel No.2 [above 10 °C (14 °F)],

Diesel fuel No.1 [below 10 °C (14 °F)]

Fuel tank 27 L (7.1 U.S.gals, 5.9 Imp.gals)

Capacities

Engine crankcase (with filter) 3.1 L (3.3 U.S.qts, 2.7 Imp.qts)

Engine coolant 4.6 L (4.9 U.S.qts, 4.0 Imp.qts)

Transmission case 16.5 L (4.36 U.S.gals, 3.63 Imp.gals)

Overall length (with 3P) 2730 mm (107.5 in.)

Overall width (min. tread) 1249 mm (49.17 in.)

Rear ROPS 2353 mm (92.64 in.)

Center ROPS 2069 mm (81.46 in.) – 2069 mm (81.46 in.)

Dimensions

Overall height

Wheel base 1500 mm (59.06 in.)

Minimum ground clearance 290 mm (11.4 in.)

Tread

Front 830 mm (32.7 in.)

Rear 1006 mm (39.61 in.)

Rear ROPS 819 to 845 kg (1810 to 1860 lbs)

Weight

Center ROPS

839 to 865 kg

(1850 to 1900 lbs)

–

Clutch Dry single plate

Front 6.00-12

Rear 9.5-18

2.1 m (6.9 feet)

Traveling system

Tires

Steering hydraulic power steering

Transmission Gear shift, 9 foreword and 9 reverse

Brake Wet disk type

Minimum turning radius (with brake)

Hydraulic control system Position Control

Pump capacity 3P : 18.9 L/min (4.99 gals/min), Power steering : 14.2 L/min (3.75 gals/min)

3-point hitch SAE Category 1

At lift points 970 kg (2138 lbs)

Hydraulic unit

Max. lift force

600 mm behind lift

760 kg (1676 lbs)

point

Remote hydraulic control 1 Standard

Remote control valve coupler Block type outlet

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

PTO / Engine

PTO

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

speed

PTO / Engine speed

The level of protection against hazardous substances *2

2500 min

540 min

-1

(rpm) / 2400 min-1 (rpm)

-1

(rpm) / 2500 min-1 (rpm)

N/A

Noise at the operator's ear *3 83.5 dB (A) 83.5 dB (A) 85.4 dB (A)

Noise of the tractor in motion *4 77 dB (A) 77 dB (A) 79 dB (A)

78 × 88 mm

(3.07 × 3.46 in.)

84.0 N·m

(8.57 kgf·m, 62.0 lbf·ft)

4.0 L

(4.2 U.S.qts, 3.5 Imp.qts)

839 to 865 kg

(1850 to 1900 lbs)

I-9

B2050, B2350, B2650, B3150, WSM

NOTE

KiSC issued 03, 2014 A

INFORMATION

Model B2050 B2350 B2650

Light driver 1.13 m/s

Heavy driver 1.00 m/s

Light driver 1.21 m/s

Heavy driver 1.05 m/s

Light driver 1.06 m/s

Heavy driver 1.24 m/s

Light driver 1.00 m/s

Heavy driver 1.14 m/s

Light driver 1.13 m/s

Heavy driver 0.75 m/s

Value of the vibration level *5

GRAMMER MSG 83/511

GRAMMER MSG 93/511

SEARS 807

SEARS 830

COBO SC74/M91

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

9Y1210982INI0005US0

I-10

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

4. TRAVELING SPEEDS

[ROPS and CAB HST Type]

Model B2350 / B2650

Tire size (Rear) 8-16 Farm 9.5-16 Farm 9.5-18 Farm

Range gear shift

lever

Low

Middle

Forward

High

Max. Speed (at 2650

engine rpm)

Low

Middle

Reverse

High

Max. Speed (at 2650

engine rpm)

0 to 4.61

(0 to 2.86)

0 to 7.57

(0 to 4.70)

0 to 19.12

(0 to 11.88)

20.27

(12.59)

0 to 3.69

(0 to 2.29)

0 to 6.05

(0 to 3.75)

0 to 15.29

(0 to 9.500)

16.21

(10.07)

0 to 4.94

(0 to 3.06)

0 to 8.09

(0 to 5.02)

0 to 20.45

(0 to 12.70)

21.68

(13.47)

0 to 3.95

(0 to 2.45)

0 to 6.48

(0 to 4.02)

0 to 16.36

(0 to 10.16)

17.34

(10.77)

km/h (mile/h)

0 to 5.24

(0 to 3.25)

0 to 8.59

(0 to 5.33)

0 to 21.71

(0 to 13.48)

23.01

(14.29)

0 to 4.19

(0 to 2.60)

0 to 6.87

(0 to 4.26)

0 to 17.37

(0 to 10.79)

18.41

(11.44)

(At rated engine rpm)

31 × 13.5-15

Turf

0 to 4.55

(0 to 2.82)

0 to 7.46

(0 to 4.63)

0 to 18.85

(0 to 11.71)

19.98

(12.41)

0 to 3.64

(0 to 2.26)

0 to 5.97

(0 to 3.70)

0 to 15.08

(0 to 9.370)

15.98

(9.930)

INFORMATION

315/75D-15

Turf

0 to 4.98

(0 to 3.09)

0 to 8.17

(0 to 5.07)

0 to 20.65

(0 to 12.83)

21.89

(13.60)

0 to 3.99

(0 to 2.47)

0 to 6.54

(0 to 4.06)

0 to 16.52

(0 to 10.26)

17.5 )

(10.88

Model B3150

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

Range gear shift

lever

Low 0 to 5.57 (0 to 3.46) 0 to 5.76 (0 to 3.57)

Middle 0 to 9.14 (0 to 5.67) 0 to 9.44 (0 to 5.87)

Forward

Max. Speed (at 2650

Reverse

Max. Speed (at 2650

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

High 0 to 23.09 (0 to 14.35) 0 to 23.86 (0 to 14.83)

engine rpm)

Low 0 to 4.46 (0 to 2.77) 0 to 4.60 (0 to 2.86)

Middle 0 to 7.31 (0 to 4.51) 0 to 7.55 (0 to 4.69)

High 0 to 18.47 (0 to 11.48) 0 to 19.08 (0 to 11.86)

engine rpm)

24.48 (15.21) 25.29 (15.71)

19.58 (12.17) 20.23 (12.57)

km/h (mile/h)

I-11

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

[ROPS Manual Transmission Type]

Model B2050 / B2350 / B2650

Tire size (Rear) 8-16 Farm 9.5-16 Farm 9.5-18 Farm

Range gear shift

lever

2 1.71 (1.06) 1.83 (1.14) 1.95 (1.21) 1.69 (1.05) 1.85 (1.15)

Low

3 2.66 (1.65) 2.84 (1.76) 3.02 (1.88) 2.62 (1.63) 2.87 (1.78)

5 3.19 (1.98) 3.41 (2.12) 3.62 (2.25) 3.14 (1.95) 3.44 (2.14)

Middle

6 4.94 (3.07) 5.29 (3.29) 5.61 (3.49) 4.87 (3.03) 5.34 (3.32)

Forward

High

Max.Speed

(at 2650 engine

rpm)

2 1.57 (0.976) 1.67 (1.04) 1.78 (1.11) 1.54 (0.957) 1.69 (1.05)

Low

3 2.43 (1.51) 2.60 (1.62) 2.76 (1.71) 2.40 (1.49) 2.62 (1.63)

5 2.91 (1.81) 3.12 (1.94) 3.31 (2.06) 2.87 (1.78) 3.15 (1.96)

Middle

6 4.52 (2.81) 4.83 (3.00) 5.13 (3.19) 4.46 (2.77) 4.88 (3.03)

Reverse

High

Max.Speed

(at 2650 engine

rpm)

INFORMATION

(At rated engine rpm)

31 × 13.5-15

Turf

315/75D-15

Turf

km/h (mile/h)

1.03 (0.640) 1.10 (0.684) 1.17 (0.727) 1.02 (0.634) 1.12 (0.696)

1.92 (1.19) 2.05 (1.27) 2.18 (1.35) 1.89 (1.17) 2.07 (1.29)

6.89 (4.28) 7.37 (4.58) 7.83 (4.87) 6.79 (4.22) 7.44 (4.62)

11.43

(7.102)

17.74

(11.02)

18.80

(11.68)

12.23

(7.599)

18.97

(11.79)

20.11

(12.50)

12.98

(8.065)

20.14

(12.51)

21.35

(13.27)

11.27

(7.003)

17.49

(10.87)

18.53

(11.51)

12.35

(7.674)

19.16

(11.91)

20.31

(12.62)

0.94 (0.58) 1.01 (0.628) 1.07 (0.665) 0.93 (0.58) 1.02 (0.634)

1.76 (1.09) 1.88 (1.17) 1.99 (1.24) 1.73 (1.07) 1.90 (1.18)

6.30 (3.91) 6.74 (4.19) 7.15 (4.44) 6.21 (3.86) 6.80 (4.23)

10.45

(6.493)

16.22

(10.08)

17.19

(10.68)

11.18

(6.947)

17.35

(10.78)

18.39

(11.43)

11.87

(7.376)

18.41

(11.44)

19.52

(12.13)

10.30

(6.400)

5.99

(9.936)

16.95

(10.53)

11.29

(7.015)

7.51

(10.88)

18.57

(11.54)

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

I-12

9Y1210982INI0006US0

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

5. DIMENSIONS

Center ROPS

INFORMATION

9Y1210982INI0007US0

I-13

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

ROPS

INFORMATION

9Y1210982INI0008US0

I-14

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

CABIN

INFORMATION

9Y1210982INI0009US0

I-15

G GENERAL

KiSC issued 03, 2014 A

GENERAL

KiSC issued 03, 2014 A

CONTENTS

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

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

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

[1] WIRING .................................................................................................................................. G-3

[2] BATTERY ............................................................................................................................... G-5

[3] FUSE ...................................................................................................................................... G-5

[4] CONNECTOR ........................................................................................................................ G-5

[5] HANDLING OF CIRCUIT TESTER ........................................................................................ G-6

[6] COLOR OF WIRING ..............................................................................................................G-7

4. LUBRICANTS, FUEL AND COOLANT......................................................................................... G-8

5. TIGHTENING TORQUES ........................................................................................................... G-10

[1] GENERAL USE SCREWS, BOLTS AND NUTS .................................................................. G-10

[2] STUD BOLTS ....................................................................................................................... G-10

[3] METRIC SCREWS, BOLTS AND NUTS .............................................................................. G-11

[4] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH UNC OR UNF

THREADS ............................................................................................................................ G-11

[5] PLUGS ................................................................................................................................. G-11

6. MAINTENANCE CHECK LIST ................................................................................................... G-12

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

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

[2] CHECK POINTS OF EVERY 50 HOURS ............................................................................ G-18

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

[4] CHECK POINTS OF EVERY 200 HOURS .......................................................................... G-29

[5] CHECK POINTS OF EVERY 400 HOURS .......................................................................... G-34

[6] CHECK POINT OF EVERY 800 HOURS ............................................................................. G-36

[7] CHECK POINT OF EVERY 1500 HOURS ........................................................................... G-36

[8] CHECK POINT OF EVERY 3000 HOURS ........................................................................... G-36

[9] CHECK POINTS OF EVERY 1 YEAR.................................................................................. G-36

[10]CHECK POINTS OF EVERY 2 YEARS ............................................................................... G-37

[11]OTHERS............................................................................................................................... G-39

8. SPECIAL TOOLS ................................................................................................................

SPECIAL TOOLS FOR E

[1]

[2] SPECIAL TOOLS FOR TRACTOR ...................................................................................... G-50

[3] SPECIAL TOOLS FOR CABIN............................................................................................. G-53

9. TIRES ......................................................................................................................................... G-56

[1] TIRE PRESSURE................................................................................................................. G-56

[2] WHEEL ADJUSTMENT........................................................................................................ G-57

(1) Front Wheels .................................................................................................................. G-57

(2) Rear Wheels................................................................................................................... G-58

[3] BALLAST.............................................................................................................................. G-59

10. IMPLEMENT LIMITATIONS ....................................................................................................... G-61

NGINE.......................................................................................... G-43

....... G-43

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

1. TRACTOR IDENTIFICATION

When contacting your local KUBOTA distributor, always specify

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

(1) Tractor Identification Plate (2) Tractor Serial Number (3) Engine Serial Number

GENERAL

(4) ROPS Identification Plate

(ROPS Serial Number)

(5) CABIN Identification Plate

(CABIN Serial Number)

9Y1210982GEG0001US0

G-1

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

2. GENERAL PRECAUTIONS

• When you disassemble, carefully put the parts in a clean area to make it easy to find the parts. You must install the screws, bolts and nuts in their initial position to prevent the reassembly errors.

• When it is necessary to use special tools, use KUBOTA special tools. Refer to the drawings when you make special tools that you do not use frequently.

• Before you disassemble or repair machine, make sure that you always disconnect the ground cable from the battery first.

• Remove oil and dirt from parts before you measure.

• Use only KUBOTA genuine parts for replacement to keep the machine performance and to make sure of safety.

• You must replace the gaskets and O-rings when you assemble again. Apply grease (1) to new O-rings or oil seals before you assemble.

• When you assemble the external or internal snap rings, make sure that the sharp edge (3) faces against the direction from which force (2) is applied.

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

• To prevent damage to the hydraulic system, use only specified fluid or equivalent.

• Clean the parts before you measure them.

• Tighten the fittings to the specified torque. Too much torque can cause damage to the hydraulic units or the fittings. Not sufficient torque can cause oil leakage.

• When you use a new hose or pipe, tighten the nuts to the specified torque. Then loosen (approx. by 45 °) and let them be stable before you tighten to the specified torque (This is not applied to the parts with seal tape).

• When you remove the two ends of a pipe, remove the lower end first.

• Use two pliers in removal and installation. One to hold the stable side, and the other to turn the side you remove to prevent twists.

• Make sure that the sleeves of flared connectors and tapers of hoses are free of dust and scratches.

• After you tighten the fittings, clean the joint and apply the maximum operation pressure 2 to 3 times to examine oil leakage.

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

GENERAL

(A) External Circlip (B) Internal Circlip

WSM000001GEG0106US0

G-2

B2050, B2350, B2650, B3150, WSM

IMPORTANT

KiSC issued 03, 2014 A

GENERAL

3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING

To ensure safety and prevent damage to the machine and surrounding equipment, obey the following precautions 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 same time recommend the dealer to perform periodic check for a fee.

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

• When removing the battery cables, disconnect the negative cable first. When installing the battery cables, connect the positive cable first.

(1) Negative Terminal (2) Positive Terminal

WSM000001GEG0062US0

[1] WIRING

• Securely tighten wiring terminals.

(1) Correct

(Securely Tighten)

(2) Incorrect

(Loosening Leads to Faulty Contact)

WSM000001GEG0063US0

• Do not let wiring contact dangerous part.

(1) Dangerous Part (Sharp Edge) (2) Wiring (Incorrect)

(3) Wiring (Correct) (4) Dangerous Part

WSM000001GEG0064US0

• Repair or change torn or aged wiring immediately.

(1) Aged (2) Torn

(3) Insulating Vinyl Tape

WSM000001GEG0065US0

G-3

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

GENERAL

• Securely insert grommet.

(1) Grommet (A) Correct

(B) Incorrect

WSM000001GEG0066US0

• Securely clamp, being careful not to damage wiring.

(1) Clamp

(Wind Clamp Spirally)

(2) Wire Harness

(3) Clamp (4) Welding Dent

WSM000001GEG0067US0

• 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

WSM000001GEG0068US0

• In installing a part, be careful not to get wiring caught by it.

(1) Wiring (A) Incorrect

WSM000001GEG0069US0

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

(1) Cover

(Securely Install Cover)

WSM000001GEG0070US0

G-4

B2050, B2350, B2650, B3150, WSM

CAUTION

KiSC issued 03, 2014 A

[2] BATTERY

GENERAL

• Be careful not to confuse positive and negative terminal posts.

• When you remove battery cables, disconnect negative cable first. When you install battery cables, check for polarity and connect positive cable first.

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

• After you connect cables to battery terminal posts, apply high temperature grease to them and securely install terminal covers on them.

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

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

• Before you recharge the battery, remove it from the machine.

• Before you recharge, remove cell caps.

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

WSM000001GEG0071US0

[3] FUSE

[4] CONNECTOR

• Use fuses with specified capacity. Neither too large nor small capacity fuse is acceptable.

• Never use steel nor 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) Fusible Link

(3) Slow Blow Fuse

WSM000001GEG0072US0

• For connector with lock, push lock to separate.

(A) Push

WSM000001GEG0073US0

• In separating connectors, do not pull wire harnesses.

• Hold connector bodies to separate.

(A) Correct (B) Incorrect

WSM000001GEG0074US0

G-5

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

GENERAL

• Use sandpaper to remove rust from terminals.

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

(1) Exposed Terminal (2) Deformed Terminal

(3) Sandpaper (4) Rust

WSM000001GEG0075US0

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

(A) Correct (B) Incorrect

WSM000001GEG0076US0

• Make sure that plastic cover is large enough to cover whole connector.

(1) Cover (A) Correct

(B) Incorrect

WSM000001GEG0077US0

[5] HANDLING OF CIRCUIT TESTER

• Use tester correctly following manual provided with tester.

• Check for polarity and range.

WSM000001GEG0078US0

G-6

B2050, B2350, B2650, B3150, WSM

KiSC issued 03, 2014 A

[6] COLOR OF WIRING

GENERAL

• Colors of wire are specified to the color codes.

• This symbol of "/" shows color with stripe(s).

(An example)

Red stripe on white color: W/R

Color of wiring Color code

Black B

Brown Br

Green G

Gray Gy or Gr

Blue L

Light Green Lg

Orange Or

Pink P

Purple Pu or V

Red R

Sky Blue Sb

White W

Yellow Y

(1) Wire Color (2) Stripe

WSM000001GEG0079US0

G-7

B2050, B2350, B2650, B3150, WSM

NOTE

KiSC issued 03, 2014 A

4. LUBRICANTS, FUEL AND COOLANT

Capacity

No. Place

1 Fuel tank

Cooling

system

Engine

crankcase

Transmission

case

Front axle

case

B2050 B2350

3.1 L

3.3

U.S.qts

2.7

Imp.qts

3.9 U.S.qts

3.3 Imp.qts

ROPS CAB

B2650 B3150 B2350 B2650 B3150

27 L

7.1 U.S.gals

5.9 Imp.gals

4.6 L

4.9 U.S.qts

4.0 Imp.qts

3.1 L

3.7 L

4.0 L

4.2 U.S.qts

3.5 Imp.qts

4.49 U.S.gals

3.74 Imp.gals [HST Type]

16.5 L

4.36 U.S.gals

3.63 Imp.gals

[Manual Transmission Type]

4.7 L

5.0

U.S.qts

4.1

Imp.qts

17 L

3.3

U.S.qts

2.7

Imp.qts

3.9 U.S.qts

3.3 Imp.qts

4.0 L

4.2 U.S.qts

3.5 Imp.qts

3.7 L

4.7 L

5.0

U.S.qts

4.1

Imp.qts

GENERAL

Lubricants, fuel and

coolant

• No. 2-D diesel fuel

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

Fresh clean soft water with anti-freeze

Engine oil : Refer to next page

• Above 25 °C (77 °F) SAE30, SAE10W-30 or 15W-40

• 10 to 25 °C (14 to 77 °F) SAE20, SAE10W-30 or 15W-40

•Below 10 °C (14 °F) SAE10W-30

KUBOTA UDT or SUPER UDT fluid*

KUBOTA UDT or SUPER UDT fluid* or SAE80 SAE90 gear oil

Greasing No. of greasing point Capacity