Руководство по ремонту кубота v2203

Manual_Kubota_V2203

Short Description

Description

DIESEL ENGINE 03-M-E3B SERIES, 03-M-DI-E3B SERIES, 03-M-E3BG SERIES

KiSC issued 07, 2008 A

TO THE READER This Workshop Manual has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of 03-M-E3B, 03-M-DI-E3B and 03-M-E3BG series. It is divided into three parts, “General”, “Mechanism” and “Servicing”. Q General Information on the engine identification, the general precautions, maintenance check list, check and maintenance and special tools are described. Q 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 Mechanism Workshop Manual (Code No. 9Y021-01875) for the one which has not been described to this workshop manual. Q Servicing Information on the troubleshooting, servicing specification lists, tightening torque, 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. Due to covering many models of this manual, information or picture being used, have not been specified as one model. March 2007 © KUBOTA Corporation 2007

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM SAFETY INSTRUCTIONS

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 attempt 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.

BEFORE SERVICING AND REPAIRING • Read all instructions and safety instructions in this manual and on your engine safety decals. • Clean the work area and engine. • Park the machine on a firm and level ground. • Allow the engine to cool before proceeding. • Stop the engine, and remove the key. • Disconnect the battery negative cable. • Hang a “DO NOT OPERATE” tag in operator station.

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

SAFETY STARTING • Do not start the engine by shorting across starter terminals or bypassing the safety start switch. • Unauthorized modifications to the engine may impair the function and / or safety and affect engine life.

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 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) under pressure can penetrate the skin causing serious injury. Relieve pressure before disconnecting hydraulic or fuel lines. Tighten all connections before applying pressure. • Wear a suitable hearing protective device such as earmuffs or earplugs to protect against objectionable or uncomfortable loud noises. • Do not open high-pressure fuel system. High-pressure fluid remaining in fuel lines can cause serious injury. Do not disconnect or attempt to repair fuel lines, sensors, or any other components between the high-pressure fuel pump and injectors on engines with high pressure common rail fuel system. • High voltage exceeding 100 V is generated in the ECU, and is applied to the injector. Pay sufficient caution to electric shock when performing work activities.

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

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 battery, especially when charging the battery. • Make sure that no fuel has been spilled on the engine.

VENTILATE WORK AREA • If the engine must be running to do some work, make sure the area is well ventilated. Never run the engine in a closed area. The exhaust gas contains poisonous carbon monoxide.

PREVENT ACID BURNS • Sulfuric acid in battery electrolyte is poisonous. 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 protection regulations when disposing of oil, fuel, coolant, electrolyte and other harmful waste.

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

PREPARE FOR EMERGENCIES • Keep a first aid kit and fire extinguisher handy at all times. • Keep emergency numbers for doctors, ambulance service, hospital and fire department near your telephone.

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders

Vertical, Water-cooled, 4 cycle diesel engine

83.0 X 92.4 mm (3.27 X 3.64 in.)

87.0 X 92.4 mm (3.43 X 3.64 in.) 1647 cm3 (100.5 cu.in.)

ISO Net Continuous

19.5 KW / 2800 min-1 (rpm) (26.1 HP / 2800 min-1 (rpm))

21.2 KW / 2800 min-1 (rpm) (28.4 HP / 2800 min-1 (rpm))

ISO/SAE Net Intermittent

22.4 KW / 2800 min-1 (rpm) (30.0 HP / 2800 min-1 (rpm))

24.4 KW / 2800 min-1 (rpm) (32.7 HP / 2800 min-1 (rpm))

SAE Gross Intermittent

23.8 KW / 2800 min-1 (rpm) (31.9 HP / 2800min-1 (rpm))

26.1 KW / 2800 min-1 (rpm) (35.0 HP / 2800 min-1 (rpm)) 3020 min-1 (rpm)

Maximum Bare Speed

750 to 850 min-1 (rpm)

Minimum Bare Idling Speed Combustion Chamber

Spherical Type (E-TVCS)

Fuel Injection Pump

PFR 3M Type Mini Pump (DENSO)

Mechanical all speed governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

OPD Mini Nozzle (DENSO) 0.2662 rad (15.25 °) before T.D.C.

Injection Timing Firing Order

0.2836 rad (16.25 °) before T.D.C. 1-2-3

13.73 MPa (140.0 kgf/cm2, 1991 psi)

Injection Pressure Compression Ratio

22.0 : 1 Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 60 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10275180

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders Type

3 Vertical, Water-cooled, 4 cycle diesel engine

87.0 X 102.4 mm (3.43 X 4.031 in.)

1826 cm3 (111.4 cu.in.)

ISO Net Continuous

22.8 KW / 2700 min-1 (rpm) (30.6 HP / 2700 min-1 (rpm))

ISO/SAE Net Intermittent

26.3 KW / 2700 min-1 (rpm) (35.3 HP / 2700 min-1 (rpm))

SAE Gross Intermittent

27.9 KW / 2700 min-1 (rpm) (37.4 HP / 2700 min-1 (rpm))

Maximum Bare Speed

3020 min-1 (rpm) 750 to 850 min-1 (rpm)

Minimum Bare Idling Speed Combustion Chamber

Spherical Type (E-TVCS)

Fuel Injection Pump

PFR 3M Type Mini Pump (DENSO)

Mechanical all speed governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

OPD Mini Nozzle (DENSO)

0.2836 rad (16.25 °) before T.D.C.

1-2-3 13.73 MPa (140.0 kgf/cm2, 1991 psi)

Injection Pressure Compression Ratio

Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 92 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10316200

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders

Vertical, Water-cooled, 4 cycle diesel engine

83.0 X 92.4 mm (3.27 X 3.64 in.)

87.0 X 92.4 mm (3.43 X 3.64 in.)

2197 cm3 (134.1 cu.in.)

1999 cm (122.0 cu.in.) min-1

ISO Net Continuous

26.7 KW / 2800 (rpm) (35.8 HP / 2800 min-1 (rpm))

29.6 KW / 2800 min-1 (rpm) (39.7 HP / 2800 min-1 (rpm))

ISO/SAE Net Intermittent

30.8 KW / 2800 min-1 (rpm) (41.3 HP / 2800 min-1 (rpm))

34.1 KW / 2800 min-1 (rpm) (45.7 HP / 2800 min-1 (rpm))

SAE Gross Intermittent

32.6 KW / 2800 min-1 (rpm) (43.7 HP / 2800 min-1 (rpm))

35.9 KW / 2800 min-1 (rpm) (48.1 HP / 2800 min-1 (rpm)) 3020 min-1 (rpm)

Maximum Bare Speed

750 to 850 min-1 (rpm)

Minimum Bare Idling Speed Combustion Chamber

Spherical Type (E-TVCS)

Fuel Injection Pump

PFR 4M Type Mini Pump (DENSO)

Mechanical all speed governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

OPD Mini Nozzle (DENSO)

0.2836 rad (16.25 °) before T.D.C.

1-3-4-2 13.73 MPa (140.0 kgf/cm2, 1991 psi)

Injection Pressure Compression Ratio

22.0 : 1 Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 88 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10384770

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders Type

4 Vertical, Water-cooled, 4 cycle diesel engine

87.0 X 102.4 mm (3.43 X 4.031 in.) 2434 cm3 (148.5 cu.in.)

Total Displacement ISO Net Continuous

30.2 KW / 2700 (rpm) (40.5 HP / 2700 min-1 (rpm))

36.4 KW / 2700 min-1 (rpm) (48.8 HP / 2700 min-1 (rpm))

ISO/SAE Net Intermittent

34.8 KW / 2700 min-1 (rpm) (46.7 HP / 2700 min-1 (rpm))

41.9 KW / 2700 min-1 (rpm) (56.2 HP / 2700 min-1 (rpm))

SAE Gross Intermittent

36.5 KW / 2700 min-1 (rpm) (48.9 HP / 2700 min-1 (rpm))

44.0 KW / 2700 min-1 (rpm) (59.0 HP / 2700 min-1 (rpm))

Maximum Bare Speed

Minimum Bare Idling Speed

750 to 850 min (rpm)

Spherical Type (E-TVCS)

Fuel Injection Pump

PFR 4M Type Mini Pump (DENSO)

Mechanical all speed governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

OPD Mini Nozzle (DENSO) 0.2836 rad (16.25 °) before T.D.C.

Injection Timing Firing Order

0.14 rad (8.3 °) before T.D.C. 1-3-4-2

13.73 MPa (140.0 kgf/cm2, 1991 psi)

Injection Pressure Compression Ratio

23.0 : 1 Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 92 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.) Weight (Dry)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10334350

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders Type

3 Vertical, Water-cooled, 4 cycle diesel engine

87.0 X 102.4 mm (3.43 X 4.031 in.)

1826 cm3 (111.4 cu.in.)

ISO Net Continuous

23.2 KW / 2700 min-1 (rpm) (31.1 HP / 2700 min-1 (rpm))

ISO/SAE Net Intermittent

26.7 KW / 2700 min-1 (rpm) (35.8 HP / 2700 min-1 (rpm))

SAE Gross Intermittent

27.9 KW / 2700 min-1 (rpm) (37.4 HP / 2700 min-1 (rpm))

Maximum Bare Speed

2920 min-1 (rpm) 850 to 950 min-1 (rpm)

Minimum Bare Idling Speed Combustion Chamber

Reentrant Type (Direct Injection)

Fuel Injection Pump

Bosch “K” Type Mini Pump

Mechanical all speed governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

Bosch “P” Type Hole Nozzle

0.087 rad (5.0 °) before T.D.C.

Firing Order Injection Pressure

18.63 MPa (190.0 kgf/cm2, 2702 psi)

22.56 MPa (230.0 kgf/cm2, 3271 psi)

Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 88 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10343470

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders Type

4 Vertical, Water-cooled, 4 cycle diesel engine

87.0 X 102.4 mm (3.43 X 4.031 in.) 2434 cm3 (148.5 cu.in.)

Total Displacement ISO Net Continuous

30.5 KW / 2700 (rpm) (40.9 HP / 2700 min-1 (rpm))

30.7 KW / 2400 min-1 (rpm) (41.2 HP / 2400 min-1 (rpm))

ISO/SAE Net Intermittent

35.1 KW / 2700 min-1 (rpm) (47.1 HP / 2700 min-1 (rpm))

35.3 KW / 2400 min-1 (rpm) (47.3 HP / 2400 min-1 (rpm))

SAE Gross Intermittent

36.5 KW / 2700 min-1 (rpm) (48.9 HP / 2700 min-1 (rpm))

36.5 KW / 2400 min-1 (rpm) (48.9 HP / 2400 min-1 (rpm))

Maximum Bare Speed

Minimum Bare Idling Speed

Reentrant Type (Direct Injection)

Fuel Injection Pump

Bosch “K” Type Mini Pump

Mechanical all speed governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

Bosch “P” Type Hole Nozzle 0.087 rad (5.0 °) before T.D.C.

Injection Timing Firing Order Injection Pressure

850 to 950 min (rpm)

0.096 rad (5.5 °) before T.D.C. 1-3-4-2

18.63 MPa (190.0 kgf/cm2, 2702 psi)

22.56 MPa (230.0 kgf/cm2, 3271 psi)

20.2 : 1 Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 92 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

9.5 L (2.5 U.S.gals) 184 kg (406 lbs)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10452650

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders Type

3 Vertical, Water-cooled, 4 cycle diesel engine

87.0 X 92.4 mm (3.43 X 3.64 in.) 1647 cm3 (100.5 cu.in.)

Total Displacement min-1

ISO Net Continuous

14.0 KW / 1500 (rpm) (18.8 HP / 1500 min-1 (rpm))

16.9 KW / 1800 min-1 (rpm) (22.7 HP / 1800 min-1 (rpm))

ISO/SAE Net Intermittent

16.1 KW / 1500 min-1 (rpm) (21.6 HP / 1500 min-1 (rpm))

19.5 KW / 1800 min-1 (rpm) (26.1 HP / 1800 min-1 (rpm))

SAE Gross Intermittent

16.6 KW / 1500 min-1 (rpm) (22.3 HP / 1500 min-1 (rpm))

20.2 KW / 1800 min-1 (rpm) (27.1 HP / 1800 min-1 (rpm))

Maximum Bare Speed

Minimum Bare Idling Speed

Spherical Type (E-TVCS)

Fuel Injection Pump

PFR 3M Type Mini Pump (DENSO)

Mechanical all speed governor + Electronic Governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

OPD Mini Nozzle (DENSO)

0.2487 rad (14.25 °) before T.D.C.

1-2-3 13.73 MPa (140.0 kgf/cm2, 1991 psi)

Injection Pressure Compression Ratio

Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 60 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10336120

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders Type

4 Vertical, Water-cooled, 4 cycle diesel engine

83.0 X 92.4 mm (3.27 X 3.64 in.) 1999 cm3 (122.0 cu.in.)

Total Displacement min-1

ISO Net Continuous

17.5 KW / 1500 (rpm) (23.5 HP / 1500 min-1 (rpm))

20.3 KW / 1800 min-1 (rpm) (27.2 HP / 1800 min-1 (rpm))

ISO/SAE Net Intermittent

20.1 KW / 1500 min-1 (rpm) (27.0 HP / 1500 min-1 (rpm))

23.4 KW / 1800 min-1 (rpm) (31.4 HP / 1800 min-1 (rpm))

SAE Gross Intermittent

20.6 KW / 1500 min-1 (rpm) (27.6 HP / 1500 min-1 (rpm))

24.3 KW / 1800 min-1 (rpm) (32.6 HP / 1800 min-1 (rpm))

Maximum Bare Speed

Minimum Bare Idling Speed

Spherical Type (E-TVCS)

Fuel Injection Pump

PFR 4M Type Mini Pump (DENSO)

Mechanical all speed governor + Electronic Governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

OPD Mini Nozzle (DENSO)

0.2487 rad (14.25 °) before T.D.C.

1-3-4-2 13.73 MPa (140.0 kgf/cm2, 1991 psi)

Injection Pressure Compression Ratio

Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 88 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10389960

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders Type

4 Vertical, Water-cooled, 4 cycle diesel engine

83.0 X 92.4 mm (3.27 X 3.64 in.) 1999 cm3 (122.0 cu.in.)

Total Displacement min-1

ISO Net Continuous

22.3 KW / 1500 (rpm) (29.9 HP / 1500 min-1 (rpm))

25.7 KW / 1800 min-1 (rpm) (34.5 HP / 1800 min-1 (rpm))

ISO/SAE Net Intermittent

25.7 KW / 1500 min-1 (rpm) (34.5 HP / 1500 min-1 (rpm))

29.6 KW / 1800 min-1 (rpm) (39.7 HP / 1800 min-1 (rpm))

SAE Gross Intermittent

26.2 KW / 1500 min-1 (rpm) (35.1 HP / 1500 min-1 (rpm))

30.6 KW / 1800 min-1 (rpm) (41.0 HP / 1800 min-1 (rpm))

Maximum Bare Speed

Minimum Bare Idling Speed

Spherical Type (E-TVCS)

Fuel Injection Pump

PFR 4M Type Mini Pump (DENSO)

Mechanical all speed governor + Electronic Governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

OPD Mini Nozzle (DENSO)

0.2662 rad (15.25 °) before T.D.C.

1-3-4-2 13.73 MPa (140.0 kgf/cm2, 1991 psi)

Injection Pressure Compression Ratio

Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 88 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10413710

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders Type

4 Vertical, Water-cooled, 4 cycle diesel engine

87.0 X 92.4 mm (3.43 X 3.64 in.) 2197 cm3 (134.1 cu.in.)

Total Displacement min-1

ISO Net Continuous

18.8 KW / 1500 (rpm) (25.2 HP / 1500 min-1 (rpm))

22.6 KW / 1800 min-1 (rpm) (30.3 HP / 1800 min-1 (rpm))

ISO/SAE Net Intermittent

21.7 KW / 1500 min-1 (rpm) (29.1 HP / 1500 min-1 (rpm))

26.0 KW / 1800 min-1 (rpm) (34.9 HP / 1800 min-1 (rpm))

SAE Gross Intermittent

22.2 KW / 1500 min-1 (rpm) (29.8 HP / 1500 min-1 (rpm))

26.9 KW / 1800 min-1 (rpm) (36.1 HP / 1800 min-1 (rpm))

Maximum Bare Speed

Minimum Bare Idling Speed

Spherical Type (E-TVCS)

Fuel Injection Pump

PFR 4M Type Mini Pump (DENSO)

Mechanical all speed governor + Electronic Governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

OPD Mini Nozzle (DENSO)

0.2487 rad (14.25 °) before T.D.C.

1-3-4-2 13.73 MPa (140.0 kgf/cm2, 1991 psi)

Injection Pressure Compression Ratio

Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 88 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10419300

KiSC issued 07, 2008 A

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM

Number of Cylinders Type

4 Vertical, Water-cooled, 4 cycle diesel engine

87.0 X 102.4 mm (3.43 X 4.031 in.) 2434 cm3 (148.5 cu.in.)

Total Displacement min-1

ISO Net Continuous

21.5 KW / 1500 (rpm) (28.8 HP / 1500 min-1 (rpm))

25.1 KW / 1800 min-1 (rpm) (33.7 HP / 1800 min-1 (rpm))

ISO/SAE Net Intermittent

24.8 KW / 1500 min-1 (rpm) (33.3 HP / 1500 min-1 (rpm))

28.9 KW / 1800 min-1 (rpm) (38.8 HP / 1800 min-1 (rpm))

SAE Gross Intermittent

25.3 KW / 1500 min-1 (rpm) (33.9 HP / 1500 min-1 (rpm))

29.8 KW / 1800 min-1 (rpm) (40.0 HP / 1800 min-1 (rpm))

Maximum Bare Speed

Minimum Bare Idling Speed

Spherical Type (E-TVCS)

Fuel Injection Pump

PFR 4M Type Mini Pump (DENSO)

Mechanical all speed governor + Electronic Governor

Direction of Rotation

Counter-clockwise (viewd from flywheel side)

OPD Mini Nozzle (DENSO)

0.2487 rad (14.25 °) before T.D.C.

1-3-4-2 13.73 MPa (140.0 kgf/cm2, 1991 psi)

Injection Pressure Compression Ratio

Forced Lubrication by Trochoid Pump

Oil Pressure Indicating

Electrical type switch

Full flow paper filter (cartridge type)

Pressurized radiator, forced circulation with water pump

Electric Starting with Starter

Starting Support Device

By glow plug in combustion chamber

12 V, 88 AH equivalent

Diesel Fuel No.2-D (ASTM D975)

Lubricating Oil Lubricating Oil Capacity

Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-7, 10 Oil Pan Depth 90 mm (3.5 in.)

Oil Pan Depth 124 mm (4.88 in.)

* The specification described above is of the standard engine of each model. * Conversion Formula : HP = 0.746 kW, PS = 0.7355 kW W10424850

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  Contents Page No.

  Machine / Engine Type Table A.3

  Kubota Technical Data — V2203-B A.3

  Engine Maintenance Chart — V2203-B A.4

  Recommended Fluids A.4

  Machine / Engine Type Table A.5

  Kubota Technical Data — V2203M-T A.5

  Engine Maintenance Chart — V2203M-T A.6

  Recommended Fluids A.7

  Cooling System A.7 — A.10

  Cooling System A.7

  Thermostats Valve Opening Temperature A.8

  Fan Belt Tension A.9

  Checking Fan Belt Damage A.9

  Recommended Fluids A.10

  Radiator & Radiator Cap A.11

  Radiator Water Leakage A.11

  Radiator Cap Air Leakage A.11

  Lubrication System A.12Oil Filter Cartridge A.12

  Lubrication Oil Flows A.13

  Engine Oil Flow A.13

  Oil Pressure Switch A.14

  Checking Engine Oil Pressure A.15

  Fuel System A.15Glow Plugs & Cylinder Heads A.16

  Glow Plug A.16

  Cylinder Heads A.16

  SECTION A

  ENGINE: KUBOTA

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  Contents Page No.

  Valve Clearance — V2203-B A.17

  Valve Clearance — V2203M-T A.18

  Trouble Shooting A.19 — A.21

  Torque Figures — V2203-B A.22

  Torque Figures — V2203M-T A.23 — A.24

  Special Tools A.25 — A.27

  Flywheel Puller A.25

  Special-Use Puller Set A.25

  Valve Cutter Set A.25

  Diesel Engine Compression Tester A.26

  Oil Pressure Test A.26

  Connecting Rod Alignment Tool A.26Press Gauge A.27

  Red Check A.27

  Trouble Shooting A.28 — A.30

  SECTION A

  ENGINE: KUBOTA

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  V2203-B

  Thermostat Temperature Opening: 82C(180F)

  Completely open: 95C(203F)

  Radiator Cap Pressure 1.1 Bar

  15 psi

  Injector Pressure 150 Bar

  2133 psi

  Fan Belt Tension Deflection: 7 — 9 mm (0.28-0.35)

  Force: 10 kgf (22lbf)

  Valve Clearance (cold) 0.15 mm

  0.006

  Oil Pressure — idle 0.5 Bar

  7.0 psi

  Oil Pressure — Rated speed 2.5-4.5 Bar

  36-64 psi

  Machine/Engine Type Table

  Kubota Technical Data

  Machine Code Engine

  950 V2203-B

  994 / 653 V2003M-T

  Before working on an engine, make the machine safe to work
  on.

  A.3

  ENGINE: KUBOTA

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  ENGINE: KUBOTA

  A.4

  * Change engine oil after the first 50 hours of operation.

  CAUTIONWhen Changing or inspecting, be sure to level and stop
  the engine, and apply parking brake.

  OIL TYPE

  Engine oil should be MIL-L-46152 / MIL-L-2104C or have
  properties of API classification cc/cd grades.

  Change the type of engine oil according to the ambient
  temperature.

  Above 25C (77F) — SAE 30 or 10W-30

  0C to 25C (32-77F) — SAE 20 or 10W-30

  Below 0C (32F) — SAE 10W or 10W-30

  ANTIFREEZE

  Antifreeze should always be mixed with water at a 50% mixture
  for general purposes.

  Antifreeze is poisonous and can cause irreversible nervous
  system damage if ingested.

  To maintain long-lasting and safe engine performance, make it a
  rule to carry out regular in spections by following the

  table below.

  Engine Maintenance Chart — V2203

  Recommended Fluids

  SERVICE INTERVAL

  ITEM EVERY EVERY EVERY EVERY EVERY EVERY EVERY EVERY EVERY50hrs
  100hrs 150hrs 400hrs 800hrs 1000hrs THREE ONE TWO

  MONTHS YEAR YEARS

  Checking fuel pipes and clamps

  Changing engine oil *

  Cleaning air filter element

  Cleaning fuel filter

  Checking fan belt tension and damage

  Checking water pipes and clamps

  Changing oil filter cartridge

  Changing fuel filter element

  Cleaning radiator interior

  Changing radiator cleaner and coolant

  Changing air filter element

  Checking valve clearance

  Checking nozzle injection pressure

  Changing water pipes and clampsChanging fuel pipes and
  clamps

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  A.5

  ENGINE: KUBOTA

  V2003M-T

  Thermostat Temperature Opening: 69C(162F)

  Completely open: 88C(185F)

  Radiator Cap Pressure 0.9 Bar

  13 psi

  Injector Pressure 150 Bar

  2133 psi

  Fan Belt Tension Deflection: 7 — 9 mm (0.28-0.35)

  Force: 10 kgf (22lbf)

  Valve Clearance (cold) 0.18 — 0.22 mm

  0.0071 — 0.0087

  Oil Pressure — idle 1.0 Bar

  14 psi

  Oil Pressure — Rated speed 3.0-4.5 Bar

  42-64 psi

  Machine/Engine Type Table

  Kubota Technical Data

  Machine Code Engine

  950 V2203-B

  994 / 653 V2003M-T

  Before working on an engine, make the machine safe to work
  on.

  CAUTIONWhen Changing or inspecting, be sure to level and stop
  the engine, and apply parking brake.

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  ENGINE: KUBOTA

  A.6

  Change engine oil and replace oil filter cartridge after the
  first 50 hours of operation.The items listed above (* marked) are
  registered as emission related critical parts by KUBOTA in the U.S.
  EPA non-road emission regulation. As the engine owner, you are
  responsible for the performance of the required maintenanceon the
  engine according to the above instruction.

  To maintain long-lasting and safe engine performance, make it a
  rule to carry out regular in spections by following the

  table below.

  Engine Maintenance Chart — V2003M-T

  SERVICE INTERVAL ITEM 50hrs 100hrs 150hrs 200hrs 400hrs 500hrs 1
  or 2 1 Year 800hrs 1500hrs 3000hrs 2yrs

  Mths

  Checking fuel hoses &

  clamps

  Changing engine oil

  (1) Oil pan depth (90mm)

  (2) Oil pan depth (124mm)

  Cleaning air filter element

  (replace after cleaning x 6)

  Cleaning fuel filter

  (Element type)

  Checking battery electrolyte

  level

  Checking fan belt tension

  and damage

  Replacing oil filter cartridge

  (1) Oil pan depth (90mm)

  (2) Oil pan depth (124mm)

  Cleaning radiator hoses &

  clamp bands

  *Checking intake air line

  Replacing fuel filtercartridge

  Cleaning water jacket &

  radiator interior

  Replacing fan belt

  Recharging battery

  *Replacing air cleaner

  element

  Checking valve clearance

  *Checking injection nozzle

  condition

  *Checking turbocharger

  *Checking injection pump

  *Replacing intake air line

  Replacing battery

  Replacing radiator hoses &

  clamp bands

  *Replacing fuel hoses &

  clamps

  Changing radiator coolant

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  A.7

  ENGINE: KUBOTA

  Cooling System

  (1) Radiator

  (2) Suction Fan

  (3) Thermostat

  (4) Water Pump(5) Cylinder Head

  (6) Cylinder Block

  The cooling system consists of a radiator (1) (not included in
  the basic engine), centrifugal water pump (4), suction fan

  (2) and thermostat (3). The water is cooled through the radiator
  core, and the fan set behind the radiator pulls cooling

  air through the core to improve cooling. The water pump sucks
  the cooled water, forces it into the cylinder block and

  draws out the hot water. Then the cooling is repeated.
  Furthermore, to control temperature of water, a thermostat is

  provided in the system. When the thermostat opens, the water
  moves directly to the radiator, but when it closes, the water

  moves towards the water pump through the bypass between
  thermostat and water pump. The opening temperature of

  thermostat is approx. 82C (180F).

  The thermostat maintains the cooling water at correct
  temperature. KUBOTAS engine uses a wax pellet type ther-

  mostat. Wax is enclosed in the pellet. The wax is solid at low
  temperatures, but turns liquid at high temperatures,

  expands and opens the valve.

  a At low temperatures (lower then 82C (180F)). As the

  thermstat is closed, cooling water circulates in the engine

  through the water return pipe without running to the
  radiator.

  Air in the water jacket escapes to the radiator side through
  leak

  hole (6) of the thermostat.

  b At high temperatures (higher then 82C (180F)). When the

  temperature of cooling water exceeds 82C (180F), wax in the

  pellet turns liquid and expands. Because the spindle (4) is

  fixed, the pellet (3) is lowered, the valve (2) is separated
  from

  the seat (1), and then cooling water is sent to the
  radiator.

  (1) Seat

  (2) Valve

  (3) Pellet

  (4) Spindle

  (5) Synthetic Rubber

  (6) Leak Hole

  (7) Wax (solid)

  (8) Wax (liquid)

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  ENGINE: KUBOTA

  A.8

  1 Push down the thermostat valve and insert a string between the
  valve and valve seat.

  2 Place the thermostat and a thermometer in a container with
  water and gradually heat the water.

  3 Hold the string to suspend the thermostat in the water. When
  the water temperature rises, the thermostat valve

  will open, allowing it to fall down from the string. Read the
  temperature at the moment on the thermometer.

  4 Continue heating the water and read the temperature when the
  valve has risen by about 6mm (0.236 in.).

  5 If the measurement is not acceptable, replace the
  thermostat.

  Danger, hot or boiling water can seriously scald and burn.

  Thermostats Valve Opening Temperature

  Thermostats valve opening

  temperature

  Factory spec. 80.5 to 83.5C

  176.9 to 182.3F

  Temperature at which

  thermostat completely opens

  Factory spec. 95C

  203F

  Cooling System

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  A.9

  ENGINE: KUBOTA

  1 Press the fan belt between fan pulley and pulley with your
  finger

  at force of 10 kgf (98N, 22 lbs).

  Check if the fan belt deflection is 7 to 9 mm (0.28 to 0.35
  in.).

  2 If the deflection is not within the factory specifications,
  adjust

  with the tension pulley adjusting nut.

  1 Check the fan belt for damage.

  2 Check if the fan belt is worn and sunk in the pulley
  groove.

  3 Replace the fan belt if the belt is damaged or nearly worn out
  and

  deeply sunk into the pulley groove

  4 Replace cracked or de-laminating belts.

  Fan Belt Tension

  Checking Fan Belt Damage

  Fan Belt

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  ENGINE: KUBOTA

  A.10

  OIL TYPE

  Engine oil should be CF-4, CG-4 for low sulphur fuel on-road
  engines or have properties of API classification cc/

  cd grades. When an off-road vehicle engine runs on high sulphur
  fuel, it is advisable to use CF, CD or CE lubricat-ing oil with a
  high total base number.

  Change the type of engine oil according to the ambient
  temperature.

  Above 25C (77F) — SAE 30 or 10W-30

  0C to 25C (32-77F) — SAE 20 or 10W-30

  Below 0C (32F) — SAE 10W or 10W-30

  ANTIFREEZE

  Antifreeze should always be mixed with water at a 50% mixture
  for general purposes.

  Antifreeze is poisonous and can cause irreversible nervous
  system damage if ingested.

  Recommended Fluids

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  The radiator cap is for sustaining the internal pressure of
  the

  cooling system at the specified level 88 kPa (0.9 kgf/cm2,
  13psi)

  when the engine is in operation. The cap consists of a
  pressurevalve (1) a vacuum valve (2), valve springs, gasket, etc.
  Cooling water

  is pressurised by thermal expansion of steam, and as its
  boiling

  temperature rises, generation of air bubbles will be
  suppressed.

  (Air bubbles in cooling water lowers the cooling effect)

  (A) When radiator internal pressure is high.

  (B) When radiator internal pressure is negative.

  (1) Pressure Valve

  (2) Vacuum Valve

  1 Pour a specified amount of water into the radiator.

  2 Set a radiator tester (Code No. 07909-31551). Increase

  water pressure to the specified pressure of 1.4 kgf/cm2

  (137 kPa, 20 psi).

  3 Check each section for water leakage.

  4 When water leakage is excessive, replace the radiator.

  If water leakage is caused by a small pinhole, correct

  the radiator with radiator cement.

  1 Set a radiator tester (Code No. 07909-31551) to the radiator
  cap.

  2 Apply the specified pressure of 0.9 kgf/cm2(98.1 kPa, 12.8
  psi).

  3 Check if the pressure drops to less then 0.6 kgf/cm2

  (59 kPa, 9 psi) in 10 seconds.

  4 If the pressure is less than the factory specification,
  replace it.

  Radiator & Radiator Cap

  ENGINE: KUBOTA

  Radiator Water Leakage

  Radiator Cap Air Leakage

  A.11

  (B)

  (A)

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  This engines lubricating system consists of oil strainer, oil
  pump,

  relief valve, oil filter cartridge and oil switch. The oil pump
  sucks

  lubricating oil from the oil pan through the oil strainer and
  the oil flowsdown to the filter cartridge, where it is further
  filtered. Then the oil is

  forced to crankshaft, connecting rods, idle gear, camshaft and
  rocker

  arm shaft to lubricate each part. The crankshaft can cause
  splash

  lubrication for some of the lower engine part.

  Impurities in engine oil can cause wear and seize components as
  well

  as impairing the physical and chemical properties of the oil
  itself.Impurities contained in force-fed engine oil are absorbed on
  the filter

  paper for removal as they pass through the filter element (2).
  When

  the filter element is clogged and the oil pressure in the inlet
  line builds

  up to 98 kPa (1.0 kgf/cm2, 14 psi) more than the outlet line,
  the bypass

  valve (1) opens and the oil flows from inlet to outlet bypassing
  the

  filter element.

  (1) Bypass valve

  (2) Filter element

  Lubrication System

  Oil Filter Cartridge

  (A) Oil Pump

  (B) Oil Strainer

  (C) Rocker Arm and

  Rocker Arm Shaft

  (D) Piston(E) Camshaft

  (F) Oil Filter Cartridge

  and Relief Valve

  ENGINE: KUBOTA

  A.12

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  Lubrication Oil Flows

  ENGINE: KUBOTA

  Engine Oil Flow

  A.13

  (1) Oil Pan (9) Big End (17) Camshaft Bearing

  (2) Oil Strainer (10) Timing Gear (18) Camshaft

  (3) Oil Pump (11) Splash (19) Drain

  (4) Relief Valve (12) Bore (20) Rocker Arm

  (5) Oil Filter Cartridge (13) Small End (21) Oil Switch

  (6) Idle Gear (14) Piston (22) Rocker Arm Shaft

  (7) Main Oil Gallery (15) Fuel Camshaft

  (8) Main bearing (16) Tappets

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  1 Terminal

  2 Insulator

  3 Spring

  4 Diaphragm

  5 Contact Rivet

  6 Contact

  7 Oil Switch Body

  (A) At Proper Oil Pressure

  (B)At Oil Pressures of 49 kPa

  (0.5 kgf/cm2, 7 psi) or less

  The oil pressure switch is mounted on the cylinder block, to
  warn the

  operator that the lubricating oil pressure is poor.

  If the oil pressure falls below 49 kPa (0.5 kgf/cm2, 7psi), the
  oil

  warning lamp will light up, warning the operator. In this case,
  stop the

  engine immediately and check the cause of the pressure drop.

  Oil Pressure Switch

  (B)

  (A)

  ENGINE: KUBOTA

  A.14

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  1 Remove the oil switch and set a pressure tester (Code No.
  07916-32031).

  2 Start the engine. After warming up, measure the oil pressure
  of both idling and rated

  speeds.

  3 If the oil pressure is less than the allowable limit,
  checking

  the following:

  — Engine oil insufficient

  — Oil strainer clogged

  — Excessive oil clearance of bearing

  — Foreign matter in the relief valve

  — Oil pump defective

  — Oil gallery clogged

  Danger — used engine oil contains hydro carbons and cause
  cancer, please wear suitable protective equipment.

  Fuel from the fuel tank (1) passes through the fuel filter (2),
  and then enters the injection pump (3) after impurities such

  as dirt, water, etc. are removed. The fuel pressurised by the
  injection pump to the opening pressure (13.73 to 14.71 MPa,

  140 to 150 kgf/cm2, 1991 to 2062 psi), of the injection nozzle
  (5) is injected into the combustion chamber.

  Part of the fuel fed to the injection nozzle (5) lubricates the
  moving parts of the plunger inside the nozzle, then returns

  to the fuel tank through the fuel overflow pipe (6 ) from the
  upper part of the nozzle holder.

  Danger — fuel can cause health problems if it comes into contact
  with skin

  1. Fuel Tank

  2. Fuel Filter

  3. Injection Pump

  4. Injection Pipe

  5. Injection Nozzle

  6. Fuel Overflow Pipe

  7. Fuel Feed Pump

  Checking Engine Oil Pressure

  ENGINE: KUBOTA

  Fuel System

  A.15

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  1 Disconnect the leads from the glow plugs.

  2 Measure the resistance with a circuit tester across the glow
  plug

  terminal and the housing.

  3 If 0 ohm is indicated, the screw at the tip of the glow plug
  and

  the housing are short-circuited. If the reference value is
  not

  indicated, the glow plug is faulty, replace the glow plug.

  1 Loosen the pipe band, and remove the water return pipe.

  2 Remove the cylinder head screws in the order of (14,18) to
  (1),

  and remove the cylinder head.

  3 Remove the cylinder head gasket and O-ring.

  (When Reassembling)

  — Replace the head gasket with a new one.

  — Install the cylinder head, using care not to damage the
  O-ring.

  Tighten the cylinder head screws gradually in the order of
  (1)

  to (14, 18) after applying engine oil.

  — Retighten the cylinder head screws after running the
  engine

  for 30 minutes.

  Glow Plug

  Cylinder Heads

  (A) Gear case side

  (B) Flywheel side

  Glow Plugs & Cylinder Heads

  ENGINE: KUBOTA

  A.16

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  Checking Valve Clearance — V-2203-B

  ENGINE: KUBOTA

  A.17

  The valve clearance should be checked and adjusted every 800
  hours and

  when the engine is cold.

  1. Removed the head cover.

  2. Align the 1TCmark on the flywheel housing so that the No.1
  piston

  comes to the compression top dead centre.

  3. Center the following valuve clearnace marked with using a
  feel gauge.

  Clearance : 0.145 to 0.185 mm (0.0057 to 0.0072 in.)

  (When No.1 pistion is compression top dead center position)

  Cylinder No. No.1 No.2 No.3 No.4

  Intake Valve Exhaust Valve

  4. If the clearance is not within the factory specifications,
  adjust with the

  adjusting screw.

  5. Then turn the flyweel 6.28 rad (360C), and align the 1TCmark
  on

  the flywheel and the edge on the flywheel housing so that the
  No.1

  piston comes to the overlap positions.

  6. Check the following valve clearance marked with using a
  feelergauge

  (When No.1 pistion is compression top dead center position)

  Cylinder No. No.1 No.2 No.3 No.4

  Intake Valve Exhaust Valve

  7. If the clearance is not within the factory specifications
  adjust with the

  adjusting screw with the lock nut.

  Note: After adjusting the valve clearance, secure the adjusting
  screw

  with the lock nut.

  (1) Notched Portion

  (2) TC Mark Lane

  (3) Valve Clearance

  !

  !

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  Checking Valve Clearance — V-2003M-T

  ENGINE: KUBOTA

  A.18

  IMPORTANT : Valve clearance must be checked and adjusted
  when

  engine is cold.

  1. Removed the head cover.

  2. Align the 1TCmark line (3) on the flywheel and projection
  (2)on the housing so that the No. 1 piston comes to the
  compressionor overlap top dead center.

  3. Check the following valve clearance (1) marked with using
  afeeler gauge.

  4. If the clearance is not within the factory specifications,
  adjust withthe adjusting screw.

  Valve clearance Factory spec. 0.18 to 0.22mm

  0.0071 to 0.0087in

  5. The TCmarking line on the flywheel is just for No. 1
  cylinder.There is no TCmarking for the other cylinders.

  6. No. 1 piston comes to the top dead center position when the
  TCmarking is aligned with the projection (2) in the window on the
  flywheel-housing.

  (1) Valve clearance (2) Projection (3) TC Mark Line

  7. Turn the flywheel 0.26 rad (15) clockwise and
  counterclockwiseto see if the piston is at the compression top dead
  center or theoverlap position. Now referring to the tables below,
  re-adjustthe valve clearance (1). (The piston is at the top dead
  centerwhen both the IN.and EX.valves do not move; it is at the
  overlapposition when both the valves move).

  8. Finally turn the flywheel 6.28 rad (360) and align the
  TCmarking and the projection (2) perfectly. Adjust all the other
  valveclearance as required.

  9. After turning the flywheel counterclockwise twice or three
  times,recheck the valve clearance (1).

  NOTE : After adjusting the valve clearance (1), firmly tighten
  thelock nut of the adjusting screw.

  V2003-MD1503-M V2203-M

  D1703-M V2003-M-T

  D1803-M V2403-M

  Valvearrangement

  Adjustablecylinderlocation of piston IN. EX. IN. EX.

  When No. 1 pistoncomes tocompression top

  dead center

  When No. 1 pistoncomes to overlapposition

  No. 1

  No. 2

  No. 3

  No. 4

  No. 1

  No. 2

  No. 3

  No. 4

  !

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  Trouble Shooting

  No fuel.

  Air in the fuel system.

  Water in the fuel system.

  Fuel pipe clogged.

  Fuel Filter clogged.

  Excessive high viscosity of fuel or engine oil

  at low temperature.

  Fuel with low cetane number.

  Fuel leak due to loose injection pipe retain-

  ing nut.Incorrect injection timing.

  Fuel cam shaft worn.

  Injection nozzle clogged.

  Injection pump malfunctioning.

  Seizure of crankshaft, camshaft, piston, cyl-

  inder liner or bearing.

  Compression leak from cylinder.

  Improper valve timing.

  Piston ring and liner worn.

  Excessive valve clearance.

  Battery discharge.

  Starter malfunctioning.

  Key switch malfunctioning.

  Wiring disconnected.

  Fuel filter clogged or dirty.

  Air cleaner clogged.

  Fuel leak due to loose injection pipe retain-

  ing nut.

  Injection pump malfunctioning.

  Incorrect nozzle opening pressure.

  Injection nozzle stuck or clogged.

  Fuel over flow pipe clogged.

  Governor malfunctioning.

  SYMPTOM PROBLEM CAUSE SOLUTION

  Engine does not start

  Starter does not run.

  Engine revolution is not

  smooth.

  Replenish fuel.

  Vent air.

  Change fuel and repair or replace

  fuel system.

  Clean.

  Clean or change.

  Use the specified fuel or engine oil.

  Use the specified fuel

  Tighten nut.

  Adjust.

  Replace.

  Clean.

  Repair or replace.

  Repair or replace.

  Replace head gasket, tighten cylin-

  der head bolt, glow plug and nozzle

  holder.

  Correct or replace timing gear

  Replace.

  Adjust.

  Charge.

  Repair or replace.

  Repair or replace.

  Connect.

  Clean or change.

  Clean or change.

  Tighten nut.

  Repair or replace.

  Adjust

  Repair or replace.

  Clean.

  Repair.

  ENGINE: KUBOTA

  A.19

• 7/27/2019 Kubota V2203 — Service Manual Code 950 — 994 — 653 (1)
  (1)

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  Trouble Shooting

  Reduce to the specified level.

  Repair or replace.

  Adjust.

  Adjust top clearance.

  Lessen the load.

  Use the specified fuel.

  Clean or change.

  Clean or change.

  Adjust.

  Repair or replace.Repair or replace the injection

  pump.

  Clean out fuel tank

  Re-new fuel filter

  Repair or replace the nozzle.

  Replace head gasket, tighten cylinder

  head bolt, glow plug and nozzle holder.

  Shift ring gap direction.

  Replace.

  Replace the piston

  Replace.

  Replace pump element or pump.

  Replace.

  Replace.

  Replace.

  Replenish.

  Clean.

  Clean.

  Replace.

  Replace.

  Replace.

  Replace.

  Excessive engine oil.

  Piston ring and liner worn or stuck.

  Incorrect injection timing.

  Deficient compression.

  Overload.

  Low grade fuel used.

  Fuel filter clogged.

  Air cleaner clogged.

  Incorrect injection timing.

  Engines moving parts seem to be seizing.Uneven fuel
  injection.

  Insufficient fuel available at the filter

  Insufficient fuel flow through filter

  Deficient nozzle injection.

  Compression leak.

  Piston rings gap facing the same direction.

  Oil ring worn or stuck.

  Piston ring groove and guide worn.

  Crankshaft bearing, and crank pin bearingworn.

  Injection pumps plunger worn.

  Injection pump broken.

  Head gasket defective.

  Cylinder block or cylinder head flawed.

  Engine oil insufficient

  Oil strainer clogged.

  Relief valve stuck with dirt.

  Relief valve spring weaken or broken.

  Excessive oil clearance of crankshaft bearing.

  Excessive oil clearance of crank pin bearing.

  Excessive oil clearance of rocker arm bearing.

  SYMPTOM PROBLEM CAUSE SOLUTION

  Either white or blue exhaust

  gas is observed.

  Either black or dark gray

  exhaust gas is observed.

  Deficient output.

  Excessive lubricant oil con-

  sumption.

  Fuel mixed into lubricant oil.

  Water mixed into lubricant

  oil.

  Low oil pressure.

  ENGINE: KUBOTA

  A.20

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  Trouble Shooting

  Clean.

  Use the specified type of oil.

  Repair or replace.

  Use the specified type of oil.

  Replace.

  Replenish.

  Change or adjust.

  Replenish.

  Clean.

  Clean or replace.Clean or replace.

  Replace.

  Loosen the load.

  Replace.

  Adjust

  Use the specified fuel.

  Replenish distilled water and

  charge.

  Adjust belt tension or charge.

  Connect.

  Replace.Replace.

  Change.

  Oil passage clogged.

  Different type of oil.

  Oil pump defective.

  Different type of oil.

  Relief valve defective.

  Engine oil insufficient.

  Fan belt broken or elongated.

  Cooling water insufficient.

  Radiator net and radiator fin clogged with dust.

  Inside of radiator corroded.Cooling water flow route
  corroded.

  Radiator cap defective.

  Overload running.

  Head gasket defective.

  Incorrect injection timing.

  Unsuitable fuel used.

  Battery electrolyte insufficient.

  Fan belt slips.

  Wiring disconnected.

  Rectifier defective.Alternator defective.

  Battery defective.

  SYMPTOM PROBLEM CAUSE SOLUTION

  Low oil pressure

  Continued….

  High oil pressure.

  Engine overheated.

  Battery quickly dis-

  charge.

  A.21

  ENGINE: KUBOTA

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  (1)

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  ENGINE: KUBOTA

  A.22

  Torque Figures — V2203-B

  (1) Tightening torques for special use screws, bolts and
  nuts.

  NOTE: For * marked screws, bolts and nuts on the table, apply
  engine oil to their threads and seats before tightening.

  After well cleaning its thread and bearing surface, fit a new
  head bolt (rust-preventive oil applied) without applying

  engine oil to it.

  When reusing the head bolt, apply engine oil to its thread and
  bearing surface before fitting it. After installing the engine,

  let it run for 30 minutes, and retighten the head bolt. (Before
  retightening it, loosen it by 30 to 90 degrees).

  (2) Tightening torques for general use screws, bolts and
  nuts.

  When the tightening torques are not specified, tighten the
  screws, bolts and nuts according to the table below.

  Screw and bolt material grades are shown by numbers punched on
  the screw and bolt heads. Prior to tightening, be sure

  to check out the numbers as shown below.

  Item Size x Pitch Nm kgf m ft-lbs

  Head cover cap nuts.

  Head bolts

  Bearing case bolts 1

  Bearing case bolts 2 Flywheel bolts

  Connecting rod bolts

  (Non flange bolt)

  (Flange bolt)

  Rocker arm bracket nuts

  Idle gear shaft bolts

  Crankshaft end nut

  Crankshaft end bolt (F2803-B)

  Glow plugs

  Nozzle holder assembly

  Oil switch taper screw

  Injection pipe retaining nuts

  M8 x 1.25

  M11 x 1.25

  M9 x 1.25

  M10 x 1.25M12 x 1.25

  M8 x 1.0

  M8 x 1.0

  M8 x 1.25

  M8 x 1.25

  M30 x 1.5

  M30 x 1.5

  M10 x 1.25

  M20 x 1.5

  PT 1/8

  M12 x 1.5

  6.9 to 8.8

  93.1 to 98.0

  46.1 to 50.9

  68.6 to 73.598.0 to 107.8

  36.3 to 41.2

  44.1 to 49.0

  22.5 to 27.5

  22.5 to 27.5

  137.3 to 156.9

  196.1 to 215.8

  19.6 to 24.5

  49.0 to 68.6

  14.7 to 19.6

  24.5 to 34.3

  0.7 to 0.9

  9.5 to 10.0

  4.7 to 5.2

  7.0 to 7.510.0 to 11.0

  3.7 to 4.2

  4.5 to 5.0

  2.4 to 2.8

  2.4 to 2.8

  14.0 to 16.0

  20.0 to 22.0

  2.0 to 2.5

  5.0 to 7.0

  1.5 to 2.0

  2.5 to 3.5

  5.1 to 6.5

  68.7 to 72.3

  34.0 to 37.6

  50.6 to 54.272.3 to 79.5

  26.6 to 30.4

  32.5 to 36.2

  17.4 to 20.3

  17.4 to 20.3

  101.2 to 115.7

  144.7 to 159.1

  14.5 to 18.1

  36.2 to 50.6

  10.8 to 14.5

  18.1 to 25.3

  *

  Grad Standard Screw and Bolt Special Screw and Bolt

  4 7

  Nominal

  Diameter Unit Nm kgf.m ft-lbs Nm kgf.m ft-lbs

  M6 7.9 to 9.3 0.80 to 0.95 5.8 to 6.9 9.8 to 11.3 1.00 to 1.15
  7.23 to 8.32

  M8 17.7 to 20.6 1.8 to 2.1 13.0 to 15.2 23.5 to 27.5 2.4 to 2.8
  17.4 to 20.3

  M10 39.2 to 45.1 4.0 to 4.6 28.9 to 33.3 48.1 to 55.9 4.9 to 5.7
  35.4 to 41.2

  M12 62.8 to 72.6 6.4 to 7.4 46.3 to 53.5 77.5 to 90.2 7.9 to 9.2
  57.1 to 66.5

  Punched Number Screw and Bolt Material Grade

  None or 4 Standard Screw and Bolt SS41, S20C

  7 Special Screw and bolt S43C, S48C (refined)

  **

  *

  **

  **

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  A.23

  ENGINE: KUBOTA

  Torque Figures — V2003M-T

  (1) Tightening torques for special use screws, bolts and
  nuts.

  NOTE: For * marked screws, bolts and nuts on the table, apply
  engine oil to their threads and seats before tightening.

  The letter M in Size x Pitch means that the screw, bolt or nut
  dimension stands for metric. The size is the nominal

  outside diameter in mm of the threads. The pitch is the nominal
  in mm between two threads.

  Item

  Cylinder head cover screw

  Cylinder head screw

  Main bearing case screw 1

  Main bearing case screw 2 Flywheel screw

  Connecting rod screw

  Rocker arm bracket screw

  Idle gear shaft screw

  Fan drive pulley mounting nut

  Bearing case cover mounting

  screw

  Glow plug

  Nozzle holder assembly

  Nozzle holder

  Oil pressure switch

  Injection pipe retaining nut

  Overflow pipe assembly retaining

  nut

  Camshaft set screw

  Hi-idling body

  Balancer shaft set bolt (Balancer

  model only)

  Alternators pulley nut

  Idle gear 2 stopper set screw

  (Side PTO model only)

  Idle gear 2 shaft set screw

  (Side PTO model only)

  Starters terminal Bmounting nut

  M6 x 1.0

  M11 x 1.25

  M9 x 1.25

  M10 x 1.25M12 x 1.25

  M8 x 1.0

  M8 x 1.25

  M8 x 1.25

  M30 x 1.5

  M8 x 1.25

  M10 x 1.25

  M20 x 1.5

  —

  R 1/8

  M12 x 1.5

  M12 x 1.5

  M8 x 1.25

  M14 x 1.0

  M8 x 1.25

  —

  —

  —

  M8

  6.9 to 11.3

  93.2 to 98.1

  46.1 to 51.0

  68.6 to 73.598.1 to 107.9

  44.1 to 49.0

  23.5 to 27.5

  23.5 to 27.5

  137.3 to 156.9

  23.5 to 27.5

  19.6 to 24.5

  49.0 to 68.6

  34.3 to 39.2

  14.7 to 19.6

  24.5 to 34.3

  19.6 to 24.5

  23.5 to 27.5

  44.1 to 49.0

  23.5 to 27.5

  58.3 to 78.9

  49.0 to 55.9

  23.5 to 27.5

  5.9 to 11.8

  0.7 to 1.15

  9.5 to 10.0

  4.7 to 5.2

  7.0 to 7.510.0 to 11.0

  4.5 to 5.0

  2.4 to 2.8

  2.4 to 2.8

  14.0 to 16.0

  2.4 to 2.8

  2.0 to 2.5

  5.0 to 7.0

  3.5 to 4.0

  1.5 to 2.0

  2.5 to 3.5

  2.0 to 2.5

  2.4 to 2.8

  4.5 to 5.0

  2.4 to 2.8

  5.95 to 8.05

  5.0 to 5.7

  2.4 to 2.8

  0.6 to 1.2

  5.1 to 8.32

  68.7 to 72.3

  34.0 to 37.6

  50.6 to 54.272.3 to 79.6

  32.5 to 36.2

  17.4 to 20.3

  17.4 to 20.3

  101.3 to 115.7

  17.4 to 20.3

  14.5 to 18.1

  36.2 to 50.6

  25.3 to 28.9

  10.8 to 14.5

  18.1 to 25.3

  14.5 to 18.1

  17.4 to 20.3

  32.5 to 36.2

  17.4 to 20.3

  43.0 to 58.2

  36.2 to 41.2

  17.4 to 20.3

  4.3 to 8.7

  ***

  **

  *

  Size x Pitch Nm kgf m ft-lbs

  **

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  ENGINE: KUBOTA

  A.24

  Torque Figures — V2003M-T

  (2) Tightening torques for general use screws, bolts and
  nuts.

  When the tightening torques are not specified, tighten the
  screws, bolts and nuts according to the table below.

  Screw and bolt material grades are shown by numbers punched on
  the screw and bolt heads. Prior to tightening, be sure

  to check out the numbers as shown below.

  Grad Standard Screw and Bolt Special Screw and Bolt

  4 7

  Nominal

  Diameter Unit Nm kgf.m ft-lbs Nm kgf.m ft-lbs

  M6 7.9 to 9.3 0.80 to 0.95 5.8 to 6.9 9.8 to 11.3 1.00 to 1.15
  7.23 to 8.32

  M8 17.7 to 20.6 1.8 to 2.1 13.0 to 15.2 23.5 to 27.5 2.4 to 2.8
  17.4 to 20.3

  M10 39.2 to 45.1 4.0 to 4.6 28.9 to 33.3 48.1 to 55.9 4.9 to 5.7
  35.4 to 41.2

  M12 62.8 to 72.6 6.4 to 7.4 46.3 to 53.5 77.5 to 90.2 7.9 to 9.2
  57.1 to 66.5

  Punched Number Screw and Bolt Material Grade

  None or 4 Standard Screw and Bolt SS41, S20C

  7 Special Screw and bolt S43C, S48C (refined)

• 7/27/2019 Kubota V2203 — Service Manual Code 950 — 994 — 653 (1)
  (1)

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  A.25

  ENGINE: KUBOTA

  Code No: 07916-32011

  Application: Use to remove the flywheel.

  Code No: 07916-09032

  Application: Use for pulling out bearings, gears

  and other parts.

  Code No: 07909-33102

  Application: Use for correcting valves seats.

  Flywheel Puller

  Special-Use Puller Set

  Valve Cutter Set

  Special Tools

• 7/27/2019 Kubota V2203 — Service Manual Code 950 — 994 — 653 (1)
  (1)

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  ENGINE: KUBOTA

  A.26

  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

  diagnosis of need for major overhaul.

  (1) Gauge (7) Adaptor F

  (2) LJoint (8) Adaptor G(3) Adaptor A (9) Adaptor H

  (4) Adaptor B (10) Adaptor I

  (5) Adaptor C (11) Adaptor J

  (6) Adaptor E

  Code No: 07916-32032

  Application: Use to measure lubricating oil pressure.

  (1) Gauge (5) Adaptor 2

  (2) Cable (6) Adaptor 3

  (3) Threaded Joint (7) Adaptor 4

  (4) Adaptor 1

  Code No: 07909-31661

  Application: Use for checking the connecting

  rod alignment.

  Applicable: Connecting rod big end I.D. 30 range to 75mm (1.18
  to

  2.95 in.dia.) connecting rod length 65 to 330 mm (2.56

  to 12.99 in.)

  Diesel Engine Compression Tester

  Oil Pressure Test

  Connecting Rod Alignment Tool

  Special Tools

• 7/27/2019 Kubota V2203 — Service Manual Code 950 — 994 — 653 (1)
  (1)

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  A.27

  ENGINE: KUBOTA

  Code No: 07909-30241

  Application: Use for checking the oil clearance between

  crankshaft and bearing etc.

  Measuring:

  range Green — 0.025 to 0.076 mm

  (0.001 to 0.003 in.)

  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.)

  Code No: 07909-31371

  Application: Use for checking cracks on cylinder head,

  cylinder block, etc.

  Press Gauge

  Red Check (Crack Check Liquid)

  Special Tools

• 7/27/2019 Kubota V2203 — Service Manual Code 950 — 994 — 653 (1)
  (1)

  28/30

  ENGINE: KUBOTA — TROUBLE SHOOTING

  TRO

  UBLESHOOTING

  Cran

  kshaftdoesnotturn

  Noorsmal

  lfuelinjection

  soun

  ds

  Frictionalresistanceo

  fmovingparts

  istoomuc

  h

  Cran

  kshaftan

  dcamshaf

  thaveseizedup

  Pistonan

  dcy

  linder

  liner

  haveseizedup

  Bearingsareoi

  l-stuc

  k

  Lubricationsystemnotw

  orkingproper

  ly

  Starter

  faulty

  Batterycapacityis

  loworterminal

  loose

  Fuelpipe

  bro

  ken

  Airenters

  fuelpipethroug

  hconnection

  Fuel

  filterclogge

  d

  Fuelpumpfa

  ulty

  Contro

  lrac

  kstaysatnon-injectingpoint

  Plungeriswornor

  seizedup

  Deliveryva

  lvenotcompletelyoi

  l-tight

  Nee

  dleva

  lvestuc

  k

  Nozzlespringb

  roken

  Injectionpressurem

  aladjusted

  Injectionpipemountingnut

  loose

  Injectiontimingmaladjusted

  Contact

  betweeninta

  ke/exhaust

  valvean

  dseatnottig

  ht

  Inta

  ke/exhaustva

  lves

  pring

  bro

  ken

  Inta

  ke/exhaustva

  lvestuc

  k

  Gas

  ket

  faulty

  Tig

  htnesstorqueofcy

  linde

  rhea

  dnotenoug

  h

  Pistonringstuck

  Pistonringw

  orn

  Cylin

  der

  liner

  worn

  Tightnesstorqueofinjectionnozzle

  andglowplugnotenough

  Valveclearancee

  xcessive

  Fuelsupp

  lytoinjectionpump

  isinsu

  fficient

  Injectionmistimed

  Fuelinjectionsounds

  Crankshafttu

  rns

  Compressedair

  leaks

  Valveactiontimingimproper

  Injectionpump

  doesnotsendon

  fuel

  Fuel

  doesnotinjectthroug

  h

  injectionnozz

  le

  ENGINE

  DOES

  NOT

  START

  A.28

• 7/27/2019 Kubota V2203 — Service Manual Code 950 — 994 — 653 (1)
  (1)

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  Airinpump

  Pumpcapacitynotconstant

  Tappetro

  lleran

  dp

  inworn

  Deliveryva

  lvenotcomp

  lete

  lyoi

  l-tight

  Fuel

  filterclogge

  d

  Fuelpipes

  bro

  kenor

  loose

  Air

  leaking

  Aircleanerclog

  ged

  Valveclearanceincorrect

  Governorsleevenotslid

  ingproper

  ly

  Fork

  levernot

  functioningnormal

  ly

  Startspring

  defo

  rmed

  Contro

  lrac

  knotslidin

  gproper

  ly

  Revolutionisnotsmoothat

  hig

  hspee

  ds

  Slowenginerevo

  lutions

  Mainmovingparts

  haveseize

  dupalmost

  Engineover

  heated

  Injectionmistimed

  Governornot

  functioningnormal

  ly

  Filterclogge

  d

  Fuelpipe

  bro

  keno

  rloose

  Injectionpumpscapacitynotenough

  Nozz

  lenee

  dlevalv

  eworn

  Fuel

  leaks

  fromno

  zzletip

  Fuelnotsprayingp

  roperly

  Governorspring

  deformed

  Valveclearanceincorrect

  Injectionpumpornozz

  lenotfunctioningnormal

  ly

  Compressionpressureis

  differentamongcy

  linders

  Idlingregu

  latorma

  ladjuste

  d

  Acceleratorro

  dma

  ladjuste

  d

  ENG

  INE

  DOES

  NOTTURN

  NORMALLY

  ENGINE

  OUTPUT

  INS

  UFFICIENT

  Idlingmaladjusted

  Fuelsupplyinsu

  fficient

  Compressionpressurenotenough

  Governornot

  functioningnormally

  Injectionpumpwrong

  Injectionnozzle

  faulty

  Idlingnotsmoot

  h

  Revo

  lutionirregu

  lar

  ENGINE: KUBOTA — TROUBLE SHOOTING

  A.29

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  (1)

  30/30

  Pistonringstuck

  Pistonringw

  orn

  Excessivegap

  betweency

  linder

  lineran

  dpiston

  Toomucho

  il

  Nee

  dleva

  lves

  tuck

  Nozzlespring

  bro

  ken

  Toomuc

  hcarbonstickstonozz

  letip

  Injectionpressure

  too

  low

  Injection

  delaye

  d

  Compressionpressureinsu

  fficient

  Injectiontooe

  arly

  Injection

  delaye

  d

  Plungerdoesnotreturncompletelybecausespringisstuckorbroken

  Plungerworn

  Compressedair

  leaks

  Airnotenoug

  h

  Injectionpumpp

  lungerlea

  ksmuc

  hfuel

  Fuelpump

  leaksm

  uchfuel

  Hea

  dgasketpacking

  faulty

  Cran

  kcasecracked

  CO

  LOUR

  OF

  EXHAUST

  FU

  MES

  NOT

  N

  ORMAL

  EXCESSIVE

  LUBRICANT

  CONSUMPTION

  LU

  BRICANT

  INC

  REASING

  Fuelin

  lubricant

  Waterin

  lubricant

  Fuelpump

  sinjectingcapacity

  varying

  Nozzle

  doesnotinject

  fuelproperly

  Lubricantrisesthroug

  hthepiston

  gap

  Injectionmistimed

  Blackor

  dar

  kgreyex

  haust

  fumes

  Whiteor

  blueex

  haust

  fumes

  Excessivegap

  betweenp

  istonan

  dliner

  Pistonringstuck

  Pistonringw

  orn

  Excessivegap

  betweeninta

  ke/exhaustva

  lvean

  dva

  lvestem

  Valvestemseal

  broken

  Oil

  leaks

  from

  defectivepac

  kings

  Hydraulicpump

  soilseal

  bro

  ken

  Gearoilin

  lubricant

  ENGINE: KUBOTA — TROUBLE SHOOTING