Kubota V3600-E3, V3600-T-E3, V3800-DI-T-E3, V3300-E3BG, V3600-T-E3BG Operator Manual

KUBOTA SHOP MANUAL

MODELS

V3600-E3 · V3600-T-E3 V3800-DI-T-E3 · V3300-E3BG · V3600-T-E3BG

TO THE READER

This Workshop Manual has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of V3600-E3B, V3600-T-E3B, V3800DI-T-E3B, V3600-E3CB, V3600-T-E3CB, V3800DI-T-E3CB, V3300-E3BG, V3600-T-E3BG and V3800DI-T-E3BG. 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. 9Y021-01876) 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.

October 2007

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

SAFETY FIRST

SAFETY INSTRUCTIONS

This symbol, the industry’s “Safety Alert Symbol”, is used throughout this manual and on labels on

the machine itself to warn of the possibility of personal injury. Read these instructions carefully.

It is essential that you read the instructions and safety regulations before you attempt to repair or use

this unit.

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

death or serious injury.

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

death or serious injury.

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

minor or moderate injury.

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

followed.

Q NOTE : 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.

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

SAFETY INSTRUCTIONS

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.

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

SAFETY INSTRUCTIONS

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.

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

SAFETY INSTRUCTIONS

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.

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

SPECIFICATIONS

Model V3600-E3B V3600-E3CB V3600-T-E3B

V3600-T-

E3CB

V3800DI-T-

E3B

V3800DI-T-

E3CB

Number of Cylinder 4

Type Vertical, water-cooled, 4-cycle diesel engine

Bore × Stroke 98 × 120 mm (3.86 × 4.72 in.) 100 × 120 mm (3.94 × 4.72 in.)

(rpm) (rpm))

(220.9 cu.in.) 3769 cm3 (230.0 cu.in.)

51.5 kW / 2600 min

(69.0 HP / 2600 min

59.3 kW / 2600 min

(79.5 HP / 2600 min

63.0 kW / 2600 min

(84.5 HP / 2600 min

-1

(rpm)

-1

(rpm)

-1

(rpm)

-1

(rpm))

-1

(rpm)

-1

(rpm))

-1

(rpm)

-1

(rpm))

60.9 kW / 2600 min

(81.6 HP / 2600 min

70.1 kW / 2600 min

(94.0 HP / 2600 min

74.0 kW / 2600 min

(99.2 HP / 2600 min

-1

(rpm)

-1

(rpm))

-1

(rpm)

-1

(rpm))

-1

(rpm)

-1

(rpm))

Reentrant Type, Center Direct

Injection Type (E-CDIS)

Total Displacement 3620 cm

ISO Net Continuous

ISO / SAE Net Intermittent

SAE Gross Intermittent

40.2 kW / 2600 min

(53.9 HP / 2600 min

46.3 kW / 2600 min

(62.1 HP / 2600 min

49.8 kW / 2600 min

(66.8 HP / 2600 min

-1

Maximum Bare Speed 2800 min

Minimum Bare Idling Speed 775 to 825 min

Combustion Chamber Spherical Type (E-TVCS)

Fuel Injection Pump Bosch Type Mini Pump

Governor All speed mechanical governor

Direction of Rotation Counter-clockwise (Viewed from flywheel side)

Injection Nozzle BOSCH Throttle Type Bosch P Type

Injection Timing 0.14 rad (8.0 °) before T.D.C. 0.070 rad (4.0 °) before T.D.C. 0.10 rad (6.0 °) before T.D.C.

Firing Order 1-3-4-2

Injection Pressure 13.73 MPa (140.0 kgf/cm

, 1991 psi)

1st stage 18.63 MPa

(190.0 kgf/cm

2nd stage 23.54 MPa

(240.0 kgf/cm

, 2702 psi),

, 3414 psi),

Compression Ratio 22.6 21.8 19.0

Lubricating System Forced lubrication by trochoid pump

Oil Pressure Indicating Electrical Type Switch

Lubricating Filter Full Flow Paper Filter (Cartridge Type)

Cooling System Pressurized radiator, forced circulation with water pump

Starting System Electric Starting with Starter

Starting Motor 12 V, 3.0 kW

Starting Support Device By Glow Plug in Combustion Chamber

EGR NONE

Internal EGR

(2 stage Exhaust Cam)

Intake Air Heater in Intake

Manifold

External EGR

(EGR Cooler + Mechanical EGR

Valve + Reed Valve)

Battery 12 V, 136 AH equivalent

Charging Alternator 12 V, 540 W

Fuel Diesel Fuel No. 2-D S500 or S15, see page G-7.

Lubricating Oil

Class CF lubricating oil as per API classification is recommended.

For details on recommended lubricating oils, see page G-7.

Lubricating Oil Capacity 13.2 L (3.49 U.S.gals)

Weight (Dry)

264 kg

(582 lbs)

245 kg

(540 lbs)

275 kg

(606 lbs)

252 kg

(556 lbs)

288 kg

(635 lbs)

281 kg

(619 lbs)

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

W1028103

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

SPECIFICATIONS

Model V3300-E3BG V3600-T-E3BG V3800DI-T-E3BG

Number of Cylinders 4

Type Vertical, Water-cooled, 4 cycle diesel engine

Bore × Stroke 98 x 110 mm (3.86 x 4.33 in.) 98 x 120 mm (3.86 x 4.72 in.) 100 x 120 mm (3.94 x 4.72 in.)

Total Displacement 3318 cm

STANDBY

ISO 3046 SAE J-1349

NET Continuous

ISO 3046 SAE J-1349

33.6 kW / 1800 min

45.0 HP / 1800 min

30.6 kW / 1800 min

41.0 HP / 1800 min

(202.48 cu.in.) 3620 cm3 (220.9 cu.in.) 3769 cm3 (230.0 cu.in.)

-1

(rpm)

-1

(rpm)

-1

(rpm)

-1

(rpm)

43.1 kW / 1800 min

57.8 HP / 1800 min

39.2 kW / 1800 min

52.5 HP / 1800 min

-1

(rpm)

-1

(rpm)

-1

(rpm)

-1

(rpm)

47.8 kW / 1800 min

64.1 HP / 1800 min

(NET STANDBY SEA J-1995)

43.5 kW / 1800 min

58.3 HP / 1800 min

(NET Continuous SEA J-1995)

-1

(rpm) (rpm)

Governor Regulation Less than 5 % –

Combustion Chamber Spherical type (E-TVCS)

Reentrant Type, Center Direct

Injection Type (E-CDIS)

Fuel Injection Pump Bosch Type Mini Pump

Governor All speed mechanical governor

Mechanical + Electronic

governor

Direction of Rotation Counter-clockwise (viewed from flywheel side)

Injection Nozzle Bosch Throttle Type Bosch P Type

Injection Timing 0.16 rad (9.0 °) before T.D.C. 0.070 rad (4.0 °) before T.D.C. 0.096 rad (5.5 °) before T.D.C.

Firing Order 1-3-4-2

Injection Pressure 13.73 MPa (140.0 kgf/cm

, 1991 psi)

1st stage 18.63 MPa

(190.0 kgf/cm

2nd stage 23.54 MPa

(240.0 kgf/cm

, 2702 psi),

, 3414 psi),

Compression Ratio 22.6 21.8 19.0

Lubricating System Forced lubrication by trochoid pump

Oil Pressure Indication Electrical type switch

Lubricating Filter Full flow paper filter (Cartridge type)

Cooling System Pressurized radiator, forced circulation with water pump

Starting System Electric Starting with Starter

Starting Motor 12 V, 3.0 kW

Starting Support Device By glow plug in combustion chamber

EGR None

Internal EGR

(2 stage Exhaust Cam)

Intake Air Heater in Intake

Manifold

External EGR

(EGR Cooler + Mechanical

EGR Valve + Reed Valve)

Battery 12 V, 136 AH, equivalent

Charging Alternator 12 V, 540 W

Fuel Diesel Fuel No. 2-D S500 or S15, see page G-7.

Lubricating Oil

Class CF lubricating oil as per API classification is recommended.

For details on recommended lubricating oils, see page G-7.

Lubricating Oil Capacity 13.2 L (3.49 U.S.gals)

Weight (Dry) 281 kg (619 lbs) 284 kg (626 lbs) 280 kg (617 lbs)

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

W10455750

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

PERFORMANCE CURVES

(1) Brake Horse Power (2) Engine Speed (3) B.S.F.C. (4) Torque

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIMENSIONS

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIMENSIONS

GENERAL

CONTENTS

1. ENGINE IDENTIFICATION ............................................................................. G-1

[1] MODEL NAME AND ENGINE SERIAL NUMBER ................................ G-1

[2] E3B ENGINE............................................................................................. G-3

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

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

3. MAINTENANCE CHECK LIST ....................................................................... G-5

4. CHECK AND MAINTENANCE ....................................................................... G-8

[1] DAILY CHECK POINTS........................................................................... G-8

[2] CHECK POINTS OF INITIAL 50 HOURS ........................................... G-10

[3] CHECK POINT OF EVERY 50 HOURS ............................................. G-11

[4] CHECK POINTS OF EVERY 250 HOURS......................................... G-12

[5] CHECK POINTS OF EVERY 500 HOURS......................................... G-14

[6] CHECK POINT OF EVERY 1000 HOURS ......................................... G-18

[7] CHECK POINTS OF EVERY 1 OR 2 MONTHS ............................... G-19

[8] CHECK POINTS OF EVERY 1500 HOURS....................................... G-21

[9] CHECK POINTS OF EVERY 3000 HOURS....................................... G-23

[10]CHECK POINTS OF EVERY 1 YEAR ................................................ G-28

[11]CHECK POINTS OF EVERY 2 YEARS.............................................. G-29

5. SPECIAL TOOLS.......................................................................................... G-32

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

1. ENGINE IDENTIFICATION

[1] MODEL NAME AND ENGINE SERIAL NUMBER

When contacting the manufacture, always specify your engine

model name and serial number.

The engine model and its serial number need to be identified

before the engine can be serviced or parts replaced.

Q Engine Serial Number

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

It is marked after the engine model number.

It indicates month and year of manufacture as follows.

• Year of manufacture

Alphabet or

Number

1 2001 F 2015

2 2002 G 2016

3 2003 H 2017

4 2004 J 2018

5 2005 K 2019

6 2006 L 2020

7 2007 M 2021

8 2008 N 2022

9 2009 P 2023

A 2010 R 2024

B 2011 S 2025

C 2012 T 2026

D 2013 V 2027

E 2014

Year

Alphabet or

Number

G GENERAL

Yea r

(1) Engine Model Name and Serial

Number

W1010477

G-1

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

• Month of manufacture

Month Engine Lot Number

January A0001 ~ A9999 B0001 ~ BZ999

February C0001 ~ C9999 D0001 ~ DZ999

March E0001 ~ E9999 F0001 ~ FZ999

April G0001 ~ G9999 H0001 ~ HZ999

May J0001 ~ J9999 K0001 ~ KZ999

June L0001 ~ L9999 M0001 ~ MZ999

July N0001 ~ N9999 P0001 ~ PZ999

August Q0001 ~ Q9999 R0001 ~ RZ999

September S0001 ~ S9999 T0001 ~ TZ999

October U0001 ~ U9999 V0001 ~ VZ999

November W0001 ~ W9999 X0001 ~ XZ999

December Y0001 ~ Y9999 Z0001 ~ ZZ999

* Alphabetical letters “I” and “O” are not used. e.g. V3600

- 8 B A001

(a) (b)(c) (d)

(a) Engine Model Name : V3600 (b) Year : 8 indicates 2008 (c) Month : A or B indicates January (d) Lot number : (0001 ~ 9999 or A001 ~ Z999)

W1011076

G-2

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

[2] E3B ENGINE

[Example : Engine Model Name V3600-E3B-XXXX]

The emission controls previously implemented in various countries to prevent air pollution will be stepped up as Non-Road Emission Standards continue to change. The timing or applicable date of the specific Non-Road Emission regulations depends on the engine output classification.

Over the past several years, Kubota has been supplying diesel engines that comply with regulations in the respective countries affected by Non-Road Emission regulations. For Kubota Engines, E3B will be the designation that identifies engine models affected by the next emission phase (See the table below).

When servicing or repairing ###-E3B series engines, use only replacement parts for that specific E3B engine, designated by the appropriate E3B Kubota Parts List and perform all maintenance services listed in the appropriate Kubota Operator's Manual or in the appropriate E3B Kubota Workshop Manual. Use of incorrect replacement parts or replacement parts from other emission level engines (for example: E2B engines), may result in emission levels out of compliance with the original E3B design and EPA or other applicable regulations.Please refer to the emission label located on the engine head cover to identify Output classification and Emission Control Information. E3B engines are identified with "ET" at the end of the Model designation, on the US EPA label. Please note : E3B is not marked on the engine.

Category (1) Engine output classification EU regulation

K From 19 to less than 37 kW STAGE ΙΙΙA

J From 37 to less than 75 kW STAGE ΙΙΙA

I From 75 to less than 130 kW STAGE ΙΙΙA

[3] CYLINDER NUMBER

Category (2) Engine output classification EPA regulation

Less than 19kW Tier 4

(1) EU regulation engine output classification category (2) “E3B” engines are identified with “ET” at the end of the Model designation, on

the US EPA label. “E3B” designates Tier 3 and some Interim Tier 4 / Tier 4 models, depending on engine output classification.

From 19 to less than 56 kW Interim Tier 4

From 56 to less than 75 kW Tier 3

From 75 to less than 130 kW Tier 3

W1031971

The cylinder numbers of kubota diesel engine are designated as

shown in the figure.

The sequence of cylinder numbers is given as No.1, No.2, No.3

and No.4 starting from the gear case side.

W1011077

G-3

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

2. GENERAL PRECAUTIONS

• During disassembly, carefully arrange removed parts in a clean area to prevent confusion later. Screws, bolts and nuts should be replaced in their original position to prevent reassembly errors.

• When special tools are required, use KUBOTA genuine special tools. Special tools which are not frequently used should be made according to the drawings provided.

• Before disassembling or servicing live wires, make sure to always disconnect the grounding cable from the battery first.

• Remove oil and dirt from parts before measuring.

• Use only KUBOTA genuine parts for parts replacement to maintain engine performance and to ensure safety.

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

• When reassembling external or internal snap rings, position them so that the sharp edge faces against the direction from which force is applied.

• Be sure to perform run-in the serviced or reassembled engine. Do not attempt to give heavy load at once, or serious damage may result to the engine.

(1) Grease (2) Force (3) Place the Sharp Edge against the

Direction of Force

G GENERAL

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

W1011734

G-4

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

3. MAINTENANCE CHECK LIST

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

the table below.

[V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG]

Service Interval

Item

Changing engine oil ,, ,

Replacing oil filter cartridge ,,

*Checking fuel hoses and clamps ,

*Cleaning air filter element (Replace the element after 6 times cleanings)

*Cleaning fuel filter ,

Checking battery electrolyte level ,

Checking radiator hoses and clamps ,

*Checking intake air line ,

Checking fan belt tension and damage ,,

*Replacing fuel filter cartridge ,

Replacing fan belt ,,

Cleaning radiator interior ,

Checking valve clearance ,

Recharging battery ,

*Checking injection nozzle condition ,

*Checking turbocharger ,

Checking fuel injection pump ,

*Checking injection timing (spill timing) ,

*Replacing air filter element ,

Changing radiator coolant (L.L.C.) ,

Replacing radiator hoses and clamps ,

*Replacing fuel hoses and clamps ,

*Replacing intake air line ,

Replacing battery ,

Initial

50 hrs

Every 50 hrs

Every

250 hrs

Every

500 hrs

Every

1000

hrs

Every 1

or 2

months

Every

1500

hrs

Every

3000

hrs

Every

1 year

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

nonroad emission regulation. As the engine owner, you are responsible for the performance of the required maintenance on the engine according to the above instruction.

Every

years

W1029462

G-5

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

[V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG]

Service Interval

Item

Changing engine oil ,, ,

Replacing oil filter cartridge ,,

*Checking fuel hoses and clamps ,

*Cleaning air filter element (Replace the element after 6 times cleanings)

*Cleaning fuel filter ,

Checking battery electrolyte level ,

Checking radiator hoses and clamps ,

*Checking intake air line ,

Checking fan belt tension and damage ,,

*Replacing fuel filter cartridge ,

Replacing fan belt ,,

Cleaning radiator interior ,

Checking valve clearance ,

Recharging battery ,

*Checking injection nozzle condition ,

*Checking turbocharger ,

Checking fuel injection pump ,

*Checking injection timing (spill timing) ,

*Replacing air filter element ,

Changing radiator coolant (L.L.C.) ,

Replacing radiator hoses and clamps ,

*Replacing fuel hoses and clamps ,

*Replacing intake air line ,

Replacing battery ,

Initial

50 hrs

Every

50 hrs

Every

250

hrs

Every

500 hrs

Every

1000

hrs

Every 1

or 2

months

Every

1500

hrs

Every

3000

hrs

Every

1 year

Every

years

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

nonroad emission regulation. As the engine owner, you are responsible for the performance of the required maintenance on the engine according to the above instruction.

W1026550

G-6

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Q NOTE Engine Oil :

• Refer to the following table for the suitable American Petroleum Institute (API) classification of engine oil according to the engine type (with internal EGR, external EGR or non-EGR) and the Fuel Type Used : (Low Sulfur, Ultra Low Sulfur or High Sulfur Fuels).

Engine oil classification (API classification)

Fuel Type

High Sulfur Fuel [0.05 % (500 ppm) ≤ Sulfur Content <

0.50 % (5000 ppm)]

Engines with non-EGR Engines with internal EGR

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

Engines with external EGR

–

Low Sulfur Fuel [Sulfur Content <

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

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

CF or CI-4

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

0.0015 % (15 ppm)]

EGR : Exhaust Gas Re-circulation

W1024941

• CJ4 classification oil is intended for use in engines equipped with DPF (Diesel Particulate Filter) and is Not

Recommended for use in Kubota E3 specification engines.

• Oil used in the engine should have API classification and Proper SAE Engine Oil Viscosity according to the ambient temperatures where the engine is operated.

• With strict emission control regulations now in effect, the CF-4 and CG-4 engine oils have been developed for use with low sulfur fuels, for On-Highway vehicle engines. When a Non-Road engine runs on high sulfur fuel, it is advisable to use a "CF or better" classification engine oil with a high Total Base Number (a minimum TBN of 10 is recommended).

Fuel :

• Cetane Rating : The minimum recommended Fuel Cetane Rating is 45. A cetane rating greater than 50 is preferred, especially for ambient temperatures below −20 °C (−4 °F) or elevations above 1500 m (5000 ft).

• Diesel Fuel Specification Type and Sulfur Content % (ppm) used, must be compliant with all applicable emission regulations for the area in which the engine is operated.

• Use of diesel fuel with sulfur content less than 0.10 % (1000 ppm) is strongly recommended.

• If high-sulfur fuel (sulfur content 0.50 % (5000 ppm) to 1.0 % (10000 ppm)) is used as a diesel fuel, change

the engine oil and oil filter at shorter intervals. (approximately half)

• DO NOT USE Fuels that have sulfur content greater than 1.0 % (10000 ppm).

• Diesel fuels specified to EN 590 or ASTM D975 are recommended.

• No.2-D is a distillate fuel of lower volatility for engines in industrial and heavy mobile service. (SAE J313 JUN87)

• Since KUBOTA diesel engines of less than 56 kW (75 hp) utilize EPA Tier 4 and Interim Tier 4 standards, the use of low sulfur fuel or ultra low sulfur fuel is mandatory for these engines, when operated in US EPA regulated areas. Therefore, please use No.2-D S500 or S15 diesel fuel as an alternative to No.2-D, and use No.1-D S500 or S15 diesel fuel as an alternative to No.1-D for ambient temperatures below −10 °C (14 °F).

1) SAE : Society of Automotive Engineers

2) EN : European Norm

3) ASTM : American Society of Testing and Materials

4) US EPA : United States Environmental Protection Agency

5) No.1-D or No.2-D, S500 : Low Sulfur Diesel (LSD) less than 500 ppm or 0.05 wt.%

No.1-D or No.2-D, S15 : Ultra Low Sulfur Diesel (ULSD) 15 ppm or 0.0015 wt.%

G-7

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

IMPORTANTQ

NOTEQ

4. CHECK AND MAINTENANCE

[1] DAILY CHECK POINTS

Checking Engine Oil Level

1. Level the engine.

2. To check the oil level, draw out the dipstick (1), wipe it clean, reinsert it, and draw it out again. Check to see that the oil level lies between the two notches.

3. If the level is too low, add new oil to the specified level.

• When using an oil of different maker or viscosity from the previous one, drain old oil. Never mix two different types of oil.

• Be sure to inspect the engine, locating it on a horizontal place. If placed on gradients, accurately, oil quantity may not be measured.

• Be sure to keep the oil level between upper and lower limits of the dipstick. Too much oil may cause a drop in output or excessive blow-by gas. On the closed breather type engine in which mist is sucked through port, too much oil may caused oil hammer. While too little oil, may seize the engine’s rotating and sliding parts.

(1) Dipstick (a) Maximum

G GENERAL

(b) Minimum

W1035676

G-8

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

IMPORTANTQ

G GENERAL

Checking and Replenish Coolant

1. Without recovery tank : Remove the radiator cap (1) and check to see that the coolant level is just below the port. With recovery tank (2) : Check to see that the coolant level lies between FULL (A) and LOW (B).

2. If coolant level is too low, check the reason for decreasing coolant. (Case 1) If coolant is decreasing by evaporation, replenish only fresh, soft water. (Case 2) If coolant is decreasing by leak, replenish coolant of the same manufacture and type in the specified mixture ratio (fresh, soft water and L.L.C.). If the coolant brand cannot be identified, drain out all of the remaining coolant and refill with a totally new brand of coolant mix.

• Do not remove the radiator cap until coolant temperature is below its boiling point. Then loosen the cap slightly to relieve any excess pressure before removing the cap completely.

• During filling the coolant, air must be vented from the engine coolant passages. The air vents by jiggling the radiator upper and lower hoses.

• Be sure to close the radiator cap securely. If the cap is loose or improperly closed, coolant may leak out and the engine could overheat.

• Do not use an antifreeze and scale inhibitor at the same time.

• Never mix the different type or brand of L.L.C..

(1) Radiator Cap (2) Recovery Tank

A: FULL B: LOW

W1035779

G-9

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

IMPORTANTQ

CAUTION

IMPORTANTQ

[2] CHECK POINTS OF INITIAL 50 HOURS

Changing Engine Oil (All model)

• Be sure to stop engine before changing engine oil.

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

2. Place an oil pan underneath the engine.

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

4. Screw the drain plug (1).

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

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

• Never mix two different types of oil.

• Engine oil should have properties of API classification CF (See page G-7).

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

Above 25 °C (77 °F)

0 °C to 25 °C (32 °F to 77 °F)

Below 0 °C (32 °F)

G GENERAL

SAE 30 or SAE 10W-30 SAE 10W-40

SAE 20 or SAE 10W-30 SAE 10W-40

SAE 10W or SAE 10W-30 SAE 10W-40

Engine oil capacity

(1) Drain Plug (2) Dipstick

13.2 L

3.49 U.S.gals

W1016604

Replacing Oil Filter Cartridge (All model)

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

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

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

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

4. After the new cartridge has been replaced, the engine oil normally decrease a little. Thus see that the engine oil does not leak through the seal and be sure to read the oil level on the dipstick. Then, replenish the engine oil up to the specified level.

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

(1) Engine Oil Filter Cartridge

W1017137

G-10

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

IMPORTANTQ

Fan Belt Tension

1. Measure the deflection (A), depressing the belt halfway between

the fan drive pulley and alternator pulley at specified force 98 N (10 kgf, 22 lbf).

2. If the measurement is not within the factory specifications, loosen the alternator mounting screws and relocate the alternator to adjust.

Deflection (A) Factory spec.

(A) Deflection

[3] CHECK POINT OF EVERY 50 HOURS

Checking Fuel Hose and Clamp Bands

1. If the clamp (2) is loose, apply oil to the threads and securely retighten it.

2. The fuel hose (3) is made of rubber and ages regardless of the period service. Change the fuel pipe together with the clamp every two years.

3. However, if the fuel hose and clamps are found to be damaged or deteriorate earlier than two years, then change or remedy.

4. After the fuel hose and the clamps have been changed, bleed the fuel system.

G GENERAL

10 to 12 mm

0.40 to 0.47 in.

W1208957

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

(When bleeding fuel system)

1. Fill the tank with fuel and open the cock.

2. Loosen the air vent coupling bolt of fuel filter a few turns.

3. When there is no more air bubbles in the fuel coming out of this coupling bolt, tighten the coupling bolt.

4. Open the air vent cock (1) on the top of fuel injection pump.

5. If equipped electrical fuel feed pump, turn the key on AC position and pump the fuel up for 10 to 15 seconds. If equipped mechanical fuel feed pump, set the stop lever on stop position and crank the engine for 10 to 15 seconds.

6. Close securely the air vent cock (1) after air bleeding.

• Except when venting the air, be sure to keep closed the air vent coupling bolt of the fuel injection pump. Otherwise, the engine may stall.

(1) Air Vent Cock (2) Clamp

(3) Fuel Hose

W1035921

G-11

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

NOTEQ

[4] CHECK POINTS OF EVERY 250 HOURS

Fan Belt Tension

1. Measure the deflection (A), depressing the belt halfway between

the fan drive pulley and alternator pulley at specified force 98 N (10 kgf, 22 lbf).

2. If the measurement is not within the factory specifications, loosen the alternator mounting screws and relocate the alternator to adjust.

Deflection (A) Factory spec.

(A) Deflection

Fan Belt Damage and Wear

1. Check the fan belt for damage.

2. If the fan belt is damaged, replace it.

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

4. If the fan belt is nearly worn out and deeply sunk in the pulley groove, replace it.

(A) Good (B) Bad

G GENERAL

10 to 12 mm

0.40 to 0.47 in.

W1014131

W1209480

Cleaning Air Cleaner Element

1. Remove the air cleaner element.

2. Use clean dry compressed air on the inside of the element. Pressure of compressed air must be under 205 kPa (2.1 kgf/cm

, 30 psi). Maintain reasonable distance between the nozzle and the filter.

• The air cleaner uses a dry element. Never apply oil to it.

• Do not run the engine with filter element removed.

• Change the element once a year or every 6th cleaning.

W1045746

G-12

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

IMPORTANTQ

CAUTION

IMPORTANTQ

G GENERAL

Cleaning Fuel Filter (Element Type only)

1. Close the fuel cock (3).

2. Unscrew the retaining ring (6) and remove the filter cup (5), and rinse the inside with kerosene.

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

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

5. Bleed the fuel system.

• If dust and dirt enter the fuel, the fuel injection pump and injection nozzle will wear quickly. To prevent this, be sure to clean the filter cup (5) periodically.

(1) Cock Body (2) Air Vent Plug (3) Fuel Cock

(4) Filter Element (5) Filter Cup (6) Retaining Ring

W1046058

Changing Engine Oil [V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB,

V3300-E3BG, V3600-T-E3BG]

• Be sure to stop engine before changing engine oil.

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

2. Place an oil pan underneath the engine.

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

4. Screw the drain plug (1).

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

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

• Never mix two different types of oil.

• Engine oil should have properties of API classification CF (See page G-7).

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

Above 25 °C (77 °F)

0 °C to 25 °C (32 °F to 77 °F)

Below 0 °C (32 °F)

Engine oil capacity

(1) Drain Plug (2) Dipstick

SAE 30 or SAE 10W-30 SAE 10W-40

SAE 20 or SAE 10W-30 SAE 10W-40

SAE 10W or SAE 10W-30 SAE 10W-40

13.2 L

3.49 U.S.gals

W1014590

Checking Radiator Hoses and Clamp Bands

1. Check to see if the radiator hoses are properly fixed every 250 hours of operation or every six months, whichever comes first.

2. If the clamp is loose, apply oil to the threads and retighten it securely.

3. The water hose is made of rubber and tends to age. It must be replaced every two years. Also replace the clamp and tighten it securely.

(1) Upper Hose (2) Lower Hose

W1029518

G-13

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

IMPORTANTQ

CAUTION

IMPORTANTQ

G GENERAL

Checking Battery Electrolyte Level

1. Check the battery electrolyte level.

2. If the level is below than lower level line (2), and the distilled water to pour level of each cell.

(1) Upper Level Line (2) Lower Level Line

W1047154

Checking Intake Air Line

1. Check to see if the intake air hose(s) are properly fixed every 250 hours of operation.

2. If the clamp is loose, apply oil to the threads and retighten it securely.

3. The intake air hose(s) is made of rubber and tends to age. It must be change every two years. Also change the clamp and tighten it securely.

• To prevent serious damage to the engine, keep out any dust inside the intake air line.

(1) Intake Air Hose (2) Clamp

W1029631

[5] CHECK POINTS OF EVERY 500 HOURS

Changing Engine Oil [V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG]

• Be sure to stop engine before changing engine oil.

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

2. Place an oil pan underneath the engine.

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

4. Screw the drain plug (1).

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

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

• Never mix two different types of oil.

• Engine oil should have properties of API classification CF (See page G-7).

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

Above 25 °C (77 °F)

0 °C to 25 °C (32 °F to 77 °F)

Below 0 °C (32 °F)

SAE 30 or SAE 10W-30 SAE 10W-40

SAE 20 or SAE 10W-30 SAE 10W-40

SAE 10W or SAE 10W-30 SAE 10W-40

Engine oil capacity

(1) Drain Plug (2) Dipstick

13.2 L

3.49 U.S.gals

G-14

W1027890

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

IMPORTANTQ

G GENERAL

Replacing Oil Filter Cartridge (All model)

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

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

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

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

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

(1) Engine Oil Filter Cartridge

W1015117

Replacing Fuel Filter Cartridge (Cartridge Type)

Water and dust in fuel are collected in the filter cartridge. So,

change the filter cartridge every 500 hours service.

1. Remove the used filter cartridge with filter wrench.

2. Apply a thin film of fuel to the surface of new filter cartridge gasket before screwing on.

3. Then tighten enough by hand.

4. Loosen the air vent plug to let the air out.

5. Start engine and check for fuel leakage.

(1) Fuel Filter Cartridge

W1037062

G-15

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

IMPORTANTQ

G GENERAL

Replacing Fan Belt

1. Remove the alternator.

2. Remove the fan belt (1).

3. Replace new fan belt.

4. Install the alternator.

5. Check the fan belt tension.

10 to 12 mm / 98 N

Deflection (A) Factory spec.

(1) Fan Belt (A) Deflection

0.40 to 0.47 in. / 98 N (10 kgf, 22 lbf)

W1052220

Cleaning Water Jacket and Radiator Interior

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

1. Stop the engine and let cool down.

2. To drain the coolant, open the radiator drain plug (2) and remove the radiator cap (1). Then radiator cap (1) must be removed to completely drain the coolant. And open the drain cock of engine body.

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

4. Fill with clean water and cooling system cleaner.

5. Follow directions of the cleaner instruction.

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

7. Fill with coolant up to “FULL” (A) mark on the recovery tank (3).

8. Start and operate the engine for few minutes.

9. Stop the engine and let cool. Check coolant level of radiator and recovery tank (3) and add coolant if necessary.

• Do not start engine without coolant.

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

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

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

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

A : Full B : Low

W1038102

G-16

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

IMPORTANTQ

NOTEQ

G GENERAL

Anti-Freeze

• There are two types of anti-freeze available: use the permanent type (PT) for this engine.

• Before adding anti-freeze for the first time, clean the radiator interior by pouring fresh, soft water and draining it a few times.

• The procedure for mixing water and anti-freeze differs according to the make of the anti-freeze and the ambient temperature. Basically, it should be referred to SAE J1034 standard, more specifically also to SAE J814c.

• Mix the anti-freeze with fresh, soft water, and then fill into the radiator.

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

Vol %

anti-freeze

40 –24 –11 106 223

50 –37 –35 108 226

Freezing point Boiling point*

°C °F °C °F

* At 1.013 × 100000 Pa (760 mmHg) pressure (atmospheric). A

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

• The above data represents industrial standards that necessitate a minimum glycol content in the concentrated anti-freeze.

• When the coolant level drops due to evaporation, add fresh, soft water only to keep the anti-freeze mixing ratio less than 50 %. In case of leakage, add anti-freeze and fresh, soft water in the specified mixing ratio.

• Anti-freeze absorbs moisture. Keep unused anti-freeze in a tightly sealed container.

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

W1039218

G-17

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

IMPORTANTQ

NOTEQ

[6] CHECK POINT OF EVERY 1000 HOURS

Checking Valve Clearance

• Valve clearance must be checked and adjusted when engine is cold.

1. Remove the injection pipes. (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG only)

2. Remove the head cover.

3. Set the No.1 piston at the compression top dead center.

4. Slightly push the rocker arm by your finger. (Valve bridge height adjustable type only)

5. Tighten the valve bridge height adjusting screw (1) slowly until you feel the screw touch the top of valve stem. (Valve bridge height adjustable type only)

6. Tighten the lock nut (2). (Valve bridge height adjustable type only)

7. Adjust the valve clearance with feeler gauge.

8. Tighten the lock nut (4).

Valve clearance Factory spec.

G GENERAL

0.23 to 0.27 mm

0.0091 to 0.010 in.

• After adjusting, tighten the lock nut (4) securely.

Valve arrangement

Adjustment cylinder

Location of piston

1st ,,

When No.1 piston is at compression top dead center

When No.1 piston is at overlap position

Tightening torque Cylinder head cover screw

Tightening torque Injection pipe retaining nut

(1) Valve Bridge Height Adjusting Screw (2) Lock Nut (3) Adjusting Screw (4) Lock Nut

2nd ,

3rd ,

4th

1st

2nd ,

3rd ,

4th ,,

[A] V3600-E3B, V3600-T-E3B,

[B] V3800DI-T-E3B, V3800DI-T-E3CB,

IN. EX

6.9 to 11.2 N·m

0.70 to 1.15 kgf·m

5.1 to 8.31 lbf·ft

23 to 36 N·m

2.3 to 3.7 kgf·m 17 to 26 lbf·ft

V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG

V3800DI-T-E3BG

W1037215

G-18

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

[7] CHECK POINTS OF EVERY 1 OR 2 MONTHS

Recharging

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

• When charging battery, remove battery vent plugs.

• When disconnecting the cable from the battery, start with the negative terminal first. When connecting the cable to the battery, start with the positive terminal first.

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

1) Slow Charging

1. Add distilled water if the electrolyte level is low. When charging, the amount of electrolyte should be slightly lower than the specified level to prevent overflow.

2. Connect the battery to the charging unit, following the manufacture’s instructions.

3. As the electrolyte generates gas while charging, remove all port caps.

4. The electrolyte temperature must not exceed 40 °C (104 °F) during charging. If it exceed 40 °C (104 °F), decrease the charging amperage or stop charging for a while.

5. When charging several batteries in series, charge at the rate of the smallest battery in the line.

2) Quick Charging

1. Determine the proper charging current and charging time with the tester attached to the quick charger.

2. Determine the proper charging current as 1/1 of the battery capacity. If the battery capacity exceeds 50 Ah, consider 50 A as the maximum.

Q Precaution for Operating a Quick Charger

• Operate with a quick charger differs according to the type. Consult the instruction manual and use accordingly.

G GENERAL

W1052658

G-19

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

NOTEQ

G GENERAL

Battery Specific Gravity

1. Check the specific gravity of the electrolyte in each cell with a hydrometer.

2. When the electrolyte temperature differs from that at which the hydrometer was calibrated, correct the specific gravity reading following the formula mentioned in (Reference).

3. If the specific gravity is less than 1.215 (after it is corrected for temperature), charge or replace the battery.

4. If the specific gravity differs between any two cells by more than

0.05, replace the battery.

• Hold the hydrometer tube vertical without removing it from the electrolyte.

• Do not suck too much electrolyte into the tube.

• Allow the float to move freely and hold the hydrometer at eye level.

• The hydrometer reading must be taken at the highest electrolyte level.

(Reference)

• Specific gravity slightly varies with temperature. To be exact, the specific gravity decreases by 0.0007 with an increase of 1 °C (0.0004 with an increase of 1 °F) in temperature, and increases by 0.0007 with a decreases of 1 °C (0.0004 with a decrease of 1 °F). Therefore, using 20 °C (68 °F) as a reference, the specific gravity reading must be corrected by the following formula :

- Specific gravity at 20 °C = Measured value + 0.0007 ×

(electrolyte temperature : 20 °C)

- Specific gravity at 68 °F = Measured value + 0.0004 ×

(electrolyte temperature : 68 °F)

Specific Gravity State of Charge

1.260 Sp. Gr. 100 % Charged

1.230 Sp. Gr. 75 % Charged

1.200 Sp. Gr. 50 % Charged

1.170 Sp. Gr. 25 % Charged

1.140 Sp. Gr. Very Little Useful Capacity

1.110 Sp. Gr. Discharged

At an electrolyte temperature of 20 °C (68 °F)

(a) Good (b) Bad

W1012763

G-20

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

G GENERAL

[8] CHECK POINTS OF EVERY 1500 HOURS

• Check the injection pressure and condition after confirming that there is nobody standing in the direction the fume goes.

• If the fume from the nozzle directly contacts the human body, cells may be destroyed and blood poisoning may be caused.

Nozzle Spraying Condition

1. Set the injection nozzle to a nozzle tester, and check the nozzle spraying condition.

2. If the spraying condition is defective, replace the nozzle piece. (V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG) replace the injection nozzle assembly or repair at Denso service shop. (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG)

(a) Good (b) Bad

[A] V3600-E3B, V3600-T-E3B,

V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG

[B] V3800DI-T-E3B, V3800-T-E3CB,

V3800DI-T-E3BG

W10411400

Fuel Injection Pressure [V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB,

V3300-E3BG, V3600-T-E3BG]

1. Set the injection nozzle to a nozzle tester.

2. Slowly move the tester handle to measure the pressure at which fuel begins jetting out from the nozzle.

3. If the measurement is not within the factory specifications, replace the adjusting washer (1) in the nozzle holder to adjust it.

(Reference)

• Pressure variation with 0.025 mm (0.00098 in.) difference of adjusting washer thickness. Approx. 590 kPa (6.0 kgf/cm

Fuel injection pressure Factory spec.

(1) Adjusting Washer

, 85 psi)

13.73 to 14.70 MPa

140.0 to 150.0 kgf/cm 1992 to 2133 psi

W10182100

G-21

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

NOTEQ

G GENERAL

[V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG]

1. Set the injection nozzle to the nozzle tester.

2. Slowly move the tester handle to measure the pressure at which fuel begins jetting out from the nozzle.

3. If the measurement is not within the factory specifications, replace the injection nozzle assembly or repair at Denso service shop.

• Injection nozzle gasket must be replaced when the injection nozzle is removed for checking.

18.64 to 19.61 MPa

190.0 to 200.0 kgf/cm 2703 to 2844 psi

W10412730

Injection pressure

Factory spec.

1st stage

Valve Seat Tightness [V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB,

V3300-E3BG, V3600-T-E3BG]

1. Set the injection nozzle to a nozzle tester.

2. Raise the fuel pressure, and keep at 12.75 MPa (130.0 kgf/cm 1849 psi) for 10 seconds.

3. If any fuel leak is found, replace the nozzle piece.

No fuel leak at

Valve seat tightness Factory spec.

12.75 MPa

130.0 kgf/cm 1849 psi

W10287890

[V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG]

1. Set the injection nozzle to a nozzle tester.

2. Raise the fuel pressure, and keep at 16.67 MPa (170.0 kgf/cm 2418 psi) for 10 seconds.

3. If any fuel leak is found, replace the injection nozzle assembly or repair at Denso service shop.

No fuel leak at

Valve seat tightness Factory spec.

16.67 MPa

170.0 kgf/cm 2418 psi

W10291060

Nozzle Holder [V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB,

V3300-E3BG, V3600-T-E3BG]

1. Secure the nozzle retaining nut (7) with a vise.

2. Remove the nozzle holder (1), and take out parts inside.

(When reassembling)

• Assemble the nozzle in clean fuel oil.

• Install the push rod (4), noting its direction.

• After assembling the nozzle, be sure to adjust the fuel injection pressure.

35 to 39 N·m

3.5 to 4.0 kgf·m 26 to 28 lbf·ft

20 to 24 N·m

2.0 to 2.5 kgf·m 15 to 18 lbf·ft

49 to 68 N·m

5.0 to 7.0 kgf·m 37 to 50 lbf·ft

W1018491

Tightening torque

(1) Nozzle Holder (2) Adjusting Washer (3) Nozzle Spring (4) Push Rod

Nozzle holder

Overflow pipe retaining nut

Nozzle holder assembly

(5) Distance Piece (6) Nozzle Piece (7) Nozzle Retaining Nut

G-22

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

[9] CHECK POINTS OF EVERY 3000 HOURS

Checking Turbocharger [V3600-T-E3B, V3600-T-E3CB,

V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG] (Turbine Side)

1. Check the exhaust port (3) and inlet port (5) side of turbine housing (1) to see if there is no exhaust gas leak.

2. If any gas leak is found, retighten the bolts and nuts or replace the gasket (2) / (4) / (6) with new one.

(Compressor Side)

1. Check the inlet hose (9) of the compressor cover (10) to see if there is no air leak.

2. If any air leak is found, change the clamp (8) and / or inlet hoses.

3. Check the intake hose (7) and the clamp to see if there is not loose or crack.

4. If any loose or crack is found, tighten the cramp or change the hose to prevent dust from entry.

(Radial Clearance)

1. If the wheel contact to the housing, replace the turbocharger assembly with new one.

(1) Turbine Housing (2) Gasket (3) Exhaust Port (4) Gasket (5) Inlet Port

G GENERAL

(6) Gasket (7) Intake Hose (8) Clamp (9) Inlet Hose

(10) Compressor Cover

W1022082

G-23

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Injection Timing

1. Remove the timer gear lubricating pipe (1). (V3600-E3B, V3600-E3CB, V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-TE3BG only)

2. Remove the gear case cover (2). (V3600-E3B, V3600-E3CB, V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG only)

3. Set the timer 0 ° restoring jig (4) to the timer gear(3). (V3600-E3B, V3600-E3CB, V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG only)

4. Make sure of matching the injection timing align mark (5) of the injection pump unit and the plate (gear case), as shown in the illustration.

5. Remove the injection pipes.

6. Remove the solenoid.

(1) Timer Gear Lubricating Pipe (2) Gear Case Cover (3) Timer Gear (4) Timer 0 ° Restoring Jig (5) Injection Timing Align Mark

[A] V3600-E3B, V3800DI-T-E3B,

V3600-E3CB, V3800DI-T-E3CB, V3800DI-T-E3BG

(a) Injection Timing Advanced

(V3600-E3B, V3600-T-E3B, V3800DI-T-E3B, V3300-E3BG, V3600-T-E3BG, V3800DI-T-E3BG) / Injection Timing Retarded (V3600-E3CB, V3600-T-E3CB, V3800DI-T-E3CB)

(b) Injection Timing Retarded

(V3600-E3B, V3600-T-E3B, V3800DI-T-E3B, V3300-E3BG, V3600-T-E3BG, V3800DI-T-E3BG) / Injection timing Advanced (V3600-E3CB, V3600-T-E3CB, V3800DI-T-E3CB)

W1036105

G-24

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

IMPORTANTQ

G GENERAL

Injection Timing (Continued)

7. Turn the flywheel counterclockwise (viewed from flywheel side) until the fuel fills up to the hole of the delivery valve holder (6) for No.1 cylinder.

8. After the fuel fills up to the hole of the delivery valve holder for No.1 cylinder, turn back (clockwise) the flywheel around 1.6 rad (90 °).

9. Turn the flywheel counterclockwise to set at around 0.35 rad (20 °) before T.D.C..

10.Slowly turn the flywheel counterclockwise and stop turning when the fuel begins to come up, to get the present injection timing.

11.Check to see the degree on flywheel. The flywheel has mark “1TC”, “10” and “20” for the crank angle before the top dead center of No.1 piston.

12.If the injection timing is not within the specification, rotate the injection pump unit to adjust the injection timing.

• When installing the injection pump unit to the engine body, follow the correct procedure. See the “Injection Pump Unit”.

0.127 to 0.152 rad (7.25 ° to 8.75 °) before T.D.C.

0.0568 to 0.0829 rad (3.25 ° to 4.75 °) before T. D. C .

0.0917 to 0.117 rad (5.25 ° to 6.75 °) before T. D. C .

0.144 to 0.170 rad (8.25 ° to 9.75 °) before T. D. C .

0.0829 to 0.109 rad (4.75 ° to 6.25 °) before T. D. C .

Injection timing

Factory spec.

V3600-E3B, V3600-E3CB

V3600-T-E3B, V3600-T-E3CB, V3600-T-E3BG

V3800DI-T-E3B, V3800DI-T-E3CB

V3300-E3BG

V3800DI-T-E3BG

Tightening torque

(6) Delivery Valve Holder

Injection pipe retaining nut

Injection pump unit mounting nut

23 to 36 N·m

2.3 to 3.7 kgf·m 17 to 26 lbf·ft

18 to 20 N·m

1.8 to 2.1 kgf·m 13 to 15 lbf·ft

W1049498

G-25

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Checking Injection Pump (Fuel Tightness of Pump Element)

1. Remove the solenoid.

2. Remove the injection pipes.

3. Install the injection pump pressure tester to the injection pump.

4. Install the injection nozzle (2) jetted with the proper injection pressure to the injection pump pressure tester (1). (Refer to the figure.)

5. Set the speed control lever to the maximum speed position.

6. Run the starter to increase the pressure.

7. If the pressure can not reach the allowable limit, replace the pump with new one or repair with a Kubota-authorized pump service shop.

(Fuel Tightness of Delivery Valve)

1. Remove the solenoid.

2. Remove the injection pipes.

3. Set a pressure tester to the fuel injection pump.

4. Install the injection nozzle (2) jetted with the proper injection pressure to the injection pump pressure tester (1).

5. Run the starter to increase the pressure.

6. Stop the starter when the fuel jets from the injection nozzle. After that, turn the flywheel by the hand and raise the pressure to (IDI : approx. 13.73 MPa (140.0 kgf/cm

18.63MPa (190.0 kgf/cm

, 2702 psi)).

, 1991 psi)), (DI : approx.

7. Now turn the flywheel back about half a turn (to keep the plunger free). Maintain the flywheel at this position and clock the time taken for the pressure to drop from (IDI : 13.73 to 12.75 MPa (140.0 to 130.0 kgf/cm

17.65 MPa (190.0 to 180.0 kgf/cm

8. Measure the time needed to decrease the pressure from (IDI :

13.73 to 12.75 MPa (140.0 to 130.0 kgf/cm (DI : 18.63 to 17.65 MPa (190.0 to 180.0 kgf/cm

, from 1991 to 1849 psi)), (DI : 18.63 to

, 2702 to 2560 psi)).

, 1991 to 1849 psi)),

, 2702 to 2560

psi)).

9. If the measurement is less than allowable limit, replace the pump with new one or repair with a Kubota-authorized pump service shop.

(1) Injection Pump Pressure Tester (2) Injection Nozzle (3) Protection Cover for Jetted Fuel

[A] V3600-E3B, V3600-T-E3B,

V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG

[B] V3800DI-T-E3B, V3800DI-T-E3CB,

V3800DI-T-E3BG

W1022357

G-26

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

NOTEQ

Checking Injection Pump (Continued)

V3600-E3B, V3600-T-E3B, V3600-E3CB,

Fuel tightness of pump element

Fuel tightness of delivery valve

Allowable limit

Factory spec.

Allowable limit

V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG

V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG

V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG

V3800DI-T-E3B, V3800DI-T-E3CB V3800DI-T-E3BG

V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG

V3800DI-T-E3B V3800DI-T-E3CB V3800DI-T-E3BG

G GENERAL

13.73 MPa

140.0 kgf/cm 1991 psi

18.63 MPa

190.0 kgf/cm 2702 psi

10 seconds

13.73 → 12.75 MPa

140.0 → 130.0 kgf/cm 1991 → 1849 psi

10 seconds

18.63 → 17.65 MPa

190.0 → 180.0 kgf/cm 2702 → 2560 psi

5 seconds

13.73 → 12.75 MPa

140.0 → 130.0 kgf/cm 1991 → 1849 psi

5 seconds

18.63 → 17.65 MPa

190.0 → 180.0 kgf/cm 2702 → 2560 psi

• Never try to disassemble the injection pump assembly. For repairs, you are strongly requested to contact a Kubotaauthorized pump service shop.

W1068099

G-27

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

IMPORTANTQ

NOTEQ

[10] CHECK POINTS OF EVERY 1 YEAR

Changing Engine Oil (All model)

• Be sure to stop engine before changing engine oil.

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

2. Place an oil pan underneath the engine.

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

4. Screw the drain plug (1).

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

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

• Never mix two different types of oil.

• Engine oil should have properties of API classification CF (See page G-7).

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

Above 25 °C (77 °F)

0 °C to 25 °C (32 °F to 77 °F)

Below 0 °C (32 °F)

G GENERAL

SAE 30 or SAE 10W-30 SAE 10W-40

SAE 20 or SAE 10W-30 SAE 10W-40

SAE 10W or SAE 10W-30 SAE 10W-40

Engine oil capacity

(1) Drain Plug (2) Dipstick

13.2 L

3.49 U.S.gals

W1019006

Replacing Air Cleaner Element

1. Remove used air cleaner element.

2. Replace new air cleaner element.

• The air cleaner uses a dry element. Never apply oil to it.

• Do not run the engine with filter element removed.

W1020554

G-28

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

IMPORTANTQ

[11] CHECK POINTS OF EVERY 2 YEARS

Replacing Fan Belt

1. Remove the alternator.

2. Remove the fan belt (1).

3. Replace new fan belt.

4. Install the alternator.

5. Check the fan belt tension.

Deflection (A) Factory spec.

(1) Fan Belt (A) Deflection

Changing Radiator Coolant (L.L.C.)

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

1. Stop the engine and let cool down.

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

4. Fill with clean water and cooling system cleaner.

5. Follow directions of the cleaner instruction.

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

7. Fill with coolant up to “FULL” (A) mark on the recovery tank (3).

8. Start and operate the engine for few minutes.

9. Stop the engine and let cool. Check coolant level of radiator and recovery tank (3) and add coolant if necessary.

G GENERAL

10 to 12 mm / 98 N

0.40 to 0.47 in. / 98 N (10 kgf, 22 lbf)

W1019333

• Do not start engine without coolant.

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

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

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

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

A : Full B : Low

W1024599

G-29

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

IMPORTANTQ

NOTEQ

CAUTION

G GENERAL

Changing Radiator Coolant (L.L.C.) (Continued) (Anti-freeze)

• There are two types of anti-freeze available: use the permanent type (PT) for this engine.

• Before adding anti-freeze for the first time, clean the radiator interior by pouring fresh, soft water and draining it a few times.

• Mix the anti-freeze with fresh, soft water, and then fill into the radiator.

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

Vol %

anti-freeze

40 –24 –11 106 223

50 –37 –35 108 226

Freezing point Boiling point*

°C °F °C °F

* At 1.013 × 100000 Pa (760 mmHg) pressure (atmospheric). A

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

• The above data represents industrial standards that necessitate a minimum glycol content in the concentrated anti-freeze.

• Anti-freeze absorbs moisture. Keep unused anti-freeze in a tightly sealed container.

W1024852

Replacing Radiator Hoses and Clamp Bands

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

1. Drain the coolant.

2. Loosen the clamp bands.

3. Remove the upper hose (1) and lower hose (2).

4. Replace new upper / lower hose (1), (2) and clamp bands.

5. Tighten the clamp bands.

6. Fill with clean water and anti-freeze until the coolant level is just below the port. Install the radiator cap securely.

(1) Upper Hose (2) Lower Hose

W1024178

G-30

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

CAUTION

IMPORTANTQ

NOTEQ

CAUTION

G GENERAL

Replacing Fuel Hose and Clamp Bands

1. Loosen the clamp (2) and remove the fuel hose (3).

2. Replace new fuel hose (3) and new clamp (2).

3. Tighten the clamp (2).

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

(When bleeding fuel system)

1. Fill the tank with fuel and open the cock.

2. Loosen the air vent coupling bolt of fuel filter a few turns.

3. When there is no more air bubbles in the fuel coming out of this coupling bolt, tighten the coupling bolt.

4. Open the air vent cock (1) on the top of fuel injection pump.

6. Close securely the air vent cock (1) after air bleeding.

• Except when venting the air, be sure to keep closed the air vent coupling bolt of the fuel injection pump. Otherwise, the engine may stall.

(1) Air Vent Cock (2) Clamp

(3) Fuel Hose

W1020090

Replacing Intake Air Line

1. Loosen the clamp (2).

2. Remove the intake air hose (1) and clamp (2).

3. Replace new intake air hose (1) and new clamp (2).

4. Tighten the clamp (2).

• To prevent serious damage to the engine, keep out any dust inside the intake air line.

(1) Intake Air Hose (2) Clamp

W1023867

Replacing Battery

• When charging battery, remove battery vent plugs.

• When disconnecting the cable from the battery, start with the negative terminal first. When connecting the cable to the battery, start with the positive terminal first.

• Never check battery charge by placing a metal object across the posts.

1. Disconnect the negative terminal and positive terminal.

2. Remove the battery holder.

3. Remove the used battery.

4. Replace the new battery.

5. Tighten the battery holder.

6. Connect the positive terminal.

7. Connect the negative terminal.

W1023996

G-31

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

5. SPECIAL TOOLS

G GENERAL

Diesel Engine Compression Tester (for Injection Nozzle Hole)

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

(7) Adaptor F (8) Adaptor G

(9) Adaptor H (10) Adaptor I (11) Adaptor J

W1024200

Diesel Engine Compression Tester (for Glow Plug Hole)

Code No: 07909-39081 (Assembly)

07909-31291 (K) 07909-31301 (L) 07909-31311 (M)

Application: Use to measure diesel engine compression and

diagnosis of need for major overhaul.

(1) Gauge (2) Hose Assembly (3) L Joint

(4) Adaptor K (5) Adaptor L (6) Adaptor M

W1050785

Oil Pressure Tester

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

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

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

W1024318

G-32

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

NOTEQ

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

Injection Pump Pressure Tester

Application: Use to check fuel tightness of injection pumps.

Pressure gauge full scale : More than 29.4 MPa

(300 kgf/cm

B PF 1/2

C Copper gasket

D Flange (Material : Steel)

E Hex. nut 27 mm (1.1 in.) across the plat

F Adhesive application

G Fillet welding on the enter circumference

H Retaining nut

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

J 8 mm dia. (0.3 in. dia.)

K 1.0 mm (0.039 in.)

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

M 6.10 to 6.20 mm dia. (0.241 to 0.244 in. dia.)

N 8 mm (0.3 in.)

O 4 mm (0.2 in.)

P 11.97 to 11.99 mm dia. (0.4713 to 0.4720 in. dia.)

Q PF 1/2

R 23 mm (0.91 in.)

S 17 mm (0.67 in.)

T 4 mm (0.2 in.)

U 12.00 to 12.02 mm dia. (0.4725 to 0.4732 in. dia.)

V 100 mm (3.94 in.)

W M12 × P1.5

X 5 mm (0.2 in.)

, 4270 psi)

G GENERAL

W10252400

G-33

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Small End Bushing Replacing Tool

Application: Use to press out and to press fit the small end bushing.

[Press out]

A 157 mm (6.18 in.)

B 14.5 mm (0.571 in.)

C 120 mm (4.72 in.)

D 30.0 mm dia. (1.18 in. dia.)

E 32.95 mm dia. (1.297 in. dia.)

F 20 mm dia. (0.79 in. dia.)

a 6.3 μm (250 μin.)

b 6.3 μm (250 μin.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

[Press fit]

A 157 mm (6.18 in.)

B 14.5 mm (0.571 in.)

C 120 mm (4.72 in.)

D 30.0 mm dia. (1.18 in. dia.)

E 42.000 mm dia. (1.6535 in. dia.)

F 20 mm dia. (0.79 in. dia.)

a 6.3 μm (250 μin.)

b 6.3 μm (250 μin.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

W1040702

Idle Gear Bushing Replacing Tool

Application: Use to press out and to press fit the bushing.

A 196 mm (7.72 in.)

B 37.5 mm (1.48 in.)

C 150 mm (5.91 in.)

D 44.95 mm dia. (1.770 in. dia.)

E 48.075 to 48.100 mm dia. (1.8928 to 1.8937 in. dia.)

F 20 mm dia. (0.79 in. dia.)

a 6.3 μm (250 μin.)

b 6.3 μm (250 μin.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

W1040289

G-34

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Gear Case Oil Seal Replacing Tool

Application: Use to press fit the oil seal.

A 148.8 mm (5.858 in.)

B 50 mm (2.0 in.)

C 18.8 mm (0.740 in.)

D 13.7 to 13.9 mm (0.540 to 0.547 in.)

E 11 mm (0.43 in.)

F 18 mm dia. (0.71 in. dia.)

G 38 mm dia. (1.5 in. dia.)

H 45 mm dia. (1.8 in. dia.)

I 57.90 to 58.10 mm dia. (2.280 to 2.287 in. dia.)

J 79.5 mm dia. (3.13 in. dia.)

K 87 mm dia. (3.4 in. dia.)

L 12 mm (0.47 in.)

M 40 mm (1.6 in.)

N 120 mm (4.72 in.)

W1041529

G-35

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Valve Guide Replacing Tool

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

Intake valve guide (V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG) and Intake / Exhaust valve guide (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG)

A 225 mm (8.86 in.)

B 70 mm (2.8 in.)

C 45 mm (1.8 in.)

D 20 mm dia. (0.79 in dia.)

E 11.7 to 11.9 mm dia. (0.461 to 0.468 in. dia.)

F 6.50 to 6.60 mm dia. (0.256 to 0.259 in. dia.)

G 25 mm dia. (0.98 in. dia.)

H 6.70 to 7.00 mm dia. (0.264 to 0.275 in. dia.)

I 5 mm (0.2 in.)

J 20 mm dia. (0.79 in.dia.)

K 12.5 to 12.8 mm dia. (0.493 to 0.503 in. dia.)

L 8.90 to 9.10 mm (0.351 to 0.358 in.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.3 mm (0.01 in.)

Exhaust valve guide (V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG)

A 225 mm (8.86 in.)

B 80 mm (3.1 in.)

C 40 mm (1.6 in.)

D 20 mm dia. (0.79 in dia.)

E 12.96 to 12.98 mm dia. (0.5103 to 0.5110 in. dia.)

F 7.50 to 7.70 mm dia. (0.296 to 0.303 in. dia.)

G 14.5 to 15.5 mm dia. (0.571 to 0.610 in.dia.)

H 8.00 to 8.10 mm dia. (0.315 to 0.318 in. dia.)

I 5 mm (0.2 in.)

J 17.5 to 18.5 mm dia. (0.689 to 0.728 in. dia.)

K 13.1 to 13.2 mm dia. (0.516 to 0.519 in. dia.)

L 9.90 to 10.1 mm (0.390 to 0.397 in.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.3 mm (0.01 in.)

W1038887

G-36

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Auxiliary Socket for Fixing Crankshaft Sleeve

Application: Use to fix the crankshaft sleeve of the diesel engine.

A Rmax = 12.5 S

B 94.5 to 95.0 mm dia. (3.72 to 3.74 in. dia.)

C 40 mm dia. (1.6 in. dia.)

D 30 mm dia. (1.2 in. dia.)

E 12 mm (0.47 in.)

F 7.90 to 8.10 mm (0.311 to 0.318 in.)

G 20 mm (0.79 in.)

H 130 mm dia. (5.12 in. dia.)

I 99.40 to 99.60 mm dia. (3.914 to 3.921 in. dia.)

J 95.05 to 95.20 mm dia. (3.743 to 3.748 in. dia.)

K 3 mm dia. (0.1 in. dia.)

L 15 mm (0.59 in.)

M 10 mm (0.39 in.)

N 90 mm (3.5 in.)

O 115 mm (4.53 in.)

P 16.9 to 17.1 mm (0.666 to 0.673 in.)

C1 Chamfer 1.0 mm (0.039 in.)

C3 Chamfer 3.0 mm (0.12 in.)

C5 Chamfer 5.0 mm (0.20 in.)

C0.2 Chamfer 0.2 mm (0.008 in.)

C0.3 Chamfer 0.3 mm (0.01 in.)

W1041815

Balancer Bushing Replacing Tool 1 Assembly

Application: Use to press fit the bushing.

No. Name of Part Q’ty. Remarks

(1) Shaft 1

(2) Piece 1 1

(3) Piece 2 1

(4) Bolt 2 M6 × P1.0

W1042867

G-37

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Balancer Bushing Replacing Tool 1 Components Parts

1) Shaft

A 498 mm (19.6 in.)

B 318.80 to 319.20 mm (12.552 to 12.566 in.)

C 102.8 to 103.2 mm (4.048 to 4.062 in.)

D 60 mm (2.4 in.)

E 8 mm (0.3 in.)

F 5 mm (0.2 in.)

G 30 mm dia. (1.2 in. dia.)

H 65 mm dia. (2.6 in. dia.)

I 6 mm (0.2 in.)

J Chamfer 1 mm (0.04 in.)

K 53 mm dia. (2.1 in. dia.)

L 54.7 to 54.9 mm dia. (2.154 to 2.161 in. dia.)

M 0.26 rad (15 °)

N Chamfer 0.5 mm (0.02 in.)

O 41 mm dia. (1.6 in. dia.)

P 32 mm dia. (1.3 in. dia.)

Q 33.96 to 34.00 mm dia. (1.337 to 1.338 in. dia.)

R 18 mm dia. (0.71 in. dia.)

S 19.967 to 20.000 mm dia. (0.78611 to 0.78740 in. dia.)

U 3 mm (0.1 in.)

V 149.1 to 149.4 mm (5.870 to 5.882 in.)

W 365.10 to 365.40 mm (14.374 to 14.385 in.)

X 123 mm (4.84 in.)

Y 375 mm (14.8 in. )

Z M6 × P1.0 depth 7 mm (0.3 in.)

a Chamfer 2 mm (0.08 in.)

W1043162

2) Piece 1

A Chamfer 0.1 mm (0.004 in.)

B 1 mm (0.04 in.)

C Chamfer 1 mm (0.04 in.)

D 53.80 to 53.90 mm dia. (2.119 to 2.122 in. dia.)

E 20.020 to 20.041 mm dia. (0.78819 to 0.78901 in. dia.)

F 48 mm dia. (1.9 in. dia.)

G 49.934 to 49.940 mm dia. (1.9659 to 1.9661 in. dia.)

H 8 mm (0.3 in.)

I 2 mm (0.08 in.)

J 35 mm dia. (1.4 in. dia.)

K 5 mm (0.20 in.)

L 0.26 rad (15 °)

W1044434

G-38

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

3) Piece 2

A Chamfer 0.1 mm (0.004 in.)

B 1 mm (0.04 in.)

C Chamfer 1 mm (0.04 in.)

D 54.30 to 54.40 mm dia. (2.138 to 2.141 in. dia.)

E 34.025 to 34.050 mm dia. (1.3396 to 1.3405 in. dia.)

F 48.5 mm dia. (1.91 in. dia.)

G 50.421 to 50.440 mm dia. (1.9851 to 1.9858 in. dia.)

H 8 mm (0.3 in.)

I 2 mm (0.08 in.)

J 35 mm dia. (1.4 in. dia.)

K 5 mm (0.2 in.)

L 0.26 rad (15 °)

W1044620

Balancer Bushing Replacing Tool 2

Application: Use to press fit the bushing.

A 35 mm (1.4 in.)

B 33 mm (1.3 in.)

C Chamfer 0.5 mm (0.02 in.)

D 1 mm (0.04 in.)

E Chamfer 1 mm (0.04 in.)

F 40 mm dia. (1.6 in. dia.)

G 50.921 to 50.940 mm dia. (2.0048 to 2.0055 in. dia.)

H 54.80 to 54.90 mm dia. (2.158 to 2.161 in. dia.)

I 30 mm dia. (1.2 in. dia.)

J 49 mm dia. (1.9 in. dia.)

K 6 mm (0.2 in.)

L 125 mm (4.92 in.)

M 160 mm (6.30 in.)

N 3 mm (0.1 in.)

O 5 mm (0.2 in.)

P 0.26 rad (15 °)

W1044794

G-39

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

NOTEQ

G GENERAL

Balancer Replacing Tools 3, 4, 5

Application: Use to press fit the bushing.

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

No. Name of Part Q’ty.

(1) Bracket 1

(2) Flange Nut 1

(3) Washer 1

(4) Shaft 1

(5) Piece 1 1

(6) Clevis 1

(7) Washer 1

(8) Cotter Pin 1

(9) Joint 1 1

(10) Piece 2 1

(11) Joint 2 1

(12) Piece 3 1

[a] :Tool 3 [b] :Tool 4

[c] :Tool 5 A : Section

Balancer Replacing Tool Components Parts

1) Bracket

A 12 mm (0.47 in.)

B 50 mm (2.0 in.)

C Chamfer 1 mm (0.04 in.)

D 80 mm (3.1 in.)

E 104 mm (4.09 in.)

F 22 mm (0.87 in.)

G 13 mm dia. (0.51 in. dia.)

W1045310

W1167794

G-40

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

2) Shaft

A 44 mm dia. (1.7 in. dia.)

B 12 mm (0.47 in.)

C Chamfer 1 mm (0.04 in.)

D 3 mm (0.1 in.)

E 3 mm (0.1 in.)

F 30 mm (1.2 in.)

G 38 mm (1.5 in.)

H 35 mm (1.4 in.)

I M12 × P1.25

J 53 mm (2.1 in.)

K 4 mm (0.2 in.)

L 75 mm (3.0 in.)

M 57 mm (2.2 in.)

N 70 mm (2.8 in.)

O 19.5 mm (0.768 in.)

P 12 mm (0.47 in.)

Q 0.8 mm (0.03 in.)

R 6 mm (0.2 in.)

W1046146

3) Piece 1

A 26 mm (1.0 in.)

B 18 mm (0.71 in.)

C 16.5 to 17.0 mm (0.650 to 0.669 in.)

D 1.5 mm (0.059 in.)

E 54.00 to 54.20 mm dia. (2.126 to 2.133 in dia.)

F 50.55 to 50.75 mm dia. (1.991 to 1.998 in dia.)

G 16 mm (0.63 in.)

H Chamfer 1 mm (0.04 in.)

I 8.5 mm dia. (0.33 in. dia.)

J 0.4 mm (0.02 in.)

K 3 mm (0.1 in.)

L 19 mm (0.75 in.)

M Chamfer 0.5 mm (0.02 in.)

N 36 mm (1.4 in.)

O 45 mm dia. (1.8 in. dia.)

P 0.79 rad (45 °)

Q 11.5 mm (0.453 in.)

W1047263

G-41

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

4) Joint 1

A M12 × P1.25

B Chamfer 1 mm (0.04 in.)

C 30 mm dia. (1.2 in. dia.)

D 13 mm dia. (0.51 in. dia.)

E Chamfer 3 mm (0.1 in.)

F 3 mm (0.1 in.)

G 45 mm (1.8 in.)

H 75 mm (3.0 in.)

I 57 mm (2.2 in.)

J 85 mm (3.3 in.)

K 70 mm (2.8 in.)

L 178 mm (7.01 in.)

W1047709

5) Piece 2

A 26 mm (1.0 in.)

B 18 mm (0.71 in.)

C 16.5 to 17.0 mm (0.650 to 0.669 in.)

D 1.5 mm (0.059 in.)

E 53.50 to 53.70 mm dia. (2.107 to 2.114 in dia.)

F 50.05 to 50.25 mm dia. (1.971 to 1.978 in dia.)

G 16 mm (0.63 in.)

H Chamfer 1 mm (0.04 in.)

I 8.5 mm dia. (0.33 in. dia.)

J 0.4 mm (0.02 in.)

K 3 mm (0.1 in.)

L 19 mm (0.75 in.)

M Chamfer 0.5 mm (0.02 in.)

N 36 mm (1.4 in.)

O 45 mm dia. (1.8 in. dia.)

P 0.79 rad (45 °)

Q 11.5 mm (0.453 in.)

W1048068

6) Joint 2

A M12 × P1.25

B Chamfer 1 mm (0.04 in.)

C 30 mm dia. (1.2 in. dia.)

D 13 mm dia. (0.51 in. dia.)

E Chamfer 3 mm (0.1 in.)

F 3 mm (0.1 in.)

G 45 mm (1.8 in.)

H 75 mm (3.0 in.)

I 57 mm (2.2 in.)

J 85 mm (3.3 in.)

K 70 mm (2.8 in.)

L 394 mm (15.5 in.)

W1048305

G-42

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

7) Piece 3

A 26 mm (1.0 in.)

B 18 mm (0.71 in.)

C 16.5 to 17.0 mm (0.650 to 0.669 in.)

D 1.5 mm (0.059 in.)

E 53.00 to 53.20 mm dia. (2.087 to 2.094 in dia.)

F 49.55 to 49.75 mm dia. (1.951 to 1.958 in dia.)

G 16 mm (0.63 in.)

H Chamfer 1 mm (0.04 in.)

I 8.5 mm dia. (0.33 in. dia.)

J 0.4 mm (0.02 in.)

K 3 mm (0.1 in.)

L 19 mm (0.75 in.)

M Chamfer 0.5 mm (0.02 in.)

N 36 mm (1.4 in.)

O 45 mm dia. (1.8 in. dia.)

P 0.79 rad (45 °)

Q 11.5 mm (0.453 in.)

W1048484

Injection Pump Gear Puller (V3600-T-E3B, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG)

Application: Use for removing the injection pump gear from

governor shaft.

A 10 mm dia. (0.39 in. dia.)

B M16 × Pitch 1.5

C 19 mm (0.75 in.)

D 0.5 mm radius (0.02 in. radius)

E 0.87 rad (50 °)

F 10 mm (0.39 in.)

G 20 mm (0.79 in.)

H 5 mm (0.2 in.)

I 95 mm (3.7 in.)

J 125 mm (4.92 in.)

K 5 mm (0.2 in.)

L M16 × Pitch 1.5

M 30 mm (1.2 in.)

N 9.5 mm (0.37 in.)

O 11 mm (0.43 in.)

P 9.5 mm (0.37 in.)

Q 14.5 mm (0.571 in.)

R 5.5 mm radius (0.22 in. radius)

S 20 mm (0.79 in.)

T 20 mm (0.79 in.)

U 80 mm (3.1 in.)

W 12 mm (0.47 in.)

C2 Chamfer 2.0 mm (0.079 in.)

W1042094

G-43

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Timer Gear Puller (V3600-E3B, V3800DI-T-E3B, V3600-E3CB, V3800DI-T-E3CB, V3800DI-T-E3BG)

Application: Use for removing the timer gear from governor shaft.

A 27 mm (1.1 in.)

B 130 mm (5.12 in.)

C 15 mm (0.59 in.)

D 115 mm (4.53 in.)

E 26 mm dia. (1.0 in. dia.)

F 0.8 mm radius (0.03 in. radius)

G Chamfer 1 mm (0.04 in.)

H Less than 3 mm (Less than 0.1 in.)

I M14 x Pitch 1.5

J 0.52 rad (30 °)

K 32 mm (1.3 in.)

L M14 x Pitch 1.5

M 45 mm (1.8 in.)

N 30 mm (1.2 in.)

O 15 mm (0.59 in.)

P 0.8 mm radius (0.03 in. radius)

Q Chamfer 1 mm (0.04 in.)

R Less than 3 mm (Less than 0.1 in.)

S M24 x Pitch 1.5

W1040379

Timer 0° Restoring Jig (V3600-E3B, V3800DI-T-E3B, V3600-E3CB, V3800DI-T-E3CB, V3800DI-T-E3BG)

Application: Use for restoring 0° in the timer gear.

A 50.98 to 51.02 mm (2.007 to 2.008 in.)

B 8 mm dia. depth 12 mm (0.31 in. dia. depth 0.472 in.)

C 37 mm dia. (1.5 in. dia)

D 65 mm dia. (2.6 in. dia)

E 42 mm (1.7 in.)

F 24 mm (0.94 in.)

G 18 mm (0.71 in.)

H 36 mm (1.4 in.)

I 3.5 mm (0.14 in.)

J 1.5 mm (0.059 in.)

K 8 mm dia. (0.31 in. dia.)

L 0.09 rad (5 °)

M 0.09 rad (5 °)

W1040485

G-44

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Flywheel Stopper (for SAE Flywheel and Housing)

Application: Use to loosen and tighten the flywheel screw.

A 140 mm (5.51 in.)

B 80 mm (3.1 in.)

C 49.3 mm (1.94 in.)

D 49.3 mm (1.94 in.)

E 23.8 mm (0.937 in.)

F 23.8 mm (0.937 in.)

G 11 mm dia. (0.43 in. dia.)

H 56.5 mm (2.22 in.)

I 56.5 mm (2.22 in.)

J 8 mm (0.3 in.)

W1042515

Tool for Aligning the Crankcase 1 and 2

Application: Use for aligning the crankcase 1 and 2.

A 115 mm (4.53 in.)

B 56 mm (2.2 in.)

C 17 mm (0.67 in.)

D 20 mm (0.79 in.)

E 14 mm dia. (0.55 in. dia.)

F 11 mm dia. (0.43 in. dia.)

G 14 mm dia. (0.55 in. dia.)

H 17.5 mm (0.689 in.)

I 17.5 mm (0.689 in.)

J 35 mm (1.4 in.)

K 19 mm (0.75 in.)

W1047882

G-45

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Jig for Governor Connecting Rod

Application: Use for connecting the governor connecting rod to the

rack pin of the fuel injection pump assembly.

A 1 mm radius (0.04 in. radius)

B Chamfer 0.2 mm (0.008 in.)

C Chamfer 2 mm (0.08 in.)

D 35 mm dia. (1.4 in. dia.)

E Chamfer 1 mm (0.04 in.)

F Chamfer 0.1 mm (0.004 in.)

G 1 mm radius (0.04 in. radius)

H Chamfer 0.2 mm (0.008 in.)

I 8 mm radius (0.3 in. radius)

J 1 mm radius (0.04 in. radius)

K 1 mm radius (0.04 in. radius)

L Chamfer 0.2 mm (0.008 in.)

M Chamfer 0.2 mm (0.008 in.)

N 29 mm (1.1 in.)

O 6 mm (0.2 in.)

P 10.7 mm (0.421 in.)

Q 35 mm (1.4 in.)

R 99.3 mm (3.91 in.)

S 45.65 to 45.75 mm (1.798 to 1.801 in.)

T 145 mm (5.71 in.)

U 16.15 to 16.35 mm (0.6359 to 0.6437 in.)

V 3 mm (0.1 in.)

W 10 mm (0.39 in.)

X 8 mm (0.3 in.)

(1) Material: S45C-D (2) Permanent Magnet: 8 mm dia.

(0.3 in. dia.) Thickness: 3 mm (0.1 in.)

W1115114

G-46

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

G GENERAL

Nozzle Adaptor for Measuring Cylinder Compression Pressure (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-TE3BG)

Application: Use for measuring diesel engine compression pressure.

A 5 mm (0.2 in.)

B 115.9 to 116.1 mm (4.563 to 4.570 in.)

C 105 mm (4.13 in.) U 19 mm dia. (0.75 in. dia.)

D 4.0 mm dia., 4.0 mm depth (0.16 in dia., 0.16 in. depth) V 16 mm dia. (0.63 in. dia.)

E 6.0 mm (0.24 in.) W 14 mm dia. (0.55 in. dia.)

F 5.3 mm (0.21 in.) X 0.52 rad (30°)

G 1.9 mm (0.075 in.) Y 10 mm (0.39 in.)

H 3.5 mm (0.14 in.) Z 19 mm (0.75 in.)

I 11.6 to 12.1 mm (0.457 to 0.476 in.) a 14.94 to 15.00 mm dia. (0.5882 to 0.5905 in. dia.)

J 6.00 to 6.10 mm (0.237 to 0.240 in.) b 55 mm (2.2 in.)

K 13 mm dia. (0.51 in. dia.) c 66 mm (2.6 in.)

L 11 mm (0.43 in.) d 100.0 to 100.1 mm (3.937 to 3.940 in.)

M 5/8-18UNF-2B e 16.89 to 17.00 mm dia. (0.6650 to 0.6692 in. dia.)

N 14.000 to 14.011 mm dia. (0.55119 to 0.55161 in. dia.) f 7.10 to 7.20 mm dia. (0.280 to 0.283 in. dia.)

O 3 mm dia. (0.1 in. dia.) g 20.3 to 20.5 mm (0.800 to 0.807 in.)

P 15 mm (0.59 in.) h 3.0 mm dia. (0.12 in. dia.)

Q 44 mm (1.7 in.) C0.5 Chamfer 0.5 mm (Chamfer 0.02 in.)

R 55 mm (2.2 in.) C1 Chamfer 1 mm (Chamfer 0.04 in.)

S 22 mm (0.87 in.) C5 Chamfer 5 mm (Chamfer 0.2 in.)

(1) Material SS400 (2) Material S43C-D

(3) Pin 05012-00408 (4) O-ring 04811-00150 (5) Arc welding

3.0 mm dia., 44.5 to 45.0 mm depth

(0.12 in. dia., 1.76 to 1.77 in. depth)

G-47

MECHANISM

CONTENTS

1. FEATURE ........................................................................................................ M-1

2. ENGINE BODY ............................................................................................... M-3

[1] CYLINDER BLOCK................................................................................... M-3

[2] GEAR TRAIN ............................................................................................ M-4

[3] HALF-FLOATING HEAD COVER ............................................................ M-4

[4] CYLINDER HEAD ..................................................................................... M-5

[5] E-TVCS (V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB,

V3300-E3BG, V3600-T-E3BG) .................................................................. M-6

[6] CENTER DIRECT INJECTION SYSTEM (E-CDIS) (V3800DI-T-E3B,

V3800DI-T-E3CB, V3800DI-T-E3BG)....................................................... M-7

[7] PISTON (EXCEPT V3300-E3BG)............................................................ M-8

[8] BUILT-IN DYNAMIC BALANCER (FACTORY OPTION EXCEPT

V3600-E3CB, V3600-T-E3CB, V3800DI-T-E3CB)..................................... M-8

3. LUBRICATING SYSTEM ................................................................................ M-9

[1] OIL COOLER ............................................................................................ M-9

4. COOLING SYSTEM...................................................................................... M-10

[1] THERMOSTAT ........................................................................................ M-10

[2] BOTTOM BYPASS SYSTEM................................................................. M-11

5. FUEL SYSTEM ............................................................................................. M-12

[1] GOVERNOR (STANDARD MECHANICAL TYPE) ............................... M-12

[2] ELECTRONIC GOVERNOR (FACTORY OPTION FOR V3300-

E3BG, V3600-T-E3BG, STANDARD FOR V3800DI-T-E3BG) ............. M-14

(1) Software Block Diagram .................................................................... M-14

(2) Construction ....................................................................................... M-15

(3) Controlling mechanism ...................................................................... M-15

(4) Emergency Engine Stop Function ..................................................... M-16

(5) Main Components .............................................................................. M-18

(6) Wiring Diagram .................................................................................. M-19

[3] MECHANICAL TIMER WITH COLD START ADVANCE FUNCTION

(V3600-E3B, V3800DI-T-E3B, V3600-E3CB, V3800DI-T-E3CB,

V3800DI-T-E3BG).................................................................................... M-20

[4] THROTTLE NOZZLE (V3600-E3B, V3600-T-E3B, V3600-E3CB,

V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG).................................... M-22

[5] 2 STAGE DI NOZZLE (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-

T-E3BG) ................................................................................................... M-23

[6] INJECTION PUMP WITH F.S.P. (V3800DI-T-E3B, V3800DI-T-E3CB,

V3800DI-T-E3BG).................................................................................... M-24

6. TURBOCHARGER SYSTEM ........................................................................ M-25

[1] BOOST COMPENSATOR (OPTION FOR TURBOCHARGED

MODEL) ................................................................................................... M-25

7. INTAKE SYSTEM ......................................................................................... M-25

[1] INTAKE AIR HEATER (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-

T-E3BG) ................................................................................................... M-25

8. EXHAUST GAS RECIRCULATION (EGR) SYSTEM (V3600-T-E3B, V3800DI-T-E3B, V3600-T-E3CB, V3800-T-E3CB, V3600-T-E3BG,

V3800DI-T-E3BG) .......................................................................................... M-26

[1] GENERAL ................................................................................................ M-26

(1) Internal EGR (V3600-T-E3B, V3600-T-E3CB, V3600-T-E3BG) ........ M-26

(2) External / Mechanical EGR (V3800DI-T-E3B, V3800DI-T-E3CB,

V3800DI-T-E3BG) .............................................................................. M-27

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

1. FEATURE

DIESEL ENGINE

[V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG]

V3 series IDI engine is the vertical type 4-cycle diesel engine featuring the advanced performances shown below.

This is a small sized, high power and environment conscious engine, which employs the three valve system, two inlet valves with double ports, and one exhaust valve with the new E-TVCS VERSION-II. Thus, this engine achieves high combustion efficiency and complies with various regulations of exhaust gas.

Based upon the conventional model, Kubota developed a unique governor system and various new mechanisms which reduces exhaust emission, noise and vibration and realize durability and high torque.

W1013043

M-1

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

[V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG]

The V3 series DI engine is the vertical type 4-cycle diesel engine featuring the advanced performances shown below.

This is a small sized, high power and environment conscious engine, which employs the four valve system, two inlet valves with double ports, and two exhaust valves with the new E-CDIS. Thus, this engine achieves high combustion efficiency and complies with various regulations of exhaust gas.

Based upon the conventional model, Kubota developed a unique governor system and various new mechanisms which reduces exhaust emission, noise and vibration and realize durability and high torque.

W1029683

M-2

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

2. ENGINE BODY

[1] CYLINDER BLOCK

DIESEL ENGINE

This engine employs separate type crankcases - the crankcase 1 (1) with combustion part and the crankcase 2 (2) which supports the crankcase 1 (1) and reduces noise.

Since it is a hanger type, you can easily assemble / disassemble it. The cylinder is a linerless type which enables good cooling operation, less strain and good abrasion resistance.

(1) Crankcase 1 (2) Crankcase 2

(3) Oil Pan

W1013119

M-3

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

[2] GEAR TRAIN

DIESEL ENGINE

V3 series engine has 2 types of gear train. Standard type has 2 idle gears. Optional type has 1 idle gear. If the engine is optional 1 idle gear type, the engine model name has “C”. For example, V3600-E3B is standard gear train type (2 idle gears), V3600-E3CB is optional 1 idle gear type. Also, the rotating direction of fuel camshaft is opposite to standard type. For keeping the fire-order same as 1-3-4-2, high pressure pipe 2 and 3 are overcrossed.

(1) Injection Pump Gear (2) Idle Gear 2 (3) Idle Gear 1 (4) Cam Gear (5) Crank Gear

[A] Standard Gear Train Type

(V3600-E3B, V3600-T-E3B, V3800DI-T-E3B, V3300E3BG, V3600-T-E3BG, V3800DI-T-E3BG)

[B] Optional 1 Idle Gear Train

Typ e (V3600-E3CB, V3600-TE3CB, V3800DI-T-E3CB)

W1023697

[3] HALF-FLOATING HEAD COVER

The rubber packing is fitted in to maintain the head cover 0.5 mm (0.02 in.) or so off the cylinder head. This arrangement helps reduce noise coming from the cylinder head.

(1) Cylinder Head Cover (2) Rubber Packing

W1013327

M-4

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

[4] CYLINDER HEAD

DIESEL ENGINE

[V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG]

V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-TE3CB, V3300-E3BG and V3600-T-E3BG engine employ three valve system - two inlet valves and double ports, and one exhaust valve which produce good inlet inertia to improve combustion efficiency and volumetric efficiency. It also employs Kubota’s unique combustion chamber with multiple injection grooves.

Besides the conventional cross port system, it employs the forced cooling method between valves to eliminate heat distortion, thus enabling durable and reliable configuration.

W1013336

[V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG]

V3800DI-T-E3B, V3800DI-T-E3CB, and V3800DI-TE3BG engine employs four valve system, the cylinder head is provided with double intake ports in order to ensure appropriate air suction and give an optimum swirl.

(1) Intake (2) Exhaust

W1028781

M-5

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

[5] E-TVCS (V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB,

V3300-E3BG, V3600-T-E3BG)

The combustion chamber (2) is of Kubota’s exclusive E-TVCS combustion chamber type. Suction air is whirled to be mixed effectively with fuel, prompting combustion and reducing fuel consumption.

In the combustion chamber are installed throttle type injection nozzle (1) and rapid heating sheathed type glow plug (4). This glow plug assures easier than ever engine starts even at -15 °C (5 °F).

(1) Injection Nozzle (2) Combustion Chamber

(3) Piston (4) Glow Plug

W1013501

V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-TE3CB, V3300-E3BG and V3600-T-E3BG engines have two intake and one exhaust valves per cylinder, the rocker arm contacts a bridge arm (7) instead of the valve stem tip. The bridge arm then contacts both intake valves and causes two valves to open simultaneously.

(1) Rocker Arm Shaft (2) Rocker Arm (3) Exhaust Valve (4) Intake Valve

(5) Adjusting Screw (6) Push Rod (7) Bridge Arm

W1014671

M-6

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

[6] CENTER DIRECT INJECTION SYSTEM (E-CDIS) (V3800DI-T-E3B,

V3800DI-T-E3CB, V3800DI-T-E3BG)

V3 series DI engine adopts the Center Direct Injection System (E-CDIS), in which the injection nozzle is positioned upright at the center of the cylinder.

This system serves to inject fuel directly at the center of the cylinder. By so doing, injected fuel and suction air can be mixed more uniformly, leading to more stable, higher combustion performance. In other words, cleaner emission, higher power output, lower fuel consumption, lower operating noise and higher start-up performance have been achieved.

(1) Exhaust Valves (2) Piston

(3) Injection Nozzle (4) Intake Valves

W11094950

V3 series DI engine has two intake valves and two exhaust valves per each cylinder.

The rocker arm (1) contacts a bridge arm (2) instead of the valves stem tip.

The bridge arm then contacts both intake valves or bath exhaust valves and causes two valves to open simultaneously.

(1) Rocker Arm (2) Bridge Arm

W1014724

M-7

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

[7] PISTON (EXCEPT V3300-E3BG)

DIESEL ENGINE

Piston’s skirt is coated with molybdenum disulfide+, which reduces the piston slap noise and thus the entire operating noise.

+Molybdenum disulfide (MoS

The molybdenum disulfied serves as a solid lubricant, like a Graphite or Teflon. This material helps resist metal wears even with little lube oil.

(1) Molybdenum Disulfide

W1015665

[8] BUILT-IN DYNAMIC BALANCER (FACTORY OPTION EXCEPT V3600-

E3CB, V3600-T-E3CB, V3800DI-T-E3CB)

Engine are sure to vibrate by piston’s reciprocation. Theoretically, three-cylinder engines are much less prone to cause vibration than four-cylinder ones (second inertia, etc.). However, any engine has many moving parts in addition to its pistons and cannot be completely free from vibration.

The four cylinder engine is fitted with balance weight on crankcase to absorb the second inertia mentioned above and reduce vibration.

W1013617

M-8

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

3. LUBRICATING SYSTEM

[1] OIL COOLER

DIESEL ENGINE

V3 series engine has a water-cooled oil cooler that not only cools hot oil, but also warms the cool engine oil shortly after start up.

As shown in the figure, the oil flows inside the connected cooler plate, whereas coolant is kept circulating outside the cooler plate, thereby cooling down or warming the oil.

(A) Oil Inlet Port (B) Oil Outlet Port

(a) Coolant Inlet Port (b) Coolant Outlet Port

W10344770

M-9

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

4. COOLING SYSTEM

[1] THERMOSTAT

DIESEL ENGINE

Conventional thermostatically-controlled valves (outlet water temperature control type) open against the flow of coolant. In this design, the pressure (steam pressure + water pump’s discharge pressure) affects the open/close performance of such valve. In other words, the valve may be delayed in opening at a preset opening temperature opening suddenly, above the preset temperature. This is called the overshoot phenomenon.

The overshoot problem invites the undershoot phenomenon too. Too much water cooled by the radiator flows through the water passage, which suddenly closes the valve below the thermostat’s preset valve closing temperature.

A repeated cycle of such overshoot and undershoot phenomena is called the water temperature hunting. This hunting problem may adversely affects the cooling system parts, and also the engine and its related components.

To cope with this trouble, the V3 series engine is equipped with the flow control thermostat. The valve has a notch to control the coolant flow rate smoothly in small steps.

(1) Coolant Temperature (2) Time (3) Overshoot (4) Notch

(A) Valve Lift Versus Flow rate (B) Flow rate (C) At Short Valve Lift (D) At Medium Valve Lift (E) At High Valve Lift (F) Valve Lift

W1013684

M-10

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

[2] BOTTOM BYPASS SYSTEM

DIESEL ENGINE

Bottom bypass system is introduced in V3 series for

improving the cooling performance of the radiator.

While the temperature of coolant in the engine is low, the thermostat is held closed and the coolant is allowed to flow through the bypass pipe and to circulate in the engine.

When the temperature exceeds the thermostat valve opening level, the thermostat fully opens itself to prevent the hot coolant from flowing through the bypass into the engine.

In this way, the radiator can increase its cooling performance.

(1) Thermostat (A) Bypass Opened

(B) Bypass Closed

W1013406

M-11

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

5. FUEL SYSTEM

[1] GOVERNOR (STANDARD MECHANICAL TYPE)

The engine employs the separated fuel injection pump in combination with Kubota’s own small multifunction mechanical governor, which enable more dependability.

It also employs the torque limiting mechanism to control the maximum peak torque so that it complies with the regulations of exhaust gas.

This mechanism maintains engine speed at a constant level even under fluctuating loads, provides stable idling and regulates maximum engine speed by controlling the fuel injection rate.

This engine uses a mechanical governor that controls the fuel injection rate at all speed ranges (from idling to maximum speed) by utilizing the balance between the flyweight’s centrifugal force and spring tension.

A governor shaft for monitoring engine speed is independent of the injection pump shaft and rotates at twice the speed of conventional types, providing better response to load fluctuation and delivering greater engine output.

DIESEL ENGINE

W1013830

Q At Start

The stop solenoid (energized-to-run type) is powered to release the stop lever.

As no centrifugal force is applied to flyweight (2), low tension of start spring (1) permits control rack to move the starting position, supplying the amount of fuel required to start the engine.

(1) Start Spring (2) Flyweight

W1013967

M-12

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

Q At Idling

Turn the speed control lever (6) clockwise to idle the engine. It tensions the governor spring (3) to pull the fork lever 2 (1).

When the fork lever 2 is pulled, it moves the torque spring pin (7) and the fork lever 1 (5) in the direction of the arrow A to restrain the weight. In combination with the start spring tension, it is balanced with the centrifugal force of flywheel weight to keep idling.

(1) Fork Lever 2 (2) Start Spring (3) Governor Spring (4) Flyweight

(5) Fork Lever 1 (6) Speed Control Lever (7) Spring Pin

W1014034

Q At rated speed with full load and overload

As the speed control lever is changed from the middle speed to high speed, the governor spring tension increases to compress the torque spring and move the fork lever 1 in the direction of the arrow A.

The fork lever 2 moves until it reaches the output limiting bolt to keep rated rotation and rated output.

When the engine is overloaded, the engine rotating speed decreases and the centrifugal force of flywheel weight decreases. Then the torque spring moves the fork lever 1 in the direction of arrow A.

The control rack moves in the direction that increases fuel supply to increase the output. It is balanced with the centrifugal force of the flywheel weight to produce lowspeed output (torque output).

(1) No-load Maximum Rotation (2) Output Limiting Bolt

(3) Torque Limiting Bolt (4) Idling Adjusting Bolt

W1014276

M-13

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

NOTEQ

DIESEL ENGINE

Q To stop engine

When the stop solenoid is turned off, the spring tension of the solenoid is released, the rod extrudes and the stop lever moves the control rack in the direction of the arrow B which stops the engine.

To stop the engine manually, move the external stop lever to the left.

W1014393

[2] ELECTRONIC GOVERNOR (FACTORY OPTION FOR V3300-E3BG,

V3600-T-E3BG, STANDARD FOR V3800DI-T-E3BG)

The electronic governor works in conjunction with a mechanical governor. The function of the electronic governor is, by isochronous control, to maintain constant engine speed the prescribed level, even if the load changes, by controlling the fuel.

(1) Software Block Diagram

(1) Target of Engine Speed (2) ECU (3) Speed Control

(4) Current Control (5) PWM (6) Proportional Solenoid

(7) Engine (8) Engine Speed Sensor

(9) Current of Proportional

Solenoid

(10) Engine Speed

• Feedback Signal : Equivalent fuel injection quantity substituted from the current of engine speed and proportional solenoid.

M-14

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

(2) Construction

DIESEL ENGINE

(1) Injection Pump (2) Control Rack

(3) Proportional Solenoid (4) ECU

(3) Controlling mechanism

(1) Quantity Reduction (2) Quantity Increase

(3) Fuel Quantity (4) Engine Speed

(5) Engine Speed (6) Accelerate Lever (fixed at

maximum speed)

(5) Mechanical Governor Fuel

Control

(7) Governor Spring (8) Governor Weight

(6) Isochronous Control (7) Mechanical Governor

Operating Curve

A : Within the range of the mechanical governor, free speed control occurs. B : If the engine rotational speed increases, priority is given to the mechanical governor control function.

M-15

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

(4) Emergency Engine Stop Function

DIESEL ENGINE

(1) Battery (2) Key Switch (3) Alternator L Terminal

(4) Oil Pressure Switch (5) Water Temperature Switch

(6) Option (7) Engine Speed Sensor

(8) ECU (9) Proportional Solenoid

1. Circuit design The ECU consists of the following function: speed control, delay timer that serves to delay detection until the oil pressure rises; sensor function that senses an oil pressure, water temperature or battery charge error and holds the error status; emergency stop function that deactivates the delay timer and lock-in circuits and forces the ECU to turn on.

2. Function details (See the block diagram.)

- Speed control

Rotational speed is constantly maintained at the prescribed level, even if the load changes, fuel control according to isochronous control of the Proportional Solenoid.

- Delay timer function

The timer provides for a delay from the instant the starter is released to the instant the sensors get started. The timer is activated by the voltage at the key switch’s No. 50 terminal.

- Sensor function

This function serves to sense the oil pressure switch, water temperature switch, alternator L terminal and engine speed sensor. If any of the 4 elements gets grounded for a specified time or longer, the function is activated to hold this status.

- Emergency stop function

The function is used to deactivate the delay timer and force the engine to a stop.

3. Circuit behavior For a certain time after the key switch has been set to the ST position to get the engine started, the oil pressure, water temperature and battery charge status are not detected for an error and an emergency stop. When the key switch has been returned from the ST to ON position (AC terminal active), the ECU gets ready for error detection after a specified delay time. If the key switch is placed to the OFF position or any of the water temperature, oil pressure switch, battery charge circuit and engine speed sensor is detected, the ECU is activated to turn off the solenoid power.

M-16

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

Q Emergency stop by sensor activation

1. A specified time after the key switch has been

returned from the ST to ON position, the system gets ready to detect an error.

2. The oil pressure switch stays out of function while the engine is at a stop. When the oil pressure is as specified, the switch gets back to normal after the engine has got restarted.

3. If any of the sensors detects an error, the proportional solenoid power is interrupted, which brings the engine to a stop.

(1) Key Switch (2) Oil Pressure Switch (3) Proportional Solenoid

(A) Engine Started (B) Delay Timer (C) Error Detected

W1030317

Q Usual stop

1. A specified time after the key switch has been returned from the ST to ON position, the system gets ready to detect an error.

2. The oil pressure switch stays out of function while the engine is at a stop. When the oil pressure is as specified, the switch gets back to normal after the engine has got restarted.

3. When the key switch is set to the OFF position, the proportional solenoid power is interrupted, which brings the engine to a stop.

(1) Key Switch (2) Oil Pressure Switch (3) Proportional Solenoid

(A) Engine Started (B) Delay Timer

W1016017

M-17

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

(5) Main Components

DIESEL ENGINE

Q ECU

It processes the speed signal received from the speed sensor and compares it to a reference speed set with Calibration Program. The output of the control unit is a pulse width modulated signal to the proportional solenoid.

W11132660

Q Engine Speed Sensor

The engine speed sensor detects engine speed by converting mechanical motion into electrical signals.

W11134530

Q Proportional Solenoid

The actuator converts a pulse width modulated signal received from the controller, to an output rod position, proportional to the duty cycle of the pulse width modulated signal.

W11135100

M-18

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

(6) Wiring Diagram

DIESEL ENGINE

(1) Actuator (2) Speed Switch (3) Slow Down Switch (4) Option (5) Manual Stop Sensor

(6) Speed Sensor (7) Water Temperature Sensor (8) Oil Switch (9) Water Temperature Switch (10) Pilot Lamp

(11) Hour Meter (12) Control Unit (13) Glow Plug or Intake Air Heater (14) Glow Plug Relay (15) Start Relay

M-19

(16) Key Switch (17) Slow Blow Fuse (18) Alternator (19) Starter (20) Battery

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

[3] MECHANICAL TIMER WITH COLD START ADVANCE FUNCTION

(V3600-E3B, V3800DI-T-E3B, V3600-E3CB, V3800DI-T-E3CB, V3800DI-TE3BG)

This device makes the fuel injection timing advanced by engine oil temperature and engine rpm in order to improve the engine cold start-ability and reduce the blue white smoke.

W1017432

Q Thermal control

When the engine rpm is low and engine oil temperature is under 30 °C, the fuel injection timing is max. advanced.

When the engine rpm is low and engine oil temperature is higher than 70 °C, the fuel injection timing advance is 0 degree.

The fuel injection timing advance by engine oil temperature is controlled with shape memory (storage) spring.

(1) Timer Flyweight (2) Injection Pump Gear (3) Fuel Camshaft

[A] At Cold [B] At Hot

(a) No Gap Between Timer and

Injection Pump Gear (b) Spring Force (c) Advanced Injection Timing (d) Gap Between Timer and

Injection Pump Gear (e) Advanced Injection Timing

(degree) (f) Engine Oil Temperature

W1017478

M-20

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

Q Speed control (Except V3800DI-T-E3BG)

If the engine rpm is higher than a certain rpm, the fuel injection timing advance by engine oil temperature does not work. At that time, the quantity of advance timing is variably changed by centrifugal force of the timer flyweights which meets engine rpm.

(1) Timer Flyweight (2) Injection Pump Gear (3) Fuel Camshaft

[A] At Low rpm [B] At High rpm

(a) No Gap Between Timer and

Injection Pump Gear (b) Centrifugal Force (c) Advanced Injection Timing (d) Gap Between Timer and

Injection Pump Gear (e) Rotation (f) Advanced Injection Timing

(Degree) (g) Engine rpm

W1017759

M-21

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

[4] THROTTLE NOZZLE (V3600-E3B, V3600-T-E3B, V3600-E3CB,

V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG)

The small-size DENSO made OPD mini nozzle is of a

flat-cut-provided double throttle type.

This type of nozzle is designed to control the injection quantity when the lift rate is low at start of injection, and to cut down on the knocking sound caused by excessive fuel injection by giving the needle valve section more taper than before to prevent the rapid increase in the injection quantity when the initial injection turns into the full-force injection.

Also, employed to prevent the injection quantity loss in the throttle section caused by carbon, the flat cut provided at the needle valve section helps the throttle withstand long use and reduce as much knocking sound as when it was new.

The heat seal is employed to improve the durability and reliability of the nozzle.

(1) Bar Filter (2) Nozzle Holder Body (3) Adjusting Washer (4) Nozzle Spring (5) Push Rod

(6) Retaining Nut (7) Nozzle Piece (8) Needle Valve (9) Heat Seal

(10) Gasket

W1015902

M-22

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

[5] 2 STAGE DI NOZZLE (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-

E3BG)

Exhaust and noise regulations are becoming increasingly strict, particularly in regard to the reduction of NOx (nitrogen oxides) and particulates.

The two-spring nozzle holder has been developed to reduce NOx (nitrogen oxides) and particulates from direct injection diesel engine exhaust.

Q Features

The two-spring nozzle holder limits needle valve lift at initial valve opening to throttle the injection quantity. Main injection occurs when the in-line pressure has increased sufficiently to move the needle valve through its full lift.

This gives the following features.

• Improved engine stability at low and intermediate speeds.

• Decreased engine hunting and surge.

• Decreased noise at idling.

• Decreased idling speed because of improved engine stability.

• Stabilized fuel injection characteristics from the injection pump and nozzle system, and easier matching of governor characteristics to engine demand.

(1) Nozzle Holder Body (2) 1st Stage Injection Pressure

Adjusting Shim (3) First Spring (4) Pressure Pin (5) Spring Seat (6) 2nd Stage Injection Pressure

Adjusting Shim

(7) Second Spring (8) Pre-lift Adjusting Spring Seat (9) Chip-packing

(10) Max-lift Adjusting Washer

(11) Retaining Nut

(12) Nozzle

W1014568

A-B : First Spring’s Set Force B-C-D : Combined Force of

First and Second Springs P1 : First Opening Pressure P2 : Second Opening Pressure

L : Full Needle Valve Lift l : Needle Valve Pre-lift

X1 : Cam Angle (°) Y1 : Injection Rate (mm3/°) X2 : Needle Valve Lift (mm) Y2 : In-line Pressure

W1014795

Q First opening pressure

The force of the high pressure fuel delivered by the injection pump acts to push the needle valve up. When this

force exceeds the set force of the first spring, the nozzle’s needle valve pushes the first pushrod up and the valve opens. (First opening pressure is represented by point E in the left hand figure, and point A in the right hand figure.)

Q Second opening pressure

When the first pushrod has been lifted through the pre-lift, it contacts the second pushrod. As the set force of the second spring is acting on the second pushrod, the combined forces of both the first spring and the second spring then act on the needle valve, which will not lift unless these forces are overcome.

When the high pressure fuel (ie, in-line pressure) overcomes the combined forces of the first and second springs, the needle valve is again lifted and main injection can begin. (Second opening pressure is represented by point F in the bottom left hand figure and B-C in the above figure.)

M-23

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

[6] INJECTION PUMP WITH F.S.P. (V3800DI-T-E3B, V3800DI-T-E3CB,

V3800DI-T-E3BG)

The fuel injection pump with F.S.P. (Fine Spill Port) mechanism is equipped with two functions: speed timer function and injection rate control function.

The former function works like this. As the rpm is low, the injection timing gets delayed. This helps cut down on NOx and operating noise.

The latter function serves to keep down the initial injection rate and keep up the later injection rate, which cuts down on NOx and PM as well.

(1) Fine Spill Port (F.S.P.) (2) Plunger Chamber (3) Main Port (4) Cylinder

(5) Plunger (6) F.S.P. Stroke (7) Leaking Fuel at Initial Fuel

Pressure-Feed Stage

W1014969

M-24

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

6. TURBOCHARGER SYSTEM

[1] BOOST COMPENSATOR (OPTION FOR TURBOCHARGED MODEL)

The boost compensator is controlled by the boost pressure of the control mechanism which controls transient smoke caused by oversupply of fuel when the engine starts and accelerates.

When the boost pressure is lower than working pressure of the boost actuator (1), it prevents oversupply of fuel to reduce transient smoke.

When the boost pressure is higher than working pressure of the boost actuator (1), it controls the supply of fuel to the equivalent of maximum power / rated speed output.

The boost compensator adjusting screws (2) are set and tamper-proof capped in factory, so never take off the tamper-proof cap and readjust the screws.

(1) Boost Actuator (2) Boost Compensator Adjusting

Screw

W1014569

7. INTAKE SYSTEM

[1] INTAKE AIR HEATER (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-

E3BG)

The intake air heater is introduced in order to further improve the starting performance and to reduce the white smoke at cold starting.

The intake air heater is mounted on the intake manifold. In this new construction, there is no need to arrange any glow plug on the cylinder head. This means that a multi-valve design can be implemented and that the starting performance and serviceability are enhanced.

W1015544

M-25

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

8. EXHAUST GAS RECIRCULATION (EGR) SYSTEM (V3600-T-E3B, V3800DI-T-E3B, V3600-T-E3CB, V3800DI-T-E3CB, V3600-T-E3BG, V3800DI-T-E3BG)

[1] GENERAL

In order to meet with the strict emission regulations, Kubota has adopted the EGR on the V3600-T and V3800DI-T. The nitrogen oxide (NOx) which is a hazardous component in exhaust gas is generated by oxidation of nitrogen in the air, due to rise of the combustion temperature in cylinders. The EGR is a system in which the exhaust gas with lean oxygen is cooled and returned to cylinders again in order to lower the combustion temperature. As a result, NOx can be decreased.

And EGR has 2 types. One is an internal EGR, the other is an external EGR.

(1) Internal EGR (V3600-T-E3B, V3600-T-E3CB, V3600-T-E3BG)

Internal EGR consists of 2 stage exhaust camshaft. At the exhaust stroke, 1st stage exhaust cam opens the exhaust valve, and exhaust gas flows into the exhaust manifold. At the suction stroke, intake valve is open and fresh air flows into the cylinder, and also, 2nd stage exhaust cam opens the exhaust valve, and exhaust gas in the exhaust manifold is sucked back into the cylinder.

(1) Camshaft (2) 2 Stage Exhaust Cam

(a) Exhaust Stage (b) EGR Stage (c) T.D.C. (Top Dead Center) (d) Intake Stage (e) B.D.C. (Bottom Dead

Center)

W1174459

M-26

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

(2) External / Mechanical EGR (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG)

(1) Thermo Valve (2) Mechanical EGR Valve (3) Reed Valve

(4) Intake Manifold (5) Exhaust Manifold (6) EGR Cooler

(a) Boost Pressure (b) Coolant Temperature (c) Cooled EGR Gas (d) To The Intake Manifold (e) Fresh Air

(f) Cooled EGR Gas Merges

with Fresh Air (g) Exhaust (h) Coolant Inlet (i) Coolant Outlet

External / Mechanical EGR consists of water cooled EGR cooler, mechanical EGR valve, reed valve and thermo

valve.

When the coolant temperature is getting higher, thermo valve is open and the boost pressure of intake manifold

gets to reach the diaphragm of mechanical EGR valve.

If the coolant temperature is high, but the boost pressure is low, the EGR valve does not open. If coolant temperature is high, boost pressure is also high, EGR valve is open and cooled EGR gas through the water cooled EGR cooler flows into the intake manifold. And the reed valve between EGR valve and intake manifold prevents the fresh air flowing into EGR system.

M-27

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

(A) EGR Cooler

DIESEL ENGINE

The EGR (Exhaust Gas Recirculation) cooler is used to lower combustion temperature and efficiently cool EGR gas, with the aim of reducing the NOx that is in the exhaust gas of diesel engine.

The EGR cooler is placed between the exhaust manifold and the intake manifold of the engine and returns the cooled exhaust gases to the engine suction side.

The EGR cooler has resistant to clogging up, compact and efficient tubes internally.

(1) Pipe (2) EGR Cooler (3) Exhaust Manifold (4) Flange (5) Tube

A Coolant Inlet Port B Coolant Outlet Port

W1175338

(B) Thermo Valve

Thermo valve controls boost pressure “ON / OFF” for the EGR valve.

If the coolant temperature is low, thermo valve is closed, so that boost pressure does not reach to the EGR valve.

If the coolant temperature is high, thermo valve is open, so that boost pressure reaches to the EGR valve.

(1) Thermo Valve (2) Coolant Temperature

(a) Boost Pressure From Intake

Manifold

(b) Boost Pressure To EGR

Valve (c) Open (d) Close

W1175753

M-28

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

Mechanical EGR valve controls the flow of cooled

EGR gas to the intake manifold.

If the boost pressure is low, EGR valve is closed, so

cooled EGR gas does not flow to the intake manifold.

If the boost pressure is getting higher, EGR valve is opening and cooled EGR gas is flowing to the intake manifold.

(1) Mechanical EGR Valve (2) EGR Valve Lift (3) Boost Pressure

(a) Boost Pressure From Intake

Manifold (b) Cooled EGR Gas (c) Cooled EGR Gas To The

Intake Manifold (d) Open (e) Close

W1176088

(D) Reed Valve

The reed valve is provided at the confluence of exhaust gas after passing the EGR valve, and intake air. It operates by the pressure difference between inside of the crankcase and the atmosphere, and prevents back flow of the mixture of exhaust gas and intake air generated by the piston and valves. It is used as the secondary air introduction device for the countermeasure against exhaust gas of four-cycle engines.

(1) Valve (2) Case

(3) Stopper (4) Screw

W1176594

M-29

SERVICING

CONTENTS

1. TROUBLESHOOTING ...................................................................................... S-1

[1] ENGINE BODY ..........................................................................................S-1

[2] ELECTRONIC GOVERNOR (FACTORY OPTION FOR V3300-

E3BG, V3600-T-E3BG / STANDARD FOR V3800DI-T-E3BG) .............S-5

2. SERVICING SPECIFICATIONS ......................................................................S-7

3. TIGHTENING TORQUES ..............................................................................S-19

[1] TIGHTENING TORQUES FOR GENERAL USE SCREWS, BOLTS

AND NUTS...............................................................................................S-19

[2] TIGHTENING TORQUES FOR SPECIAL USE SCREWS, BOLTS

AND NUTS...............................................................................................S-20

4. CHECKING, DISASSEMBLING AND SERVICING......................................S-22

[1] CHECKING AND ADJUSTING ...............................................................S-22

(1) Engine Body........................................................................................S-22

(2) Lubricating System .............................................................................S-25

(3) Cooling System ...................................................................................S-25

(4) Fuel System ........................................................................................S-28

(5) Electrical System ................................................................................S-34

(6) Turbocharger ......................................................................................S-38

(7) Electronic Governor (Factory Option for V3300-E3BG, V3600-T-

E3BG / Standard for V3800DI-T-E3BG) .............................................S-39

[2] EGR SYSTEM...........................................................................................S-44

(1) Checking the function of EGR system (V3800DI-T-E3B, V3800DI-T-

E3CB, V3800DI-T-E3BG only)............................................................S-44

[3] DISASSEMBLING AND ASSEMBLING..................................................S-46

(1) Draining Oil and Coolant .....................................................................S-46

(2) External Components .........................................................................S-47

(3) TURBOCHARGER(V3600-T-E3B, V3800DI-T-E3B, V3600-T-

E3CB, V3800DI-T-E3CB, V3600-T-E3BG, V3800DI-T-E3BG)...........S-48

(4) Exhaust Gas Recirculation (EGR) (V3800DI-T-E3B, V3800DI-T-

E3CB, V3800DI-T-E3BG) ...................................................................S-49

(5) Cylinder Head and Valves ..................................................................S-51

(6) Thermostat ..........................................................................................S-57

(7) Injection Nozzle...................................................................................S-58

(8) Water Pump and Oil Cooler ................................................................S-71

(9) Gear Case and Timing Gears .............................................................S-72

(10)Piston and Connecting Rod ................................................................S-75

(11)Flywheel and Crankshaft ....................................................................S-79

(12)Intake Air Heater [V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-

E3BG] .................................................................................................S-83

(13)Starter .................................................................................................S-83

(14)Alternator ............................................................................................S-83

[4] SERVICING ..............................................................................................S-86

(1) Cylinder Head .....................................................................................S-86

(2) Timing Gears ......................................................................................S-96

(3) Piston and Connecting Rod ..............................................................S-101

(4) Crankshaft.........................................................................................S-104

(5) Cylinder .............................................................................................S-107

(6) Oil Pump ...........................................................................................S-108

(7) Starter ...............................................................................................S-108

(8) Alternator.......................................................................................... S-110

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

1. TROUBLESHOOTING

[1] ENGINE BODY

DIESEL ENGINE

Symptom Probable Cause Solution

Engine Does Not Start No fuel Replenish fuel G-11

Air in the fuel system Vent air G-11

Water in the fuel system Change fuel and

repair or replace fuel system

Fuel hose clogged Clean or replace G-11, 31

Fuel filter clogged Replace G-13, 15

Excessively high viscosity of fuel or engine oil at low temperature

Fuel with low cetane number Use specified fuel 5, 6, G-7

Fuel leak due to loose injection pipe retaining nut Tighten retaining nut S-51, 53

Incorrect injection timing Adjust S-28

Fuel camshaft worn Replace S-66, 67

Injection nozzle clogged Clean or replace

Injection pump malfunctioning Repair or replace S-30, 31, 68

Seizure of crankshaft, camshaft, piston, cylinder or bearing

Compression leak from cylinder Replace head gasket,

Improper valve timing Correct or replace

Piston ring and cylinder worn Replace S-77, 78,

Excessive valve clearance Adjust S-24

Stop solenoid malfunctioning Replace S-38

Use specified fuel or engine oil

(V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG) Repair or replace (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG)

Repair or replace –

tighten cylinder head screw, (glow plug (V3600 E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG only)) and nozzle holder

timing gear

Reference Page

G-11, 13, 15

5, 6, G-7, 10

S-32, 33, 34,

51, 53

S-51, 52, 53,

54, 55, 56

S-73

102, 103,

107

W1465430

S-1

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

Symptom Probable Cause Solution

Reference Page

Starter Does Not Run Battery discharged Charge G-19, 20,

S-34

Starter malfunctioning Repair or replace S-36, 83,

108

Key switch malfunctioning Replace –

Wiring disconnected Connect –

Engine Revolution Is Not Smooth

Fuel filter clogged or dirty Replace G-13, 15

Air cleaner clogged Clean or replace G-12, 28

Fuel leak due to loose injection pipe retaining nut Tighten retaining nut S-51, 53

Injection pump malfunctioning Repair or replace S-30, 31,

Incorrect nozzle opening pressure Adjust

(V3600-E3B,

S-32, 33,

34, 51, 53 V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG) Repair or replace (V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG)

Injection nozzle stuck or clogged Repair or replace S-32, 33,

34, 51, 53

Governor malfunctioning Repair S-63, 64

Turbocharger bearing worn out Replace the

S-48 turbocharger assembly

Turbocharger shaft bent Replace the

S-48 turbocharger assembly

Turbocharger fin or other part damaged due to foreign matters

Replace the turbocharger

S-48

assembly

Either White or Blue Exhaust Gas Is Observed

Excessive engine oil Reduce to specified

G-10

level

Piston ring and cylinder worn or stuck Repair or replace S-77, 78,

102, 103,

107

Incorrect injection timing Adjust S-28

Oil Leak into Exhaust Pipe or Suction Pipe

Waste oil pipe clogged or deformed Repair or replace S-48

Turbocharger’s piston ring seal faulty Replace the

S-48 turbocharger assembly

W1467289

S-2

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

Symptom Probable Cause Solution

Either Black or Dark Gray Exhaust Gas Is Observed

Overload Reduce the load –

Low grade fuel used Use specified fuel 5, 6, G-7

Reference Page

Fuel filter clogged Replace G-13, 15

Air cleaner clogged Clean or replace G-12, 28

Deficient nozzle injection Repair or replace

nozzle

S-32, 33,

34, 51, 53

Deficient Output Incorrect injection timing Adjust S-28

Engine’s moving parts seem to be seizing Repair or replace –

Injection pump malfunctioning Repair or replace S-30, 31,

Deficient nozzle injection Repair or replace

nozzle

Compression leak Check the

S-32, 33,

34, 51, 53

S-22, 23 compression pressure and repair

Gas leak from exhaust system Repair or replace S-38, 48

Air leak from compressor discharge side Repair or replace S-38, 48

Air cleaner dirty or clogged Clean or replace G-12, 28

Compressor wheel turning heavily Replace the

S-48 turbocharger assembly

Excessive Lubricant Oil Consumption

Piston ring’s gap facing the same direction Shift ring gap

direction

S-77, 78

Oil ring worn or stuck Replace S-77, 78,

102, 103

Piston ring groove worn Replace piston S-78, 103

Valve stem and valve guide worn Replace S-57, 90,

Crankshaft bearing and crank pin bearing worn Replace S-78, 82,

105, 106

Oil leaking due to defective seals or packing Replace –

Fuel Mixed into Lubricant Oil

Injection pump’s plunger worn Repair or replace S-30, 31,

Deficient nozzle injection Repair or replace

nozzle

S-32, 33,

34, 51, 53

Injection pump broken Replace S-68

Water Mixed into Lubricant Oil

Head gasket defective Replace S-55, 56

Cylinder block or cylinder head flawed Replace S-87

S-3

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

Symptom Probable Cause Solution

Reference Page

Low Oil Pressure Engine oil insufficient Replenish G-10

Oil strainer clogged Clean S-75

Relief valve stuck with dirt Clean S-73

Relief valve spring weaken or broken Replace S-73

Excessive oil clearance of crankshaft bearing Replace S-82, 106

Excessive oil clearance of crankpin bearing Replace S-78, 105

Excessive oil clearance of rocker arm Replace S-54, 94

Oil passage clogged Clean –

Different type of oil Use specified type of

5, 6, G-7

oil

Oil pump defective Replace S-72, 108

High Oil Pressure Different type of oil Use specified type of

5, 6, G-7

oil

Relief valve defective Replace S-73

Engine Overheated Engine oil insufficient Replenish G-10

Fan belt broken or elongated Replace or adjust S-25, 26

Coolant insufficient Replenish G-9, 17

Radiator net and radiator fin clogged with dust Clean –

Inside of radiator corroded Clean or replace G-9, 17

Coolant flow route corroded Clean or replace G-9, 17

Radiator cap defective Replace S-26

Overload running Reduce the load –

Head gasket defective Replace S-55, 56

Incorrect injection timing Adjust S-28

Unsuitable fuel used Use specified fuel 5, 6, G-7

Battery Quickly Discharged

Battery electrolyte insufficient Replenish distilled

water and charge

Fan belt slips Adjust belt tension or

G-14, 19,

S-25, 26

replace

Wiring disconnected Connect –

Rectifier defective Replace S-37, 83

Alternator defective Replace S-37, 83

Battery defective Replace G-14, 19,

20, S-34

W1469235

S-4

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

IMPORTANTQ

DIESEL ENGINE

[2] ELECTRONIC GOVERNOR (FACTORY OPTION FOR V3300-E3BG,

V3600-T-E3BG / STANDARD FOR V3800DI-T-E3BG)

• The engine trouble divides into an electronic governor, the main body of the engine, and the operating constancy.

Engine will not start.

Cause Corrections Refer to Checking

Starter Operating but Not Starting the Engine

Starter Does Not Operate Check emergency stop switch Emergency stop switch

Engine stopped automatically. Engine can be started again and stops again 10 seconds later.

Cause Corrections Refer to Checking

Trouble in the electronic governor composition parts

Check operation of the solenoid Solenoid

Check harness of the solenoid Solenoid

Check harness of the glow plug / Intake air heater

Check blinking pattern of the glow lamp (1)

Glow plug / Intake air heater

Signal pattern sheet

W1039573

(1) Glow Lamp

Engine speed cannot be controlled.

Cause Corrections Refer to Checking

Engine speed does not increase/ decrease

Engine runs rough Check operation of the solenoid Solenoid

Check slow down switch Slow down switch

Check speed switch Speed switch

Check operation of the solenoid Solenoid

Check harness of speed sensor Harness

W1041393

W1041483

S-5

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

Blinking Pattern of Glow Lamp Cause Refer to Checking

(1-Long and 1-Short) Overrunning (more than

Solenoid

115 %)

(1-Long and 2-Short) Low oil pressure Oil sensor

(1-Long and 3-Short) Defect of alternator Alternator

DIESEL ENGINE

(1-Long and 4-Short) Coolant temperature is

Water temperature sensor

abnormal

(1-Long and 5-Short) Emergency stop switch

Emergency stop switch

operated

(2-Long and 1-Short) Abnormality of speed

Speed sensor

sensor

(2-Long and 2-Short) Solenoid malfunction Solenoid

(2-Long and 4-Short) Disconnection of water

Water temperature sensor

temperature sensor

(2-Long and 5-Short) Short circuit of water

Water temperature sensor

temperature sensor

(2-Long and 6-Short) Disconnection of alternator

L Te rm i na l

S-6

Alternator L Term i n a l

W1042224

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

DIESEL ENGINE

2. SERVICING SPECIFICATIONS

ENGINE BODY

Item Factory Specification Allowable Limit

Cylinder Head Surface Flatness – 0.05 mm

0.002 in.

Top Clearance

[V3600-E3B, V3600-T-E3B, V3600-E3CB, V3600-T-E3CB, V3600-T-E3BG]

1.05 to 1.27 mm

0.0414 to 0.0500 in.

–

[V3300-E3BG]

0.72 to 0.90 mm

–

0.0283 to 0.0354 in.

[V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG]

0.701 to 0.930 mm

–

0.0276 to 0.0366 in.

Compression Pressure

[V3600-E3B, V3600-E3CB, V3300-E3BG]

[V3600-T-E3B, V3600-T-E3CB, V3600-T-E3BG]

[V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG]

4.31 MPa /

250 min

−1

44.0 kgf/cm

250 min

−1

626 psi /

250 min

−1

3.92 MPa /

250 min

−1

40.0 kgf/cm

250 min

35.4 kgf/cm

250 min

−1

569 psi /

−1

3.47 MPa /

−1

504 psi /

−1

(rpm)

3.26 MPa /

250 min

−1

33.2 kgf/cm

250 min

−1

472 psi /

250 min

2.99 MPa /

250 min

−1

30.5 kgf/cm

250 min

−1

434 psi /

250 min

2.56 MPa /

250 min

26.1 kgf/cm

250 min

−1

371 psi /

250 min

(rpm)

−1

(rpm)

−1

(rpm)

−1

(rpm)

Variance Among Cylinders – 10 % or less

W14711090

S-7

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

ENGINE BODY (Continued)

Item Factory Specification Allowable Limit

Valve Seat

[V3600-E3B, V3600-T-E3B,

Angle (Intake)

V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG]

Angle (Exhaust)

1.0 rad 60 °

0.79 rad 45 °

DIESEL ENGINE

–

Width

[V3800DI-T-E3B, V3800DI-T-E3CB,

Angle (Intake)

V3800DI-T-E3BG]

Angle (Exhaust)

Width (Intake)

Width (Exhaust)

Valve Face Angle (Intake)

Angle (Exhaust)

Valve Recessing

[V3600-E3B, V3600-T-E3B,

Intake

V3600-E3CB, V3600-T-E3CB, V3300-E3BG, V3600-T-E3BG]

Exhaust

2.12 mm

0.0835 in.

1.0 rad 60 °

0.79 rad 45 °

1.6 to 2.0 mm

0.063 to 0.078 in.

2.3 to 2.6 mm

0.091 to 0.10 in.

1.0 rad 60 °

0.79 rad 45 °

−0.2 to 0 mm

−0.007 to 0 in.

−0.050 to 0.15 mm

−0.0019 to 0.0059 in.

–

0.4 mm

0.02 in.

0.4 mm

0.02 in.

[V3800DI-T-E3B, V3800DI-T-E3CB, V3800DI-T-E3BG]

Intake

Exhaust

S-8

0.60 to 0.80 mm

0.024 to 0.031 in.

0.850 to 1.05 mm

0.0335 to 0.0413 in.

1.2 mm

0.047 in.

1.2 mm

0.047 in.

Kubota V3600-E3, V3600-T-E3, V3800-DI-T-E3, V3300-E3BG, V3600-T-E3BG Operator Manual

Specifications and Main Features

Frequently Asked Questions

User Manual