Kubota L2501 Service Manual

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Page 1

WORKSHOP MANUAL

KiSC issued 09, 2014 A

TRACTOR

L2501

Page 2

TO THE READER

KiSC issued 09, 2014 A

This Workshop Manual tells the servicing personnel about the mechanism, servicing and maintenance of the L2501. It contains 4 parts: "Information", "General", "Mechanism" and "Servicing".

 Information

This section primarily contains information below.

• Safety First

• Safety Decal

• Specifications

• Dimensions

 General

This section primarily contains information below.

• Engine Identification

• Model Identification

• General Precautions

• Maintenance Check List

• Check and Maintenance

• Special Tools

 Mechanism

This section contains information on the structure and the function of the unit. Before you continue with the subsequent sections, make sure that you read this section.

Refer to the latest version of Workshop Manual (Code No. 9Y021-01870 / 9Y021-18200) for the diesel engine / tractor mechanism that this workshop manual does not include.

 Servicing

This section primarily contains information below.

• Troubleshooting

• Servicing Specifications

• Tightening Torques

• Checking, Disassembling and Servicing All illustrations, photographs and specifications contained in this manual are of the newest

information available at the time of publication.

KUBOTA reserves the right to change all information at any time without notice.

September, 2014

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I INFORMATION

KiSC issued 09, 2014 A

Page 4

INFORMATION

KiSC issued 09, 2014 A

CONTENTS

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

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

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

4. TRAVELING SPEEDS....................................................................................................................I-8

5. DIMENSIONS.................................................................................................................................I-9

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SAFETY FIRST

DANGER

WARNING

CAUTION

IMPORTANT

NOTE

KiSC issued 09, 2014 A

INFORMATION

1. SAFETY FIRST

• This symbol, the industry's "Safe ty Alert Symbol", is used t hroughout this manual and o n labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully.

• It is essential that you read the instructions and safety regulations before you try to repair or use this unit.

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

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

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

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

• Gives helpful information.

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BEFORE YOU START SERVICE

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

• Clean the work area and machine.

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

• Lower the implement to the ground.

• Stop the engine, then remove the key.

• Disconnect the battery negative cable.

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

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START SAFELY

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

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

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

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

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INFORMATION

OPERATE SAFELY

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

• Put on applicable clothing and safety equipment.

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

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

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

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

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

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

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

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

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

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PREVENT A FIRE

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

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

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

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

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INFORMATION

KEEP A GOOD AIRFLOW IN THE WORK AREA

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

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DISCARD FLUIDS CORRECTLY

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

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PREVENT ACID BURNS

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

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PREPARE FOR EMERGENCIES

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

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

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INFORMATION

2. SAFETY DECALS

The following safety decals are installed on the machine. If a decal becomes damaged, illegible or is not

on the machine, replace it. The decal part number is listed in the parts list.

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INFORMATION

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INFORMATION

CARE OF DANGER, WARNING AND CAUTION LABELS

1. Keep danger, warning and caution labels clean and free from obstructing material.

2. Clean danger, warning and caution labels with soap and water, dry with a soft cloth.

3. Replace damaged or missing danger, warning and caution labels with new labels.

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

5. Mount new danger, warning and caution labels by applying on a clean dry surface and pressing any bubbles to outside edge.

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NOTE

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INFORMATION

3. SPECIFICATIONS

L2501

Model

PTO power* 15.3 kW (20.5 HP) 14.2 kW (19.0 HP)

Maker KUBOTA Model D1703-M-DI-E4 Type Indirect injection, Vertical, Water-cooled 4 cycle diesel Number of cylinders 3 Bore and stroke 87 × 92.4 mm (3.4 × 3.6 in.)

Engine

Capacities

Dimensions

Weight (with ROPS) 1100 kg (2425 lbs) 1180 kg (2601 lbs) 1190 kg (2623 lbs)

Traveling system

Hydraulic unit

PTO

Total displacement 1.647 L (100.47 cu.in.) Engine gross power* 18.5 kW (24.8 HP) Engine net power* 17.8 kW (23.9 HP) Rated revolution 36.7 rps (2200 min Low idling revolution 17.5 to 19.2 rps (1050 to 1150 min Maximum torque 95.2 N·m (9.71 kgf·m, 70.2 lbf·ft) Battery 12 V RC: 123 min., CCA: 490 A Fuel tank 38.0 L (10.0 U.S.gals, 8.4 Imp.gals) Engine crankcase (with filter) 5.7 L (6.0 U.S.qts, 5.0 Imp.qts) Engine coolant 6.0 L (6.3 U.S.qts, 5.3 Imp.qts)

Transmission case Overall length (without 3P) 2810 mm (110.6 in.) 2700 mm (106.3 in.)

Overall width (min. tread) 1400 mm (55.1 in.) Overall height (with ROPS) 2330 mm (91.7 in.) Overall height

(Top of steering wheel) Wheel base 1610 mm (63.3 in.) Min. ground clearance 345 mm (13.6 in.) 340 mm (13.4 in.)

Tread

Tires Indust.

(option) Clutch Dry type single stage

Steering Integral type power steering Transmission Gear shaft, 8 forward and 4 reverse Brake Wet disk type

Min. turning radius (with brake)

Hydraulic control system Position control Pump capacity (main) 20.9 L/min. (5.52 U.S.gals/min., 4.60 Imp.gals/min.) Pump capacity (PS) 12.7 L/min. (3.36 U.S.gals/min., 2.79 Imp.gals/min.) Three point hitch Category 1

Max. lift force

System pressure 15.2 MPa (155 kgf/cm

Rear PTO

PTO / Engine speed 540 / 1910 min

Front 1050 mm (41.3 in.) 1095 mm (43.1 in.) Rear 1115 mm (43.8 in.), 1195 mm (47.1 in.), 1290 mm (50.8 in.)

AG front 5-15 7-16 AG rear 11.2-24 Front N/A 27 × 8.50-15 Rear N/A 15-19.5 R4

At lift points 870 kg (1918 lbs) 24 in. behind

lift points

PTO shaft size

Type Transmission driven with overrunning Live-continuous running

(7.1 U.S.gals, 5.9 Imp.gals)

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

Manual Transmission HST

2WD 4WD 4WD

-1

(rpm))

-1

(rpm))

27.0 L (7.3 U.S.gals, 6.1 Imp.gals)

-1

27.5 L

1475 mm (58.1 in.)

630 kg (1389 lbs)

, 2205 psi)

SAE 1-3/8, 6-splines

(rpm) 540 / 2105 min-1 (rpm)

(6.2 U.S.gals, 5.2 Imp.gals)

Hydrostatic transmission,

23.5 L

3 range speed

• *Manufacturer's estimate The company reserve the right to change the specifications without notice.

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4. TRAVELING SPEEDS

 Manual Transmission Type

Model L2501

Tire size (Rear) 11.2-24

Shuttle shift

lever

Forward

Reverse Reverse

Range gear

shift lever

Low

High

Main gear shift

lever

11.4 0.9

21.8 1.1

32.6 1.8

44.5 2.8

15.3 3.3

26.9 4.3

310.0 6.2

417.3 10.7

11.9 1.2

22.5 1.8

33.6 2.3

46.2 3.9

INFORMATION

(At rated engine rpm)

km/h mph

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

 HST Type

Model L2501

Tire size (Rear) 11.2-24

Range gear shift lever km/h mph

L5.7 3.5

Forward

Reverse

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

M9.9 6.2 H 18.5 11.5

L5.2 3.2 M8.9 5.5 H 16.6 10.3

(At rated engine rpm)

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5. DIMENSIONS

INFORMATION

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G GENERAL

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Page 15

GENERAL

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CONTENTS

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

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

[2] E4B ENGINE................................... ... ... .... ... ... ... .......................................... .... ...................... G-2

[3] CYLINDER NUMBER............................................................................................................. G-2

2. GENERAL PRECAUTIONS.......................................................................................................... G-3

3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING .................................... G-4

[1] WIRING .................................................................................................................................. G-4

[2] BATTERY............................................................................................................................... G-6

[3] FUSE...................................................................................................................................... G-6

[4] CONNECTOR ........................................................................................................................ G-6

[5] CIRCUIT TESTER.................................................................................................................. G-7

[6] COLOR OF WIRING ..............................................................................................................G-8

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

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

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

[2] STUD BOLTS....................................................................................................................... G-11

[3] METRIC SCREWS, BOLTS AND NUTS.............................................................................. G-12

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

THREADS ............................................................................................................................ G-12

[5] PLUGS ................................................................................................................................. G-12

6. MAINTENANCE CHECK LIST ................................. .... .......................................... ... ... ... ... .... ... . G-13

7. CHECK AND MAINTENANCE ................................................................................................... G-15

[1] DAILY CHECK...................................................................................................................... G-15

[2] CHECK POINTS OF INITIAL 50 HOURS ............................................................................ G-16

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

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

[5] CHECK POINTS OF EVERY 200 HOURS .......................................................................... G-26

[6] CHECK POINTS OF EVERY 400 HOURS .......................................................................... G-28

[7] CHECK POINT OF EVERY 600 HOURS............................................................................. G-30

[8] CHECK POINT OF EVERY 800 HOURS............................................................................. G-30

[9] CHECK POINT OF EVERY 1500 HOURS........................................................................... G-30

[10]CHECK POINT OF EVERY 3000 HOURS........................................................................... G-31

[11]CHECK POINT OF EVERY 1 YEAR.................................................................................... G-31

[12]CHECK POINTS OF EVERY 2 YEARS ............................................................................... G-31

. G-34

[13]OTHERS.......................................................................................................................

8. SPECIAL TOOLS ....................................................................................................................... G-37

[1] SPECIAL TOOLS FOR ENGINE.......................................................................................... G-37

[2] SPECIAL TOOLS FOR TRACTOR ...................................................................................... G-45

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

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

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

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

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

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

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

.......

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1. TRACTOR IDENTIFICATION

[1] MODEL NAME AND SERIAL NUMBERS

When contacting your local KUBOTA distributor, always specify

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

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

GENERAL

(4) ROPS Identification Plate

(ROPS Serial Number)

(5) Hour Meter

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GENERAL

[2] E4B ENGINE

[Example: Engine Model Name V2403-CR-TE4]

The emission controls previously implemented in various countries to prevent air pollution will be stepped up as Nonroad Emission Standards continue to change. The timing or applicable date of the specific Nonroad 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 Nonroad Emission regulations. For KUBOTA Engines, E4B will be the designation that identifies engine models affected by the next emission phase (See the table below).

When servicing or repairing ###-E4B series engines, use only replacement parts for that specific E4B engine, designated by the appropriate E4B KUBOTA Parts List and perform all maintenance services listed in the appro priate KUBOTA Operator's Manual or in the appropriate E4B KUBOTA Workshop Manual. Use of incorrect replacement parts or replacement parts from othe r emission level engines (for example: E3B engines), may result in emission levels out of compliance with the original E4B design and EPA or other applicable regulations.Please refer to the emission label located on the engin e head cover to identify Output classification and Emission Control Information. E4B engines are identified with "EF" at the end of the Model designation, on the US EPA label. Please note: E4B is not marked on the engine.

Category (1) Engine output classification EU regulation

K From 19 to 37 kW STAGE IIIB P From 37 to less than 56 kW STAGE IIIB N From 56 to less than 75 kW STAGE IIIB M From 75 to less than 130 kW STAGE IIIB

[3] CYLINDER NUMBER

Category (2) Engine output classification EPA regulation

Less than 19 kW Tier 4

(1) EU regulation engine output classification category (2) "E4B" engines are identified with "EF" at the end of the Model designation, on

the US EPA label. "E4B" designates 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 Interim Tier 4 From 75 to less than 130 kW Interim Tier 4

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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, and

No. 3 starting from the gear case side.

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2. GENERAL PRECAUTIONS

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

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

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

• Remove oil and dirt from parts before you measure.

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

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

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

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

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

• Clean the parts before you measure them.

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

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

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

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

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

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

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

GENERAL

(A) External Circlip (B) Internal Circlip

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IMPORTANT

KiSC issued 09, 2014 A

GENERAL

3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING

To ensure safety and prevent damage to the machine and surrounding equipment, obey the following precautions in handling electrical parts and wiring.

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

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

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

(1) Negative Terminal (2) Positive Terminal

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[1] WIRING

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

(1) Cover

(Securely Install Cover)

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• Securely tighten wiring terminals.

(1) Correct

(Securely Tighten)

(2) Incorrect

(Loosening Leads to Faulty Contact)

• Do not let wiring contact dangerous part.

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

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

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• Repair or change torn or aged wiring immediately.

(1) Aged (2) Torn

(3) Insulating Vinyl Tape

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• Securely insert grommet.

(1) Grommet (A) Correct

(B) Incorrect

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• Securely clamp, being careful not to damage wiring.

(1) Clamp

(Wind Clamp Spirally)

(2) Wire Harness

(3) Clamp (4) Welding Dent

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GENERAL

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

(1) Wiring (2) Clamp

(A) Correct (B) Incorrect

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

(1) Wiring (A) Incorrect

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DANGER

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[2] BATTERY

GENERAL

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

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

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

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

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

To avoid serious injury or death:

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

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

• Before you recharge, remove cell caps.

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

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[3] FUSE

[4] CONNECTOR

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

• Never use steel nor copper wire in place of fuse.

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

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

(1) Fuse (2) Fusible Link

(3) Slow Blow Fuse

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• For connector with lock, push lock to separate.

(A) Push

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• In separating connectors, do not pull wire harnesses.

• Hold connector bodies to separate.

(A) Correct (B) Incorrect

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GENERAL

• Use sandpaper to remove rust from terminals.

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

(1) Exposed Terminal (2) Deformed Terminal

(3) Sandpaper (4) Rust

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

(A) Correct (B) Incorrect

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

(1) Cover (A) Correct

(B) Incorrect

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[5] CIRCUIT TESTER

• Use tester correctly following manual provided with tester.

• Check for polarity and range.

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[6] COLOR OF WIRING

GENERAL

• Colors of wire are specified to the color codes.

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

(An example)

Red stripe on white color: W/R

Color of wiring Color code

Black B Brown Br Green G

Gray Gy or Gr Blue L

Light Green Lg

Orange Or

Pink P

Purple Pu or V

Red R

Sky Blue Sb

White W Yellow Y

(1) Wire Color (2) Stripe

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NOTE

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4. LUBRICANTS, FUEL AND COOLANT

GENERAL

No. Place

1Fuel

2 Coolant

Engine crankcase

(with filter)

Transmission case

Transmission

case

Transmission case

5 Front axle case (4WD)

Manual Transmission, 2WD

Manual Transmission, 4WD

HST, 4WD

Capacity

L2501

38.0 L

10.0 U.S.gals

8.4 Imp.gals

6.0 L

6.3 U.S.qts

5.3 Imp.qts

5.7 L

6.0 U.S.qts

5.0 Imp.qts

27.0 L

7.1 U.S.gals

5.9 Imp.gals

27.5 L

7.3 U.S.gals

6.1 Imp.gals

23.5 L

6.2 U.S.gals

5.2 Imp.gals

4.5 L

4.8 U.S.qts

4.0 Imp.qts

Lubricants, fuel and coolant

• No. 2-D diesel fuel

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

Fresh clean water with anti-freeze

Engine oil: Refer to next page.

• Above 25 °C (77 °F) SAE30, 10W-30 or 15W-40

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

•Below −10 °C (14 °F) SAE10W-30

KUBOTA SUPER UDT-2 fluid

KUBOTA SUPER UDT-2 fluid or SAE80-90 gear oil

Greasing

No. Place No. of greasing point Capacity Type of grease

Front wheel hub (2WD) 2 A small amount Bearing grease Knuckle shaft (2WD) 2 Front axle support

(4WD) Clutch pedal 1

Brake pedal 1 Pedal shaft 1 Battery terminal 2 Lift rod 1 Tie-rod end (4WD) 4

• The product name of KUBOTA genuine UDT fluid may be different from that in the Operator's Manual depending on countries or territories.

Multipurpose type grease

Until grease overflows

NLGI-2 or NLGI-1 (GC-LB)

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GENERAL

Engine Oil

• Oil used in the engine should have an American Petroleum Institute (API) service classification and Proper SAE Engine Oil according to the ambient temperatures as shown above:

• Refer to the following table for the suitable API classification engine oil according to the engine type (with internal EGR, external EGR or non-EGR) and the fuel.

Fuel used

Engine oil classification (API classification)

Oil class of engines except external EGR Oil class of engines with external EGR

Ultra Low Sulfur Fuel [< 0.0015 % (15 ppm)]

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)

EGR: Exhaust Gas Re-circulation

• The CJ-4 engine oil is intended for DPF (Diesel Particulate Filter) type engines, and cannot be used on this machine.

except external EGR with external EGR

Models L2501 —

Fuel

• Cetane number of 45 minimum. Cetane number greater than 50 is preferred, especially for temperatures below −20 °C (−4 °F) or elevations above 1500 m (5000 ft).

• 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 he avy mobile ser vice. (SAE J31 3 JUN87)

Transmission Oil

• KUBOTA Super UDT-2: For an enhanced ownership experience, we highly recommend Super UDT-2 to be used instead of standard hydraulic/transmission fluid. Super UDT-2 is a proprietary KUBOTA formulation that deliveries superior performance and protection in all operating conditions. Regular UDT is also permitted for use in this machine.

 Indicated capacities of water and oil are manufacturer's estimate.

9Y1211121GEG0005US0

G-10

Page 26

L2501, WSM

KiSC issued 09, 2014 A

GENERAL

5. TIGHTENING TORQUES

[1] GENERAL USE SCREWS, BOLTS AND NUTS

Tighten screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual

according to the table below.

Indication on top of bolt

Indication on top of nut

Material of opponent part Ordinariness Aluminum Ordinariness Aluminum Ordinariness

Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft

7.9

0.80

M10

M12

M14

M16

M18

M20

9.3 18

20 40

45 63

108

125 167

191 246

284 334

392

0.95

1.8 to

2.1

4.0 to

4.6

6.4 to

7.4

11.0 to

12.8

17.0 to

19.5

25.0 to

29.0

34.0 to

40.0

No-grade or 4T 7T 9T

No-grade or 4T

5.8

7.9

0.80

5.8

9.81

1.00

7.24

7.9

0.80

5.8

12.3

6.8

8.8

0.90

6.5

1.7

19 32

to 53–––

79.6 to

–––

92.5

–––

141 181

–––

209 246

–––

289

2.0

3.2 to

3.5

14 24

11.2 24

27 48

55 78

124

147 197

225 275

318 368

431

1.15

2.4 to

2.8

4.9 to

5.7

7.9 to

9.2

12.6 to

15.0

20.0 to

23.0

28.0 to

32.5

37.5 to

44.0

8.31 18

20 36

41 58

91.2

108 145

166 203

235 272

318

8.8

0.90

1.8

2.1

4.0 to

4.5

6.4 to

7.4

44 63

–––

6.5

14.2

103

117

196 260

304 344

402 491

568

WSM000001GEG0001US0

1.25 to

1.45

3.0 to

3.5

6.2 to

7.2

10.5 to

12.0

17.0 to

20.0

26.5 to

31.0

35.0 to

41.0

50.0 to

58.0

9.05 to

10.4

25 45

76.0 to

86.7

123

144 192

224 254

296 362

419

[2] STUD BOLTS

Material of opponent part Ordinariness Aluminum

Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft

1.2

8.7

8.9

M10

M12

M14

M16

M18

15 25

31 30

49 62

98.1 to

112 172

201

1.6

2.5

3.2

3.0

to 3631 3.2 23

5.0

6.3

to 54–––

7.5

10.0

72.4

11.5

83.1

17.5

127

20.5

148

0.90

1.2

2.0

2.6

–––

G-11

6.5 to

8.6

WSM000001GEG0002US0

Page 27

L2501, WSM

KiSC issued 09, 2014 A

[3] METRIC SCREWS, BOLTS AND NUTS

GENERAL

Grade

Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft

M8 24 to 27 2.4 to 2.8 18 to 20 30 to 34 3.0 to 3.5 22 to 25 M10 48 to 55 4.9 to 5.7 36 to 41 61 to 70 6.2 to 7.2 45 to 52 M12 78 to 90 7.9 to 9.2 58 to 66 103 to 117 10.5 to 12.0 76.0 to 86.7 M14 124 to 147 12.6 to 15.0 91.2 to 108 167 to 196 17.0 to 20.0 123 to 144 M16 197 to 225 20.0 to 23.0 145 to 166 260 to 304 26.5 to 31.0 192 to 224

Property class 8.8 Property class 10.9

WSM000001GEG0003US0

[4] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH

UNC OR UNF THREADS

Grade

Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft

1/4 11.7 to 15.7 1.20 to 1.60 8.63 to 11.5 16.3 to 19.7 1.67 to 2.00 12.0 to 14.6 5/16 23.1 to 27.7 2.36 to 2.82 17.0 to 20.5 33 to 39 3.4 to 3.9 25 to 28

3/8 48 to 56 4.9 to 5.7 36 to 41 61 to 73 6.3 to 7.4 45 to 53

1/2 110 to 130 11.3 to 13.2 81.2 to 95.8 150 to 178 15.3 to 18.1 111 to 131 9/16 150 to 178 15.3 to 18.1 111 to 131 217 to 260 22.2 to 26.5 160 to 191

5/8 204 to 244 20.8 to 24.8 151 to 179 299 to 357 30.5 to 36.4 221 to 263

SAE GR.5 SAE GR.8

WSM000001GEG0008US0

[5] PLUGS

Material of opponent part

Shape Size

N·m kgf·m lbf·ft N·m kgf·m lbf·ft

Tapered screw

Straight screw G1/4 25 to 34 2.5 to 3.5 18 to 25 – – –

R1/8 13 to 21 1.3 to 2.2 9.4 to 15 13 to 19 1.3 to 2.0 9.4 to 14 R1/4 25 to 44 2.5 to 4.5 18 to 32 25 to 34 2.5 to 3.5 18 to 25 R3/8 49 to 88 5.0 to 9.0 37 to 65 49 to 58 5.0 to 6.0 37 to 43 R1/2 58.9 to 107 6.00 to 11.0 43.4 to 79.5 59 to 78 6.0 to 8.0 44 to 57

G3/8 62 to 82 6.3 to 8.4 46 to 60 – – – G1/2 49 to 88 5.0 to 9.0 37 to 65 – – –

Ordinariness Aluminum

WSM000001GEG0005US0

G-12

Page 28

L2501, WSM

KiSC issued 09, 2014 A

6. MAINTENANCE CHECK LIST

GENERAL

Service Interval

No. Item

1 Greasing – 

2 Engine start system Check 

3 Wheel bolt torque Check 

4 Battery condition Check 

5 Fan belt Adjust 

6 Clutch Adjust 

7 Brake Adjust 

Clean 

8 Air cleaner element

Replace

Clean 

9 Fuel filter element

Replace 

Check 

10 Fuel line

Replace

11 Engine oil Change 

12 Engine oil filter Replace 

13 Transmission oil filter (HST) Replace 

14 Toe-in Adjust 

Check

15 Radiator hose and clamp

eplace

Check 

16 Power steering oil line

Replace

Check 

17 Intake air line

Replace

Check 

18 Oil cooler line (HST)

Replace

19 Hydraulic oil filter Replace 

20 Transmission fluid Change 

21 Front axle case oil (4WD) Change 

22 Greasing (2WD front wheel hub) – 

23 Front axle pivot Adjust 

50 100 150 200 250 300 350 400 450 500 550 600 650 700



After

since

every 50 Hr

every

100 Hr

every

100 Hr

every

100 Hr

every

100 Hr

every

100 Hr

every 1

year

every

100 Hr

every

400 Hr

every

100 Hr

every 2

years every

200 Hr

every

200 Hr

every

200 Hr

every

200 Hr

ever

200 Hr

every 2

years every

200 Hr

every 2

years every

200 Hr

every 2

years every

200 Hr

every 2

years every

400 Hr

every

400 Hr

every

400 Hr

every

400 Hr

every

600 Hr

Refer-

ence page

G-19

G-20,

G-21 G-21

G-22 *4

G-24

G-16

G-24

G-25 *1

G-25 *2

G-25

G-26

G-16

G-17

G-26

G-27

G-18

G-28,

G-29 G-30

G-30

G-13

Page 29

L2501, WSM

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

Service Interval

No. Item

24 Engine valve clearance Adjust

Fuel injection nozzle injection

pressure

26 Injection pump Check

27 Cooling system Flush

28 Coolant Change 29 Fuel system Bleed

30 Clutch housing water Drain G-34 31 Fuse Replace G-35 32 Head lamp / Light bulb Replace G-36

Check

50 100 150 200 250 300 350 400 450 500 550 600 650 700

800 Hr

1500 Hr

3000 Hr

every 2

Service

quired

After since

every

years

as re-

Refer-

ence page

G-30

G-30 @

G-31 @

G-31

G-31 G-34

• The jobs indicated by  must be done after the firs t 50 hours of operation. *1 Air cleaner should be cleaned more often in dusty conditions than in normal conditions. *2 Every year or every 6 times of cleaning. *3 Replace only if necessary. *4 When the battery is used for less than 100 hours per year, check the battery condition by reading the indicator annually.

• The items listed above (@ marked) are registered as emission related critical parts by KUBOTA in the U.S.EPA nonroad emission regulation. As the engine owner, you are responsible for the performance of the required maintenance on the engine according to the above instruction. Please see Warranty Statement in detail.

9Y1211121GEG0007US0

G-14

Page 30

L2501, WSM

WARNING

KiSC issued 09, 2014 A

GENERAL

7. CHECK AND MAINTENANCE

To avoid personal injury or death:

• Be sure to check and service the tractor on a le vel surface with the en gine shut off and t he parking brake "ON" and implement lowered to the ground.

9Y1211121GEG0008US0

[1] DAILY CHECK

To prevent trouble from occurring, it is important to know the condition of the tractor. Check the following items

before starting.

9Y1211121GEG0009US0

Checking

• Check areas where previous trouble was experienced.

• Walk around the tractor.

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

2. Check for oil and water leaks.

3. Check the engine oil level.

4. Check the transmission fluid level.

5. Check the coolant level.

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

7. Check and clean the radiator screen and grille.

8. Check the nuts of the tires are tight.

9. Check the number plate or SMV emblem for damage and cleaner replace as necessary if equipped.

10. Care of danger, warning and caution labels.

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

• While sitting in the operator's seat.

1. Check the HST pedal, brake pedals and clutch pedal.

2. Check the parking brake.

3. Check the steering wheel.

• Turning the key switch.

1. Check the performance of the Easy Checker™ lights.

2. Check the head lights, tail lights and hazard lights. Clean if necessary.

3. Check the performance of the meters and gauges.

• Starting the engine.

1. Check to see that the lights on the Easy Checker™ go off.

2. Check the color of the exhaust gas.

3. Check the brakes for proper operation.

9Y1211121GEG0010US0

G-15

Page 31

L2501, WSM

WARNING

IMPORTANT

KiSC issued 09, 2014 A

[2] CHECK POINTS OF INITIAL 50 HOURS

Adjusting Clutch Pedal

1. Stop the engine and remove the key.

2. Slightly depress the clutch pedal and measure free travel at top of pedal stroke.

3. If adjustment is needed, loosen the lock nut (1), and turn the clutch rod (2) to adjust the rod length within acceptable limits.

4. Retighten the lock nut.

Clutch pedal free travel Factory specification

(1) Lock Nut (2) Clutch Rod

Changing Engine Oil

To avoid personal injury or death:

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

• Allow engine to cool down sufficiently, oil can be not and can burn.

1. To drain the used oil, remove the drain plug (1) at the bottom of the engine and drain the oil completely into the oil pan. All the used oil can be drained out ea sily when the engine is still warm.

2. After draining reinstall the drain plug (1).

3. Fill with the new oil up to the upper notch on the dipstick (3). (See page G-9.)

Engine oil capacity

GENERAL

20 to 30 mm

0.8 to 1.2 in.

9Y1211121GEG0011US0

5.7 L

6.0 U.S.qts

5.0 Imp.qts

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

A: Proper Oil Level

9Y1211121GEG0012US0

Replacing Engine Oil Filter

To avoid personal injury or death:

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

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

1. Remove the oil filter.

2. Put a film of clean engine oil on the rubber seal of th e new filter.

3. Tighten the filter quickly until it contacts the mounting surface. Tighten filter by hand an additional 1/2 turn only.

4. After the new filter has been replaced, the engine oil normally decreases a little. Make sure that the engine oil does not leak through the seal and be sure to check the oil level on the dipstick. Then, fill the engine oil up to the prescribed level.

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

(1) Engine Oil Filter Cartridge

9Y1211121GEG0013US0

G-16

Page 32

L2501, WSM

WARNING

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

Replacing Transmission Oil Filter [HST Type]

To avoid personal injury or death:

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

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

1. Place the oil pan underneath the transmission oil filter and remove the filter. Do not remove the hydraulic oil filter. Otherwise, the oil comes out.

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

3. Quickly tighten the filter until it contacts the mounting surface, then, with a filter wrench, tighten it an additiona l 1 turn only.

4. After the new filter has been replaced, fill with the transmission oil up to the upper line of the gauge (2).

5. After running the engine for a few minutes, stop the engine and check the oil level again, add oil to the prescribed level.

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

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

• Do not operate the tractor immediately after changing the transmission fluid. Run the engine at medium speed for a few minutes to prevent damage to the transmission.

(1) Drain Plug (2) Gauge (3) Oil Inlet (4) Transmission Oil Filter

A: Oil level is acceptable within this

range.

9Y1211121GEG0014US0

G-17

Page 33

L2501, WSM

WARNING

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

Replacing Hydraulic Oil Filter

To avoid personal injury or death:

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

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

1. Remove the drain plugs (1) at the bottom of the transmission case and drain the oil completely into the oil pan.

2. After draining reinstall the drain plugs.

3. Remove the oil filter (4).

4. Wipe off meter fillings from the magnetic filter with a clean rag.

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

6. Quickly tighten the filter until it contacts the mounting surface, then tighten it by hand an additional 1/2 turn only.

7. After the new filter has been replaced, fill with oil up to the upper line of the gauge (2).

8. After running the engine for a few minutes, stop the engine and check the oil level again, add oil to the prescribed level.

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

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

• Do not operate the tractor immediately after changing the transmission fluid. Run the engine at medium speed for a few minutes to prevent damage to the transmission.

(1) Drain Plug (2) Gauge (3) Oil Inlet (4) Hydraulic Oil Filter

A: Oil level is acceptable within this

range. [A] 2WD [B] 4WD [C] Manual Transmission Type [D] HST Type

9Y1211121GEG0015US0

G-18

Page 34

L2501, WSM

NOTE

KiSC issued 09, 2014 A

[3] CHECK POINTS OF EVERY 50 HOURS

Greasing

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

• Apply a small amount of multipurpose grease to the following points every 50 hours. If you operated the machine in extremely wet and muddy conditions, lubricate grease fittings more often.

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

GENERAL

(1) Grease Fitting

(Knuckle Shaft R.H., L.H.)

(2) Grease Fitting

(Front Axle Support) (3) Pedal Shaft (4) Battery Terminals

(5) Grease Fitting (Tie-rod End) (6) Lifting Rod (R.H.)

[A] 2WD [B] 4WD

9Y1211121GEG0016US0

G-19

Page 35

L2501, WSM

WARNING

KiSC issued 09, 2014 A

GENERAL

Checking Engine Start System [Manual Transmission Type]

To avoid personal injury or death:

• Do not allow anyone near the tractor while testin g.

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

 Preparation before testing

1. Place all control levers in the "NEUTRAL" position.

2. Set the parking brake and stop the engine.

 Test: Switch for the range gear shift lever

1. Sit on the operator's seat.

2. Shift the range gear shift lever to "L", "H" or "R" position.

3. Depress the clutch pedal fully.

4. Disengage the PTO gear shift lever.

5. Turn the key to "START" position.

6. The engine must not crank.

 Test: Switch for the PTO gear shift lever

1. Sit on the operator's seat.

2. Engage the PTO gear shift lever.

3. Depress the clutch pedal fully.

4. Shift the range gear shift lever to "NEUTRAL" position.

5. Turn the key to "START" position.

6. The engine must not crank.

 Test: Switch for the operator's seat

1. Sit on operator's seat.

2. Start the engine.

3. Engage the PTO gear shift lever.

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

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

(1) Clutch Pedal (2) Range Gear Shift Lever

(Shuttle Shift Lever)

(3) PTO Gear Shift Lever

9Y1211121GEG0017US0

G-20

Page 36

L2501, WSM

CAUTION

WARNING

KiSC issued 09, 2014 A

GENERAL

Checking Engine Start System [HST Type]

To avoid personal injury:

• Do not allow anyone near the tractor while testing.

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

 Test: Switch for the speed control pedal

1. Sit on the operator's seat.

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

3. Depress the clutch pedal fully.

4. Disengage the PTO gear shift lever.

5. Turn the key to "START" position.

6. The engine must not crank.

 Test: Switch for the PTO gear shift lever

1. Sit on the operator's seat.

2. Engage the PTO gear shift lever.

3. Depress the clutch pedal fully.

4. Place the speed control pedal in "NEUTRAL" position.

5. Turn the key to "START" position.

6. The engine must not crank.

 Test: Switch for the operator's seat

1. Sit on the operator's seat.

2. Start the engine.

3. Engage the PTO gear shift lever.

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

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

 Test: Switch for the clutch pedal

1. Sit on the operator's seat.

2. Disengage the PTO gear shift lever.

3. Place the speed control pedal in "NEUTRAL" position.

4. Release the clutch pedal.

5. Turn the key to "START" position.

6. The engine must not crank.

(1) Clutch Pedal (2) Speed Control Pedal

(3) PTO Gear Shift Lever

9Y1211121GEG0018US0

Checking Wheel Bolt Torque

To avoid personal injury or death:

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

• Any time bolts and nuts are loosened, retighten to specified torque.

• Check all bolts and nuts frequently and keep them tight.

1. Check the wheel bolts and nuts reg ularly especi ally when ne w. If there are loosened, tighten as follows.

137 N·m

Front wheel bolt and nut

Tightening torque

Rear wheel bolt and nuts

(1) Front Wheel Mounting Screw and

Nut

(2) Rear Wheel Mounting Screws and

14.0 kgf·m 100 lbf·ft

215 N·m

22.0 kgf·m 160 lbf·ft

Nuts

9Y1211121GEG0019US0

G-21

Page 37

L2501, WSM

DANGER

WARNING

NOTE

KiSC issued 09, 2014 A

[4] CHECK POINTS OF EVERY 100 HOURS

Checking Battery Condition

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

• Do not use or charge the refillable type battery if the fluid level is below the LOWER (lower limit level) mark. Otherwise, the battery component parts may prematurely deteriorate, which may shorten the battery's service life or cause an explosion. Check the fluid level regularly and add distilled water as required so that the fluid level is between the UPPER and LOWER levels.

To avoid personal injury or death:

• Never remove the battery cap while the engine is running.

• Keep electrolyte away from eyes, hands and clothes. If you are spattered with it, wash it away completely with water immediately and get medical attention.

• Keep open sparks and flames away from the battery at all times. Hydrogen gas mixed with oxygen becomes very explosive.

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

GENERAL

• The factory-installed battery is of non-refillable type. If the indicator turns white, do not charge the battery but replace it with new one.

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

2. The original battery is maintenance free type battery, but need some servicing.

3. If the battery is weak, the engine is difficult to start and the lights be dim. It is important to check the battery periodically.

4. Check the battery condition by reading the indicator display.

State of indicator display

Green Black Needs charging battery.

White Needs changing battery.

Specific gravity of electrolyte and quality of electrolyte are both in good condition.

5. Be sure to wire the battery cable as shown in th e figu r e.

6. Fix the positive cable in the cord band.

7. TIghten the terminal until the stopper comes in contact.

(1) Battery (2) Indicator (3) Negative Cable (4) Positive Cable

(5) Clip (6) Terminal (7) Stopper

9Y1211121GEG0020US0

G-22

Page 38

L2501, WSM

WARNING

KiSC issued 09, 2014 A

GENERAL

Battery Charging

To avoid personal injury or death:

• 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, ensure the vent caps are securely in place (if equipped).

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

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

1. To slow charge the battery, connect the battery positive terminal to the charger positive terminal and the negative to the negative, then recharge in the standard fashion.

2. A boost charge is only for emergencies. It will partially charge the battery at a high rate and in a short time. When using a boost-charged battery, it is necessary to recharge the battery as early as possible. Failure to do this will shorten the battery's service life.

3. The battery is charged if the indicator displa y turns green from black.

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

Table 1

Reserve

Battery type Volts

75D26R 12 123 490 6.5

capacity

(min)

CCA (SAE)

Normal

Charging

Rate

CCA: Cold Cranking Ampere

 Direction for Storage

1. When storing the tractor for long periods of time, remove the battery from tractor, adjust the electrolyte to the proper leve l and store in a dry place out of direct sunlight.

2. The battery self-dischar ges while it is stored. Recharge it once every three months in hot seasons and once every six months in cold seasons.

(1) Battery

9Y1211121GEG0021US0

G-23

Page 39

L2501, WSM

WARNING

NOTE

KiSC issued 09, 2014 A

GENERAL

Adjusting Fan Belt Tension

To avoid personal injury or death:

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

1. Stop the engine and remove the key.

2. Apply moderate thumb pressure to belt between pulleys.

3. If tension is incorrect, loosen the alternator mounting bolts (1), and using a lever placed between the alternator and the engine block, pull the alternator out until the deflection of the belt falls within the factory specifications.

4. Replace fan belt if it is damaged.

A deflection of between

7.0 to 9.0 mm (0.28 to

Fan belt tension Factory specification

(1) Alternator Mounting Bolt (A) Check the Belt Tension

(B) To Tighten the Fan Belt

0.35 in.) when the belt is pressed (98 N, 10kgf, 22 lbf) in the middle of the span.

9Y1211121GEG0022US0

Adjusting Clutch Pedal Free Travel

1. See page G-16.

9Y1211121GEG0023US0

Adjusting Brake Pedal

To avoid personal injury or death:

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

1. Release the parking brake.

2. Slightly depress the brake pedals and measure free travel at top of pedal stroke.

3. If adjustment is needed, loosen the lock nut (1) and turn the brake rod (2) to adjust the rod length within ac cep ta b le limits.

4. Retighten the lock nut.

• Be sure to keep the free travel in the right and left brake pedals equal.

Brake pedal free travel Factory specification

(1) Lock Nut (2) Brake Rod

A: Free Travel

15 to 20 mm

0.6 to 0.8 in.

9Y1211121GEG0024US0

G-24

Page 40

L2501, WSM

NOTE

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

Cleaning Air Cleaner Element

1. Remove the element.

2. Clean the element: – When dry dust adheres to the element, blow compressed air

from the inside, turning the element. Pressure of compressed air must be under 205 kPa (2.1 kgf/cm 30 psi).

– When carbon or oil adheres to the element, soak the

element in detergent for 15 minutes then wash it several times in water, rinse with clean water and dry it naturally. After element is fully dried, inspect inside of the element with a light and check if it is damaged or not. (Referring to the instructions on the label attached to the case.)

3. Replace the air cleaner element (1): Once a yearly or after every sixth times of cleaning, whichever comes first.

• Check to see if the evacuator valve (3) is blocked with dust.

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

• Do not run the engine with filter eleme n t re mo ve d.

• Be sure to refit the dust cup with the arrow ↑ (on the rear) upright. If the dust cup is improperly fitted, dus t pas ses by the baffle and directly adheres to the element.

 Evacuator Valve

Open the evacuator valve (3) once a week under ordinary

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

(1) Air Cleaner Element (2) Cover

(3) Evacuator Valve

9Y1211121GEG0025US0

Cleaning Fuel Filter Element

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

1. Loosen and remove the filter bowl, and rinse the inside with kerosene.

2. Take out the element and dip it in the kerosene to rinse.

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

4. Bleed the fuel system. (See page G-34.)

• When the fuel filter bowl has been removed, fuel stops flowing from the fuel tank. If the fuel tank is almost full, however, the fuel will flow back from the fuel return p ipe to the fuel filter. Before checking, make sure the fuel tank is less than half-full.

• If dust, dirt or water enters the fuel system, the fuel pump and injection nozzles are subject to premature wear. To prevent this, be sure to clean the fuel filter bowl and element periodically.

(1) Fuel Filter Bowl (2) O-ring (3) Filter Element (4) O-ring (5) Body (Built-in Fuel Check Valve)

A: Loosen B: Tighten

9Y1211121GEG0026US0

G-25

Page 41

L2501, WSM

NOTE

IMPORTANT

KiSC issued 09, 2014 A

Checking Fuel Line

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

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

• If the fuel line is removed, be sure to propert y bleed the fuel system.

• Refer to "Bleeding Fuel System". (See page G-34.)

(1) Fuel Line (2) Clamp Band

[5] CHECK POINTS OF EVERY 200 HOURS

Changing Engine Oil

1. See page G-16.

Replacing Engine Oil Filter

1. See page G-16.

Replacing Transmission Oil Filter [HST Type]

1. See page G-17.

Adjusting Toe-in

1. Park the tractor on the flat place.

2. Inflate the tires to the specified pressure.

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

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

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

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

7. Front distance should be 2 to 8 mm (0.08 to 0.3 in.) less than rear distance.

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

Toe-in ((B) - (A)) Factory specification

GENERAL

9Y1211121GEG0027US0

9Y1211121GEG0028US0

9Y1211121GEG0029US0

9Y1211121GEG0030US0

2 to 8 mm

0.08 to 0.3 in.

 Adjusting

1. Loosen the lock nut (1) and turn the turnbuckle (2) to adjust th e tie-rod length until the proper toe-in measurement is obtained.

2. Retighten the tie-rod lock nut (1).

Tightening torque Tie-rod lock nut

167 to 196 N·m

17.0 to 20.0 kgf·m 123 to 144 lbf·ft

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

(1) Lock Nut (2) Turnbuckle (3) Tie-rod

(A) Wheel to Wheel Distance at front (B) Wheel to Wheel Distance at rear (C) Front (D) 2WD (E) 4WD

9Y1211121GEG0031US0

G-26

Page 42

L2501, WSM

KiSC issued 09, 2014 A

GENERAL

Checking Radiator Hose and Hose Clamp

Check to see if radiator hoses are properly fixed every 200

hours of operation or six months, whichever comes first.

1. If hose clamps (2) are loose or water leaks, tighten hose clamps (2) securely.

2. Replace hoses (1) and tighten hose clamps (2) securely, if radiator hoses (1) are swollen, hardened or cracked. Replace hoses and hose clamps every 2 years or earlier if checked and found that hoses are swollen, hardened or cracked.

 Precautio n at Overheating

Take the following actions in the event the coolant temperature

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

1. Stop the machine operation in a safe place and keep the en gine unloaded idling.

2. Do not stop the engine suddenly, but stop it after about 5 minutes of unloaded idling.

3. Keep yourself well away from the machine for further 10 minutes or while the steam blown out.

4. Check that there gets no dangers such as burn. Get rid of the causes of overheating, and then start again the engine.

(1) Radiator Hose (2) Clamp

9Y1211121GEG0032US0

Checking Power Steering Oil Line [Manual Transmission Type] / Checking HST Oil Cooler Line [HST Type]

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

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

(1) Power Steering Pressure Hose (2) HST Oil Cooler Line

[A] Manual Transmission Type [B] HST Type

9Y1211121GEG0033US0

Checking Intake Air Line

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

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

(1) Hose (2) Hose Clamp

9Y1211121GEG0034US0

G-27

Page 43

L2501, WSM

WARNING

IMPORTANT

KiSC issued 09, 2014 A

[6] CHECK POINTS OF EVERY 400 HOURS

Replacing Hydraulic Oil Filter

1. See page G-18.

Changing Transmission Fluid [Manual Transmission Type]

To avoid personal injury or death:

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

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

1. Place an oil pan underneath the transmission case.

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

3. Drain the transmission fluid.

4. After draining, screw in the drain plugs (1).

5. Fill with new oil up to the upper line of the gauge (2).

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

• Use only multi-grade transmission fluid. Use of other fluids may damage the transmission or hydraulic system.

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

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

• Do not mix different brands oil together.

2WD

Transmission fluid capacity

4WD

GENERAL

9Y1211121GEG0035US0

27.0 L

7.1 U.S.gals

5.9 Imp.gals

27.5 L

7.3 U.S.gals

6.1 Imp.gals

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

G-28

A: Oil level is acceptable within this

range. [A] 2WD [B] 4WD

9Y1211121GEG0036US0

Page 44

L2501, WSM

WARNING

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

Changing Transmission Fluid [HST Type]

To avoid personal injury or death:

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

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

1. Place an oil pan underneath the transmission case.

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

3. Drain the transmission fluid.

4. After draining, screw in the drain plug s (1 ).

5. Fill with new oil up to the upper line of the gauge (2).

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

• Use only multi-grade transmission fluid. Use of other fluids may damage the transmission or hydraulic system.

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

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

• Do not mix different brands oil together.

23.5 L

Transmission fluid capacity

6.2 U.S.gals

5.2 Imp.gals

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

A: Oil level is acceptable within this

range.

9Y1211121GEG0037US0

G-29

Page 45

L2501, WSM

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

Changing Front Axle Case Oil [4WD]

1. To drain the used oil, remove the right and left drain plugs and filling plug at the front axle case and drain the oil completely into the oil pan.

2. After draining reinstall the drain plugs.

3. Remove the oil level check plug.

4. Fill with the new oil up to the check plug port.

5. After filling reinstall the oil inlet plug and check plug.

• Use KUBOTA SUPER UDT-2 fluid or SAE 80, 90 gear oil. Refer to "LUBRICANTS, FUEL AND COOLANT". (See page G-9.)

4.5 L

Front axle case oil capacity

4.8 U.S.qts

4.0 Imp.qts

(1) Drain Plug (2) Check Plug

Lubricating Grease Fitting [2WD]

1. Detach the cover (1), and apply bearing grease.

(1) Front Wheel Hub Cover

Replacing Fuel Filter Element

1. See page G-25.

[7] CHECK POINT OF EVERY 600 HOURS

Adjust Front Axle Pivot

If the front axle pivot pin adjustment is not correct, front wheel

vibration can occur causing vibration in the steering wheel.

1. Loosen the lock nut (2), screw-in the adjusting screw (1) until seated, then tighten the screw with an additional 1/6 turn.

2. Retighten the lock nut.

(1) Adjusting Screw (2) Lock Nut

(3) Oil Inlet Plug

9Y1211121GEG0038US0

9Y1211121GEG0039US0

9Y1211121GEG0085US0

9Y1211121GEG0040US0

[8] CHECK POINT OF EVERY 800 HOURS

[9] CHECK POINT OF EVERY 1500 HOURS

Checking Valve Clearance

1. See page 1-S11.

9Y1211121GEG0041US0

Checking Fuel Injection Nozzle Injection Pressure

1. See page 1-S16.

9Y1211121GEG0042US0

G-30

Page 46

L2501, WSM

WARNING

IMPORTANT

KiSC issued 09, 2014 A

[10] CHECK POINT OF EVERY 3000 HOURS

Checking Injection Pump

1. See page 1-S15.

[11] CHECK POINT OF EVERY 1 YEAR

Replacing Air Cleaner Element

1. See page G-25.

[12] CHECK POINTS OF EVERY 2 YEARS

Flush Cooling System and Changing Coolant

To avoid personal injury or death:

• Do not remove the radiator cap while coolant is hot. When cool, slowly rotated cap to the first stop and allow sufficient time for excess pressure to escape before removing the cap completely.

1. Stop the engine, remove the key and let it cool down.

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

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

4. Fill with clean soft water and cooling system cleaner.

5. Follow directions of the cleaner instruction.

6. After flushing, fill with clean soft water and anti-freeze until the coolant level is just below the radiator cap. INstall the radiator cap securely.

7. Fill with coolant up to the "FULL" mark of recovery tank.

8. Start and operate the engin e for a fe w minu te s.

9. Stop the engine, remove the key and let cool.

10. Check coolant level of recovery tank and add coolant if necessary.

11. Properly dispose of used coolant.

Coolant Capacity

Coolant (Recovery tank) Capacity

GENERAL

9Y1211121GEG0043US0

9Y1211121GEG0044US0

6.0 L

6.3 U.S.qts

5.3 Imp.qts

0.6 L

0.6 U.S.qts

0.5 Imp.qts

• Do not start engine without coolant.

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

• When mixing the anti-freeze with water, the anti-freeze mixing ratio is 50 %.

• Securely tighten radiator cap (1). If the cap is loose or improperly fitted, water may lead out and the engine could overheat.

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

A: FULL B: LOW

9Y1211121GEG0045US0

G-31

Page 47

L2501, WSM

WARNING

KiSC issued 09, 2014 A

GENERAL

Anti-freeze

To avoid personal injury or death:

• When using anti-freeze, put on some protection such as rubber gloves (anti-freeze contains poison).

• If it is swallowed, seek immediate medical help. Do NOT make a person throw up unless told to do so by poison control or a health care professional. Use standard first aid and CPR for signs of shock or cardiac arrest. Call your local emergency number for further assistance.

• When anti-freeze comes in contact with the skin or clothing, wash it off immediately.

• Do not mix different types of anti-freeze. The mixture can produce chemical reaction causing harmful substances.

• Anti-freeze is extremely flammable and explosive under certain conditions. Keep fire and children away from anti-freeze.

• When draining fluids from the engine, place some container underneath the engine body.

• Do not pour waste onto the grounds, down a drain, or into any water source.

• Also, observe the relevant environmental protection regulations when disposing of anti-freeze.

If it freezes, coolant can damage the cylinders and radiator. If

the ambient temperature falls below 0 °C (32 °F) or before a long-term storage, let out cooling water completely, or mix fresh water with long-life coolant and fill the radiator and recovery tank with the mixture.

1. Long-life coolant (hereafter LLC) comes in several types. Use ethylene glycol (EG) type for this engine.

2. Before employing LLC-mixed cooling water, fill the radiator with fresh water and empty it again. Repeat this procedure 2 or 3 times to clean up the inside.

3. Mixing the LLC Put the LLC in cooling water in the percentage (%) for a target temperature. When mixing, stir it up well, and then fill into the radiator.

4. The procedure for the mixing of water and anti-freeze differs according to the make of the antifreeze and the ambient temperature. Refer to SAE J1034 standard, more specifically also to SAE J814c.

Vol %

Anti-

freeze

40 −24 −12 106 222 50 −37 −34 108 226

* At 1.013 × 105 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.

Freezing Point Boiling Point*

°C °F °C °F

(To be continued)

G-32

Page 48

L2501, WSM

NOTE

KiSC issued 09, 2014 A

(Continued)

GENERAL

5. Adding the LLC a) Add only water if the mixture reduces in amount by

evaporation.

b) If there is a mixture leak, add the LLC of the same

manufacturer and type in the same mixture percentage. * Never add any long-life coolant of different manufacturer. (Different brands may have different additive components, and the engine may fail to perform as specified.)

6. When the LLC is mixed, do not employ any radiator cleaning agent. The LLC contains anticorrosive agent. If mixed with the cleaning agent, sludge may build up, adversely affecting the engine parts.

7. Kubota's genuine long-life coolant has a service life of 2 years. Be sure to change the coolant every 2 years.

• The above data represent industry standards that necessitate a minimum glycol content in the concentrated antifreeze.

• When the coolant level drops due to evaporation, add water only to keep the antifreeze mixing ratio less than 50 %. In case of leakage, add antifreeze and water in the specified mixing ratio before filling in to the radiator.

9Y1211121GEG0046US0

Replacing Fuel Hose

1. Replace the fuel hoses and clamps. Refer to "Checking Fuel Line". (See page G-26.)

9Y1211121GEG0047US0

Replacing Radiator Hose (Water Pipes)

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

9Y1211121GEG0048US0

Replacing Power Steering Hose

1. Replace the hoses and clamps. (See page G-27.)

9Y1211121GEG0049US0

Replacing Air Hose

1. Replace the air hose and clamps. Refer to "Checking Intake Air Line". (See page G-27.)

9Y1211121GEG0050US0

Replacing HST Oil Cooler Line (HST Type)

1. Replace the hoses and clamps. (See page G-27.)

9Y1211121GEG0051US0

G-33

Page 49

L2501, WSM

IMPORTANT

NOTE

KiSC issued 09, 2014 A

[13] OTHERS

GENERAL

Bleeding Fuel System

Air must removed:

1. When the fuel filter or lines are removed.

2. When tank is completely empty.

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

1. Fill the fuel tank with fuel.

2. Open the air vent cock (1) on the fuel injection pump.

3. Close the air vent cock (1) after 30 seconds.

• Always close the air vent cock (1) except for bleeding fuel lines. Otherwise, engine runs irregularly or stalls frequently.

(1) Air Vent Cock A: Close

B: Open

9Y1211121GEG0052US0

Draining Clutch Housing Water

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

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

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

2. If water enters into the clutch housing, remove the plug (1) and drain the water, then reinstall the plug.

(1) Split Pin (Plug)

9Y1211121GEG0053US0

G-34

Page 50

L2501, WSM

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

Replacing Fuse

1. The tractor electrical system is protected from potential damage by fuses. A blown fuse indicates that there is an overload or short somewhere in the electrical system.

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

• Before replacing a blown fuse, determine why the fus e blew and make any necessary repairs. Failure to follow this procedure may result in serious damage to the tractor electrical system. Refer to troubleshooting section of this manual. If any of them should blow, replace with a new one of the same capacity.

Fuse No. Capacity (A) Protected circuit

(1) 15 Hazard (2) 10 Work Light (3) 10 Panel (4) 15 Head Light (5) 5 Key stop (6) 5 Glow lamp (7) 5 Starter relay (8) 40 Main (9) 30 Key stop

(10) 40 Key switch

9Y1211121GEG0054US0

G-35

Page 51

L2501, WSM

CAUTION

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

Replacing Head Lamp

To avoid personal injury:

• Be careful not to drop the bulb, hit anything against the lamp, apply excess force, and get the lamp scratched. If broken, glass may cause injury.

• Before replacing the lamp, be sure to turn off the light and wait until the bulb cools down, otherwise, you may get burned.

 Removing Bu lb

1. Remove the rubber boot.

2. Turn the socket counterclockwise while pressing and remove it.

3. Remove the bulb.

 Attaching Bulb

1. Align (A) of the bulb with (B) of the lamp case and attach the bulb.

2. Align (C) of the socket with (D) of the lamp case and attach the socket.

3. Attach the rubber boot.

• Be sure to use a new bulb of the specified wattage.

• Never touch the bulb surface (glass) with bare hands. Fingerprints, for example, may break the bulb.

(1) Rubber Boot (2) Socket (3) Bulb (4) Lamp Case

(A) Align to (B) (C) Align to (D)

9Y1211121GEG0055US0

Replacing Light Bulb

1. Head lights and rear combination lights. Take the bulb out of the light body and replace with a new one.

2. Other lights Detach the lens and replace the bulb.

Light Capacity

Head light 25 W / 25W Tail light 5 W Turn signal / Hazard light (rear) 21 W Turn signal / Hazard light (front) 23 W Instrument panel light 1.7 W

9Y1211121GEG0056US0

G-36

Page 52

L2501, WSM

KiSC issued 09, 2014 A

8. SPECIAL TOOLS

[1] SPECIAL TOOLS FOR ENGINE

Special Use Puller Set Code No.

• 07916-09032

Application

• Use exclusively to pull out bearing, gears and other parts with ease.

Piston Ring Compressor Code No.

• 07909-32111

Application

• Use exclusively to push in the piston with piston rings into the cylinder.

GENERAL

WSM000001GEG0011US0

WSM000001GEG0012US0

Piston Ring Tool Code No.

• 07909-32121

Application

• Use exclusively to remove or install the piston ring with ea se .

WSM000001GEG0013US0

Diesel Engine Compression Tester (for Injection Nozzle) Code No.

• 07909-30208 (Assembly)

• 07909-30934 (A to F)

• 07909-31211 (E and F)

• 07909-31231 (H)

• 07909-31251 (G)

• 07909-31271 (I)

• 07909-31281 (J)

Application

• Use to measure diesel engine compression and diagnostics of need for major overhaul.

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

(7) Adaptor F (8) Adaptor G (9) Adaptor H (10) Adaptor I (11) Adaptor J

WSM000001GEG0014US0

G-37

Page 53

L2501, WSM

KiSC issued 09, 2014 A

GENERAL

Oil Pressure Tester Code No.

• 07916-32032

Application

• Use to measure lubricating oil pressure.

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

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

WSM000001GEG0015US0

Valve Seat Cutter Code No.

• 07909-33102

Application

• Use to reseat valves.

Angle

• 0.79 rad (45 °)

• 0.26 rad (15 °)

Diameter

• 28.6 mm (1.13 in.)

• 31.6 mm (1.24 in.)

• 35.0 mm (1.38 in.)

• 38.0 mm (1.50 in.)

• 41.3 mm (1.63 in.)

• 50.8 mm (2.00 in.)

WSM000001GEG0016US0

Radiator Tester Code No.

• 07909-31551

Application

• Use to check of radiator cap pressure , and leaks from cooling system.

Remarks

• Adaptor (1) BANZAI Code No. RCT-2A-30S.

(1) Adaptor

WSM000001GEG0017US0

Connecting Rod Alignment Tool Code No.

• 07909-31661

Application

• Use to check the connecting rod alignment.

Applicable range

• Connecting rod big end I.D. 30 to 75 mm dia. (1.2 to 2.9 in. dia.)

• Connecting rod length

65.0 to 300 mm (2.56 to 11.8 in.)

WSM000001GEG0020US0

Nozzle Tester Code No.

• 07909-31361

Application

• Use to check the fuel injection pressure and spray pattern of nozzle.

Measuring range

• 0 to 50 MPa (0 to 500 kgf/cm

, 0 to 7200 psi)

WSM000001GEG0021US0

G-38

Page 54

L2501, WSM

KiSC issued 09, 2014 A

GENERAL

Plastigauge Code No.

• 07909-30241

Application

• Use to check the oil clearance between crankshaft and bearing, etc..

Measuring range

• Green: 0.03 to 0.07 mm (0.001 to 0.003 in.)

• Red: 0.05 to 0.1 mm (0.002 to 0.006 in.)

• Blue: 0.1 to 0.2 mm (0.004 to 0.009 in.)

WSM000001GEG0022US0

Red Check Code No.

• 07909-31371

Application

• Use to check cracks on cylinder head, cylinder block, etc..

WSM000001GEG0023US0

Socket Wrench for Crank Pulley Nut (46 mm Deep Socket Wrench)

Application

• To loosen and tighten the mounting nut of fan drive pulley.

A 100 mm (3.94 in.) B 25.0 mm (0.984 in.) C 27.0 mm (1.06 in.) D 45.0 mm dia. (1.77 in. dia.) E 35.0 mm dia. (1.38 in. dia.) F 62.5 mm dia. (2.46 in. dia.) G 46.0 mm (1.81 in.)

M00000003GEG0062US1

Auxiliary Socket for Fixing Crankshaft Sleeve Application

• To fix the crankshaft sleeve of the diesel engine.

A 80.0 mm (3.15 in.) B 60.10 to 60.30 mm (2.367 to 2.374 in.) C 80.0 mm dia. (3.15 in. dia.) D 85.0 mm dia. (3.35 in. dia.) E 60.10 to 60.30 mm dia. (2.367 to 2.374 in. dia.) F 26.30 to 26.40 mm (1.036 to 1.039 in.) G 25.85 to 25.90 mm (1.018 to 1.019 in.) H 15.0 mm (0.591 in.)

I 5.0 mm (0.20 in.)

(1) Stopper (2) Sleeve Guide

G-39

(3) Auxiliary Socket for Pushing

(To be continued)

Page 55

L2501, WSM

KiSC issued 09, 2014 A

(Continued)

GENERAL

Application

• To fix the crankshaft sleeve of the diesel engine.

J 42.0 mm (1.65 in.) K 30.50 to 30.60 mm (1.201 to 1.204 in.) L 23.0 mm (0.906 in.) M 20.0 mm (0.787 in.) N 2.0 mm (0.079 in.) O 31.911 to 31.950 mm dia. (1.2564 to 1.2578 in. dia.) P 30.0 mm dia. (1.18 in. dia.) Q 5.0 mm dia. (0.20 in. dia.) R 0.09 rad (5 °) S 25.0 mm dia. (0.984 in. dia.) T 60.0 mm dia. (2.36 in. dia.) U 79.80 to 79.85 mm dia. (3.142 to 3.143 in. dia.) V 10.0 mm (0.394 in.)

W 0.04 mm dia. (0.002 in. dia.)

X 140 mm (5.51 in.) Y 120 mm (4.72 in.) Z 110 mm (4.33 in.) a 50.0 mm (1.97 in.) b 39.90 to 40.00 mm (1.571 to 1.574 in.) c 25.0 mm (0.984 in.) d 90.0 mm dia. (3.54 in. dia.) e 81.0 mm dia. (3.19 in. dia.)

f 80.10 to 80.15 mm dia. (3.154 to 3.155 in. dia.) g 30.0 mm dia. (1.18 in. dia.) h 5.0 mm dia. (0.20 in. dia.)

i 70.0 mm (2.76 in.)

j 50.0 mm (1.97 in.) k 40.0 mm dia. (1.57 in. dia.)

C1 Chamfer 1.0 mm (0.039 in.) C5 Chamfer 5.0 mm (0.20 in.)

C0.3 Chamfer 0.3 mm (0.01 in.)

R1 1.0 mm radius (0.039 in. radius) R2 2.0 mm radius (0.079 in. radius)

R10 10.0 mm radius (0.394 in. radius)

(2) Sleeve Guide (3) Auxiliary Socket for Pushing

M00000003GEG0063US1

G-40

Page 56

L2501, WSM

KiSC issued 09, 2014 A

GENERAL

Valve Guide Replacing Tool Application

• Use to press out and press in the valve guide.

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

I 5.0 mm (0.20 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 358 in.)

C1 Chamfer 1.0 mm (0.039 in.) C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.30 mm (0.012 in.)

9Y1211121GEG0057US0

Bushing Replacing Tools Application

• To press out and press fit the bushing.

1) For small end bushing

A 162 mm (6.38 in.) B 35 mm (1.4 in.) C 27 mm (1.1 in.) D 35 mm dia. (1.4 in. dia.) E 27.90 to 27.95 mm dia. (1.099 to 1.100 in. dia.) F 25.00 to 25.01 mm dia. (0.9843 to 0.9846 in. dia.)

2) For idle gear bushing

A 175 mm (6.89 in.) B 40 mm (1.6 in.) C 38 mm (1.5 in.) D 45 mm dia. (1.8 in. dia.) E 41.90 to 41.95 mm dia. (1.650 to 1.651 in. dia.) F 37.950 to 37.970 mm dia. (1.4941 to 1.4948 in. dia.)

Flywheel Stopper Application

• Use to loosen and tighten the flywheel screw.

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

9Y1211121GEG0058US0

9Y1211121GEG0059US0

G-41

Page 57

L2501, WSM

KiSC issued 09, 2014 A

GENERAL

Crankshaft Bearing 1 Replacing Tool Application

• Use to press out and press fit the crankshaft bearing 1.

[Extracting tool]

A 135 mm (5.31 in.) B 72 mm (2.83 in.) C R40 mm (R1.57 in.) D 10 mm (0.39 in.) E 20 mm (0.79 in.) F 20 mm dia. (0.79 in. dia.)

G 64.8 to 64.9 mm dia. (2.551 to 2.555 in. dia.)

H 59.8 to 59.9 mm dia. (2.354 to 2.358 in. dia.)

[Inserting tool]

A 130 mm (5.12 in.) B 72 mm (2.83 in.) C R40 mm (R1.57 in.) D 9 mm (0.35 in.) E 4 mm (0.16 in.) F 20 mm (0.79 in.)

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

H 68 mm dia. (2.68 in. dia.)

I 59.8 to 59.9 mm dia. (2.354 to 2.358 in. dia.)

J 64.8 to 64.9 mm dia. (2.551 to 2.555 in. dia.)

9Y1211121GEG0060US0

G-42

Page 58

L2501, WSM

KiSC issued 09, 2014 A

Balancer Metal Replacing Tool (for Removing) Application

• To remove the metal bearing.

GENERAL

A 41 mm (1.6 in.) L 41.934 to 41.950 mm dia. (1.6510 to 1.6515 in. dia.) B 32.5 mm (1.28 in.) M 24.959 to 24.980 mm dia. (0.98264 to 0.98346 in. dia.) C Chamfer 0.3 mm (0.01 in.) N 21.947 to 21.960 mm dia. (0.86406 to 0.86456 in. dia.) D 25 mm dia. (0.98 in. dia.) O 36 mm (1.4 in.) E 46.950 to 46.975 mm dia. (1.8485 to 1.8494 in. dia.) P 5 mm (0.2 in.) F 0.52 rad (30 °) Q 29.0 mm (1.14 in.) G 43.934 to 43.950 mm dia. (1.7297 to 1.7303 in. dia.) R 28.0 mm (1.10 in.) H 148.5 mm (5.846 in.) S 195.25 to 195.75 mm (7.6870 to 7.7066 in.)

I 10 mm (0.39 in.) T 145 mm (5.71 in.)

J 46.50 to 46.75 mm dia. (1.831 to 1.840 in. dia.) U 384.75 to 385.25 mm (15.148 to 15.167 in.)

K 44.950 to 44.975 mm dia. (1.7697 to 1.7706 in. dia.)

M00000003GEG0064US1

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KiSC issued 09, 2014 A

Balancer Metal Replacing Tool (for Fitting) Application

• To press fit the metal bearing.

GENERAL

A 182 mm (7.17 in.) O 60 mm dia. (2.4 in. dia.) B 140 mm (5.51 in.) P 46.950 to 46.975 mm dia. (1.8485 to 1.8494 in. dia.) C 37 mm (1.5 in.) Q 43.934 to 43.950 mm dia. (1.7297 to 1.7303 in. dia.) D 35 mm dia. (1.4 in. dia.) R 140 mm (5.51 in.) E 60 mm dia. (2.4 in. dia.) S 36 mm (1.4 in.)

F 10 mm (0.39 in.) T 60 mm dia. (2.4 in. dia.) G 0.52 rad (30 °) U 46.950 to 46.975 mm dia. (1.8485 to 1.8494 in. dia.) H 21.947 to 21.960 mm dia. (0.86406 to 0.86456 in. dia.) V 44.950 to 44.975 mm dia. (1.7697 to 1.7706 in. dia.)

I 24.959 to 24.980 mm dia. (0.98264 to 0.98346 in. dia.) W 41.934 to 41.950 mm dia. (1.6510 to 1.6515 in. dia.)

J Chamfer 0.3 mm (0.01 in.) X 145 mm (5.71 in.) K 8.8 to 9.2 mm (0.35 to 0.36 in.) Y 195.25 to 195.75 mm (7.6870 to 7.7066 in.)

L 5 mm (0.2 in.) Z 29 mm (1.1 in.) M 3.3 to 3.7 mm (0.13 to 0.14 in.) a 36 mm (1.4 in.) N 25 mm dia. (0.98 in. dia.)

M00000003GEG0065US1

G-44

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L2501, WSM

NOTE

KiSC issued 09, 2014 A

GENERAL

Injection Pump Pressure Tester Application

• Use to check fuel tightness of injection pumps.

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

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

4267 psi)

B Copper gasket C Flange (Material: Steel) D Hex. nut 27 mm (1.06 in.) across the plat E Injection pipe F PF 1/2 G 5 mm (0.20 in.) H 17 mm dia. (0.67 in. dia.)

I 8 mm dia. (0.31 in. dia.) J 1.0 mm (0.039 in.) K 17 mm dia. (0.67 in. dia.) L 6.10 to 6.20 mm dia. (0.2402 to 0.2441 in. dia.) M 8 mm (0.31 in.) N 4 mm (0.16 in.) O 11.97 to 11.99 mm dia. (0.4713 to 0.4721 in. dia.) P PF 1/2 Q 23 mm (0.91 in.) R 17 mm (0.67 in.) S 4 mm (0.16 in.) T 12.00 to 12.02 mm dia. (0.4724 to 0.4732 in. dia.) U 100 mm (3.94 in.) V M12 × 1.5 a Adhesive application b Fillet welding on the enter circumference

9Y1211121GEG0061US0

[2] SPECIAL TOOLS FOR TRACTOR

Relief Valve Pressure Tester Code No.

• 07916-50045

Application

• This allows easy measurement of relief set pressure.

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

(07916-50361)

(6) Adaptor C (PS3/8) (07916-50371) (7) Adaptor D (PT1/8) (07916-50381) (8) Adaptor E (PS3/8) (07916-50392) (9) Adaptor F (PF1/2) (07916-62601) (10) Adaptor 58 (PT1/4) (07916-52391)

WSM000001GEG0027US0

G-45

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L2501, WSM

KiSC issued 09, 2014 A

GENERAL

Adaptor 58 Code No.

• 07916-52391

Application

• Use for checking high pressure relief valve and charge relief pressure.

A 24 mm (0.94 in.) B 35 mm (1.4 in.) C G1/4 × 12 mm (0.47 in.) D 15 mm (0.59 in.) E R1/4 F 15 mm (0.59 in.)

G 5 mm dia. (0.2 in. dia.)

9Y1211121GEG0086US0

Tie-rod End Lifter Code No.

• 07909-39051

Application

• Use to remove the tie-rod end with ease.

WSM000001GEG0029US0

Flow Meter Code No.

• 07916-52791 (Flow Meter)

• 07916-52651 (Hydraulic Test Hose)

Application

• This allows easy testing of hydraulic system.

(1) Flow Meter (2) Hydraulic Test Hose

WSM000001GEG0036US0

Adaptor Set for Flow Meter Code No.

• 07916-54031

Application

• Use for test of the hydraulic system.

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

(8) Adaptor 65 (9) Adaptor 66 (10) Adaptor 67 (11) Adaptor 68 (12) Adaptor 69 (13) Hydraulic Adaptor 1

WSM000001GEG0037US0

G-46

Page 62

L2501, WSM

KiSC issued 09, 2014 A

GENERAL

Power Steering Adaptor Code No.

• 07916-54021

Application

• Use to measure the relief valve setting pressure for power steering.

WSM000001GEG0038US0

Relief Valve Setting Pressure Adaptor G Code No.

• 07916-52751

Application

• This allows easy measurement of relief valve setting pressure from the hydraulic coupler. This is available with the relief valve setting pressure tester.

WSM000001GEG0041US0

Rear Axle Nut Wrench 71 Code No.

• 07916-52531

Application

• Use to remove and tighten a rear axle nut.

WSM000001GEG0040US0

Steering Wheel Puller Code No.

• 07916-51090

Application

• Use to remove the steering wheel without damage to the steering shaft.

WSM000001GEG0030US0

Injector CH3 Code No.

• 07916-52501

Application

• Use to put calcium chloride solution into a rear wheel and to remove it.

WSM000001GEG0031US0

G-47

Page 63

L2501, WSM

KiSC issued 09, 2014 A

GENERAL

Clutch Center Tool (For B and L Series Tractors) Application

• The clutch center tool is for all B and L series tract ors with a diaphragm clutch by changing tip guides. Center piece diameter is 20 mm (0.79 in.).

WSM000001GEG0032US0

Toe-in Gauge Code No.

• 07909-31681

Application

• This allows easy measurement of toe-in for all machine models.

WSM000001GEG0034US0

Rear Axle Cover Puller Code No.

• 07916-51041

Application

• Use to remove a rear axle cover from rear axle.

WSM000001GEG0035US0

Hydrostatic Transmission Tester and HST Adaptor Set Code No.

• 07916-52040 (Hydrostatic Transmission Tester)

• 07916-53072 (HST Adaptor Set)

Application

• This allows easy measurement of hydrostatic transmission pressure.

(1) Hydrostatic Transmission Tester

(07916-52040) (2) Gasket (04714-00200) (3) Connector 3 (07916-51331) (4) Vacuum Gauge (07916-51331) (5) Pressure Gauge (Low Pressure)

(07916-51301) (6) Pressure Gauge (High Pressure)

(in Relief Valve Set Pressure

Tester)

(07916-50321) (7) HN Tube (in Relief Valve Set

Pressure Tester) (07916-50331)

(8) Valve Seat Driver (07916-60841) (9) Connector 1 (07916-60811) (10) Connector 2 (07916-60821) (11) Long Connector (07916-60831) (12) Adaptor 1 (07916-52621) (13) Adaptor 2 with Collar

(07916-52632)

(14) Adaptor 3 with Collar

(07916-52642)

(15) HST Adaptor Set

(07916-53072)

WSM000001GEG0104US0

G-48

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KiSC issued 09, 2014 A

Check and High Pressure Relief Valve Assembly Tool Application

• Use for readjusting relief valve pressure.

GENERAL

A 30 mm (1.2 in.) N Chamfer 0.4 mm (0.02 in.) a 0.17 rad (10 °) B 21 mm (0.83 in.) O Chamfer 3 mm (0.1 in.) b Chamfer 0.3 mm (0.01 in.) C 1 mm (0.04 in.) P Chamfer 2 mm (0.08 in.) c 23 mm (0.91 in.) D 0.52 rad (30 °) Q 21.4 mm (0.843 in.) d 10 mm (0.39 in.) E 50 mm dia. (2.0 in. dia.) R 19 mm (0.75 in.) e 1 mm (0.04 in.) F 10 mm dia. (0.39 in. dia.) S 17 mm (0.67 in.) f 6.5 mm (0.26 in.)

9.10 to 9.30 mm dia.

(0.359 to 0.366 in. dia.)

H 34 mm dia. (1.3 in. dia.) U 50 mm dia. (2.0 in. dia.) h

I M36 × 1.5 mm Pitch V 9.8 mm dia. (0.39 in. dia.) j

J 10 mm (0.39 in.) W 16 mm dia. (0.63 in. dia.) K 16 mm (0.63 in.) X 34.5 mm dia. (1.36 in. dia.) (1) Spacer L 41 mm (1.6 in.) Y 38 mm dia. (1.5 in. dia.) (2) Block M Chamfer 1 mm (0.04 in.) Z 25 mm (0.98 in.) (3) Cap

T 10 mm (0.39 in.) g Chamfer 0.5 mm (0.02 in.)

11.1 to 11.3 mm (0.437 to 0.444 in.)

18.8 to 19.0 mm (0.741 to 0.748 in.)

9Y1211121GEG0062US0

G-49

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L2501, WSM

NOTE

KiSC issued 09, 2014 A

GENERAL

Pump Adaptor Application

• Use for checking the main hydraulic pump.

• You can substitute delivery pipe (parts number : TC220-33422) for this adaptor by cutting pipe and welding plug part(shown as I in the figure).

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

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

A 22 mm (0.872 in.) H 10 mm dia. (0.39 in. dia.) O 61.5 mm (2.42 in.) B 11 mm (0.437 in.) I G 3/8 P 24 mm (0.94 in.) C 24 mm dia. (0.94 in. dia.) J 89 mm (3.50 in.) Q 27.7 mm (1.09 in.) D 18 mm dia. (0.71 in. dia.) K 135 mm (5.31 in.) R 0.244 rad (14 °) E 12 mm dia. (0.47 in. dia.) L 7 mm dia. (0.28 in. dia.) S 40 mm (1.57 in.)

F 1.7 to 1.9 mm (0.067 to 0.075 in.) M 8.5 mm dia. (0.33 in. dia.) T 60 mm dia. (2.36 in. dia.)

G 30 mm Round (1.18 in. Round) N 37 mm (1.46 in.)

(Reference)

• Compared with adaptor 61, the followings are different. a) Dimensions S, T and number of holes M. b) Direction of pipe I.

9Y1211121GEG0063US0

G-50

Page 66

L2501, WSM

NOTE

KiSC issued 09, 2014 A

GENERAL

Hydraulic Arm Shaft Bushing Press-Fitting Tool Application

• Use for replacing the hydraulic arm shaft bushings in the hydraulic cylinder body.

Right Left

54.7 to 54.9 mm

(2.154 to 5.161 in.)

24.5 to 25.5 mm

(0.965 to 1.00 in.)

C 40.0 mm (1.57 in.) 40.0 mm (1.57 in.) D 32.0 mm (1.26 in.) 32.0 mm (1.26 in.)

49.70 to 49.90 mm

(1.957 to 1.964 in.)

F 70.0 mm dia. (2.76 in. dia.) G 40.0 mm dia. (1.57 in. dia.) H 50.0 mm (1.97 in.)

I 10.0 mm (0.39 in.) a 6.3 µm (250 µin.) b 6.3 µm (250 µin.) c 6.3 µm (250 µin.) d 6.3 µm (250 µin.)

49.7 to 49.9 mm (1.957 to 1.964 in.)

21.5 to 22.5 mm (0.847 to 0.885 in.)

44.70 to 44.90 mm (1.760 to 1.767 in.)

9Y1211121GEG0064US0

Pinion Shaft Remover Application

• Use for removing a pinion shaft.

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

A 106 mm (4.17 in.) B 350.0 mm (13.78 in.) C 6.0 mm (0.24 in.) D 90.0 mm (3.54 in.) E 10.0 mm (0.39 in.) F 40.0 mm (1.57 in.) G 10.0 mm (0.39 in.) H 35.6 mm (1.40 in.)

I 36.0 mm (1.42 in.) J 41.6 mm (1.64 in.) K Part code No. 3A201-4130 nut L M27 × 1.5 M M10 × 1.25

9Y1211121GEG0065US0

G-51

Page 67

L2501, WSM

NOTE

KiSC issued 09, 2014 A

GENERAL

Sliding Hammer Application

• Use to removing the bevel pinion shaft with adaptor for front axle.

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

A 120 mm (4.72 in.) B 14.5 mm dia. (0.57 in. dia.) C 60 mm dia. (2.36 in. dia.) D Chamfer 5 mm (0.20 in.) E M14 × P1.5 F 25 mm (0.98 in.)

G 40 mm (1.57 in.)

H 450 mm (17.72 in.)

I 14 mm dia. (0.55 in. dia.) J 50 mm dia. (1.97 in. dia.) K M14 × P1.5 L 10 mm (0.39 in.)

M 30 mm (1.18 in.)

N 110 mm (4.3 in.)

O Chamfer 2 mm (0.08 in.)

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

(1) Hammer (2) Sliding Shaft

(3) Handle (4) Nut (M14 × P1.5)

9Y1211121GEG0066US0

G-52

Page 68

L2501, WSM

NOTE

KiSC issued 09, 2014 A

GENERAL

Adaptor for Sliding Hammer Application

• Use to removing the front axle bevel pinion shaft and hydraulic pump drive gear pin with sliding hammer.

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

A M8 × P1.25 B 25 mm (0.98 in.) C 50 mm (1.97 in.) D 23 mm (0.91 in.) E 27 mm (1.06 in.) F M14 × P1.5

(1) Adaptor (M8) (2) Stud Bolt (M8 × P1.25)

9Y1211121GEG0067US0

G-53

Page 69

L2501, WSM

NOTE

KiSC issued 09, 2014 A

Cylinder Safety Valve Setting Pressure Adaptor

GENERAL

Application

• Use for setting the safety valve to the nozzle tester to measure cranking pressu re and check oil tightn ess of the safety valves.

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

A 45 mm (1.77 in.) N 10 mm dia. (0.39 in. dia.) B 40 mm (1.58 in.) O 7.5 mm dia. (0.3 in. dia.) C 35 mm (13.8 in.) P 1.05 rad (60 °) D 23 to 23.3 mm (0.9055 to 0.9713 in.) Q 3 mm dia. (1.18 in. dia.) E 16 mm dia. (0.63 in. dia.) R 36 mm (1.18 in.) F 40 mm dia. (1.58 in. dia.) S 60 mm (2.36 in.) G 32.4 to 32.7 mm dia. (1.2756 to 1.2874 in. dia.) T 5 mm (0.20 in.) H 21 mm dia. (0.83 in. dia.) U 10 mm (0.39 in.)

I 20 to 20.05 mm dia. (0.7874 to 0.7894 in. dia.) V M30 × P1.5 J 2.5 to 2.59 mm (0.0984 to 0.1097 in.) W 0.52 rad (30 °) K 0.79 rad (45 °) X 8 mm dia. (0.32 in. dia.) L 0.26 rad (15 °) Y 19 mm (0.75 in.) M M12 × P1.5 Z 10 mm (0.39 in.)

9Y1211121GEG0068US0

G-54

Page 70

L2501, WSM

NOTE

KiSC issued 09, 2014 A

GENERAL

Front Axle Rocking Restrictors Application

• Use for restricting front axle rocking.

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

A 350 mm (13.8 in.) B 400 mm (15.7 in.) C 500 mm (2.0 in.) D 12 mm (0.47 in.) E M12 × P1.25 × l30

9Y1211121GEG0069US0

Power Steering Pump Adaptor Application

• Use for checking the relief valve of power steering.

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

• You can make this adaptor by drilling G1/8 hole (shown as E in the table below) to joint (parts number : 66591-36250).

A 26 mm (1.0 in.) B 10 mm (0.4 in.) C 35 mm (1.4 in.) D 17 mm dia. (0.67 in. dia.) E G1/8 × 15 mm (0.6 in.) F G3/8 G 10 mm dia. (0.4 in. dia.) H 15 mm (0.6 in.)

I 25 mm (1.0 in.) J 30 mm (1.2 in.) K 8 mm dia. (0.3 in. dia.)

9Y1211121GEG0070US0

G-55

Page 71

L2501, WSM

WARNING

IMPORTANT

NOTE

KiSC issued 09, 2014 A

GENERAL

9. TIRES

[1] TIRE PRESSURE

To avoid personal injury or death:

• Do not attempt to mount a tire on a rim. This should be done by a qualified person with the proper equipment.

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

• Do not use tires other than those approved by KUBOTA.

9Y1211121GEG0071US0

Inflation Pressure

Though the tire pressure is factory-set to the prescribed level, it naturally drops slowly in the course of time. Thus, check it everyday and inflate as necessary.

• Maintain the maximum pressure in front tires, if using a front loader or when equipped with a full load of front weights.

Tire Sizes Inflation Pressure

, 14 psi)

, 30 psi)

, 32 psi)

, 26 psi)

, 23 psi)

, 30 psi)

Rear

Front

11.2-24, 4PR 100 kPa (1.0 kgf/cm

13.6-16, 4PR 100 kPa (1.0 kgf/cm 15-19.5, 6PR 210 kPa (2.1 kgf/cm

5.00-15, 4PR 220 kPa (2.2 kgf/cm 7-16, 6PR 180 kPa (1.8 kgf/cm 23 × 8.50-12, 4PR 160 kPa (1.6 kgf/cm 25 × 8.50-14, 6PR 160 kPa (1.6 kgf/cm 27 × 8.50-15, 6PR 210 kPa (2.1 kgf/cm

(1) Ground (A) Insufficient

(B) Standard (C) Excessive

9Y1211121GEG0072US0

G-56

Page 72

L2501, WSM

WARNING

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

[2] TREADS ADJUSTMENT

To avoid personal injury or death:

• When working on slopes or working with trailer, set the wheel tread as wide as practice for the job for maximum stability.

• Support tractor securely on stands before removing a wheel.

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

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

9Y1211121GEG0073US0

(1) Front Wheel

Front tread can not be adjusted.

• Do not turn front discs to obtain wider tread.

• When re-fitting or adjusting a wheel, tighten the bolts to the following torques then recheck after driving the tractor 200 m (200 yards) and 10 ti mes of shuttle movement by 5 m (5 yards), and thereafte r according to service interval. (See page G-13.)

9Y1211121GEG0074US0

2WD Front Wheel

5 - 15 Farm 23 × 8.5 - 12 Turf

1050 mm (41.3 in.) 1175 mm (46.3 in.)

4WD Front Wheel

Tire 7-16 Farm

Tread

1095 mm

(43.1 in.)

25 × 8.5-14

Turf

1105 mm (43.5 in.)

9Y1211121GEG0075US0

27 × 8.5-15

Industrial

1115 mm (43.9 in.)

9Y1211121GEG0076US0

G-57

Page 73

L2501, WSM

IMPORTANT

KiSC issued 09, 2014 A

GENERAL

(2) Rear Wheels

Rear tread width can be adjusted with the tires listed below.

To change the tread width

1. Remove the wheel rim and / or disk mounting bolts.

2. Change the position of the rim and / or disk (right and left) to the desired position, and tighten the bolts.

• Always attach wheels as shown in the drawings.

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

• When re-fitting or adjusting a wheel, tighten the bolts to the following torques then recheck after driving the tractor 200 m (200 yards) and 10 times of shuttle movement by 5 m (5 yards), and thereafter according to service interval. (See page G-13.)

15-19.5 Industry 13.6-16 Turf

1145 mm (45.1 in.) 1115 mm (43.9 in.)

11.2-24 Farm

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

9Y1211121GEG0077US0

G-58

Page 74

L2501, WSM

IMPORTANT

CAUTION

KiSC issued 09, 2014 A

GENERAL

[3] TIRE LIQUID INJECTION

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

Another way is to inject water or another liquid, such as a calcium chloride solution in the tires. Water must not be used in winter since it freezes at 0 °C (32 °F). The calcium chloride solution will not freeze and moreover, affords higher effect than water since its specific gravity is higher than that of water by about 20 %. Below is an explanation of calcium chloride solution injection.

• Do not fill the front tires with liquid.

9Y1211121GEG0078US0

Preparation of Calcium Chloride Solution

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

Freezing temp.

−5 °C (23 °F) 12.0 kg (26.5 lbs)

−10 °C (14 °F) 21.0 kg (46.3 lbs)

−15 °C (5 °F) 28.0 kg (61.7 lbs)

−20 °C (−4 °F) 34.0 kg (75.0 lbs)

−25 °C (−13 °F) 40.0 kg (88.2 lbs)

−30 °C (−22 °F) 44.0 kg (97.0 lbs)

−35 °C (−31 °F) 49.0 kg (108 lbs)

−40 °C (−40 °F) 52.0 kg (115 lbs)

−45 °C (−49 °F) 56.0 kg (123 lbs)

−50 °C (−58 °F) 61.0 kg (134 lbs)

Weight of CaCl

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

to be dissolved in 100 L

(a) Water (b) CaCl

(Calcium Chloride)

A: Bad B: Good

9Y1211121GEG0079US0

Attaching Injector

1. Lift the rear tires off the ground.

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

3. Remove the air valve, and attach the injecto r. (Code No. 07916-52501)

(1) Injector (2) Hose

9Y1211121GEG0080US0

G-59

Page 75

L2501, WSM

CAUTION

NOTE

KiSC issued 09, 2014 A

GENERAL

Injection

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

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

The following four ways can be used to inject water or a calcium

chloride solution into tires.

1. Gravity injection (Fig. 1)

2. Pump injection (Fig. 2)

3. Pressure tank injection (Fig. 3)

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

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

Weight of Calcium Chloride Solution Filling 75 % of Full

Capacity of a Tire.

Tire sizes 11.2-24 15-19.5 Slush free at −10 °C (14 °F)

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

Slush free at −24 °C (−11 °F) Solid at −47 °C (−52 °F) [Approx. 1.5 kg (3.5 lbs) CaCl per 4 L (1 gal) of water]

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

per

105 kg

(230 lbs)

110 kg

(240 lbs)

115 kg

(253 lbs)

140 kg

(309 lbs)

150 kg

(331 lbs)

160 kg

(353 lbs)

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

(A) Correct: 75 %

Air Compresses Like A Cushion

(B) Incorrect: 100 % Full

Water Can Not Be Compressed

9Y1211121GEG0081US0

G-60

Page 76

L2501, WSM

KiSC issued 09, 2014 A

GENERAL

Draining Water or Solution

1. Lift the rear tires off the ground.

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

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

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

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

A: Compressed Air

9Y1211121GEG0082US0

G-61

Page 77

L2501, WSM

NOTE

KiSC issued 09, 2014 A

GENERAL

[4] IMPLEMENT LIMITATIONS

The KUBOTA Tractor has been thoroughly tested for proper performance with implements sold or approved by KUBOTA. Use with implements which exceed the maximum specifications listed below, or which are otherwise unfit for use with the KUBOTA Tractor may result in malfunctions or failures of the tractor, damage to other property and injury to the operator or others. [Any malfunctions or failures of the tractor resulting fro m use with improper implements are not covered by the warranty.]

Tread (max. width)

Front

2WD 4WD

L2501 1050 mm (41.3 in.) 1095 mm (43.1 in.) 1290 mm (50.8 in.) 900 kg (1985 lbs)

Actual figures

Implement weight W1

and / or size

L2501 Refer to page G-63. 330 kg (730 lbs) 1000 kg (2200 lbs)

Lower link end max. hydraulic lift capacity: W0 Implement weight: The implement weight which you can put on the link: W1 Max. drawbar load: W2 Trailer loading weight: The max loading weight for trailer (without trailer weight): W3

• Implement size may vary depending on soil operating conditions.

Max. Drawbar Load W2

Rear

Lower link end

max. lifting

capacity W0

Trailer loading weight

W3 Max. capacity

9Y1211121GEG0083US0

G-62

Page 78

L2501, WSM

NOTE

KiSC issued 09, 2014 A

No. Implement Remarks L2501

Max. Load Capacity 1000 kg (2200 lbs)

1 Trailer

Max. Drawbar Load 330 kg (730 lbs) Max. Cutting Width 1524 mm (60 in.)

Rotary-cutter

Max. Weight 350 kg (770 lbs) Max. Cutting Width 1270 mm (50 in.)

2Mower

Flail Mower

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

Sickle Bar

Max. Weight 400 kg (880 lbs)

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

3 Sprayer

Pull Type Max. Tank-capacity 800 L (210 U.S.gals, 176 Imp.gals) 4 Rotary Tiller Max. Tilling Width 1370 mm (54 in.) 5 Bottom Plow Max. Size 12 in. × 2, 16 in. × 1

Max. Harrowing Width 1524 mm (60 in.)

6 Disc-harrow Pull Type

Max. Weight 300 kg (660 lbs) Max. Width 1829 mm (72 in.)

7 Chisel Plow

Max. Weight 350 kg (770 lbs) Max. Tank-capacity 200 L (53 U.S.gals, 44 Imp.gals)

8 Broad Caster

Max. Weight 100 kg (220 lbs)

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

Max. Width 1524 mm (60 in.)

10 Cultivator

Number of Rows 1 Max. Weight 250 kg (550 lbs) Max. Cutting Width 1829 mm (72 in.)

11 Front Loader

Max. Oil Pressure 15.9 MPa (162 kgf/cm Sub Frame Necessary Max. Cutting Width 1829 mm (72 in.)

12 Rear Blade

Max. Oil Pressure 15.9 MPa (162 kgf/cm Max. Lifting Capacity 460 kg (1014 lbs)

13 Front-end Loader

Max. Oil Pressure 15.9 MPa (162 kgf/cm Sub Frame Not necessary Max. Cutting Width 1321 mm (52 in.)

14 Box Blade

Max. Weight 315 kg (694 lbs) Max. Digging Depth 2288 mm (90 in.)

15 Back Hoe

Max. Weight 420 kg (926 lbs) Sub Frame Necessary Max. Width 1524 mm (60 in.)

16 Snow Blade

Max. Weight 300 kg (660 lbs) Max. Working Width 1524 mm (60 in.)

17 Snow Blower

Max. Weight 250 kg (550 lbs)

, 2311 psi)

GENERAL

• Implement size may vary depending on soil operating conditions.

9Y1211121GEG0084US0

G-63

Page 79

1 ENGINE

KiSC issued 09, 2014 A

Page 80

MECHANISM

KiSC issued 09, 2014 A

CONTENTS

1. ENGINE BODY........................................................................................................................... 1-M1

[1] PISTON ................................................................................................................................ 1-M1

[2] HALF-FLOATING HEAD COVER ........................................................................................ 1-M1

2. FUEL SYSTEM...........................................................................................................................1-M2

[1] OUTLINE.............................................................................................................................. 1-M2

[2] GOVERNOR.........................................................................................................................1-M3

[3] INJECTION NOZZLE ...........................................................................................................1-M5

3. COOLING SYSTEM ...................................................................................................................1-M7

Page 81

L2501, WSM

KiSC issued 09, 2014 A

1. ENGINE BODY

[1] PISTON

ENGINE

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

Molybdenum disulfide (MoS

lubricant, like a Graphite or Teflon. This material helps resist metal wears even with little lube oil.

[2] HALF-FLOATING HEAD COVER

cylinder head cover (1) 0.5 mm or so off the cylinder head. This arrangement helps reduce noise co ming from the cylinder head.

)

The molybdenum disulfide (1) serves as a solid

(1) Molybdenum Disulfide

9Y1211121ENM0001US0

The rubber packing (2) is fitted in to maintain the

(1) Cylinder Head Cover (2) Rubber Packing

9Y1211121ENM0002US0

1-M1

Page 82

L2501, WSM

KiSC issued 09, 2014 A

2. FUEL SYSTEM

[1] OUTLINE

ENGINE

(1) Fuel Overflow Pipe (2) Injection Nozzle (3) Injection Pipe

(4) Fuel Tank (5) Injection Pump Air Vent Pipe (6) Injection Pump

(7) Fuel Filter (8) Fuel Feed Pump (9) Fuel Filter Air Vent Pipe

a: Injected Fuel Flow b: Returned Fuel Flow

The fuel system of this tractor is shown in the diagram above. Fuel from the tank flows in the passage as shown by the arrows, and is injected from the nozzle via the fuel

injection pump. Overflow fuel returns to the tank.

The system includes filters and other concerns to protect it from entrance of air, water and dust.

While the engine is running, fuel is fed into the injection pump (6) by the fuel feed p ump (8) after passin g through the fuel filter (7). The fuel camshaft actuates the injection pump and force-feeds fuel to the injection nozzle (2) through the injection pipe (3). Fuel is then sprayed through the nozzle into the combustion chamber. The fuel discharged after lubricating and cooling the injection nozzle is returned to the fuel tank (4) automatically through the overflow pipe (1).

9Y1211121ENM0003US0

1-M2

Page 83

L2501, WSM

KiSC issued 09, 2014 A

[2] GOVERNOR

ENGINE

The governor serves to keep engine speed cons tant by automatically adjusting the amount of fuel supplied to the engine according to changes in the load. This engine employs an all-speed governor which controls the centrifugal force of the steel ball (1) weight, produced by rotation of the fuel camshaft (5), and the tension of the governor spring 1 (7) and 2 (8) are balanced.

(1) Steel Ball (2) Governor Sleeve (3) Steel Ball (4) Governor Ball Case (5) Fuel Camshaft (6) Governor Lever

(7) Governor Spring 1 (8) Governor Spring 2 (9) Fork Lever 2 (10) Fork Lever 1 (11) Fork Lever Shaft (12) Fork Lever Holder

9Y1211121ENM0004US0

At Start

Flowing of the battery current into the engine stop solenoid (16), the plunger (17) is actuated to arrow direction.

Since the steel ball (1) have no centrifugal force, the control rack (14) is pushed to the right by the start spring (13). Accordingly, the control rack (14) moves to the maximum injection position to assure easy starting.

(13) Start Spring (14) Control Rack (15) Injection Pump (16) Engine Stop Solenoid

(17) Plunger (18) Guide (19) Idling Apparatus

9Y1211121ENM0005US0

At Idling

When the speed control lever is set at the idling position after the engine starts, the governor spring 1 (7) does not work at all and the governor spring 2 (8) does only act slightly. The governor sleeve (2) is pushed leftward by a centrifugal force of steel ball (1).

Therefore, the fork lever 1 (10) and control r ack (14) are moved to the left by the governor sle eve (2) and then the start spring (13) is compressed by the control rack (14). As a result, the control rack (14) is kept at a position where a centrifugal force of steel ball (1) and forces of start spring (13), governor spring 2 (8) are balanced, providing stable idling.

(1) Steel Ball (2) Governor Sleeve (6) Governor Lever (7) Governor Spring 1

(8) Governor Spring 2 (10) Fork Lever 1 (13) Start Spring (14) Control Rack

9Y1211121ENM0006US0

1-M3

Page 84

L2501, WSM

KiSC issued 09, 2014 A

ENGINE

At High Speed Running with Overload

When an overload is applied to the engine running at a high speed, the centrifugal force of steel ball (1) becomes small as the engine speed is dropped, and fork lever 2 (9) is pulled to the right by the governor springs 1 (7) and 2 (8), increasing fuel injection. Though, fork lever 2 (9) becomes ineffective in increasing fuel injection when it is stopped by the adjusting screw (21).

After that, when the force of torque spring (20) becomes greater than the centrifugal force of the steel ball (1), fork lever 1 (10) moves rightward to increase fuel injection, causing the engine to run continuously at a high torque.

(1) Steel Ball (7) Governor Spring 1 (8) Governor Spring 2 (9) Fork Lever 2

(10) Fork Lever 1 (19) Idling Apparatus (20) Torque Spring (21) Adjusting Screw

9Y1211121ENM0007US0

To Stop Engine

When the battery current stops, the plunger (17) of engine stop solenoid (16) is returned to the original position, the spring (22) to keep the control rack (14) in "No fuel injection" position.

(14) Control Rack (16) Engine Stop Solenoid

(17) Plunger (22) Spring

9Y1211121ENM0008US0

1-M4

Page 85

L2501, WSM

KiSC issued 09, 2014 A

[3] INJECTION NOZZLE

ENGINE

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.

 Features

The two-spring nozzle holde r 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.

The 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 en gine 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

9Y1211121ENM0009US0

1-M5

Page 86

L2501, WSM

KiSC issued 09, 2014 A

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

ENGINE

 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 bottom left hand figure, and point "A" in the above figure.)

 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) overco mes the combined forces of the first and second spring s, 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.)

9Y1211121ENM0010US0

1-M6

Page 87

L2501, WSM

KiSC issued 09, 2014 A

3. COOLING SYSTEM

ENGINE

(1) Thermostat (2) Cylinder Head Water Jacket (3) Cylinder Block Water Jacket (4) Radiator (5) Cooling Fan (6) Water Pump

The cooling system consists of a radiator (4), a centrifugal water pump (6), a cooling fan (5) and a thermostat (1). The water is cooled as it flows through the radiator core, and the cooling air through the radiator core by cooling

fan.

The water pump receives water from the radiator or from the cylinder head and force it into the cylinder block.

The thermostat opens or closes according to the water temperature. When the water temperature is high, the thermostat opens to allow the water to flow from the cylinder head to the radiator. When the water temperature is low, the thermostat close to flow the water only to the water pump.

9Y1211121ENM0011US0

1-M7

Page 88

SERVICING

KiSC issued 09, 2014 A

CONTENTS

1. TROUBLESHOOTING.................................................................................................................1-S1

2. SERVICING SPECIFICATIONS..................................................................................................1-S4

3. TIGHTENING TORQUES... ... ... ... .... ... ... ... ... .......................................... .... ..................................1-S9

4. CHECKING AND ADJUSTING. ... .... ... ... ... ... .......................................... .... ... ... ..........................1-S10

[1] ENGINE BODY....................................................................................................................1-S10

[2] LUBRICATING SYSTEM.....................................................................................................1-S12

[3] COOLING SYSTEM ............................................................................................................1-S12

[4] FUEL SYSTEM......... ...........................................................................................................1-S15

5. PREPARATION.........................................................................................................................1-S17

[1] MANUAL TRANSMISSION TYPE.......................................................................................1-S17

(1) Separating Engine from Clutch Housing Case....................................... .... ... ... ... ... .... ...1-S17

(2) Separating Engine from Front Axle Frame....................................................................1-S26

[2] HST TYPE...........................................................................................................................1-S28

(1) Separating Engine from Clutch Housing Case....................................... .... ... ... ... ... .... ...1-S28

(2) Separating Engine from Front Axle Frame....................................................................1-S37

6. DISASSEMBLING AND ASSEMBLING ....................................................................................1-S40

[1] CYLINDER HEAD AND VALVES........................................................................................1-S40

[2] TIMING GEARS, CAMSHAFT AND FUEL CAMSHAFT .....................................................1-S44

[3] CONNECTING ROD AND PISTON ....................................................................................1-S48

[4] CRANKSHAFT ....................................................................................................................1-S51

[5] THERMOSTAT....................................................................................................................1-S54

7. SERVICING...............................................................................................................................1-S55

[1] CYLINDER HEAD AND VALVES........................................................................................1-S55

[2] TIMING GEARS, CAMSHAFT AND FUEL CAMSHAFT .....................................................1-S61

[3] PISTON AND CONNECTING ROD ....................................................................................1-S63

[4] CRANKSHAFT ....................................................................................................................1-S66

[5] CYLINDER ..........................................................................................................................1-S71

[6] OIL PUMP ...........................................................................................................................1-S72

Page 89

L2501, WSM

KiSC issued 09, 2014 A

1. TROUBLESHOOTING

ENGINE

Symptom

Engine Does Not Start

(Starter Does Not Run)

Engine Revolution Is Not Smooth

Probable Cause and Checking Procedure

1. No fuel Fill fuel G-9

2. Fuel leak due to loose injection pipe retaining nut

3. Air in the fuel system Vent air G-34

4. Water in the fuel system Change fuel and repair or replace fuel

5. Fuel with low cetane number

6. Excessively high viscosity of fuel or engine oil at low temperature

7. Fuel filter clogged Replace G-25

8. Fuel hose clogged Clean or replace G-26

9. Stop solenoid malfunctioning

10.Injection nozzle clogged Repair or replace 1-S16

11.Injection pump malfunctioning

12.Compression leak from cylinder

13.Excessive valve clearance Adjust 1-S11

14.Improper valve timing Correct or replace timing gear 1-S47

15.Incorrect injection timing Adjust 1-S15

16.Piston ring and cylinder worn

17.Fuel camshaft worn Replace 1-S47

18.Seizure of cranks ha ft, camshaft, piston, cylinder or bearing

1. Electrical system malfunctioning

1. Air cleaner clogged Clean or replace G-25

2. Fuel filter clogged or dirty Replace G-25

3. Fuel leak due to loose injection pipe retaining nut

4. Governor malfunctioning Repair 1-S45

5. Incorrect nozzle opening pressure

6. Injection nozzle stuck or clogged

7. Injection pump malfunctioning

Tighten retaining nut 1-S40

system Use specified fuel G-9

Use specified fuel or engine oil G-9

Replace 9-S14

Repair or replace 1-S44

Solution Order

1. Tighten cylinder he ad screw, glow plug and nozzle holder

2. Replace cylinder head gasket 1-S42

Replace 1-S64,

Repair or replace 1-S52,

Repair or replace 9-S1

Tighten retaining nut 1-S40

Replace 1-S16

Repair or replace 1-S44

Solution

Reference

Page

G-9

1-S40,

1-S42

1-S71

1-S47,

1-S49

1-S1

Page 90

L2501, WSM

KiSC issued 09, 2014 A

ENGINE

Symptom

Either White or Blue Exhaust Gas Is Observed

Probable Cause and

Checking Procedure

Solution

1. Excessive engine oil Reduce to specified level G-9

2. Piston ring and cylinder

Repair or replace 1-S64,

worn or stuck

Reference

Page

1-S71

3. Incorrect injection timing Adjust 1-S15

Either Black or Dark Gray Exhaust Gas Is Observed

1. Overload Reduce the load –

2. Low grade fuel used Use specified fuel G-9

3. Air cleaner clogged Clean or replace G-25

4. Fuel filter clogged Replace G-25

5. Deficient nozzle injection Repair or replace nozzle 1-S16

Deficient Output 1. Air cleaner dirty or clogged Clean or replace G-25

2. Deficient nozzle injection Repair or replace nozzle 1-S16

3. Compression leak Check the compression pressure and

1-S10

repair

4. Incorrect injection timing Adjust 1-S15

5. Engine's moving parts

Repair or replace –

seem to be seizing

6. Injection pump

Repair or replace 1-S44

malfunctioning

Excessive Lubricant Oil Consumption

1. Piston ring's gap facing the same direction

Shift ring gap direction 1-S50

2. Oil ring worn or stuck Replace 1-S50

3. Piston ring groove worn Replace piston 1-S65

4. Valve stem and valve

Replace 1-S57

guide worn

5. Crankshaft bearing, and

Replace 1-S67

crank pin bearing worn

6. Oil leaking due to

Replace 1-S48

damaged seals or packing

Fuel Mixed into Lubricant Oil

1. Injection pump's plunger worn

Repair or replace 1-S44

2. Deficient nozzle injection Replace 1-S16

3. Injection pump broken Replace 1-S44

Water Mixed into Lubricant Oil

1. Head gasket damaged Replace 1-S41

2. Cylinder block or cylinder

Replace 1-S56

head flawed

1-S2

Page 91

L2501, WSM

KiSC issued 09, 2014 A

ENGINE

Symptom

Probable Cause and Checking Procedure

Solution

Reference

Page

Low Oil Pressure 1. Engine oil insufficient Fill G-9

2. Different type of oil Use specified type of oil G-9

3. Oil strainer clogged Clean 1-S48

4. Relief valve stuck with dirt Clean 1-S46

5. Relief valve spring weaken

Replace 1-S46

or broken

6. Oil pump damaged Replace 1-S48

7. Excessive oil clearance of

Replace 1-S68

crankshaft bearing

8. Excessive oil clearance of

Replace 1-S67

crankpin bearing

9. Excessive oil clearance of

Replace 1-S60

rocker arm

10.Oil passage clogged Clean –

High Oil Pressure 1. Different type of oil Use specified type of oil G -9

2. Relief valve damaged Replace 1-S46

Engine Overheated 1. Overload running Reduce the load –

2. Engine oil insufficient Fill G-9

3. Coolant insufficient Fill G-9

4. Unsuitable fuel used Use specified fuel G-9

5. Fan belt broken or elongated

6. Radiator net and radiator

Replace or adjust G-24,

1-S12

Clean 1-S14

fin clogged with dust

7. Radiator cap damaged Replace 1-S13

8. Inside of radiator corroded Clean or replace 1-S13

9. Coolant flow route

Clean or replace 1-S13

corroded

10.Head gasket damaged Replace 1-S42

11.Incorrect injection timing Adjust 1-S15

9Y1211121ENS0001US0

1-S3

Page 92

L2501, WSM

KiSC issued 09, 2014 A

ENGINE

2. SERVICING SPECIFICATIONS

ENGINE BODY

Item Factory Specification Allowable Limit

Cylinder Head Surface Flatness – 0.05 mm / 500 mm

0.002 in. / 19.6 in.

Compression Pressure (When Cranking with Starting Motor)

2.95 to 3.23 MPa

(30.0 to 33.0 kgf/cm

427 to 469 psi) /

290 min

-1

(rpm)

2.35 MPa

(24.0 kgf/cm

341 psi) /

-1

290 min

(rpm)

Difference among Cylinders

–

Top Clearance 0.60 to 0.70 mm

0.024 to 0.027 in.

Valve Clearance (When Cold) 0.18 to 0.22 mm

0.0071 to 0.0086 in.

Valve Seat Width (Intake)

2.12 mm

0.0835 in.

Width (Exhaust)

2.12 mm

0.0835 in.

Angle (Intake)

0.79 rad 45 °

Angle (Exhaust)

0.79 rad 45 °

Valve Face Angle (Intake)

0.79 rad 45 °

Angle (Exhaust)

0.79 rad 45 °

Valve Stem to Valve Guide

Clearance

0.040 to 0.070 mm

0.0016 to 0.0027 in.

10 % or less

–

0.1 mm

0.004 in.

• Valve Stem

• Valve Guide

Valve Recessing Recessing 0.65 to 0.85 mm

Valve Timing (Intake Valve)

Valve Timing (Exhaust Valve)

O.D.

I.D.

Open

1-S4

7.960 to 7.975 mm

0.3134 to 0.3139 in.

8.015 to 8.030 mm

0.3156 to 0.3161 in.

0.026 to 0.033 in.

0.14 rad (8 °)

before B.D.C.

0.35 rad (20 °) after T.D.C.

0.49 rad (28 °)

before B.D.C

0.1 rad (8 °) after T.D.C.

–

0.4 mm

0.016 in.

–

Page 93

L2501, WSM

KiSC issued 09, 2014 A

Item Factory Specification Allowable Limit

Valve Spring Free Length

41.7 to 42.2 mm

1.65 to 1.66 in.

ENGINE

41.2 mm

1.62 in.

Setting Load / Setting Length

Tilt

118 N / 35.0 mm

12.0 kgf / 35.0 mm

26.5 lbf / 1.3780 in. –

100 N / 35.0 mm

10.2 kgf / 35.0 mm

22.5 lbf / 1.3780 in.

1.0 mm

0.039 in.

Rocker Arm Shaft to Rocker Arm

• Rocker Arm Shaft

Clearance

O.D.

0.016 to 0.045 mm

0.00063 to 0.0017 in.

13.973 to 13.984 mm

0.1 mm

0.0039 in. –

0.55012 to 0.55055 in.

• Rocker Arm

I.D.

14.000 to 14.018 mm

–

0.55119 to 0.55188 in.

Push Rod Alignment – 0.25 mm

0.0098 in.

Tappet to Tappet Guide

• Tappet

Clearance

O.D.

0.020 to 0.062 mm

0.00079 to 0.0024 in.

23.959 to 23.980 mm

0.07 mm

0.0028 in. –

0.94327 to 0.94409 in.

• Tappet Guide

I.D.

24.000 to 24.021 mm

–

0.94489 to 0.94570 in.

Timing Gear

• Crank Gear to Idle Gear

Backlash

0.04150 to 0.1122 mm

0.001634 to 0.004417 in.

0.15 mm

0.0059 in.

• Idle Gear to Cam Gear

Backlash

0.04150 to 0.1154 mm

0.001634 to 0.004543 in.

• Idle Gear to Injection Pump Gear

Backlash

0.0415 to 0.1154 mm

0.001634 to 0.004543 in.

• Crank Gear to Oil Pump Gear

Backlash

0.04840 to 0.2455 mm

0.001906 to 0.009665 in.

Idle Gear Side Clearance 0.15 to 0.25 mm

0.0059 to 0.0098 in.

Idle Gear Shaft to Idle Gear Bushing

Clearance

0.025 to 0.066 mm

0.00099 to 0.0025 in.

• Idle Gear Shaft

O.D.

37.959 to 37.975 mm

1.4945 to 1.4950 in.

• Idle Gear Bushing

I.D.

38.000 to 38.025 mm

1.4961 to 1.4970 in.

Camshaft Side Clearance 0.070 to 0.22 mm

0.0028 to 0.0086 in.

Alignment – 0.01 mm

0.15 mm

0.0059 in.

0.15 mm

0.0059 in.

0.30 mm

0.012 in.

0.90 mm

0.035 in.

0.1 mm

0.0039 in. –

–

0.30 mm

0.012 in.

0.0004 in.

1-S5

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L2501, WSM

KiSC issued 09, 2014 A

Cam

ENGINE

Item Factory Specification Allowable Limit

Height (Intake)

32.20 mm

1.268 in.

32.15 mm

1.266 in.

Camshaft Journal to Cylinder Block Bore

• Camshaft Journal

(Exhaust)

Clearance

O.D.

31.80 mm

1.252 in.

0.050 to 0.091 mm

0.0020 to 0.0035 in.

39.934 to 39.950 mm

31.75 mm

1.250 in.

0.15 mm

0.0059 in. –

1.5722 to 1.5728 in.

• Cylinder Block Bore

I.D.

40.000 to 40.025 mm

–

1.5748 to 1.5757 in.

Piston Pin Bore I.D. 25.000 to 25.013 mm

0.98426 to 0.98476 in.

Top ring to Ring Groove Clearance 0.050 to 0.090 mm

0.0020 to 0.0035 in.

Second Ring to Ring Groove Clearance 0.0780 to 0.110 mm

0.00307 to 0.00433 in.

Oil Ring to Ring Groove Clearance 0.030 to 0.070 mm

0.0012 to 0.0027 in.

Top Ring Ring Gap 0.20 to 0.35 mm

0.0079 to 0.013 in.

Second Ring Ring Gap 0.30 to 0.45 mm

0.012 to 0.017 in.

Oil Ring Ring Gap 0.20 to 0.40 mm

0.0079 to 0.015 in.

25.05 mm

0.9862 in.

0.20 mm

0.0079 in.

0.2 mm

0.0079 in.

0.15 mm

0.0059 in.

1.25 mm

0.0492 in.

1.25 mm

0.0492 in.

1.25 mm

0.0492 in.

Connecting Rod Alignment – 0.05 mm

0.0020 in.

Piston Pin to Small End Bushing

Clearance

0.014 to 0.038 mm

0.00056 to 0.00150 in.

0.15 mm

0.0059 in.

•Piston Pin

• Small End Bushing

Crankshaft Alignment – 0.02 mm

Crankshaft Journal to Crankshaft Bearing 1

• Crankshaft Journal

• Crankshaft Bearing 1

Crankshaft Bearing 1 Side Clearance 4.20 to 4.50 mm

O.D.

I.D.

Oil Clearance

O.D.

I.D.

1-S6

25.002 to 25.011 mm

0.98433 to 0.98468 in.

25.025 to 25.040 mm

0.98524 to 0.98582 in.

0.0400 to 0.118 mm

0.00158 to 0.00464 in.

59.921 to 59.940 mm

2.3591 to 2.3598 in.

59.980 to 60.039 mm

2.3615 to 2.3637 in.

0.166 to 0.177 in.

–

0.00079 in.

0.2 mm

0.008 in. –

–

Page 95

L2501, WSM

KiSC issued 09, 2014 A

Item Factory Specification Allowable Limit

Crankshaft Journal to Crankshaft Bearing 2

Oil Clearance

0.0400 to 0.104 mm

0.00158 to 0.00409 in.

ENGINE

0.2 mm

0.008 in.

• Crankshaft Journal

O.D.

59.921 to 59.940 mm

–

2.3591 to 2.3598 in.

• Crankshaft Bearing 2

I.D.

59.980 to 60.025 mm

–

2.3615 to 2.3631 in.

Crankpin to Crankpin Bearing

• Crankpin

Oil Clearance

O.D.

0.025 to 0.087 mm

0.00099 to 0.0034 in.

46.959 to 46.975 mm

0.2 mm

0.0079 in. –

1.8488 to 1.8494 in.

• Crankpin Bearing

I.D.

47.000 to 47.046 mm

–

1.8504 to 1.8522 in.

Crankshaft Side Clearance 0.15 to 0.31 mm

0.0059 to 0.012 in.

0.5 mm

0.02 in.

Crankshaft Sleeve Wear – 0.1 mm

0.004 in.

Cylinder Bore [Standard]

[Oversize]

I.D.

87.000 to 87.022 mm

3.4252 to 3.4260 in.

87.250 to 87.272 mm

3.4351 to 3.4359 in.

+ 0.15 mm

+ 0.0059 in.

+ 0.15 mm

+ 0.0059 in.

Finishing Hone to 2.2 to 3.0 µmRz

(0.000087 to 0.000118 in. Rz)

LUBRICATING SYSTEM

Item Factory Specification Allowable Limit

Engine Oil Pressure At Idle Speed

More than

98 kPa

1.0 kgf/cm

14 psi

At Rated Speed

300 to 440 kPa

3.0 to 4.5 kgf/cm 43 to 64 psi

Inner Rotor to Outer Rotor Clearance 0.030 to 0.14 mm

0.0012 to 0.0055 in.

Outer Rotor to Pump Body Clearance 0.1 1 to 0.19 mm

0.0044 to 0.0074 in.

Inner Rotor to Cover Clearance 0.105 to 0.150 mm

0.00414 to 0.00590 in.

50 kPa

0.5 kgf/cm

7 psi

250 kPa

2.5 kgf/cm

36 psi

0.2 mm

0.008 in.

0.25 mm

0.0098 in.

0.2 mm

0.008 in.

1-S7

Page 96

L2501, WSM

KiSC issued 09, 2014 A

COOLING SYSTEM

Item Factory Specification Allowable Limit

Fan Belt Tension 7. 0 to 9.0 mm

(0.28 to 0.35 in.)

deflection at 98 N

(10 kgf, 22 lbf) of force

Thermostat Valve Opening

Temperature

80.5 to 83.5 °C 177 to 182 °F

(At Beginning)

ENGINE

–

Valve Opening Temperature

95 °C

203 °F (Opened Completely)

Radiator Water Tightness No leak at

140 kPa

1.4 kgf/cm

20 psi

Radiator Cap Pressure Falling

Time

More than 10 seconds

for pressure falling

from 80 to 60 kPa

from 0.9 to 0.6 kgf/cm

from 10 to 9 psi

FUEL SYSTEM

Item Factory Specification Allowable Limit

Injection Pump Injection Timing 0.0568 to 0.0829 rad

(3.25 to 4.75 °) before

T.D.C

Injection Nozzle Injection Pressure 19.1 to 20.1 MPa

195 to 205 kgf/cm

2770 to 2910 psi

Injection Nozzle Valve Seat Valve Seat

Tightness

When the pressure is

16.7 MPa

(170 kgf/cm

, 2420 psi),

the valve seat must be

fuel tightness.

–

9Y1211121ENS0002US0

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Page 97

L2501, WSM

NOTE

KiSC issued 09, 2014 A

ENGINE

3. TIGHTENING TORQUES

Tightening torques of screws, bolts and nuts on the table below are especially specified.

(For general use screws, bolts and nuts: See page G-11.)

Item N·m kgf·m lbf·ft

Steering wheel mounting nut 49 to 55 5.0 to 5.7 37 to 41 Screw (joint shaft) 23.5 to 27.4 2.4 to 2.8 18 to 20 Screw (bearing support) 23.5 to 27.4 2.4 to 2.8 18 to 20 Delivery pipe joint screw (M16) 49 to 68 5.0 to 7.0 37 to 50 Delivery pipe joint screw (PS controller side) 40 to 48 4.0 to 5.0 29 to 36 Delivery pipe joint screw (hydraulic pump side) 49 to 68 5.0 to 7.0 37 to 50 Muffler mounting screw 32 to 37 3.2 to 3.8 24 to 27 Front axle frame mounting screw (M12) 103 to 117 10.5 to 12.0 76.0 to 86.7 Joint screw (HST return pipe) 80 to 88 8.1 to 9.0 59 to 65 Retaining nut (HST delivery pipe) 49 to 58 5.0 to 6.0 37 to 43

Item

Oil pressure switch PT1/8 15 to 19 1.5 to 2.0 11 to 14 Cylinder head cover screw M8 × 1.25 6.87 to 11.2 0.700 to 1.15 5.07 to 8.31 Injection pipe retaining nut M12 × 1.5 25 to 34 2.5 to 3.5 18 to 25 Nozzle holder clamp screw M10 × 1.25 26 to 29 2.3 to 3.0 19 to 21 Retaining screw of overflow pipe

assembly Glow plug M10 × 1.25 15 to 19 1.5 to 2.0 11 to 14 *Rocker arm bracket nut M8 × 1.25 24 to 27 2.4 to 2.8 18 to 20 *Cylinder head screw M11 × 1.25 93.2 to 98.0 9.50 to 10.0 68.8 to 72.3 Hi-idling body M14 × 1.0 45 to 49 4.5 to 5.0 33 to 36 *Fan drive pulley mounting nut M30 × 1.5 138 to 156 14.0 to 16.0 102 to 115 Camshaft set bolt M8 × 1.25 24 to 27 2.4 to 2.8 18 to 20 *Connecting rod screw M8 × 1.0 40 to 44 4.0 to 4.5 29 to 32 *Flywheel screws M12 × 1.25 98.1 to 107 10.0 to 11.0 72.4 to 79.5 Bearing case cover mounting screw M8 × 1.25 24 to 27 2.4 to 2.8 18 to 20 *Main bearing case screws 2 M10 × 1.25 69 to 73 7.0 to 7.5 51 to 54 *Main bearing case screw 1 M9 × 1.25 46 to 50 4.7 to 5.2 34 to 37

Dimension ×

Pitch

M6 × 1.0 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31

N·m kgf·m lbf·ft

• For * marked screws, bolts and nuts on the table, apply engine oil to their threads and seats before

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

tightening.

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

9Y1211121ENS0003US0

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Page 98

L2501, WSM

NOTE

KiSC issued 09, 2014 A

4. CHECKING AND ADJUSTING

[1] ENGINE BODY

Compression Pressure

1. Run the engine until it is warmed up.

2. Stop the engine and disconnect the 2P connector from the stop solenoid in order to inject fuel.

3. Remove the fuel tank and all injection nozzles.

4. Set a compression tester (Code No. 07909-30208) with the adaptor to the nozzle hole (Nozzle hole thread size : M20 × 1.5).

5. Keep the engine stop lever at "Stop Position".

6. While cranking the engine with the starter, measure the compression pressure.

7. Repeat steps 4 through 6 for ea ch cylin d er .

8. If the measurement is below the allowable limit, apply a small amount of oil to the cylinder wall through the nozzle hole and measure the compression pressure again.

9. If the compression pressure is still less than the allowable limit, check the top clearance, valve and cylinder head.

10. If the compression pressure increases after applying oil, check the cylinder wall and piston rings.

ENGINE

• Check the compression pressure with the specified valve clearance.

• Always use a fully charged battery for perfor ming t his te st.

• Variances in cylinder compression values should be under 10 %.

Compression pressure

Factory specification

Allowable limit

2.95 to 3.23 MPa

30.0 to 33.0 kgf/cm 427 to 469 psi

2.35 MPa

24.0 kgf/cm 341 psi

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Page 99

L2501, WSM

IMPORTANT

NOTE

KiSC issued 09, 2014 A

ENGINE

Valve Clearance

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

1. Remove the fuel tank, the head cover, the glow plugs and the timing window cover on the clutch housing.

2. Align the "1TC" mark line on the flywheel and center of timing window so that the No. 1 piston comes to the compression or overlap top dead center.

3. Check the following valve clearance marked with "" using a feeler gauge.

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

Valve clearance Factory specification

0.18 to 0.22 mm

0.0071 to 0.0086 in.

• The "TC" marking line on the flywheel is just for No. 1 cylinder. There is no "TC" marking for the other cylinders.

• No. 1 piston comes to the T.D.C. position when the "TC" marking is aligned with the center mark of timing window on clutch-housing. Turn the flywheel 0.26 rad (15 °) clockwise and counterclockwise to see if the piston is at the compression top dead center or the overlap position. Now referring to the table below, readjust the valve clearance. (The piston is at the compression top dead center when both the IN. and EX. valves do not move; it is at the overlap position when both the valves move.)

• Finally turn the flywheel 6.28 rad (360 °) and align the "TC" marking line and the center mark of timing window. Adjust all the other valve clearance as requ i red .

• After turning the flywheel counterclockwise twice or three times, recheck the valve clearance, firmly tighten the lock nut of the adjusting screw.

Adjustable Cylinder Location

of Piston

When No. 1 piston is at compression top dead center

When No. 1 piston is at overlap position

No. 1  No. 2  No. 3  No. 1 No. 2  No. 3 

Valve Arrangement

IN. EX.

(1) "1TC" Mark Line (2) Center Mark of Timing Window (3) Timing Window (4) 0.26 rad (15 °) Mark Line (of Top

Dead Center or Overlap Position)

1-S11

A: Valve Clearance

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Page 100

L2501, WSM

KiSC issued 09, 2014 A

[2] LUBRICATING SYSTEM

ENGINE

Engine Oil Pressure

1. Remove the engine oil pressure switch, and set an oil pressure tester (Code No. 07916-32032). (Adaptor screw size: PT 1/8).

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

3. If the oil pressure is less than the allowable limit, check the following.

• Engine oil insufficient.

• Oil pump defective

• Oil strainer clogged

• Oil filter cartridge clogged

• Oil gallery clogged

• Excessive oil clearance

• Foreign matter in the relief valve

More than 98 kPa

1.0 kgf/cm 14 psi

50 kPa

0.5 kgf/cm 7 psi

300 to 440 kPa

3.0 to 4.5 kgf/cm 43 to 64 psi

250 kPa

2.5 kgf/cm 36 psi

Engine oil pressure

At idle speed

At rated speed

Factory specification

Allowable limit

Factory specification

Allowable limit

[3] COOLING SYSTEM

(When reassembling)

• After checking the engine oil pressure, tighten the engine oil pressure switch to the specified torque.

15 to 19 N·m

Tightening torque Oil pressure switch

1.5 to 2.0 kgf·m 11 to 14 lbf·ft

9Y1211121ENS0006US0

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 specification

7.0 to 9.0 mm

0.28 to 0.35 in.

9Y1211121ENS0007US0

1-S12