Kubota G23 Instruction manual

G23,G26

WORKSHOP MANUAL

KiSC issued 08, 2009 A

TO THE READER

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

maintenance of the G23 and G26. It contains 4 parts: "Information", "General", "Mechanism" and

"Servicing".

QInformation

This section contains information below.

• Safety First

• Safety Label

• Specification

• Dimension

QGeneral

This section contains information below.

• Engine Identification

• Model Identification

• General Precautions

• Maintenance Check List

• Check and Maintenance

• Special Tools

QMechanism

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) for the diesel engine

mechanism that this workshop manual does not include.

QServicing

This section contains information below.

• Troubleshooting

• Servicing Specifications

• Tightening Torques

• Checking, Disassembling and Servicing

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

information available at the time of publication.

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

Since this manual includes many models, information or illustrations and photographs can show

more than one model.

May, 2009

KiSC issued 08, 2009 A

I INFORMATION

KiSC issued 08, 2009 A

CONTENTS

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

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

3. SPECIFICATIONS.......................................................................................................................... I-9

4. DIMENSIONS ............................................................................................................................... I-11

INFORMATION

KiSC issued 08, 2009 A

INFORMATION

G23, G26, WSM

I-1 (EU)

1. SAFETY FIRST

WSM000001INI0001US1

BEFORE YOU START SERVICE

• Read all instructions and safety instructions in this

manual and on your machine safety decals.

• Clean the work area and machine.

• Park the machine on a stable and level ground, and

set the parking brake.

• Lower the implement to the ground.

• Stop the engine, then remove the key.

• Disconnect the battery negative cable.

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

station.

WSM000001INI0010US1

START SAFELY

• Do not do the procedures below when you start the

engine.

– short across starter terminals

– bypass the safety start switch

• Do not alter or remove any part of machine safety

system.

• Before you start the engine, make sure that all shift

levers are in neutral positions or in disengaged

positions.

• Do not start the engine when you stay on the ground.

Start the engine only from operator's seat.

WSM000001INI0015US0

SAFETY FIRST

• This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and on labels on the

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

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

this unit.

DANGER

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

WARNING

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

CAUTION

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

injury.

IMPORTANT

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

NOTE

• Gives helpful information.

KiSC issued 08, 2009 A

INFORMATION

G23, G26, WSM

I-2 (EU)

OPERATE SAFELY

• Do not use the machine after you consume alcohol

or medication or when you are tired.

• Put on applicable clothing and safety equipment.

• Use applicable tools only. Do not use alternative

tools or parts.

• When 2 or more persons do servicing, make sure

that you do it safely.

• Do not operate below the machine that only a jack

holds. Always use a safety stand to hold the

machine.

• Do not touch the hot parts or parts that turn when the

engine operates.

• Do not remove the radiator cap when the engine

operates, or immediately after it stops. If not, hot

water can spout out from the radiator. Only remove

the radiator cap when it is at a sufficiently low

temperature to touch with bare hands. Slowly loosen

the cap to release the pressure before you remove it

fully.

• Released fluid (fuel or hydraulic oil) under pressure

can cause damage to the skin and cause serious

injury. Release the pressure before you disconnect

hydraulic or fuel lines. Tighten all connections before

you apply the pressure.

• Do not open a fuel system under high pressure.

The fluid under high pressure that stays in fuel lines

can cause serious injury. Do not disconnect or repair

the fuel lines, sensors, or any other components

between the fuel pump and injectors on engines with

a common rail fuel system under high pressure.

• Put on an applicable ear protective device (earmuffs

or earplugs) to prevent injury against loud noises.

• Be careful about electric shock. The engine

generates a high voltage of more than DC100 V in

the ECU and is applied to the injector.

WSM000001INI0012US1

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.

WSM000001INI0005US1

KiSC issued 08, 2009 A

INFORMATION

G23, G26, WSM

I-3 (EU)

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.

WSM000001INI0006US1

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.

WSM000001INI0007US1

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.

WSM000001INI0008US1

PREPARE FOR EMERGENCIES

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

times.

• Keep the emergency contact telephone numbers

near your telephone at all times.

WSM000001INI0009US1

KiSC issued 08, 2009 A

INFORMATION

G23, G26, WSM

I-4 (EU)

2. SAFETY DECALS

The following safety decals (pictorial safety labels) are installed on the machine. If a decal becomes

damaged, illegible or is not on the machine, replace it. The decal part number is listed in the parts list.

WSM000001INI0014US0

9Y1210294INI0002US0

KiSC issued 08, 2009 A

INFORMATION

G23, G26, WSM

I-5 (EU)

9Y1210294INI0003US0

KiSC issued 08, 2009 A

INFORMATION

G23, G26, WSM

I-6 (EU)

9Y1210294INI0004US0

KiSC issued 08, 2009 A

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