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Komatsu WA20-2 User Manual

Komatsu WA20-2
195 pages
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WA20 -2,WA30 -5
WA40 -3,WA50 -3
WHEEL LOADER
SERIAL NUMBERS and up
NOTICE
Komatsu has Operation & Maintenance Manuals written in
some other languages. If a foreign language manual is
necessary, contact your local distributor for availability.
Unsafe use of this machine may cause serious injury
or death. Operators and maintenance personnel
must read this manual before operating or maintain-
ing this machine. This manual should be kept near the
machine for reference and periodically reviewed
by all personnel who will come into contact with it.
WA20 - 11270
WA30 - 18970
WA40 - 13530
WA50 - 20642
SEAM010700

Table of Contents

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Komatsu WA20-2 Specifications

General IconGeneral
Engine Power30.6 kW
Operating Weight4700 kg
Bucket Capacity0.6 m³
Overall Length5.13 m
Overall Width1.85 m
Overall Height2.61 m

Summary

Safety Information

General Precautions

Precautions During Operation

7.1 Before Starting Engine

Safety checks and fire prevention measures before starting the engine.

7.2 Operating Machine

Guidance on starting the engine and operating the machine safely.

7.4 Battery

Safety precautions for handling and starting with the battery.

7.5 Towing

Safe procedures and precautions for towing the machine.

Precautions for Maintenance

8.1 Before Carrying Out Maintenance

Safety measures and tools required before performing maintenance.

8.2 During Maintenance

Safety guidelines for personnel, attachments, and working under the machine.

Position for Attaching Safety Labels

Explanation of Components

Operation

12.1 Check Before Starting Engine

Essential pre-operation checks including walk-around and system checks.

12.1.2 Check Before Starting

Daily checks including pilot lamps, coolant, fuel, and oil levels.

12.1.4 Operations and Checks Before Starting Engine

Final checks of parking brake, directional lever, and pilot lamps before starting.

12.2 Starting Engine

Procedures for normal starting and starting in cold weather.

12.3 Operations and Checks After Starting Engine

Warm-up operations and checks after the engine has started.

12.4 Moving Machine Off

Steps to safely move the machine from a parked position.

12.7 Stopping Machine

Procedures for safely stopping the machine, including parking brake application.

12.8 Operation of Work Equipment

Instructions for operating the lift arm and bucket.

12.9 Work Possible Using Wheel Loader

Guidance on various work applications like digging, leveling, and loading.

12.10 Precautions for Operation

Safety guidelines for water depth, slopes, and driving precautions.

12.12 Parking Machine

Detailed steps for safely parking the machine.

12.14 Stopping Engine

Proper procedure for stopping the engine to ensure longevity.

Transportation

13.1 Loading, Unloading Work

Safety precautions for loading and unloading the machine using ramps.

13.3 Lifting Machine

Safe procedures and precautions for lifting the machine.

Cold Weather Operation

14.1 Precautions for Low Temperature

Measures for starting the engine and managing coolant in low temperatures.

Long-Term Storage

Troubleshooting

16.1 When Machine Runs Out of Fuel

Procedure for bleeding air from the fuel system after refueling.

16.2 Towing the Machine

Precautions and methods for towing a machine.

16.3 If Battery is Discharged

Troubleshooting for a discharged battery, including removal and charging.

Use of Fuel, Coolant and Lubricants According to Ambient Temperature

Periodic Replacement of Safety Critical Parts

Maintenance Schedule Chart

23.1 Maintenance Schedule Chart

Comprehensive chart detailing maintenance items and intervals.

Service Procedure

24.1 Initial 250 Hours Service

Maintenance to be performed after the first 250 operating hours.

24.2 When Required

Procedures for maintenance tasks performed as needed.

24.3 Check Before Starting

Pre-start checks including pilot lamps, coolant, fuel, and oil levels.

Seat Belt

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