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Komatsu WA75-3 User Manual

Komatsu WA75-3
239 pages
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VEAM950600
Operation & Maintenance
Manual
WA75
-3
WA85
-3
WHEEL LOADER
SERIAL NUMBERS WA75-3 HA950857 – HA951433
WA75-3 H21408 and up
WA85-3 HA960166 – HA960218
WA85-3 H20219 and up
This material is proprietary to Komatsu America Corp. and is not to be reproduced, used, or disclosed except in
accordance with written authorization from Komatsu America Corp.
It is our policy to improve our products whenever it is possible and practical to do so. We reserve the right to make
changes or improvements at any time without incurring any obligation to install such changes on products sold
previously.
Due to this continuous program of research and development, revisions may be made to this publication. It is
recommended that customers contact their distributor for information on the latest revision.
Copyright 2005 Komatsu
Printed in U.S.A.
Komatsu America Corp.
December 2004

Table of Contents

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Komatsu WA75-3 Specifications

General IconGeneral
BrandKomatsu
ModelWA75-3
CategoryCompact Loader
LanguageEnglish

Summary

Introduction

Safety Information

General safety rules and signal word definitions for hazard communication.

Features

Key features and benefits of the wheel loader.

Loading and Transporting the Machine

Lifting the Machine

Procedures and safety precautions for lifting the machine using hoists.

Securing the Machine During Transport

Methods for securing the machine on a transport vehicle to prevent movement.

Safety

General Safety Measures

Fundamental safety instructions, devices, and emergency exit information.

Fire Prevention and Fire Fighting

Measures to prevent fires and procedures for fire fighting.

Roll-Over Protection System (ROPS)

Importance and function of ROPS for operator protection during rollovers.

Safety Measures During Operation

Before You Start the Engine

Pre-operation checks for workplace safety and the operator's cab.

Machine Operation

Procedures for starting, driving, and operating the machine safely.

Braking

Instructions on using service and parking brakes, including on slopes.

Safety Measures During Maintenance

Prior to Start of Maintenance Measures

Essential safety steps before beginning any maintenance or repair work.

Working Under the Machine

Safety precautions and procedures for performing work beneath the machine.

Tires

Guidelines for checking tire condition, pressure, and safety.

Controls and Indicators

Instrument Panel

Overview of the instrument panel layout and its sections.

Warning Lights

Explanation of various warning lights and their meanings for machine status.

Control Levers, Pedals

Identification and function of all control levers and pedals for machine operation.

Operation

Running in the Machine

Procedures for initial break-in of the machine for first 100 hours of operation.

Preparing the Machine Start

Daily visual checks and pre-operation procedures before starting the engine.

Starting and Switching Off the Engine

Step-by-step instructions for starting, warming up, and shutting down the engine.

Driving

Procedures for starting, driving, steering, and braking the machine.

Operating the Machine

Detailed procedures for preparing and operating the work equipment.

Instructions for Winter Operation

Before the Cold Season

Preparatory measures to ensure trouble-free operation during winter months.

Longer Standstill Periods of the Machine

Procedures for preparing and maintaining the machine during extended periods of non-use.

Troubleshooting

Warning Lights and Indicators

Guide to troubleshooting based on warning lights and indicator signals.

Engine

Troubleshooting common engine issues such as oil pressure, temperature, and starting problems.

Brakes

Troubleshooting guide for brake system faults, including parking and service brakes.

Towing the Machine

Procedures and safety precautions for towing the machine, including with defective brakes.

Maintenance

Maintenance Basics

General principles and procedures for performing maintenance work on the machine.

Maintenance Schedule

Comprehensive schedule detailing maintenance tasks at various operating hour intervals.

Maintenance Prior to Start

Visual Checks

Daily pre-operation visual inspection checklist for critical machine components.

Engine, Checking the Oil Level, Topping Off Oil

Step-by-step guide for checking and refilling engine oil to the correct level.

Checking the Fuel Level, Refueling

Procedure for checking fuel levels and safe refueling practices.

Maintenance After the First 50 Operating Hours

Engine, Changing Oil and Replacing the Oil Filter Cartridge

Detailed procedure for engine oil and filter replacement.

Front and Rear Axle, Changing Oil

Steps for changing the oil in the front and rear axles, including planet gears.

Maintenance Every 50 Operating Hours

Checking Cooling System, Coolant Level in the Radiator and Expansion Tank

Procedure for checking and topping up coolant levels in the cooling system.

Checking the Battery and Acid Level

Instructions for checking battery condition, acid level, and specific density.

Maintenance Every 250 Operating Hours

Front and Rear Axle, Checking the Oil Level

Procedure for checking oil levels in the planet gears and differentials of axles.

Air Filter, Removing/Re-installing and Checking/Cleaning the Filter Insert

Steps for removing, cleaning, and reinstalling the air filter cartridge.

Maintenance Every 500 Operating Hours

Changing the Fuel Filter and Filter Element

Guide for safely changing the fuel filter and element.

Bleeding the Fuel System

Procedure for bleeding the fuel system after filter replacement or fuel depletion.

Maintenance Every 1000 Operating Hours

Cooling System, Exchanging Coolant and Cleaning the System

Steps for draining, cleaning, and refilling the cooling system with new coolant.

Service Brake

Maintenance procedures related to the service brake system, including oil changes and checks.

Maintenance Every 2000 Operating Hours

Hydraulic System, Oil Change

Procedure for changing the hydraulic system oil and bleeding the tank.

Technical Data

Specifications

Key technical specifications for the machine's engine, speed, and dimensions.

Limit Values for Slopes

Maximum permissible slope angles for safe machine operation to prevent damage.

Special Equipment and Attachments

ALS-Electronics

Explanation of the ALS-Electronics system, its function, and operation.

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