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Komatsu D31EX-21 User Manual

Komatsu D31EX-21
256 pages
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D31EX, PX-21
D37EX, PX-21
D39EX, PX-21
SERIAL NUMBER
D31EX-21 - 50501 and up
D31PX-21 - 50501 and up
D37EX-21 - 5501 and up
D37PX-21 - 5501 and up
D39EX-21 -1501 and up
D39PX-21 -1501 and up
BULLDOZER
Unsafe use of this machine may cause serious injury or
death. Operators and maintenance personnel must read
this manual before operating or maintaining this
machine. This manual should be kept inside the cab for
reference and periodically reviewed by all personnel who
will come into contact with the machine.
Operation &
Maintenance Manual
EEAM023900
WARNING

Table of Contents

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Komatsu D31EX-21 Specifications

General IconGeneral
BrandKomatsu
ModelD31EX-21
CategoryConstruction Equipment
LanguageEnglish

Summary

Foreword

Safety Information

Provides essential safety precautions and guidelines for machine operation and maintenance.

Introduction

Overview of the machine's primary functions and directional references.

Necessary Information

Details on identifying machine and engine serial numbers for service and parts.

Safety

Safety Labels

Explains the meaning and location of various warning signs and safety labels on the machine.

General Precautions

Covers general safety rules, personal protective items, and emergency preparedness.

Precautions for Operation

Details safety measures for starting the engine and operating the machine.

Precautions for Maintenance

Highlights safety procedures and warnings for performing maintenance tasks.

Operation

General View

Provides a visual overview of the machine's main components.

Explanation of Components

Detailed explanation of the machine's controls, gauges, and panel functions.

Switches

Description and function of various switches used for machine operation.

Control Levers and Pedals

Explains the operation and function of control levers and pedals.

Work Possible Using Bulldozer

Describes common applications and operational techniques for the bulldozer.

Maintenance

Guide to Maintenance

General guidelines and instructions for performing maintenance tasks.

Outline of Service

Overview of fluids, lubricants, and oil analysis services.

Wear Parts List

Lists common wear parts, their part numbers, and replacement intervals.

Maintenance Schedule Chart

Provides a schedule for periodic maintenance based on operating hours.

Service Procedure

Detailed instructions for performing specific maintenance tasks.

Specifications

Machine Specifications

Technical data including weight, dimensions, and travel speeds for different models.

Attachments, Options

General Precautions

Safety advice for installing and using attachments and options.

Handling Hydraulic Ripper

Instructions for operating and maintaining the hydraulic ripper attachment.

Deluxe Seat

Details on adjusting the deluxe operator's seat for comfort and safety.

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