Komatsu WA380-5 Manuale

WHEEL LOADER

TEN00089-03

WA380

-5

SERIAL NUMBERS

60001

and up

Komatsu has Operation & Maintenance Manuals

written in some other languages. If a foreign language

manual is necessary, contact your local distributor for

availability.

NOTICE

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 near the machine for

reference and periodically reviewed by all personnel who

will come into contact with it.

WARNING

1 - 1

FOREWORD

This manual provides rules and guidelines which will help you use this machine safely and effectively. The

precautions in this manual must be followed at all times when performing operation and maintenance. Most

accidents are caused by the failure to follow fundamental safety rules for the operation and maintenance of

machines. Accidents can be prevented by knowing beforehand conditions that may cause a hazard when

performing operation and maintenance.

WARNING

Before beginning operation or maintenance, operators and maintenance personnel must always observe the following points.

Read this manual thoroughly and understand its contents fully.

Read the safety messages and safety labels given in this manual carefully so that they should be understood fully.

Keep this manual at the storage location for the Operation and Maintenance Manual given below so that all personnel involved

in working on the machine can consult it periodically.

In case this manual should be lost or damaged, immediately contact Komatsu or your Komatsu distributor to obtain a new copy.

When you sell the machine, make sure that this manual should be provided to the new owner together with the machine.

In this manual, measurements are expressed in international standard units (SI). For the reference purpose, weight units used in

the past are also displayed in ( ).

Storage location for the Operation and Maintenance Manual:

Pocket (1) at rear of operator's seat

1 - 2

FOREWORD

SAFETY INFORMATION

To enable you to use this machine safely, safety precautions and labels are given in this manual and affixed to the

machine to give explanations of situations involving potential hazards and of the methods of avoiding such

situations.

Signal words

The following signal words are used to inform you that there is a potential hazardous situation that may lead to

personal injury or damage.

In this manual and on machine labels, the following signal words are used to express the potential level of hazard.

Indicates an imminently hazardous situation which, if not avoided, will result in death or

serious injury.

Indicates a potentially hazardous situation 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. This word is used also to alert against unsafe practices that may cause

property damage.

Example of safety message using signal word

WARNING

When standing up from the operator's seat, always place the work equipment lock lever in the LOCK position.

If you accidentally touch the control levers when they are not locked, this may cause a serious injury or death.

Other signal words

In addition to the above, the following signal words are used to indicate precautions that should be followed to

protect the machine or to give information that is useful to know.

This word is used for precautions that must be taken to avoid actions which could shorten

the life of the machine.

This word is used for information that is useful to know.

1 - 3

FOREWORD

SAFETY INFORMATION

Safety labels

Safety labels are affixed to the machine to inform the operator or maintenance worker on the spot when carrying out

operation or maintenance of the machine that may involve hazard.

This machine uses "Safety labels using words" and "Safety labels using pictograms" to indicate safety procedures.

Example of safety label using words

Safety labels using pictogram

Safety pictograms use a picture to express a level of hazardous

condition equivalent to the signal word. These safety pictograms

use pictures in order to let the operator or maintenance worker

understand the level and type of hazardous condition at all times.

Safety pictograms show the type of hazardous condition at the top

or left side, and the method of avoiding the hazardous condition at

the bottom or right side. In addition, the type of hazardous condition

is displayed inside a triangle and the method of avoiding the

hazardous condition is shown inside a circle.

Komatsu cannot predict every circumstance that might involve a potential hazard in operation and maintenance.

Therefore, the safety messages in this manual and on the machine may not include all possible safety precautions.

If any procedures or actions not specifically recommended or allowed in this manual are used, it is your responsibility

to take the necessary steps to ensure safety.

In no event should you engage in prohibited uses or actions described in this manual.

The explanations, values, and illustrations in this manual were prepared based on the latest information available

at that time. Continuing improvements in the design of this machine can lead to changes in detail which may not

be reflected in this manual. Consult Komatsu or your Komatsu distributor for the latest available information of your

machine or for questions regarding information in this manual.

The numbers in circles in the illustrations correspond to the numbers in ( ) in the text. (For example: 1J(1))

1 - 4

FOREWORD

INTRODUCTION

This Komatsu machine is designed to be used mainly for the following work:

Digging work

Smoothing

Pushing work

Loading work

For details of the operating procedure, see "WORK POSSIBLE USING WHEEL LOADER (PAGE 3-127)".

FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE

In this manual, the directions of the machine (front, rear, left, right) are determined according to the view from the

operator's seat in the direction of travel (front) of the machine.

1 - 5

FOREWORD

NECESSARY INFORMATION

When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following

items.

PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE

On the center right of the front frame.

The design of the nameplate differs according to the territory.

ENGINE SERIAL NO. PLATE

This name plate is affixed on the oil cooler at the side of engine cylinder block on the left side of machine.

EPA: Environmental Protection Agency, U.S.A.

1 - 6

FOREWORD

NECESSARY INFORMATION

POSITION OF SERVICE METER

It is at the center bottom of the machine monitor.

TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR

Machine serial No.

Engine serial No.

Product identification number (PIN)

Distributor name

Address

Service Personnel

Phone/Fax

1 - 7

FOREWORD

CONTENTS

FOREWORD 1- 1

FOREWORD 1- 2

SAFETY INFORMATION 1- 3

INTRODUCTION 1- 5

FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE 1- 5

NECESSARY INFORMATION 1- 6

PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE 1- 6

ENGINE SERIAL NO. PLATE 1- 6

POSITION OF SERVICE METER 1- 7

TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR 1- 7

SAFETY 2- 1

SAFETY 2- 2

SAFETY LABELS 2- 5

LOCATION OF SAFETY LABELS 2- 5

SAFETY LABELS 2- 6

GENERAL PRECAUTIONS 2- 11

PRECAUTIONS FOR OPERATION 2- 20

STARTING ENGINE 2- 20

OPERATION 2- 22

TRANSPORTATION 2- 28

BATTERY 2- 29

TOWING 2- 31

PRECAUTIONS FOR MAINTENANCE 2- 32

PRECAUTIONS WITH TIRES 2- 39

OPERATION 3- 1

GENERAL VIEW 3- 2

GENERAL VIEW OF MACHINE 3- 2

GENERAL VIEW OF CONTROLS AND GAUGES 3- 3

EXPLANATION OF COMPONENTS 3- 6

MACHINE MONITOR 3- 6

SWITCHES 3- 36

CONTROL LEVERS, PEDALS 3- 50

STEERING TILT LOCK LEVER 3- 55

CAP WITH LOCK 3- 56

FRAME LOCK BAR 3- 58

TOWING PIN 3- 58

GREASE PUMP 3- 59

CAB DOOR OPEN LOCK 3- 59

CAB WINDOW OPEN LOCK CANCEL KNOB 3- 59

FUSE 3- 60

SLOW BLOW FUSE 3- 61

POWER OUTLET 3- 62

AM/FM RADIO 3- 63

AM/FM RADIO-CASSETTE STEREO 3- 69

AIR CONDITIONER 3- 77

HANDLING AUTO AIR CONDITIONER 3- 82

HANDLING CAB WIPER 3- 89

OPERATION 3- 90

CHECK BEFORE STARTING ENGINE, ADJUST 3- 90

1 - 8

FOREWORD

CONTENTS

STARTING ENGINE 3-106

OPERATIONS AND CHECKS AFTER STARTING ENGINE 3-110

STOPPING ENGINE 3-112

MOVING THE MACHINE (DIRECTIONAL, SPEED), STOPPING THE MACHINE 3-113

TURNING 3-123

OPERATION OF WORK EQUIPMENT 3-125

WORK POSSIBLE USING WHEEL LOADER 3-127

PRECAUTIONS FOR OPERATION 3-133

ADJUSTING WORK EQUIPMENT POSTURE 3-135

PARKING MACHINE 3-137

CHECKS AFTER COMPLETION OF OPERATION 3-139

LOCKING 3-139

HANDLING THE TIRES 3-140

TRANSPORTATION 3-142

TRANSPORTATION PROCEDURE 3-142

LOADING, UNLOADING WORK WITH TRAILERS 3-142

LIFTING MACHINE 3-146

COLD WEATHER OPERATION 3-148

PRECAUTIONS FOR LOW TEMPERATURE 3-148

PRECAUTIONS AFTER COMPLETION OF WORK 3-149

AFTER COLD WEATHER 3-149

WARMING-UP OPERATION FOR STEERING HYDRAULIC CIRCUIT IN COLD WEATHER 3-150

LONG-TERM STORAGE 3-151

BEFORE STORAGE 3-151

DURING STORAGE 3-151

AFTER STORAGE 3-151

TROUBLESHOOTING 3-152

WHEN MACHINE RUNS OUT OF FUEL 3-152

METHOD OF TOWING MACHINE 3-153

IF BATTERY IS DISCHARGED 3-158

OTHER TROUBLE 3-161

MAINTENANCE 4- 1

GUIDES TO MAINTENANCE 4- 2

OUTLINES OF SERVICE 4- 4

HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC 4- 4

OUTLINE OF ELECTRIC SYSTEM 4- 7

WEAR PARTS 4- 8

WEAR PARTS LIST 4- 8

RECOMMENDED FUEL, COOLANT, AND LUBRICANT 4- 9

USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE 4- 10

RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN

KOMATSU GENUINE OIL 4- 11

STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS 4- 12

TORQUE LIST 4- 12

PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS 4- 13

MAINTENANCE SCHEDULE CHART 4- 14

SERVICE PROCEDURE 4- 16

INITIAL 250 HOURS SERVICE 4- 16

INITIAL 1000 HOURS SERVICE 4- 16

1 - 9

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