Komatsu WA70-5 Manual

Operation & Maintenance

Manual

WA70-5

WHEEL LOADER

SERIAL NUMBERS

H50051

and up

VEAM320100

WARNING

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.

NOTICE

Komatsu has had the operating and maintenance in-

structionstranslatedintoallthelanguagesofthemem-

ber states in the European Union. Should you wish to

have a version of the operating instructions in another

language, please don’t hesitate to ask at your local

dealer’s.

Printed in Europe 10-04

Introduction

WA70-5 – VEAM320100 1-1

1. Introduction

1.1. Foreword Introduction

1-2 WA70-5 – VEAM320100

1.1. Foreword

The machine must be operated, cleaned, and maintained very

carefully to ensure safe and troublefree operation. If you operate

the machine correctly, these operating instructions will help you to

avoid injuries and damage to property. To ensure this, these oper-

ating instructions take into account all applicable legal regulations

and directives; the operating instructions comprise the following

information:

●Notes on the Operating Instructions

●Notes on Transport

●Notes on Safety Regulations

●Operating Instructions

●Troubleshooting

●Maintenance Instructions

●Technical Data

●Notes on Lubricants and Operating Agents

The operating manual belongs to the machine and is stored in the

lid of the hinged console, on the left of the driver's cab.

The operating instructions are part of the machine and must

always be available at hand in the machine.

If the operating instructions have been lost or if they have become

unreadable, because they are dirty, you may receive a new copy

from Komatsu or your local Komatsu dealer. If the machine is

resold, the operating instructions, the EU Declaration of Confor-

mity (CE), and the licence are to be handed over to the new

owner.

The owner of the machine has to ensure that

●all persons driving the machine have the legally required min-

imum age and are physically and mentally fit to perform the

tasks they are charged with.

●all persons in charge with operating or maintaining the

machine are appropriately instructed before operation or

maintenance is started. They must have completely read and

understood these operating instructions. In particular, this

applies to the following section "Notes on Safety Regulations"

and the chapter "Safety".

●the machine is correctly operated.

●the machine is not improperly modified.

Introduction 1.1. Foreword

WA70-5 – VEAM320100 1-3

Please note:

If the owner modifies safety-related parts of the machine, the cer-

tificate of conformity of the manufacturer will lapse and the person

who has performed the modification has to issue a new certifi-

cate. Should you have any questions concerning this point,

please do not hesitate to ask Komatsu.

Our continuous effort to improve the machine's design may lead

to changes of machine details. However, the introduction of these

improvements does not oblige us to perform them on machines

which have already been delivered and are already in use.

If these improvements result in minor changes, these minor

changes will not be described in the operating instructions.

Should you require new available information about your machine

or have any questions concerning the information given in the

operating instructions, please do not hesitate to contact either

Komatsu or your responsible Komatsu dealer.

These operating instructions may refer to attachments and spe-

cial equipment not available from your local Komatsu dealer.

Should you require attachments or special equipment, ask your

responsible Komatsu dealer.

EU Directives

This machine is labelled with the CE mark indicating that it meets

all basic requirements concerning safety and protection of health

of the EU Machinery Directive 89/392/EEC, its supplements 91/

368 EEC and 93/44 EEC for Europe, and the regulation 95/27/

EEC. In addition, the harmonised European standards EN 292-2

and EN 474/1 of 1994, and EN 474-3 of 1996 were applied for

manufacture of the machine. This fact is documented in the EU

Declaration of Conformity (CE) which is supplied together with the

machine.

This means that in those cases in which the machine is modified

in such a way that safety of the machine is affected, the person

responsible for safety of the machine is the one who has

arranged for the machine to be modified. If you use the machine

for any other purpose than that defined as correct use, you are

the person who has to ensure that safety is maintained. Modifica-

tions of the machine or use of the machine for any other purpose

than that specified as correct use may require a new CE mark

and thus new issuing of an EU Declaration of Conformity.

If a machine is used in other countries than Germany, it may be

possible that special national safety devices and specifications

are missing which may be required for the application in the rele-

vant country. For example, for Komatsu machines, the manufac-

turer has to design the cab roof in such a way that a warning

beacon can be attached to the roof. However, when driving the

machine on roads, this warning beacon must be covered.

1.1. Foreword Introduction

1-4 WA70-5 – VEAM320100

Should you have any questions concerning standards and guide-

lines in the respective country the machine is to be used in,

please ask your Komatsu dealer before you start commissioning

the machine.

In addition to the operating instructions, you must also adhere to

all legal regulations on public traffic and all applicable regulations

on prevention of accidents.

Notes on later installation of electrical and electronical

devices and components

Electrical or electronical devices and/or components installed

later emit electromagnetic radiation which may influence the

proper function of electronic components and parts of the

machine. This may impair safety of the machine and endanger

persons. For this reason, strictly adhere to the following safety

notes.

If you later install electrical and electronical devices and/or com-

ponents in the machine and connect them to the vehicle electrical

system, you are responsible for any malfunctions of the vehicle

electronics or other components resulting from this installation.

Above all, check that all electrical and electronical components

which you install later comply with the valid version of the EMC

directive 89/336/EEC and that they are labelled with the CE mark.

The following requirements must additionally be met for a later

installation of mobile communication systems (e.g. radio, tele-

phone):

●Only install devices which have a licence referring to valid

national regulations.

●The device must be stationary.

●Only use portable or mobile devices in the cab, if they are

connected to a stationary external aerial.

●Install the sender in such a way that it is physically separated

from the vehicle electronics.

●When installing the aerial, make sure that it is installed cor-

rectly with a good chassis earth connection between the

aerial and the chassis of the vehicle.

In addition, adhere to all information about installation and con-

nection of cables and maximum power input indicated in the man-

ufacturer's installation instructions of the machine.

Introduction 1.2. Safety information

WA70-5 – VEAM320100 1-5

1.2. Safety information

The procedures and precautionary measures concerning opera-

tion and maintenance only apply on the provision that the

machine is used as intended.

Most accidents are caused by disregard of basic safety regula-

tions during operation and maintenance of machines. In order to

avoid accidents and thus damage to persons and property, read

all applicable safety notes and warnings in these operating

instructions and on the machine, before you start operation or

maintenance of the machine and always adhere to these safety

notes and warnings.

The following words are used in this manual and on stickers on

the machine to signify safety instructions and enable them to be

recognized as such at a glance:

DANGER

This word is used for safety messages and safety label

where there is a probability of serious injury if the danger is

not avoided. The safety instruction or sticker contains pre-

cautions which must be observed in order to avoid the dan-

ger. Failure to do so can also result in damage to the

machine.

WARNING

This word is used for safety messages and safety label

where there is a potentially dangerous situation which could

lead to serious injury if the danger is not avoided. The safety

instruction or sticker contains precautions which must be

observed in order to avoid the danger. Failure to do so can

also result in damage to the machine.

CAUTION

This word is used for safety messages and safety label in the

event of danger which could result in minor or partly serious

injuries if the danger is not avoided. It may also relate to dan-

gers which may only result in damage to the machine.

NOTE

This word is used for precautions which have to be taken in

order to avoid situations which could result in shortening the

service lift of the machine.

The safety instructions are listed in the chapter "2. Safety" on

page 2-1 and following.

1.2. Safety information Introduction

1-6 WA70-5 – VEAM320100

The transport of persons in the work equipment is strictly

forbidden!

We cannot foresee all circumstances which could result in poten-

tial danger during maintenance and operation. The safety instruc-

tions in this manual and on the machine, therefore, do not

necessarily contain all possible safety precautions. If you are

using a procedure or measure not explicitly permitted and recom-

mended in this manual, you must ensure that you and anyone

else can use any such procedure without any danger or damage

to the machine whatsoever. Please contact your local Komatsu

dealer if you have any doubts about the safety of any procedures.

Introduction 1.3. Introduction

WA70-5 – VEAM320100 1-7

1.3. Introduction

1.3.1. Intended use

This loader is a machine with independent transmission, moving

on wheels. Driving in forward direction, the loader can load or dig

material using its attachments intended for loading operations (i.e.

bucket).

The standard operation cycle of a loader includes filling up and

loading of the bucket, transporting the material and emptying the

bucket.

In combination with the forklift truck attachment the picking up,

transporting and putting down of stacked material is also

considered to be part of the machine’s intended use.

If you use the machine for any other purpose than specified

above, we will not accept any responsibility for safety. All

considerations concerning safety will then be up to the owner or

the operating and maintenance personnel. In any case, neither

you nor any other person are/is authorised to perform work and

functions explicitly prohibited in these operating instructions.

Refer to chapter "3.3.9. Working with the wheel loader" on

page 3-55 for more details.

1.3. Introduction Introduction

1-8 WA70-5 – VEAM320100

1.3.2. Breaking-in the machine

Before the shipment, each machine was carefully checked and

adjusted. A machine that is to be newly commissioned has to be

treated with utmost care during its first 100 operating hours.

If the machine is used for work involving loads exceeding the

specified maximum load for the running-in period, its performance

may be impaired prematurely and its service life may be short-

ened. A new machine must be run in and maintained very care-

fully and thoroughly.

The following points are particularly important:

●Idle the engine for 5 minutes after starting it up.

●Avoid operation with heavy loads or at high speeds.

●Avoid sudden starts, sudden acceleration, sudden steering

und sudden stops except in cases of emergency.

The precautions given in this manual for operating, maintenance,

and safety procedures are only those that apply when this product

is used for the specified purpose. If the machine is used for a pur-

pose that is not listed in this manual Komatsu cannot bear any

responsibility for safety. All consideration of safety in such opera-

tions is the responsibility of the user.

Operations that are prohibited in this manual must never be car-

ried out under any circumstances.

Introduction 1.4. Location of plates

WA70-5 – VEAM320100 1-9

1.4. Location of plates

1.4.1. Machine identification plate

Position of the identification plate (1) (see enlargement)

Serial no. stamp marking (2)

Machine identification plate (PIN)

1.4.2. Engine name-plate

Engine name-plate with serial no.

GK020001GB

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