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.
© 2004 Komatsu Hanomag GmbH
All Rights Reserved
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.
1
2
GK020001GB