KOMATSU wa380-6 loaders op manuals
Operation & Maintenance
Manual
VEAM440100
WA380-6H
WHEEL LOADER
SERIAL NUMBERS
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 instructions translated into all the languages of the member states in the European Union. Should you wish to
have a version of the operating instructions in another
language, please dont hesitate to ask at your local
dealers.
H60051
and up
© 2006 Komatsu Hanomag GmbH
All Rights Reserved
Printed in Europe 07-2006
Foreword
1. Foreword
WA380-6H – VEAM440100 1-1
1.1 Foreword Foreword
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
! Operators and maintenance personnel must always do as
follows before beginning operation or maintenance.
! Always be sure to read and understand this manual thor-
oughly before performing operation and maintenance.
! Read the safety messages given in this manual and the
safety labels affixed to the machine thoroughly and be sure
that you understand them fully.
! Keep this manual at the storage location for the Operation
and Maintenance Manual given below, and have all personnel read it periodically.
! If this manual has been lost or has become dirty and cannot
be read, request a replacement manual immediately from
KOMATSU or your KOMATSU distributor.
! If you sell the machine, be sure to give this manual to the
new owners together with the machine.
! KOMATSU delivers machines that comply with all applicable
regulations and standards of the country to which it has
been shipped. If this machine has been purchased in
another country or purchased from someone in another
country, it may lack certain safety devices and specifications
that are necessary for use in your country. If there is any
question about whether your product complies with the
applicable standards and regulations of your country, consult
KOMATSU or your KOMATSU distributor before operating
the machine.
Storage location for the Operation and Maintenance Manual:
Pocket (1) at rear of operator's seat
1
GK032001
1-2 WA380-6H – VEAM440100
Foreword 1.1 Foreword
1.1.1 EU Directives
Machines supplied by us fulfil the Directive for Machinery 89/
392/EEC and all supplements. If the machine is being used in
another country, it is possible that certain safety regulations and
specifications may not be fulfilled for use in that country. For
example, priority vehicle warning lamps may be used in some
countries, but are forbidden in others.
Please contact our dealer before using the machine if you have
any questions regarding the fulfilment of standards and regulations in a specific country.
Notes on subsequent installation of electrical and electronic equipment and components
Electrical and electronic equipment and/or components which
have been installed subsequently, emit electromagnetic radiation which can influence the function of the electronic components and sections of the machine. This can have an influence
on the safety of the machine and endanger persons. For this
reason, please ensure that the following safety instructions are
observed.
If you are installing electrical or electronic equipment and/or
components in the machine and connect them to the vehicle
electrical system, you must check at own responsibility that the
installations do not cause any disturbance to the vehicle’s electronic system or other components. Above all, you must ensure
that any subsequently installed electrical and electronic components comply with the EMV Directive 89/336/EEC in its current
edition and bear the CE mark.
The following requirements also have to be met for subsequent
installation of mobile communication systems (e.g. radio, telephone):
! Only equipment approved by national legislation (e.g. BZT
approval for Germany) may be used
! The unit must be fixed in position
! Portable or mobile units may only be used inside the vehi-
cles if they are connected to a fixed outside antenna
! The transmitter unit must be spatially separated from the
vehicle’s electronic system
! Make sure when installing the antenna that this is installed
correctly with good earth connection between antenna and
vehicle mass
Also observe KOMATSU and manufacturer’s installation instructions for wiring, installation and maximum permitted power consumption.
WA380-6H – VEAM440100 1-3
1.2 Safety information Foreword
1.2 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.
1.2.1 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.
DANGER
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
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.
1-4 WA380-6H – VEAM440100
Foreword 1.2 Safety information
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.
NOTE
This word is used for precautions that must be taken to avoid
actions which could shorten the life of the machine.
REMARK
This word is used for information that is useful to know.
WA380-6H – VEAM440100 1-5
1.2 Safety information Foreword
1.2.2 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.
For details of safety labels, see "Safety labels (2-2)".
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.
Part No
GK032002
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.
1-6 WA380-6H – VEAM440100
Foreword 1.3 Introduction
1.3 Introduction
This loader is a machine with independent transmission, moving
on chains or wheels. Driving in forward direction, the loader can
load or dig material using its attachments intended for loading
operations (i.e. bucket).
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 (3-122)".
1.3.1 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.
The transport of persons in the work equipment is strictly
forbidden!
For details of the operating procedure, see "Work possible using
wheel loader (3-122)".
WA380-6H – VEAM440100 1-7
1.3 Introduction Foreword
1.3.2 Directions of machine
Front
Bucket
RightLeft
Rear
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.
GK032003
1-8 WA380-6H – VEAM440100
Foreword 1.3 Introduction
1.3.3 Visibility from operator's seat
The visibility standards (ISO 5006) for this machine require a
view shown in the diagram on the right side.
1 m
Visibility in immediate area
The visibility of this machine in the area 1 m from the outside
surface of the machine at a height of 1.5 m is shown in the diagram on the right side. The hatched area (A) shows the area
where the view is blocked by part of the machine when mirrors
or other aids to visibility are installed as standard. Please be fully
aware that there are places that cannot be seen when operating
the machine.
1 m
12-M Radius visibility
The visibility at a radius of 12 m from the machine is as shown in
the diagram below. The hatched areas (B) show the areas
where the view is blocked when mirrors or other aids to visibility
are installed as standard. Please be fully aware that there are
places that cannot be seen when operating the machine.
GK038001
m
2
1
GK038002
WA380-6H – VEAM440100 1-9
1.4 Necessary information Foreword
1.4 Necessary information
When requesting service or ordering replacement parts, please
inform your KOMATSU distributor of the following items.
1.4.1 Product Identification Number (PIN)/Machine serial no. plate and position
On the center right of the front frame.
1.4.2 Engine serial no. plate and position
It is at the top at the rear of the engine on the right side of the
machine.
GK038003GB
GK038004
EPA: Environmental Protection Agency, U.S.A.
1-10 WA380-6H – VEAM440100
Foreword 1.4 Necessary information
1.4.3 ROPS/FOPS-Cab serial no. plate
This plate is located on the right inside cab on the rear beam.
WARNING
GK032006
1.4.4 Axle serial no. plate
This plate is located on the right of front axle and on the left of
rear axle.
1.4.5 Transmission serial no. plate
This plate is located in travel direction front, above the transmission output.
GK032007
GK032008
WA380-6H – VEAM440100 1-11
1.4 Necessary information Foreword
1.4.6 Seat operator serial no. plate
This plate is located in front of seat, covered by the bellows.
GK032009
1.4.7 Position of service meter
The service meter is displayed on the character display at the
bottom center of the machine monitor.
1.4.8 Table to enter serial no. and distributor
Machine serial No.
Engine serial No.
Product identification
number (PIN)
GK038005
Distributor name
Address
Service Personnel
Phone/Fax
1-12 WA380-6H – VEAM440100
Foreword 1.5 Contents
1.5 Contents
1. Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.1.1 EU Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.2.1 Signal words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.2.2 Safety labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1.3.1 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1.3.2 Directions of machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.3.3 Visibility from operator's seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.4 Necessary information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1.4.1 Product Identification Number (PIN)/Machine serial no. plate and position . . . . . . . . . 1-10
1.4.2 Engine serial no. plate and position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1.4.3 ROPS/FOPS-Cab serial no. plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1.4.4 Axle serial no. plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1.4.5 Transmission serial no. plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1.4.6 Seat operator serial no. plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.4.7 Position of service meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.4.8 Table to enter serial no. and distributor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.5 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
1.6 Dimensions, weights and operating data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
1.6.1 WA380-6: Dimensions, weights and operating data . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
1.7 CE-Conforming equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.7.1 CE-Conforming equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.7.2 Manufacturer-supplied CE-Conforming equipment, according
to document 419-93-H1250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
2. Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1 Safety labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.1 Location of safety labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.2 Presentation of safety labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2 General precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.3 Precautions for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2.3.1 Starting engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2.3.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2.3.3 Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
2.3.4 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
2.3.5 Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
2.4 Precautions for maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
2.5 Precautions with tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
WA380-6H – VEAM440100 1-13
1.5 Contents Foreword
3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 General view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.1.1 General view of machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.1.2 General view of controls and gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.2 Explanation of components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.2.1 Machine monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Types of warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Central warning lamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Character display portion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Emergency stop item. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Caution items. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Inspection and maintenance item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
Pilot display portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Meter display portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
Other functions of machine monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
3.2.2 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
3.2.3 Control levers, pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57
3.2.4 Steering tilt lock lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-64
3.2.5 Cap with lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65
3.2.6 Safety bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-66
3.2.7 Towing pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67
3.2.8 Grease pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-67
3.2.9 Cab door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
3.2.10 Cab door open lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
3.2.11 Cab window open lock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
Cab left window open lock reset knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
Cab right window open lock reset knob. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
Reset right window open lock for escape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70
3.2.12 Backup alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70
3.2.13 Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71
Fuse capacity and name of circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71
3.2.14 Slow blow fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-72
3.2.15 Power outlet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73
3.2.16 Air conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74
General locations and function of control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74
Method of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-77
Precautions when using . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79
Precautions for inspection and maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79
Cool box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-80
3.2.17 Handling cab wiper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-80
Preventing damage to wiper arm bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80
3.3 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81
3.3.1 Check before starting engine, adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81
Walk-around check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81
Check before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-84
Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-92
Safety belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-93
1-14 WA380-6H – VEAM440100
Foreword 1.5 Contents
Adjust lever stand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-94
Operations and checks before starting engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-96
3.3.2 Starting engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-98
Normal starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-98
Starting in cold weather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-100
Automatic warming-up operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-101
3.3.3 Operations and checks after starting engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-102
Breaking-in the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-102
Normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-103
3.3.4 Stopping engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-105
3.3.5 Check after stopping engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-105
3.3.6 Moving the machine (directional, speed), stopping the machine . . . . . . . . . . . . . . . . 3-106
Preparations for moving the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-106
Changing gear speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-109
Changing direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-110
Using switch to change between forward and reverse. . . . . . . . . . . . . . . . . . . . . . . . 3-112
Stopping the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-114
Transmission cut-off function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-115
3.3.7 Turning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-117
Emergency steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-118
3.3.8 Operation of work equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-120
Lift arm operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-121
Bucket operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-121
3.3.9 Work possible using wheel loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-122
Digging operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-122
Leveling operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-126
Pushing operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-126
Load and carry operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-127
Loading operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-127
3.3.10 Precautions for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-129
Permissible water depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-129
If wheel brake does not work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-129
Precautions when driving up or down slopes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-129
3.3.11 Adjusting work equipment posture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-131
Adjusting boom kickout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-132
Adjusting bucket positioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-132
Bucket level indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-133
3.3.12 Parking machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-133
3.3.13 Checks after completion of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-135
Before stopping engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-135
After stopping engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-135
3.3.14 Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-136
3.3.15 Handling the tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-137
Precautions when handling tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-137
Tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-137
Precautions for using load and carry method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-138
WA380-6H – VEAM440100 1-15
1.5 Contents Foreword
3.4 Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-139
3.4.1 Transportation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-139
3.4.2 Loading, unloading work with trailers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-139
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-140
Securing machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-140
Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-142
3.4.3 Lifting machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-143
Location of lifting position mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-144
Weight table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-144
Lifting procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-145
3.5 Cold weather operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-146
3.5.1 Precautions for low temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-146
Fuel and lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-146
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-146
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-147
3.5.2 Precautions after completion of work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-148
3.5.3 After cold weather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-148
3.5.4 Warming-up operation for steering hydraulic circuit in cold weather . . . . . . . . . . . . . . 3-149
3.6 Long-term storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-150
3.6.1 Before storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-150
3.6.2 During storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-150
3.6.3 After storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-151
3.7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-152
3.7.1 When machine runs out of fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-152
3.7.2 Towing the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-152
When engine can be used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-154
When engine cannot be used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-154
Releasing parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-155
Emergency travel operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-157
3.7.3 If battery is discharged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-158
Removal and installation of battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-159
Precautions for charging battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-160
Starting engine with booster cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-161
3.7.4 Other trouble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-163
Electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-163
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-164
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-166
4. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 Guides to maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.2 Outlines of service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4.2.1 Handling oil, fuel, coolant, grease and carrying out KOWA
(KOMATSU Oil Wear Analysis) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Coolant and water for dilution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Grease. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
1-16 WA380-6H – VEAM440100
Foreword 1.5 Contents
Carrying out KOWA (KOMATSU Oil Wear Analysis) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Storing oil and fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4.2.2 Outline of electric system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4.3 Wear parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.3.1 Wear parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.4 Fuel, coolant and lubricants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4.4.1 Lubrication chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
4.4.2 Use of fuel, coolant and lubricants according to ambient temperature . . . . . . . . . . . . 4-19
4.4.3 Recommended brands, recommended quality for products other than
KOMATSU genuine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
4.5 Standard tightening torques for bolts and nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
4.5.1 Torque list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
4.6 Periodic replacement of safety critical parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
4.7 Maintenance schedule chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
4.7.1 Maintenance schedule chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
4.8 Replace injector assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
4.9 Service procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.9.1 Initial 50 hours service (only after the first 50 hours) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Check for loose wheel hub bolts, tighten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.9.2 Initial 250 hours service (only after the first 250 hours) . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Replace transmission oil filter cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Replace hydraulic tank filter element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.9.3 Initial 1000 hours service (only after the first 1000 hours) . . . . . . . . . . . . . . . . . . . . . . 4-31
Check engine valve clearance, adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.9.4 When required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Clean, replace air cleaner element. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Clean inside of cooling system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Check transmission oil level, add oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
Check axle oil level, add oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
Clean axle case breather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41
Clean air conditioner condenser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42
Check window washing fluid level, add fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42
Clean radiator fins and cooler fins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43
Check electrical intake air heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Turn, replace bolt on cutting edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
Replace bucket teeth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48
Check air conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50
Replace slow blow fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51
Checking function of accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52
Selection and inspection of tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53
WA380-6H – VEAM440100 1-17
1.5 Contents Foreword
4.9.5 Check before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55
Check before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55
4.9.6 Every 50 hours service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55
Drain water, sediment from fuel tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55
4.9.7 Every 100 hours service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56
Lubricate rear axle pivot pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56
Check oil level in hydraulic tank, add oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56
Clean element in air conditioner fresh air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57
4.9.8 Every 250 hours service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
Check battery electrolyte level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
Check parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61
Check air conditioner compressor belt tension, adjust . . . . . . . . . . . . . . . . . . . . . . . . . 4-61
Check for loose wheel hub bolts, tighten. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62
Clean element in air conditioner recirculation filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63
Checking function of accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64
Lubricating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-65
4.9.9 Every 500 hours service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-66
Change oil in engine oil pan, replace engine oil filter cartridge . . . . . . . . . . . . . . . . . . . 4-66
Replace fuel pre-filter cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68
4.9.10 Every 1000 hours service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71
Replace fuel filter cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71
Change oil in transmission case and transmission oil filter cartridge,
clean strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-73
Clean transmission case breather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-74
Lubricating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-74
Check tightening parts of turbocharger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75
Check alternator driving belt tension and replacement . . . . . . . . . . . . . . . . . . . . . . . . . 4-75
Replace corrosion resistor cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75
4.9.11 Every 2000 hours service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-76
Change oil in hydraulic tank, replace hydraulic filter element . . . . . . . . . . . . . . . . . . . . 4-76
Replace hydraulic tank breather element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-79
Change axle oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-80
Replace element in air conditioner recirculation air filter, fresh air filter . . . . . . . . . . . . 4-81
Check brake disc wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-81
Checking function of accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83
Check alternator, starting motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-84
Check engine valve clearance, adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-84
Check vibration damper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-84
4.9.12 Every 4000 hours service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85
Lubricating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-85
Check water pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-86
Check air conditioner compressor, adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-86
Checking for looseness of high-pressure clamp, hardening of rubber . . . . . . . . . . . . . 4-87
Checking for missing fuel spray prevention cap, hardening of rubber. . . . . . . . . . . . . . 4-88
4.9.13 Every 8000 hours service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-89
Replace high-pressure piping clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-89
Replace injector nozzle tip. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-89
1-18 WA380-6H – VEAM440100
Foreword 1.5 Contents
5. Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.2 Noise emission levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.3 Vibration level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
5.4 Limit values for slopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
6. Attachments, Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.1 Selecting bucket and tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.2 Handling torque converter lock-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.2.1 General locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6.2.2 Method of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6.2.3 Warning/limit functions for travel speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Travel speed warning function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Travel speed limit function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6.3 Handling machines equipped with KOMTRAX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
6.3.1 Basic precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
6.4 Joystick steering system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6.4.1 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6.4.2 Structure and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Operation using joystick lever and operation using steering wheel . . . . . . . . . . . . . . . 6-14
Getting in or out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Adjustment of joystick console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
6.4.3 Operation method of joystick steering system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
6.5 Multi-function lever (with/without auxiliary control lever). . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
6.5.1 Explanation of components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
6.5.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
Using switch to change between forward and reverse. . . . . . . . . . . . . . . . . . . . . . . . . 6-25
6.6 3-lever control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
6.6.1 Explanation of components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
6.7 Hydraulic quick coupler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30
6.7.1 Installing the attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30
6.7.2 Removal and installation of the attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
6.7.3 Precautions for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
6.7.4 Precautions when removing the attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
6.8 Central lubrication system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34
6.8.1 Operating the central lubrication system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34
6.8.2 Display and control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34
LED-display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35
Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35
6.8.3 Changing the lubrication interval times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36
WA380-6H – VEAM440100 1-19
1.5 Contents Foreword
7. Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
8. Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
1-20 WA380-6H – VEAM440100
Foreword 1.6 Dimensions, weights and operating data
1.6 Dimensions, weights and operating data
1.6.1 WA380-6: Dimensions, weights and operating data
Measurements, operating data
Bucket capacity to ISO 7546 m³ 3.1 without teeth and without BOC
Material density t/m³ 1.8
Bucket weight without teeth kg 1,420
Static tipping load, straight kg 14,000
Static tipping load, 40° angle kg 12,100
Breakout force, hydraulic kN 172.5
Lifting capacity, hydraulic, on ground kN 177.1
Operating weight *) kg 17,500
a Reach at 45° discharge mm 1,076
b Dumping height at 45° discharge mm 2,976
c Lift height, hinge pin mm 4,082
d Height to upper edge of bucket mm 5,456
e Digging depth mm 99
A Overall length, bucket on ground mm 8,111
B Wheel base mm 3,300
C Bucket width mm 2,916
These values refer to machines with 23.5-25D Width over tyres mm 2,762
E Gauge mm 2,160
F Ground clearance mm 436
H Overall height mm 3,361
*) Machine without additional counterweight
WA380-6H – VEAM440100 1-21
1.7 CE-Conforming equipment Foreword
1.7 CE-Conforming equipment
1.7.1 CE-Conforming equipment
CE-Conforming equipment
12 345–
Type Part No.
Bucket WA380-6H
Volum e
m³
423-75-H2D90 3.0 5,400 1,678
423-75-H2E00 3.0 5,400 1,738
423-75-H2D30 3.1 5,580 1,538
423-75-H2D40 3.1 5,580 1,598
423-75-H2D00 3.1 5,580 1,421
423-75-H2600 3.1 5,580 1,277
423-75-H2610 3.1 5,580 1,360
423-75-H2620 3.1 5,580 1,471
423-75-H2D10 3.1 5,580 1,481
423-71-H2801 3.1 5,580
423-75-H2E10 3.2 5,760 1,898
423-75-H2D50 3.25 5,850 1,723
423-75-H2D20 3.25 5,850 1,641
423-75-H2D70 3.45 6,210 1,749
Load Capacity
kg
Hydraulic
pressure
bar
Weight
kg
423-75-H2D60 3.45 6,210 1,688
423-71-H2900 3.5 6,300
423-75-H2D80 3.6 6,480 1,909
423-70-H2060 4.5
Fork WA380-6H 423-71-H2780
1
2
3
4
5
GK032012
1-22 WA380-6H – VEAM440100
Foreword 1.7 CE-Conforming equipment
1.7.2 Manufacturer-supplied CE-Conforming equipment, according to document 419-93-H1250
The responsibility for observing valid regulations in the case of
wheel loaders with "interchangeable equipment" (e.g. bucket or
fork-lift) which was not supplied from works lies with the customer which was subsequently fitted to the machine.
The directives for CE conformity and road-traffic registration are
deemed to have been fulfilled when the manufacturer of the
equipment confirms fulfilment of the form 419-93-H1250 alongside.
The certification must be sent to the customer and the wheel
loader manufacturer. The CE conformity declaration for a specific wheel loader is only legally valid once this has taken place.
The dimensions X1, X2, Y1 and Y2 must be provided by the customer for approval for use on public roads. (valid in Germany)
The dimension Sh (smallest tyre radius) must be added to the
dimension D2.
The figure G (in kg) represents the maximum load (equipment
and operating load) which may act upon this point.
Y2
X2
X1
Y1
G
D2
Sh
A1
A2
Sh
GK032013
WA380-6H – VEAM440100 1-23
1.7 CE-Conforming equipment Foreword
1
B1
C1
D2
Sh
B2
C2
Y2
X2
2
H2
H1
J
X1
Y1
D1
A2
G
A1
d1=d2
3
Sh
b3
e
d2
3
d1
c
h
b4
b1
b2
GK032014
1-24 WA380-6H – VEAM440100
Foreword 1.7 CE-Conforming equipment
Manufacturer- supplied CE-Conforming equipment, according to document 419-93-H1250
WA380-6H 419-93-H1250
A1 2,030
A1 Distance: bucket pivoting point - front axle, horizontal
A2 1,304
A2 Distance: bucket pivoting point - front axle, vertical
Sh Distance: road level - front axle
Sh 745
B1 1,870
B1 Distance: driver's eye (1) - front axle, horizontal
B2 2.178
B2 Distance: driver's eye (1) - front axle, vertical
C1 Distance: centre steering wheel - centre front axle,
horizontal
C2 Distance: center steering wheel - centre front axle,
vertical
D1 Distance: headlight - centre front axle, horizontal
D2 Distance: headlight - centre front axle, vertical
G Weight of equipment and working load
H1 Distance: bucket pivoting point - bucket upper edge, ver-
C1 1,616
C2 1,777
D1 226
D2 1,525
G 7,061
H1 1,367
H2 1,644
J270
tical (carrying position)
H2 Distance: bucket pivoting point - vision line, vertical (car-
rying position)
X1 2,641
X2 1,124
J
Distance: road level - bucket bottom edge (carrying position)
X1 Distance: cutter protection - front axle, horizontal
X2 Distance: cutter protection - road level, vertical
Y1 Distance: teeth protection - front axle, horizontal
Y2 Distance: teeth protection - road level, vertical
b1 Bucket connection dimension, boom width inside
b2 Bucket connection dimension, boom arm
b3 Bucket connection dimension, tilt rod
b4 Bucket connection dimension, temporary size
c
Bucket connection dimension between d1 and d2, vertical
d1 Bucket connection dimension, bolt (3) for boom
d2 Bucket connection dimension, bolt (3) for tilt rod
e
Bucket connection dimension d1 - d2, horizontally displaced
h Distance: bucket bottom edge - boom bolt hole
l Distance: centre of bolt - centre of fastening screw
Y1 2,812
Y2 1,272
b1 992
b2 108
b3 116
b4 438
c387
d1 85
d2 85
e20
h280
l90
1 Driver’s eye
2 Vision line
3Bolts
Tyr es 23.5 R25
Bucket 423-75-H2010
WA380-6H – VEAM440100 1-25
1.7 CE-Conforming equipment Foreword
1-26 WA380-6H – VEAM440100
Safety
2. Safety
WARNING
Please read and make sure that you fully understand the precautions described
in this manual and the safety labels on the machine. When operating or servicing
the machine, always follow these precautions strictly.
WA380-6H – VEAM440100 2-1
2.1 Safety labels Safety
2.1 Safety labels
The following safety labels are used on this machine. Be sure
that you fully understand the correct position and content of
these safety labels.
To ensure that the content of these safety labels can be read
properly, be sure that they are in the correct place and always
keep them clean. When cleaning them, use soap and water. Do
not use organic solvents or gasoline. These may cause the
safety labels to peel off.
If the safety labels are damaged or lost, or cannot be read,
replace them with new parts. For details of the part numbers,
see this manual or check on the actual part, and order the new
part from your KOMATSU distributor.
There are also other labels in addition to the safety labels. Handle these labels in the same way.
2.1.1 Location of safety labels
9, 11
3
8
9
1, 2, 14, 15
6
5
9
13
12
12
13
5
4, 7
739 8 9, 11
3
2-2 WA380-6H – VEAM440100
10
GK038006
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