Komatsu WA800-3E0 Manual

WA800 -3E0
WA900 -3E0
SERIAL NUMBER
WA800-3E0 - 70001 and up
WA900-3E0 - 60001 and up
WHEEL LOADER
Unsafe use of this machine may cause serious injury or
death. Operators and maintenance personnel must read
this manual before operating or maintaining this
machine. This manual should be kept inside the cab for
reference and periodically reviewed by all personnel who
will come into contact with the machine.
Operation &
Maintenance Manual
EEAM026100
WARNING

FOREWORD
11

FOREWORD FOREWORD
1-2
FOREWORD 1
This manual provides rules and guidelines which will help you use this machine safely and effectively. The pre-
cautions 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. Acci-
dents 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 mainte-
nance.
Always be sure to read and understand this manual thoroughly before performing operation and mainte-
nance.
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 in 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 imme-
diately 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

FOREWORD SAFETY INFORMATION
1-3
SAFETY INFORMATION 1
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 situa-
tions.
Signal words
The following signal words are used to inform you that there is a potential hazardous situation that may lead to per-
sonal injury or damage.
In this manual and on machine labels, the following signal words are used to express the potential level of hazard.
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 posi-
tion.
If you accidentally touch the work equipment 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 pro-
tect the machine or to give information that is useful to know.
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.
NOTICE This word is used for precautions that must be taken to avoid actions which could shorten
the life of the machine.
REMARKS This word is used for information that is useful to know.
DANGER
WARNING
CAUTION

SAFETY INFORMATION FOREWORD
1-4
qSafety 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 hazard-
ous condition equivalent to the signal word. These safety picto-
grams 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 condi-
tion at the top or left side, and the method of avoiding the haz-
ardous 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 precau-
tions.
If any procedures or actions not specifically recommended or allowed in this manual are used, it is your responsi-
bility 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.
In addition, the illustrations in this manual may show the machine with optional equipment installed.
If there are any unclear points or you have any questions, please contact your Komatsu distributor.
The numbers in circles in the illustrations correspond to the numbers in ( ) in the text. (For example: 1-> (1))
Part No

FOREWORD SAFETY INFORMATION
1-5
NOISE EMISSION LEVELS 1
WA800-3E0
qSound pressure level at the operator’s station, measured
according to ISO6394 (Static test method, simulated work-
ing cycle).
WA900-3E0
qSound pressure level at the operator’s station, measured
according to ISO6394 (Static test method, simulated work-
ing cycle).

SAFETY INFORMATION FOREWORD
1-6
VIBRATION LEVELS 1
When used for its intended purpose, levels of vibration for the earth-moving machine transmitted from the opera-
tor’s seat are lower than or equal to the tested vibrations for the relative machinery class in compliance with ISO
7096.
WA800-3E0 : the actual acceleration value for the hands and arms is less than or equal to 2.5 m/s².
The actual acceleration value for the body is less than or equal to 0.5m/s².
WA900-3E0 : the actual acceleration value for the hands and arms is less than or equal to 2.5 m/s².
The actual acceleration value for the body is less than or equal to 0.5m/s².
These values were determined using a representative machine and measured during the typical operating condi-
tion indicated below according to the measurement procedures that are defined in the standards ISO 2631/1 and
ISO 5349.
Operating condition:
(WHEEL LOADER:) V-shape loading
Guide to Reduce Vibration Levels on Machine
The following guides can help an operator of this machine to reduce the whole body vibration levels:
1. Use the correct equipment and attachments.
2. Maintain the machine according to this manual
qTire pressures (for wheeled machines), tension of crawler (for crawler machines)
qBrake and steering systems
qControls, hydraulic system and linkages
3. Keep the terrain where the machine is working and traveling in good condition
qRemove any large rocks or obstacles
qFill any ditches and holes
qSite manager should provide machine operators with machine and schedule time to maintain terrain con-
ditions
4. Use a seat that meets ISO 7096 and keep the seat maintained and adjusted
qAdjust the seat and suspension for the weight and size of the operator
qWear seat belt
qInspect and maintain the seat suspension and adjustment mechanisms
5. Steer, brake, accelerate, shift gears (for wheeled machines), and move the attachment levers and pedals
slowly so that the machine moves smoothly
6. Adjust the machine speed and travel path to minimize the vibration level
qWhen pushing with bucket or blade, avoid sudden loading; load gradually
qDrive around obstacles and rough terrain conditions
qSlow down when it is necessary to go over rough terrain
qMake the curve radius of traveling path as large as possible
qTravel at low speed when traveling around sharp curves

FOREWORD SAFETY INFORMATION
1-7
7. Minimize vibrations for long work cycle or long distance traveling
qReduce speed to prevent bounce
qTransport machines long distances between worksites
8. The following guidelines can be effective to minimize risks of low back pain
qOperate the machine only when you are in good health.
qProvide breaks to reduce long periods of sitting in the same posture
qDo not jump down from the cab or machine
qDo not repeatedly handle and lift loads.

INTRODUCTION FOREWORD
1-8
INTRODUCTION 1
This Komatsu machine is designed to be used mainly for the following work:
qDigging work
qSmoothing
qPushing work
qLoading work
For details of the operating procedure, see “WORK POSSIBLE USING WHEEL LOADER (3-104)“.
FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE 1
1. Bucket
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
A
B
CD
(A) Front (C) Left
(B) Rear (D) Right