Komatsu WD600-3 Operator Manual
Operation & Maintenance
Operation & Maintenance
Operation & MaintenanceOperation & Maintenance
Manual
Manual
ManualManual
SEAM039100T
WD600
WHEEL DOZER
SERIAL NUMBERS
This material is proprietary to Komatsu America International Company and is not to be reproduced, used, or
disclosed except in accordance with written authorization from Komatsu America International Company.
It is our policy to improve our products whenever it is possible and practical to do so. We reserve the right to
make changes or improvements at any time without incurring any obligation to install such changes on
products sold previously.
Due to this continuous program of research and development, revisions may be made to this publication. It
is recommended that customers contact their distributor for information on the latest revision.
WD600-3 - 50001
-3
and up
December 2002
Copyright 2002 Komatsu
DataKom Publishing Division
.
1 - 1
.
FOREWORD
FOREWORD
FOREWORD
Operators
and
maintenance
personnel
must
always
doasfollows
before
beginning
operation
or
maintenance.
Always
be
suretoread
and
understand
this
manual
thoroughly
before
performing
operation
and
maintenance.
Read
the
safety
messages
given
in
this
manual
and
the
safety
labels
affixed
to
the
machine
thoroughly
andbesure
that
you
understand
them
fully.
Keep
this
manual
at
the
storage
location
for
the
Operation
and
Maintenance
Manual
given
below,
and
have
all
personnel
readitperiodically.
Ifthis
manual
has
been
lostorhas
become
dirty
and
cannot
be
read,
request
a
replacement
manual
immediately
from
Komatsu
or
your
Komatsu
distributor.
If
you
sell
the
machine,
be
suretogive
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
useinyour
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.
1 - 2
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 hazard when performing
operation and maintenance.
Storage location for the Operation and Maintenance Manual:
Pocket (1) at rear of operator's seat
.
FOREWORD
FOREWORD
1 - 3
.
FOREWORD
FOREWORD
1 - 4
.
FOREWORD
SAFETY INFORMATION
SAFETY INFORMATION
Signal
words
Example
of
safety
message
using
signal
word
When
standing
up
from
the
operator's
seat,
always
place
the
safety
lock
leverinthe
LOCK
position.
If
you
accidentally
touch
the
control
levers
when
they
are
not
locked,
this
may
cause
a
serious
injury
or
death.
Other
signal
words
1 - 5
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.
The following signal words are used to inform you that there is a potential hazardous situation that may lead to
personal injury or damage.
In this manual and on machine labels, the following signal words are used to express the potential level of hazard.
Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. This word is used also to alert against unsafe practices that may cause
property damage.
In addition to the above, the following signal words are used to indicate precautions that should be followed to
protect the machine or to give information that is useful to know.
This word is used for precautions that must be taken to avoid actions which could shorten
the life of the machine.
This word is used for information that is useful to know.
.
FOREWORD
SAFETY INFORMATION
Safety
labels
Example
of
safety
label
using
words
Safety
labels
using
pictogram
1 - 6
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.
Safety pictograms use a picture to express a level of hazardous
condition equivalent to the signal word. These safety pictograms
use pictures in order to let the operator or maintenance worker
understand the level and type of hazardous condition at all times.
Safety pictograms show the type of hazardous condition at the top
or left side, and the method of avoiding the hazardous condition at
the bottom or right side. In addition, the type of hazardous condition
is displayed inside a triangle and the method of avoiding the
hazardous condition is shown inside a circle.
Komatsu cannot predict every circumstance that might involve a potential hazard in operation and maintenance.
Therefore, the safety messages in this manual and on the machine may not include all possible safety precautions.
If any procedures or actions not specifically recommended or allowed in this manual are used, it is your responsibility
to take the necessary steps to ensure safety.
In no event should you engage in prohibited uses or actions described in this manual.
The explanations, values, and illustrations in this manual were prepared based on the latest information available
at that time. Continuing improvements in the design of this machine can lead to changes in detail which may not
be reflected in this manual. Consult Komatsu or your Komatsu distributor for the latest available information of your
machine or for questions regarding information in this manual.
The numbers in circles in the illustrations correspond to the numbers in ( ) in the text. (For example: j -> (1))
.
FOREWORD
INTRODUCTION
INTRODUCTION
FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE
1 - 7
This Komatsu machine is designed to be used mainly for the following work:
Ditching
Smoothing
Dozing
Felling and uprooting
For details of the operating procedure, see "WORK POSSIBLE USING WHEEL DOZER (PAGE 3-66)".
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.
.
FOREWORD
NECESSARY INFORMATION
NECESSARY INFORMATION
MACHINE SERIAL NO. PLATE AND POSITION
ENGINE SERIAL NO. PLATE AND POSITION
1 - 8
When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following
items.
On the center right of the front frame.
On the upper left of the cylinder block, when seen from the fan side.
.
FOREWORD
NECESSARY INFORMATION
POSITION OF SERVICE METER
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR
1 - 9
On the lower right of maintenance monitor.
Machine serial No.
Engine serial No.
Distributor name
Address
Service Personnel
Phone/Fax
.
FOREWORD
CONTENTS
CONTENTS
1 - 10
FOREWORD 1- 1
FOREWORD 1- 2
SAFETY INFORMATION 1- 5
INTRODUCTION 1- 7
FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE 1- 7
NECESSARY INFORMATION 1- 8
MACHINE SERIAL NO. PLATE AND POSITION 1- 8
ENGINE SERIAL NO. PLATE AND POSITION 1- 8
POSITION OF SERVICE METER 1- 9
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR 1- 9
SAFETY 2- 1
SAFETY 2- 2
SAFETY LABELS 2- 4
LOCATION OF SAFETY LABELS 2- 5
GENERAL PRECAUTIONS 2- 11
PRECAUTIONS FOR OPERATION 2- 19
STARTING ENGINE 2- 19
OPERATION 2- 21
TRANSPORTATION 2- 26
BATTERY 2- 27
TOWING 2- 29
PRECAUTIONS FOR MAINTENANCE 2- 30
PRECAUTIONS WITH TIRES 2- 36
OPERATION 3- 1
GENERAL VIEW 3- 2
GENERAL VIEW OF MACHINE 3- 2
GENERAL VIEW OF CONTROLS AND GAUGES 3- 3
EXPLANATION OF COMPONENTS 3- 5
MACHINE MONITOR 3- 5
SWITCHES 3- 18
CONTROL LEVERS, PEDALS 3- 27
STEERING COLUMN TILT LEVER 3- 32
CAP WITH LOCK 3- 33
SAFETY BAR 3- 34
TOWING PIN 3- 34
GREASE PUMP 3- 35
BACKUP ALARM 3- 35
DUST INDICATOR 3- 35
CAB DOOR OPEN LOCK 3- 36
TOOL BOX 3- 36
OIL FILLER LOCATION 3- 36
FUSE 3- 36
SLOW-BLOW FUSE 3- 38
LUNCH BOX TRAY 3- 38
TAKING OFF POWER 3- 38
OPERATION 3- 39
CHECK BEFORE STARTING ENGINE, ADJUST 3- 39
STARTING ENGINE 3- 53
OPERATIONS AND CHECKS AFTER STARTING ENGINE 3- 55
.
FOREWORD
CONTENTS
1 - 11
STOPPING ENGINE 3- 57
CHECK AFTER STOPPING ENGINE 3- 57
MOVING MACHINE OFF (DIRECTIONAL, SPEED), STOPPING 3- 58
TURNING 3- 63
OPERATION OF WORK EQUIPMENT 3- 63
WORK POSSIBLE USING WHEEL DOZER 3- 66
PRECAUTIONS FOR OPERATION 3- 66
PARKING MACHINE 3- 68
CHECKS AFTER COMPLETION OF OPERATION 3- 69
LOCKING 3- 69
HANDLING THE TIRES 3- 70
TRANSPORTATION 3- 72
LOADING, UNLOADING WORK 3- 72
PRECAUTIONS FOR LOADING 3- 72
LIFTING MACHINE 3- 73
COLD WEATHER OPERATION 3- 74
PRECAUTIONS FOR LOW TEMPERATURE 3- 74
PRECAUTIONS AFTER COMPLETION OF WORK 3- 75
AFTER COLD WEATHER 3- 76
WARMING-UP OPERATION FOR STEERING HYDRAULIC CIRCUIT IN COLD WEATHER 3- 76
LONG-TERM STORAGE 3- 77
BEFORE STORAGE 3- 77
DURING STORAGE 3- 77
AFTER STORAGE 3- 77
TROUBLESHOOTING 3- 78
WHEN MACHINE RUNS OUT OF FUEL 3- 78
TOWING THE MACHINE 3- 79
IF BATTERY IS DISCHARGED 3- 82
OTHER TROUBLE 3- 85
MAINTENANCE 4- 1
GUIDES TO MAINTENANCE 4- 2
OUTLINES OF SERVICE 4- 4
HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC 4- 4
OUTLINE OF ELECTRIC SYSTEM 4- 6
WEAR PARTS 4- 7
WEAR PARTS LIST 4- 7
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE 4- 8
PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS 4- 8
STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS 4- 12
TORQUE LIST 4- 12
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS 4- 13
SAFETY CRITICAL PARTS 4- 13
MAINTENANCE SCHEDULE CHART 4- 14
MAINTENANCE SCHEDULE CHART 4- 14
SERVICE PROCEDURE 4- 16
INITIAL 250 HOURS SERVICE 4- 16
INITIAL 2000 HOURS SERVICE 4- 16
WHEN REQUIRED 4- 17
CHECK BEFORE STARTING 4- 33
EVERY 50 HOURS SERVICE 4- 34
.
FOREWORD
CONTENTS
1 - 12
EVERY 100 HOURS SERVICE 4- 35
EVERY 250 HOURS SERVICE 4- 37
EVERY 500 HOURS SERVICE 4- 44
EVERY 1000 HOURS SERVICE 4- 49
EVERY 2000 HOURS SERVICE 4- 53
EVERY 4000 HOURS SERVICE 4- 60
SPECIFICATIONS 5- 1
SPECIFICATIONS 5- 2
ATTACHMENTS, OPTIONS 6- 1
HANDLING AUTOMATIC SHIFT SYSTEM 6- 2
METHOD OF OPERATION 6- 2
PRECAUTION WHEN CHANGING DIRECTION 6- 3
HANDLING JOYSTICK STEERING SYSTEM 6- 4
STRUCTURE AND FUNCTION OF JOYSTICK STEERING 6- 4
OPERATION METHOD OF JOYSTICK STEERING SYSTEM 6- 8
PRECAUTIONS FOR STEERING WITH JOYSTICK 6- 10
ADJUSTMENT OF JOYSTICK CONSOLE 6- 11
HANDLING AIR-SUSPENSION SEAT 6- 12
SEAT ADJUSTMENT 6- 12
FAILURE DISPLAY ON MAIN MONITOR 6- 14
FAILURE CODE ON MAIN MONITOR 6- 14
FAILURE CODE ON AUTOMATIC SHIFT AND JOYSTICK STEERING SYSTEM 6- 14
CAR RADIO 6- 15
EXPLANATION OF COMPONENTS 6- 15
METHOD OF USE 6- 18
PRECAUTIONS WHEN USING 6- 20
AM/FM RADIO-CASSETTE STEREO 6- 21
EXPLANATION OF COMPONENTS 6- 21
METHOD OF OPERATION 6- 26
PRECAUTIONS FOR USE 6- 28
AIR CONDITIONER 6- 29
GENERAL LOCATIONS AND FUNCTION OF CONTROL PANEL 6- 29
METHOD OF OPERATION 6- 31
HANDLING TORQUE CONVERTER LOCK-UP 6- 33
GENERAL LOCATIONS 6- 33
METHOD OF OPERATION 6- 34
TRAVEL SPEED LIMIT FUNCTION 6- 34
INDEX 7- 1
.
2 - 1
.
SAFETY
SAFETY
SAFETY
2 - 2
SAFETY LABELS 2- 4
LOCATION OF SAFETY LABELS 2- 5
GENERAL PRECAUTIONS
SAFETY RULES 2- 11
IF ABNORMALITIES ARE FOUND 2- 11
CLOTHING AND PERSONAL PROTECTIVE ITEMS 2- 11
FIRE EXTINGUISHER AND FIRST AID KIT 2- 11
SAFETY FEATURES 2- 11
KEEP MACHINE CLEAN 2- 12
INSIDE OPERATOR'S COMPARTMENT 2- 12
ALWAYS APPLY LOCK WHEN LEAVING OPERATOR'S SEAT 2- 12
HANDRAILS AND STEPS 2- 13
MOUNTING AND DISMOUNTING 2- 13
NO PEOPLE ON ATTACHMENTS 2- 13
DO NOT GET CAUGHT IN ARTICULATED PORTION 2- 14
PREVENTION OF BURNS 2- 14
FIRE PREVENTION 2- 15
ACTION IF FIRE OCCURS 2- 15
WINDOW WASHER LIQUID 2- 16
PRECAUTIONS WHEN USING ROPS (Roll Over Protective Structure) 2- 16
PRECAUTIONS FOR ATTACHMENTS 2- 16
UNAUTHORIZED MODIFICATION 2- 16
SAFETY AT WORKSITE 2- 16
WORKING ON LOOSE GROUND 2- 17
DO NOT GO CLOSE TO HIGH-VOLTAGE CABLES 2- 17
ENSURE GOOD VISIBILITY 2- 18
PRECAUTIONS RELATED TO VENTILATION EXHAUST GAS 2- 18
CHECKING SIGNALMAN'S SIGNALS AND SIGNS 2- 18
EMERGENCY EXIT FROM OPERATOR'S CAB 2- 18
VENTILATION FOR ENCLOSED AREAS 2- 18
.
SAFETY
SAFETY
2 - 3
PRECAUTIONS FOR OPERATION 2- 19
BEFORE STARTING ENGINE 2- 19
CHECKS BEFORE STARTING ENGINE 2- 19
PRECAUTIONS WHEN STARTING 2- 19
PRECAUTIONS IN COLD AREAS 2- 20
OPERATION 2- 21
CHECKS BEFORE STARTING ENGINE 2- 21
PRECAUTIONS WHEN TRAVELING IN FORWARD OR REVERSE 2- 21
PRECAUTIONS WHEN TRAVELING 2- 22
TRAVELING ON SLOPES 2- 23
PROHIBITED OPERATIONS 2- 23
PRECAUTIONS WHEN OPERATING 2- 24
METHODS OF USING BRAKE 2- 24
OPERATE CAREFULLY ON SNOW 2- 24
PARKING MACHINE 2- 25
TRANSPORTATION 2- 26
LOADING AND UNLOADING 2- 26
SHIPPING 2- 26
BATTERY 2- 27
BATTERY HAZARD PREVENTION 2- 27
STARTING WITH BOOSTER CABLES 2- 28
TOWING 2- 29
PRECAUTIONS FOR MAINTENANCE 2- 30
WARNING TAG 2- 30
KEEP WORK PLACE CLEAN AND TIDY 2- 30
APPOINT LEADER WHEN WORKING WITH OTHERS 2- 30
MAINTENANCE WITH ENGINE RUNNING 2- 30
TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING 2- 32
PROPER TOOLS 2- 32
WORK EQUIPMENT SUPPORT 2- 33
ACCUMULATOR 2- 33
PERSONNEL 2- 33
ATTACHMENTS 2- 33
NOISE 2- 33
PRECAUTIONS WHEN USING HAMMER 2- 34
REPAIR WELDING 2- 34
REMOVING BATTERY TERMINAL 2- 34
PRECAUTIONS WITH HIGH-PRESSURE OIL 2- 34
HANDLING HIGH-PRESSURE HOSES 2- 35
WASTE MATERIALS 2- 35
MAINTENANCE OF AIR CONDITIONER 2- 35
COMPRESSED AIR 2- 35
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS 2- 35
PRECAUTIONS WITH TIRES 2- 36
HANDLING TIRES 2- 36
PRECAUTIONS WHEN STORING TIRE 2- 36
.
SAFETY
SAFETY LABELS
SAFETY LABELS
2 - 4
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.
.
SAFETY
SAFETY LABELS
LOCATION OF SAFETY LABELS
2 - 5
.
SAFETY
SAFETY LABELS
2 - 6
(1) Precautions for safety lock lever (2) Precautions for electric shock (09801-13001)
(3) Precautions when traveling in reverse (4) Do not enter
.
SAFETY
SAFETY LABELS
2 - 7
(5) Precautions for safety bar (6) Precautions before starting
(7) Precautions when coolant is at high temperature (8) Precautions when oil is at high temperature
.
SAFETY
SAFETY LABELS
2 - 8
(9) Precautions when handling battery cable (10) Precautions to prohibit going up on the hood
(09805-13000)
(11) Do not go under work equipment sign
(09807-C1683)
(12) Do not open when engine is running sign
(09667-03001)
.
SAFETY
SAFETY LABELS
2 - 9
(13) Do not come near machine sign (09812-03000) (14) Do not modify ROPS sign (09620-30201)
(15) High pressure warning
(Precautions when handling accumulator)
(09659-53000)
(16) Precautions when handling battery
(09664-30000)
.
SAFETY
SAFETY LABELS
2 - 10
(17) Precautions when handling battery
(This plate is stick on the machine by the battery
maker.)
(18) Prohibition of jump start (09842-A0481)
Parts numbers for the safety labels (1), (3), (6): 41E-93-21160.
Parts numbers for the safety labels (4), (5), (7) to (9): 421-93-21311.
.
SAFETY
GENERAL PRECAUTIONS
GENERAL PRECAUTIONS
SAFETY RULES
IF ABNORMALITIES ARE FOUND
CLOTHING AND PERSONAL PROTECTIVE ITEMS
FIRE EXTINGUISHER AND FIRST AID KIT
SAFETY FEATURES
2 - 11
Only trained and authorized personnel can operate and maintain the machine.
Follow all safety rules, precautions and instructions when operating or performing maintenance on the machine.
If you are under the influence of alcohol or medication, your ability to safely operate or repair your machine may
be severly impaired putting yourself and everyone else on your jobsite in danger.
When working with another operator or with a person on worksite traffic duty, be sure that all personnel
understand all hand signals that are to be used.
If you find any abnormality in the machine during operation or maintenance (noise, vibration, smell, incorrect
gauges, smoke, oil leakage, etc., or any abnormal display on the warning devices or monitor), report to the person
in charge and have the necessary action taken. Do not operate the machine until the abnormality has been
corrected.
Do not wear loose clothing and accessories. There is a hazard that they may catch on control levers or other
protruding parts.
If you have long hair and it hangs out from your hard hat, there
is a hazard that it may get caught up in the machine, so tie your
hair up and be careful not to let it get caught.
Always wear a hard hat and safety shoes. If the nature of the
work requires it, wear safety glasses, mask, gloves, ear plugs,
and safety belt when operating or maintaining the machine.
Check that all protective equipment functions properly before
using it.
Always follow the precautions below to prepare for action if any injury or fire should occur.
Be sure that fire extinguishers have been provided and read the
labels to ensure that you know how to use them in emergencies.
Carry out periodic inspection and maintenance to ensure that
the fire extinguisher can always be used.
Provide a first aid kit at the storage point. Carry out periodic
checks and add to the contents if necessary.
Be sure that all guards and covers are in their proper position. Have guards and covers repaired immediately if
they are damaged.
Understand the method of use of safety features and use them properly.
Never remove any safety features. Always keep them in good operating condition.
.
SAFETY
GENERAL PRECAUTIONS
KEEP MACHINE CLEAN
INSIDE OPERATOR'S COMPARTMENT
ALWAYS APPLY LOCK WHEN LEAVING OPERATOR'S SEAT
2 - 12
If water gets into the electrical system, there is a hazard that it will cause malfunctions or misoperation. Do not
use water or steam to wash the electrical system (sensors, connectors).
If inspection and maintenance is carried out when the machine
is still dirty with mud or oil, there is a hazard that you will slip and
fall, or that dirt or mud will get into your eyes. Always keep the
machine clean.
When entering the operator's compartment, always remove all mud and oil from the soles of your shoes.
If you operate the pedal with mud or oil affixed to your shoes, your foot may slip and this may cause a serious
accident.
Do not place parts and tools around the operator's seat.
Do not stick suction pads to the window glass. Suction pads act as a lens and may cause fire.
Do not use cellular telephones inside the operator's compartment when driving or operating the machine.
Never bring any dangerous objects such as flammable or explosive items into the operator's compartment.
Before standing up from the operator's seat to adjust the
operator's seat, always lower the work equipment, set safety
lock lever (1) to the LOCK position and parking brake switch (2)
to the ON position, then stop the engine.
If you accidentally touch the travel or swing lever when they are
not locked. The work equipment may suddenly move and cause
serious injury.
When leaving the machine, always lower the work equipment to
the ground, set safety lock lever (1) to the LOCK position and
parking brake switch (2) to the ON position, then stop the
engine. Lock all places and always take the key with you and
leave it in the specified location.
.
SAFETY
GENERAL PRECAUTIONS
HANDRAILS AND STEPS
MOUNTING AND DISMOUNTING
NO PEOPLE ON ATTACHMENTS
2 - 13
To prevent personal injury caused by slipping or falling off the machine, always do as follows.
Use the handrails and steps marked by arrows in the diagram on
the right when getting on or off the machine.
To ensure safety, always face the machine and maintain
three-point contact (both feet and one hand, or both hands and
one foot) with the handrails and steps to ensure that you support
yourself.
When entering the cab, stand on the top step before opening the
door.
Do not grip the control levers when getting on or off the machine.
Never climb on the engine hood or covers where there are no
non-slip pads.
Never move from the step at the rear of the machine or the step
at the side of the cab to stand on top of the tire.
Before getting on or off the machine, check the handrails and steps, and if there is any oil, grease, or mud on
them, wipe it off immediately. In addition, repair any damage and tighten any loose bolts.
Do not get on or off the machine while holding tools in your hand.
Never jump on or off the machine. Never get on or off a moving machine.
If the machine starts to move when there is no operator on the machine, do not jump on to the machine and try
to stop it.
Never let anyone ride on the work equipment, or other attachments. There is ahazard of falling and suffering serious
injury.
.
SAFETY
GENERAL PRECAUTIONS
DO NOT GET CAUGHT IN ARTICULATED PORTION
PREVENTION OF BURNS
Hot
coolant
Hot
oil
2 - 14
If the clearance at the articulating portion changes, it will lead to
serious personal injury.
Do not allow anyone to come inside the articulation range.
The clearance in the area around the work equipment changes
according to the movement of the link. If you get caught, it will
lead to serious injury. Do not allow anyone near any of the
rotating or telescoping parts.
To prevent burns from hot water or steam spurting out when
checking or draining the coolant, wait for the water to cool to a
temperature where it is possible to touch the radiator cap by
hand before starting the operation. Even when the coolant has
cooled down, loosen the cap slowly to relieve the pressure
inside the radiator before removing the cap.
To prevent burns from hot oil spurting out when checking or
draining the oil, wait for the oil to cool to at temperature where
it is possible to touch the cap or plug by hand before starting the
operation. Even when the oil has cooled down, loosen the cap
or plug slowly to relieve the internal pressure before removing
the cap or plug.
.
SAFETY
GENERAL PRECAUTIONS
FIRE PREVENTION
Fire
caused
by
fueloroil
Fire
caused
by
accumulation
of
flammable
material.
Fire
coming
from
electric
wiring
Fire
coming
from
hydraulic
line
Explosion
caused
by
lighting
equipment
ACTION IF FIRE OCCURS
2 - 15
Fuel, oil, antifreeze, and window washer liquid are particularly
flammable and can be hazardous. To prevent fire, always
observe the following:
Do not smoke or use any flame near fuel or oil.
Stop the engine before refueling.
Do not leave the machine while adding fuel or oil.
Tighten all fuel and oil caps securely.
Do not spill fuel on overheated surfaces or on parts of the
electrical system.
Use well-ventilated areas for adding or storing oil and fuel.
Keep oil and fuel in the determined place and do not allow
unauthorized persons to enter.
After adding fuel or oil, wipe up any spilled fuel or oil.
When carrying out grinding or welding work on the chassis,
move any flammable materials to a safe place before
starting.
When washing parts with oil, use a non-flammable oil. Diesel
oil and gasoline may catch fire, so do not use them.
Put greasy rags and other flammable materials into a safe
container to maintain safety at the work place.
Do not weld or use a cutting torch to cut any pipes or tubes
that contain flammable liquids.
Remove any dry leaves, chips, pieces of paper, dust, or any other flammable materials accumulated or affixed
around the engine, exhaust manifold, muffler, or battery, or inside the undercovers.
Short circuits in the electrical system can cause fire.
Always keep electric wiring connections clean and securely tightened.
Check the wiring every day for looseness or damage. Tighten any loose connectors or wiring clamps. Repair
or replace any damaged wiring.
Check that all the hose and tube clamps, guards, and cushions are securely fixed in position.
If they are loose, they may vibrate during operation and rub against other parts. This may lead to damage to the
hoses, and cause high-pressure oil to spurt out, leading to fire damage or serious injury.
When checking fuel, oil, battery electrolyte, window washer fluid, or coolant, always use lighting with
anti-explosion specifications. If such lighting equipment is not used, there is danger of explosion that may
cause serious injury.
When taking the electrical power for the lighting from the machine itself, follow the instructions in this manual.
If a fire occurs, escape from the machine as follows.
Turn the start switch OFF to stop the engine.
Use the handrails and steps to get off the machine.
.
SAFETY
GENERAL PRECAUTIONS
WINDOW WASHER LIQUID
PRECAUTIONS WHEN USING ROPS (Roll Over Protective Structure)
PRECAUTIONS FOR ATTACHMENTS
UNAUTHORIZED MODIFICATION
SAFETY AT WORKSITE
2 - 16
Use an ethyl alcohol base washer liquid.
Methyl alcohol base washer liquid may irritate your eyes, so do not use it.
Install ROPS when working in places where there is danger of
falling rocks, such as in mines and quarries, or in places where
there is danger of rolling over.
If ROPS is installed, do not remove it when operating the
machine.
ROPS is for protecting the operator when the machine is rolled
over. It bears the load when the machine is rolled over and it
absorbs the shock energy as well.
If the ROPS needs repair, or is altered, its strength can
decrease. Consult with your Komatsu distributor when and if
alteration or repair are necessary.
If ROPS is damaged or deformed by falling objects or by rolling
over, its strength will be reduced and it will not be able to fulfill
its function properly. In such cases, always Komatsu contact
your distributor for advice of the method of repair.
Even if ROPS is installed, always fasten your seat belt properly
when operating the machine. If you do not use your fasten your
seat belt properly, it cannot display its effect.
When installing optional parts or attachments, there may be problems with safety or legal restrictions. Therefore
contact your Komatsu distributor for advice.
Any injuries, accidents, or product failures resulting from the use of unauthorized attachments or parts will not be
the responsibility of Komatsu.
When installing and using optional attachments, read the instruction manual for the attachment, and the general
information related to attachments in this manual.
Any modification made without authorization from Komatsu can create hazards. Before making a modification,
consult your Komatsu distributor.
Komatsu will not be responsible for any injuries, accidents, product failures or other property damages resulting
from modifications made without authorization from Komatsu.
Before starting operations, thoroughly check the area for any unusual conditions that could be dangerous.
When carrying out operations near combustible materials such as thatched roofs, dry leaves or dry grass, there
is a hazard of fire, so be careful when operating.
Check the terrain and condition of the ground at the worksite, and determine the safest method of operation. Do
not carry out operations at places where there is a hazard of landslides or falling rocks.
.
SAFETY
GENERAL PRECAUTIONS
SAFETY
GENERAL PRECAUTIONS
WORKING ON LOOSE GROUND
DO NOT GO CLOSE TO HIGH-VOLTAGE CABLES
2 - 17
If water lines, gas lines, or high-voltage electrical lines may be
buried under the worksite, contact each utility and identify their
locations. Be careful not to sever or damage any of these lines.
Take necessary measures to prevent any unauthorized person
from entering the operating area.
In particular, if you need to operate on a road, protect pedestrian
and cars by designating a person for worksite traffic duty or by
installing fences around the worksite.
When traveling or operating in shallow water or on soft ground,
check the shape and condition of the bedrock, and the depth
and speed of flow of the water before starting operations.
In order that travel operations can be carried out safely, always keep the roads on the jobsite properly maintained.
Avoid traveling or operating your machine too close to the edge of cliffs, overhangs, and deep ditches. The
ground may be weak in such areas. If the ground should collapse under the weight or vibration of the machine,
there is a hazard that the machine may fall or tip over. Remember that the soil after heavy rain or blasting or after
earthquakes is weak in these areas.
When working on embankments or near excavated ditches, there is a hazard that the weight and vibration of the
machine will cause the soil to collapse. Before starting operations, take steps to ensure that the ground is safe
and to prevent the machine from rolling over or falling.
Do not travel or operate the machine near electric cables. There is
a hazard of electric shock, which may cause serious injury or
property damage. On jobsites where the machine may go close to
electric cables, always do as follows.
Before starting work near electric cables, inform the local power
company of the work to be performed, and ask them to take the
necessary action.
Even going close to high-voltage cables can cause electric
shock, which may cause serious burns or even death. Always
maintain a safe distance (see the table on the right) between the
machine and the electric cable. Check with the local power
company about safe operating procedure before starting
operations.
To prepare for any possible emergencies, wear rubber shoes
and gloves. Lay a rubber sheet on top of the seat, and be careful
not to touch the chassis with any exposed part of your body.
Use a signalman to give warning if the machine approaches too
close to the electric cables.
When carrying out operations near high voltage cables, do not
let anyone come close to the machine.
If the machine should come too close or touch the electric cable, to prevent electric shock, the operator should
not leave the operator's compartment until it has been confirmed that the electricity has been shut off.
Also, do not let anyone come close to the machine.
Voltage of Cables Safety Distance
100 V - 200 V Over 2 m (7ft)
6,600 V Over 2 m (7ft)
22,000 V Over 3 m (10 ft)
66,000 V Over 4 m (14 ft)
154,000 V Over 5 m (17 ft)
187,000 V Over 6 m (20 ft)
275,000 V Over 7 m (23 ft)
500,000 V Over 11 m (36 ft)
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