Komatsu ecot3 WA430-6 Manual

WHEEL LOADER
TEN00121-05
WA430
-6
SERIAL NUMBERS
65001
and up
Komatsu has Operation & Maintenance Manuals
written in some other languages. If a foreign language
manual is necessary, contact your local distributor for
availability.
NOTICE
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.
WARNING

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FOREWORD
BEFORE READING THIS MANUAL
BEFORE READING THIS MANUAL
This manual gives details of the operation and methods of inspection and maintenance for this machine that must
be obeyed in order to use the machine safely. Most accidents are caused by the failure to follow fundamental safety
rules for the operation and maintenance of machines.
Read, understand and follow all precautions and warnings in this manual and on the machine before performing
operation and maintenance. Failure to do so may result in serious injury or death.
Komatsu cannot predict every circumstance that might involve a potential hazard when the machine is used.
Therefore, the safety messages in this manual and on the machine may not include all possible safety precautions.
If you carry out any operation, inspection, or maintenance under conditions that are not described in this manual,
understand that it is your responsibility to take the necessary precautions to ensure safety. In no event should you
or others engage in the prohibited uses or actions described in this manual. Improper operation and maintenance
of the machine can be hazardous and could result in serious injury or death.
If you sell the machine, be sure to give this manual to the new owner together with the machine.
Always keep this Operation and Maintenance Manual in the
location shown on the right so that all relevant personnel can read
it at any time.
Storage location for the Operation and Maintenance Manual:
Pocket (1) at rear of operator's seat
If this manual is lost or damaged, contact your distributor immediately to arrange for its replacement. For details
regarding the machine serial No. you will need to provide your Komatsu distributor, see "TABLE TO ENTER SERIAL
NO. AND DISTRIBUTOR (PAGE 1-7)".
This manual uses the international units (SI) for units of measurement. For reference, units that have been used in
the past are given in ( ).
The explanations, values, and illustrations in this manual have been prepared based on the latest information
available as of the date of its publication. Continuing improvements in the design of this machine may lead to
additional changes that are not reflected in this manual. Consult Komatsu or your Komatsu distributor for the latest
available information concerning your machine or with questions regarding information contained in this manual.
The numbers in circles in the illustrations correspond to the numbers in ( ) in the text.
(For example:1→(1))
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, 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.
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FOREWORD
SAFETY INFORMATION
SAFETY INFORMATION
To enable you to use the machine safely, and to prevent injury to operators, service personnel or bystanders, the
precautions and warnings included in this manual and the safety signs attached to the machine must always be
followed.
To identify important safety messages in the manual and on the machine labels, the following signal words are used.
The "Safety Alert Symbol" identifies important safety messages on machines, in manuals, and elsewhere. When
you see this symbol, be alert to the risk of personal injury or death. Follow the instructions in the safety message.
This signal word indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
This signal word indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
This signal word indicates a potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury.
The following signal words are used to alert you to information that must be followed to avoid damage to the
machine.
This precaution is given where the machine may be damaged or the service life reduced if
the precaution is not followed.
This word is used for information that is useful to know.
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FOREWORD
INTRODUCTION
INTRODUCTION
USE OF MACHINE
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 (PAGE 3-140)".
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FOREWORD
INTRODUCTION
FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE
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)
(2)
(3)
(4)
(5)
(6)
Bucket
Bell crank
Bucket cylinder
Turn signal lamp
Mirror
ROPS cab
(7)
(8)
(9)
(10)
(11)
Rear wheel
Step
Front wheel
Lift cylinder
Lift arm
(A)
(B)
Front
Rear
(C)
(D)
Left
Right
VISIBILITY FROM OPERATOR'S SEAT
This machine complies with the visibility standard (ISO 5006).
This machine maintains a close visibility of a height of 1.5 m at a point 1 m away from the outside surface of the
machine, and a visibility for a circumference of 12 m.
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FOREWORD
NECESSARY INFORMATION
NECESSARY INFORMATION
When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following
items.
PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE
On the center right of the front frame.
The design of the nameplate differs according to the territory.
ENGINE SERIAL NO. PLATE
This is at the top at the rear of the engine on the right side of the machine.
EPA: Environmental Protection Agency, U.S.A.
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FOREWORD
NECESSARY INFORMATION
POSITION OF SERVICE METER
It is at the center bottom of the machine monitor.
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR
Machine serial No.
Engine serial No.
Product identification number (PIN)
Distributor name
Address
Service Personnel
Phone/Fax
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FOREWORD
CONTENTS
CONTENTS
FOREWORD 1- 1
BEFORE READING THIS MANUAL 1- 2
SAFETY INFORMATION 1- 3
INTRODUCTION 1- 4
USE OF MACHINE 1- 4
FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE 1- 5
VISIBILITY FROM OPERATOR'S SEAT 1- 5
NECESSARY INFORMATION 1- 6
PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE 1- 6
ENGINE SERIAL NO. PLATE 1- 6
POSITION OF SERVICE METER 1- 7
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR 1- 7
SAFETY 2- 1
SAFETY 2- 2
SAFETY LABELS 2- 5
LOCATION OF SAFETY LABELS 2- 5
SAFETY LABELS 2- 6
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE 2- 13
PRECAUTIONS BEFORE STARTING OPERATION 2- 13
PREPARATIONS FOR SAFE OPERATION 2- 13
FIRE PREVENTION 2- 15
PRECAUTIONS WHEN GETTING ON OR OFF MACHINE 2- 16
DO NOT GET CAUGHT IN ARTICULATING PORTION 2- 19
PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES 2- 19
UNAUTHORIZED MODIFICATION 2- 19
PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS 2- 20
PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING 2- 20
PRECAUTIONS FOR OPERATION 2- 21
PRECAUTIONS FOR JOBSITE 2- 21
STARTING ENGINE 2- 23
OPERATION 2- 25
TRANSPORTATION 2- 32
TOWING 2- 33
PRECAUTIONS FOR MAINTENANCE 2- 34
PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE 2- 34
PRECAUTIONS FOR INSPECTION AND MAINTENANCE 2- 39
TIRES 2- 44
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- 6
MACHINE MONITOR 3- 6
SWITCHES 3- 39
CONTROL LEVERS, PEDALS 3- 53
STEERING TILT LOCK LEVER 3- 58
CAP WITH LOCK 3- 58
FRAME LOCK BAR 3- 60
TOWING PIN 3- 60
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FOREWORD
CONTENTS
GREASE PUMP 3- 61
OPENING, CLOSING CAB DOORS, WINDOWS 3- 62
BACKUP ALARM 3- 66
FUSE 3- 67
SLOW BLOW FUSE 3- 68
POWER OUTLET 3- 69
AM/FM RADIO 3- 70
AM/FM RADIO-CASSETTE STEREO 3- 76
HANDLING AUTO AIR CONDITIONER 3- 84
AIR CONDITIONER 3- 91
HANDLING CAB WIPER 3- 98
OPERATION 3- 99
CHECK BEFORE STARTING ENGINE, ADJUST 3- 99
STARTING ENGINE 3-118
CHECKS AFTER STARTING ENGINE 3-122
OPERATIONS AND CHECKS AFTER STARTING ENGINE 3-123
STOPPING ENGINE 3-125
MOVING THE MACHINE (DIRECTIONAL, SPEED), STOPPING THE MACHINE 3-126
TURNING 3-135
OPERATION OF WORK EQUIPMENT 3-138
WORK POSSIBLE USING WHEEL LOADER 3-140
PRECAUTIONS FOR OPERATION 3-147
ADJUSTING WORK EQUIPMENT POSTURE 3-149
PARKING MACHINE 3-151
CHECKS AFTER COMPLETION OF OPERATION 3-153
LOCKING 3-154
HANDLING THE TIRES 3-155
TRANSPORTATION 3-157
TRANSPORTATION PROCEDURE 3-157
LOADING, UNLOADING WORK WITH TRAILERS 3-157
LIFTING MACHINE 3-161
COLD WEATHER OPERATION 3-163
PRECAUTIONS FOR LOW TEMPERATURE 3-163
PRECAUTIONS AFTER COMPLETION OF WORK 3-164
AFTER COLD WEATHER 3-164
LONG-TERM STORAGE 3-165
BEFORE STORAGE 3-165
DURING STORAGE 3-165
AFTER STORAGE 3-165
TROUBLESHOOTING 3-166
WHEN MACHINE RUNS OUT OF FUEL 3-166
METHOD OF TOWING MACHINE 3-166
IF BATTERY IS DISCHARGED 3-171
OTHER TROUBLE 3-174
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- 7
WEAR PARTS 4- 8
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FOREWORD
CONTENTS
WEAR PARTS LIST 4- 8
RECOMMENDED FUEL, COOLANT, AND LUBRICANT 4- 9
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE 4- 10
RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN
KOMATSU GENUINE OIL 4- 11
STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS 4- 12
TORQUE LIST 4- 12
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS 4- 13
MAINTENANCE SCHEDULE CHART 4- 15
MAINTENANCE SCHEDULE CHART 4- 15
SERVICE PROCEDURE 4- 17
INITIAL 250 HOURS SERVICE 4- 17
INITIAL 1000 HOURS SERVICE 4- 17
WHEN REQUIRED 4- 18
CHECK BEFORE STARTING 4- 39
EVERY 50 HOURS SERVICE 4- 40
EVERY 100 HOURS SERVICE 4- 41
EVERY 250 HOURS SERVICE 4- 43
EVERY 500 HOURS SERVICE 4- 49
EVERY 1000 HOURS SERVICE 4- 53
EVERY 2000 HOURS SERVICE 4- 58
EVERY 4000 HOURS SERVICE 4- 64
EVERY 8000 HOURS SERVICE 4- 67
SPECIFICATIONS 5- 1
SPECIFICATIONS 5- 2
ATTACHMENTS, OPTIONS 6- 1
SELECTING BUCKET AND TIRES 6- 2
HANDLING TORQUE CONVERTER LOCK-UP 6- 3
GENERAL LOCATIONS 6- 3
METHOD OF OPERATION 6- 5
WARNING/LIMIT FUNCTIONS FOR TRAVEL SPEED 6- 6
HANDLING JOYSTICK STEERING SYSTEM 6- 7
EXPLANATION OF COMPONENTS 6- 7
STRUCTURE AND FUNCTION OF JOYSTICK STEERING 6- 11
GETTING IN OR OUT OF OPERATOR'S CAB 6- 12
SEAT ADJUSTMENT 6- 13
ADJUSTMENT OF JOYSTICK CONSOLE 6- 15
OPERATION USING JOYSTICK LEVER AND OPERATION USING STEERING WHEEL 6- 16
PRECAUTIONS FOR STEERING WITH JOYSTICK 6- 17
OPERATION METHOD OF JOYSTICK STEERING SYSTEM 6- 17
HANDLING MULTI FUNCTION MONO-LEVER 6- 20
EXPLANATION OF COMPONENTS 6- 20
USING FNR SWITCH TO CHANGE BETWEEN FORWARD AND REVERSE 6- 25
HANDLING MACHINES EQUIPPED WITH KOMTRAX 6- 27
BASIC PRECAUTIONS 6- 27
INDEX 7- 1
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SAFETY
SAFETY
SAFETY
SAFETY LABELS 2- 5
LOCATION OF SAFETY LABELS 2- 5
SAFETY LABELS 2- 6
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE 2- 13
PRECAUTIONS BEFORE STARTING OPERATION 2- 13
ENSURING SAFE OPERATION 2- 13
UNDERSTANDING THE MACHINE 2- 13
PREPARATIONS FOR SAFE OPERATION 2- 13
PRECAUTIONS REGARDING SAFETY-RELATED EQUIPMENT 2- 13
INSPECTING MACHINE 2- 13
WEAR WELL-FITTING CLOTHES AND PROTECTIVE EQUIPMENT 2- 13
KEEP MACHINE CLEAN 2- 14
PRECAUTIONS INSIDE OPERATOR'S COMPARTMENT 2- 14
PROVIDE FIRE EXTINGUISHER AND FIRST AID KIT 2- 14
IF ANY PROBLEM IS FOUND 2- 14
FIRE PREVENTION 2- 15
ACTION IF FIRE OCCURS 2- 15
PRECAUTIONS TO PREVENT FIRE 2- 15
PRECAUTIONS WHEN GETTING ON OR OFF MACHINE 2- 16
USE HANDRAILS AND STEPS WHEN GETTING ON OR OFF MACHINE 2- 16
NO JUMPING ON OR OFF MACHINE 2- 16
NO PEOPLE ON ATTACHMENTS 2- 16
PRECAUTIONS WHEN STANDING UP FROM OPERATOR'S SEAT 2- 17
PRECAUTIONS WHEN LEAVING MACHINE 2- 18
EMERGENCY EXIT FROM OPERATOR'S CAB 2- 18
PRECAUTIONS WHEN CLEANING CAB GLASS 2- 18
DO NOT GET CAUGHT IN ARTICULATING PORTION 2- 19
PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES 2- 19
UNAUTHORIZED MODIFICATION 2- 19
PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS 2- 20
PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING 2- 20
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SAFETY
SAFETY
PRECAUTIONS FOR OPERATION 2- 21
PRECAUTIONS FOR JOBSITE 2- 21
INVESTIGATE AND CONFIRM JOBSITE CONDITIONS 2- 21
WORKING ON LOOSE GROUND 2- 21
DO NOT GO CLOSE TO HIGH-VOLTAGE CABLES 2- 22
ENSURE GOOD VISIBILITY 2- 22
CHECKING SIGNS AND SIGNALMAN'S SIGNALS 2- 22
BEWARE OF ASBESTOS DUST 2- 23
STARTING ENGINE 2- 23
USE WARNING TAGS 2- 23
INSPECTION AND MAINTENANCE BEFORE STARTING ENGINE 2- 24
PRECAUTIONS WHEN STARTING ENGINE 2- 24
PRECAUTIONS IN COLD AREAS 2- 24
STARTING WITH BOOSTER CABLES 2- 25
OPERATION 2- 25
CHECKS BEFORE OPERATION 2- 25
PRECAUTIONS WHEN TRAVELING IN FORWARD OR REVERSE 2- 26
PRECAUTIONS WHEN TRAVELING 2- 27
TRAVELING ON SLOPES 2- 28
METHOD OF USING BRAKES 2- 28
PRECAUTIONS WHEN OPERATING 2- 29
PROHIBITED OPERATIONS 2- 30
TRAVELING ON SNOW-COVERED OR FROZEN SURFACES 2- 30
PARKING MACHINE 2- 31
TRANSPORTATION 2- 32
LOADING AND UNLOADING 2- 32
TOWING 2- 33
PRECAUTIONS WHEN TOWING 2- 33
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SAFETY
SAFETY
PRECAUTIONS FOR MAINTENANCE 2- 34
PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE 2- 34
DISPLAY WARNING TAG DURING INSPECTION AND MAINTENANCE 2- 34
KEEP WORKPLACE CLEAN AND TIDY 2- 34
SELECT SUITABLE PLACE FOR INSPECTION AND MAINTENANCE 2- 34
ONLY AUTHORIZED PERSONNEL 2- 34
APPOINT LEADER WHEN WORKING WITH OTHERS 2- 34
STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE 2- 35
TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING 2- 37
TURNING E.C.S.S. SWITCH OFF BEFORE CARRYING OUT INSPECTION AND MAINTENANCE 2- 37
INSTALLING, REMOVING, OR STORING ATTACHMENTS 2- 38
PRECAUTIONS WHEN WORKING AT HIGH PLACES 2- 38
PRECAUTIONS WHEN WORKING UNDER MACHINE OR WORK EQUIPMENT 2- 38
PROPER TOOLS 2- 38
PRECAUTIONS FOR INSPECTION AND MAINTENANCE 2- 39
PRECAUTIONS WHEN WELDING 2- 39
HANDLING BATTERY 2- 39
PRECAUTIONS WHEN USING HAMMER 2- 40
PRECAUTIONS WITH HIGH-TEMPERATURE COOLANT 2- 40
PRECAUTIONS WITH HIGH-TEMPERATURE OIL 2- 40
PRECAUTIONS WITH HIGH-PRESSURE OIL 2- 41
PRECAUTIONS WITH HIGH-PRESSURE FUEL 2- 41
HANDLING HIGH-PRESSURE HOSES AND PIPING 2- 41
NOISE 2- 41
HANDLING ACCUMULATOR AND GAS SPRING 2- 42
PRECAUTIONS WITH COMPRESSED AIR 2- 42
MAINTENANCE OF AIR CONDITIONER 2- 42
DISPOSING OF WASTE MATERIALS 2- 42
METHOD OF SELECTING WINDOW WASHER FLUID 2- 42
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS 2- 43
TIRES 2- 44
HANDLING TIRES 2- 44
PRECAUTIONS WHEN STORING TIRES 2- 45
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SAFETY
SAFETY LABELS
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.
LOCATION OF SAFETY LABELS
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SAFETY
SAFETY LABELS
SAFETY LABELS
(1) Caution before starting (09651-03001)
(2) Caution for leaving the operator's seat (09654-03001)
(3) Caution when traveling in reverse
Please request part No. 423-93-41150 for this safety label.
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SAFETY
SAFETY LABELS
SAFETY
SAFETY LABELS
(4) Caution for going close to electric cables (09801-13001)
(5) Caution to keep away from movable parts (09162-23000)
(6) Caution for frame lock bar (09161-23000)
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SAFETY
SAFETY LABELS
SAFETY
SAFETY LABELS
(7) Caution when canceling parking brake emergency
(423-93-41311)
(8) Warning for hot cooling water (09668-03001)
(9) Caution when oil is at high temperature (09653-03001)
(10) Caution when handling battery cable (09808-03000)
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SAFETY
SAFETY LABELS
SAFETY
SAFETY LABELS
(11) Caution when handling battery (09664-30010)
(12) Explosion hazard (09659-53000)
(13) Do not climb on fender (09805-03000)
(Machines with equipped with rear full fender)
(14) "Do not open when engine is running" sign
(09667-03001)
(15) "Do not come near machine" sign (09812-13000)
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