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FOREWORD

SAFETY

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WA500-3H

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SAFETY

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SAFETY NOTICE

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GENERAL PRECAUTIONS

Mistakes in operation are extremely dangerous. Read the OPERATION & MAINTENANCE MANUAL carefully BEFORE
operating the machine.

1. Before carrying out any greasing or repairs, read all the precautions given on the decals which are fixed to the machine.

2. When carrying out any operation, always wear safety shoes and helmet. Do not wear loose work clothes, or clothes with

buttons missing.

Always wear safety glasses when hitting parts with a hammer.

Always wear safety glasses when grinding parts with a grinder, etc.

3. If welding repairs are needed, always have a trained, experienced welder carry out the work. When carrying out welding

work, always wear welding gloves, apron, glasses, cap and other clothes suited for welding work.

4. When carrying out any operation with two or more workers, always agree on the operating procedure before starting.

Always inform your fellow workers before starting any step of the operation. Before starting work, hang UNDER
REPAIR signs on the controls in the operator's compartment.

5. Keep all tools in good condition and learn the correct way to use them.

6. Decide a place in the repair workshop to keep tools and removed parts. Always keep the tools and parts in their correct

places. Always keep the work area clean and make sure that there is no dirt or oil on the floor. Smoke only in the areas
provided for smoking. Never smoke while working.

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PREPARATIONS FOR WORK

1. Before adding oil or making repairs, park the machine on hard, level ground, and block the wheels or tracks to prevent the

machine from moving.

2. Before starting work, lower blade, ripper, bucket or any other work equipment to the ground. If this is not possible, insert

the safety pin or use blocks to prevent the work equipment from falling. In addition, be sure to lock all the control levers
and hang warning signs on them.

3. When disassembling or assembling, support the machine with blocks, jacks or stands before starting work.

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IMPORTANT SAFETY NOTICE

Proper service and repair is extremely important for the safe operation of your machine. The service and repair techniques
recommended and described in this manual are both effective and safe methods of operation. Some of these operations
require the use of tools specially designed for the purpose.

To prevent injury to workers, the symbols 

 and 

 are used to mark safety precautions in this manual. The cautions accom-

panying these symbols should always be followed carefully. If any dangerous situation arises or may possibly arise, first con-
sider safety, and take the necessary actions to deal with the situation.

Summary of Contents for WA500-3H

Page 1: ...Please consult your local KOMATSU distributor for those items you may require Materials and specifications are subject to change without notice l WA500 3H mount the SA6D140E 3 engine For details of t...

Page 2: ...ke changes or add 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 periodic revi...

Page 3: ...D CONTENTS WA500 3H 00 3 12 00CONTENTS 01 GENERAL 01 1 10 STRUCTURE AND FUNCTION 10 1 20 TESTING ADJUSTING AND TROUBLESHOOTING 20 1 30 DISASSEMBLY AND ASSEMBLY 30 1 40 MAINTENANCE STANDARD 40 1 90 OTH...

Page 4: ...removed parts Always keep the tools and parts in their correct places Always keep the work area clean and make sure that there is no dirt or oil on the floor Smoke only in the areas provided for smoki...

Page 5: ...g the oil filler cap drain plug or hydraulic pressure measuring plugs loosen them slowly to prevent the oil from spurting out Before disconnecting or removing components of the oil water or air circui...

Page 6: ...e only the minimum of gasoline when washing electrical parts 9 Be sure to assemble all parts again in their original places Replace any damaged part with new parts When installing hoses and wires be s...

Page 7: ...cation charts STRUCTURE AND FUNCTION This section explains the structure and function of each component It serves not only to give an understanding of the structure but also serves as reference materi...

Page 8: ...ON AND UPDATING Any additions amendments or other changes will be sent to your distributors Get the most up to date information before you start any work 00FILING METHOD 1 See the page number on the b...

Page 9: ...s or other precautions for preserving standards are necessary when performing the work Weight Weight of parts or systems Cau tion necessary when selecting hoisting wire or when working posture is impo...

Page 10: ...he weight of parts to be hoisted referring to the table below The allowable load value is estimated to be 1 6 or 1 7 of the breaking strength of the rope used WARNING Heavy parts 25 kg or more must be...

Page 11: ...d to each rope will increase with the hanging angles The table below shows the variation of allowable load kg when hoisting is made with two ropes each of which is allowed to sling up to 1000 kg verti...

Page 12: ...9 9040 250 g Polyethylene container Used as sealant for machined holes Holtz MH 705 790 126 9120 75 g Tube Used as heat resisting sealant for repairing engine Three bond 1735 179 129 9140 2 g Polyethy...

Page 13: ...type Used as sealant for flywheel housing intake manifold oil pan thermostat housing etc Three bond 1211 790 129 9090 100 g Tube Used as heat resisting sealant for repairing engines Molybdenum disulph...

Page 14: ...ss flats mm mm Nm kgm 6 10 13 2 1 4 1 35 0 15 8 13 31 4 2 9 3 20 0 3 10 17 65 7 6 8 6 70 0 7 12 19 112 9 8 11 5 1 0 14 22 177 19 18 2 0 16 24 279 29 28 5 3 18 27 383 39 39 4 20 30 549 58 56 6 22 32 74...

Page 15: ...kgm 02 14 19 24 5 4 9 2 5 0 5 03 18 24 49 19 6 5 2 04 22 27 78 5 19 6 8 2 05 24 32 137 3 29 4 14 3 06 30 36 176 5 29 4 18 3 10 33 41 196 1 49 20 5 12 36 46 245 2 49 25 5 14 42 55 294 2 49 30 5 Thread...

Page 16: ...c 5 65 0 32 5 23 4 6 37 Charging and signal 15 84 0 45 13 36 7 0 59 Starting Glow plug 40 85 0 80 42 73 11 4 135 Starting 60 127 0 80 63 84 13 6 178 Starting 100 217 0 80 109 1 17 6 230 Starting Prior...

Page 17: ...the table so divide by 10 move the decimal one place to the left to convert it to 55 mm B Carry out the same procedure as above to convert 55 mm to 2 165 inches C The original value 550 mm was divided...

Page 18: ...Thank you very much for your reading Please click here and go back to the website Then you can download the complete manual instantly No waiting...

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