EBOOK - KOMATSU PW140-7 SHOP MANUAL


Precautions during work.

1. When removing 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 circuits, first remove the pressure completely from the circuit.

2. The water and oil in the circuits are hot when the engine is stopped, so be careful not to get burned. Wait for the oil and water to cool before carrying out any work on the oil or water circuits.
3. Before starting work, remove the leads from the battery. ALWAYS remove the lead from the negative (-) terminal first.
4. When raising heavy
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CONTENTS

00 FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-1
01 GENERAL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
10 STRUCTURE, FUNCTION AND MAINTENANCE
STANDARD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
20 TESTING AND ADJUSTING. . . . . . . . . . . . . . . . . . . . . . . . 20-1
20 TESTING AND ADJUSTING. . . . . . . . . . . . . . . . . . . . . .  20-101
20 TESTING AND ADJUSTING
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20-201
20 TESTING AND ADJUSTING
Troubleshooting when failure code is indicated . . . .  20-301
20 TESTING AND ADJUSTING
Troubleshooting of electrical system (E-Mode). . . . .  20-501
20 TESTING AND ADJUSTING
Troubleshooting of electrical system
(Error Checking of items without Monitor codes). . .  20-601
20 TESTING AND ADJUSTING
Troubleshooting of hydraulic and mechanical system
(H-Mode). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20-701
30 DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . 30-1
90 OTHER  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-1

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