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Doosan G643 User Manual

Doosan G643
260 pages
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Service Manual
G643E LP Engine
G643LP Engine
G35S-5, G40S-5, G45S-5, G50C-5, G55C-5
GC35S-5, GC40S-5, GC45S-5, GC50C-5, GC55C-5
G40SC-5, G45SC-5, G50SC-5, G55SC-5
G50S-5, G60S-5, G70S-5
SB4263E01
Dec. 2008

Table of Contents

Questions and Answers:

Doosan G643 Specifications

General IconGeneral
Number of Cylinders6
Compression Ratio17.5 : 1
Fuel TypeDiesel
AspirationTurbocharged
Fuel SystemDirect Injection
Engine ModelDoosan G643

Summary

Chapter 1. GENERAL INFORMATION

Precautions before Service

Important guidelines and warnings to observe before performing service on the engine.

Chapter 2. RECOMMENDED MAINTENANCE

Chapter 3. ENGINE MECHANICAL SYSTEM

Disassembly of Engine

General procedures and precautions for engine disassembly, tools, and cleaning.

Chapter 4. ENGINE ELECTRICAL SYSTEM

Charging System

General description of the charging system and alternator operation.

Chapter 5. ENGINE MANAGEMENT SYSTEM (EMS)

Chapter 6. LPG FUEL DELIVERY SYSTEM

Tests and Adjustments

Tests and adjustments for the LPG fuel system components.

Chapter 7. BASIC TROUBLESHOOTING

Engine Cranking but Will Not Start / Difficult to Start

Troubleshooting steps for engines that crank but do not start or start and stall.

Chapter 8. ADVANCED DIAGNOSTICS

Appendix

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