DAEWOO G430E G643E TIER II LP ENGINE LIFT TRUCKS SERVICE MANUAL

DAEWOO G430E G643E TIER II LP ENGINE LIFT TRUCKS SERVICE MANUAL
LANGUAGE: ENGLISH
FORMAT: PDF
PAGES: 99
FILE SIZE: 5.07MB

MODEL COVERED:

G430E/G643E Tier LP Engine

Lift Trucks

G20P-3, G25P-3, G30P-3, G32P-3, G33P-3

GC20P-3, GC25P-3, GC30P-3, GC32P-3

With G430E Tier LP Engine

G35S-2, G40S-2, G45S-2, G50C-2

G50S-2, G60S-2, G70S-2

with G643E Tier LP Engine

PART NO:

SB4137E00

ISSUED:

MAY, 2004
 

CONTENTS:

Index

WORKING WITH LPG EQUIPMENT

CHAPTER 0 LPG AND LPG FUEL TANKS

    LPG Fuel Supply

    LPG Fuel Tanks

    Installing LPG Fuel Tanks

    LPG Fuel Tank Components

    Fuel Gauge

    Pressure Relief Valve

    Service Valve

    Quick Disconnect Coupling

    Filler Valve

CHAPTER 1 G430E & G643E ENGINE SPECIFICATION

    Indication of Engine Serial Number

    Specifications (G430E)

    Specifications (G643E)

CHAPTER 2 MI-04 LPG SYSTEM OPERATIONAL OVERVIEW G430E & G643E

    MI-04 General Description

    MI-04 LP Fuel Filter

    MI-04 Fuel Lock-Off (Electric)

    MI-04 N-2001 Regulator/Converter

    N-2001 Theory of Operation

    MI-04 N-CA55-500TR Mixer

    N-CA55-500-TR Air/Fuel Mixer Theory of

    Operation

    MI-04 (N-CA100TR Mixer)

    N-CA100TR Air/Fuel Mixer Theory of Operation

    MI-04 Electronic Throttle

    MI-04 Fuel Trim Valve

    Heated Exhaust Gas Oxygen Sensor (HEGO)

    MI-04 SECM (General Description)

    MI-04 SECM (Fuel Management)

    MI-04 SECM (Load/Speed Management)

    MI-04 Ignition management

CHAPTER 3 MI- 4 MAINTENANCE SCHEDULE

    Recommended maintenance schedule

    Test Fuel System for Leaks

    Inspect Engine for Fluid Leaks

    Inspect Vacuum Lines and Fittings

    Inspect Electrical System

    Inspect Acceleration Pedal Operation

    Check Coolant Level

    Inspect Coolant Hoses

    Inspect Battery System

    Inspect Ignition System

    Replace Spark Plugs

    Replace LP Fuel Filter Element

    Testing Fuel Lock-off Operation

    Pressure Regulator/Converter Testing and Inspection

    Fuel Trim Valve Inspection (FTV)

    Inspect Air/Fuel Valve Mixer Assembly

    Inspect for Intake Leaks

    Inspect Throttle Assembly

    Checking the TMAP Sensor

    Inspect Engine for Exhaust Leaks

    Replace Oxygen Sensor

    Maintenance Schedule

CHAPTER 4 MI-04 LP BASIC TROUBLESHOOTING

    Basic Troubleshooting

CHAPTER 5 MI-04 LP ADVANCED DIAGNOSTICS

    Advanced Diagnostics

    Reading Diagnostic Fault Codes

    Displaying Fault Codes (DFC) From SECM Memory

    Clearing Fault (DFC) Codes

    Fault Action Descriptions

    Fault List Definitions

    Table a. MI-04 Diagnostic Fault Codes (Flash Codes)

CHAPTER 6 MI-04 ELECTRICAL CONNECTIONS

    Resistance Checks

    Voltage Checks

Doosan and Daewoo LPG-powered forklifts, this G430E and G643E Tier II LP Engine Service Manual delivers complete factory repair and diagnostic procedures for maintaining peak engine performance. Covering LPG fuel systems, engine management systems (EMS), engine electrical components, engine mechanical repairs, fuel delivery systems, advanced diagnostics, troubleshooting procedures, and maintenance schedules, the manual provides the technical information required for accurate servicing and fault diagnosis. Detailed illustrations, testing procedures, wiring information, fuel system adjustments, sensor diagnostics, and component overhaul instructions help simplify repairs while reducing downtime. Whether performing scheduled maintenance, troubleshooting engine issues, or rebuilding major components, this factory workshop manual is an essential resource for professional mechanics and forklift service departments. The manual contains approximately 99-100 pages of factory service information.