2005 Forklift Service Manual
Complete service and repair information for Hyster forklifts, covering C470, C471, G138, and B264 models. This manual details electrical systems, troubleshooting, and component replacement procedures.
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Models Covered & Key Technical Specifications
Hyster Forklift Service Manual (Part No. 1503628) - 2005 Comprehensive diagnostic, service, and parts information for Hyster C470, C471, G138, and B264 forklift models. | Electrical System Package.
- System Diagnostics: Controller operational status and fault codes are clearly outlined.
- Component Specifications: Includes detailed information on contactors and fuses.
- Wiring Schematics: Comprehensive diagrams for electrical system troubleshooting.
- Troubleshooting Charts: Systematic approach to diagnosing and resolving common issues.
- MIB Setup Procedures: Step-by-step guide for configuring the Main Interface Board.
- Motor Controller Data: Detailed specifications for SEM Traction Motor Controller.
Manual Description & Preview
Hyster Forklift Service Manual: 2005 Forklift Service Manual: Electrical System
System-Coverage: All Hyster Forklift models // Model-Specs: C470, C471, G138, B264 Logic // System-Coverage: Electrical System.
Description/Features
The contactor panel assembly is located in the front compartment on G138 and B264 model series trucks, and on the side panel of the operator’s station for C470 and C471 model series trucks. The contactor panel assembly contains the following major components:
- Traction Contactor
- Lift Pump Contactor
- Steer/Auxiliary Pump Contactor
- 3 Power Fuses
- 4 Control Fuses
- ER (Enable Relay)
- HR (Hourmeter Relay EE trucks only)
- 6-Amp Diode (for reverse polarity protection)
Components used in the contactor panel assembly are common to both the 24-volt truck and the 36-volt truck options.
Table of Contents Summary
- General
- Contactor Panel Assembly
- Contactors
- Fuses
- Relays
- Height Proximity Switch
- Key Switch
- Battery Disconnect Switch
- Proportional Electro-Hydraulic Control Valves
- Carriage Valve Assembly and Selector Valves
Electrical System Overview
The electrical control system consists of the following major components: Main Interface Board (MIB), Proportional Electro-Hydraulic Valve, SEM Traction Motor Controller, Dash Display Assembly, and Control Handle Assembly. This manual provides detailed descriptions and procedures for these components, including removal, installation, testing, and troubleshooting.
Troubleshooting
This manual details troubleshooting procedures for various electrical system issues. It covers common fault codes, warning codes, and blank or undefined code conditions. Faults originating from the traction controller, MIB, or dash display are addressed with systematic diagnostic steps and possible causes for each error.
Component Repair
Detailed procedures for component repair and replacement are included. This covers contactors, fuses, relays, switches, and control assemblies. Specific instructions are provided for testing and servicing these parts to ensure proper truck function.
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