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Hyster J019 - User Manual

Hyster J019
25 pages
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Hyster J019 (H300HD2, H330HD2, H360HD2,
H360HD2-EC) Forklift Service Repair Manual
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Summary

Safety Precautions Maintenance and Repair

Electrical System

System Overview and Schematics

Provides general manual information and describes electrical schematic layout and description.

Schematic Location, Components, and Wires

Covers schematic location numbering, component representation, and wire identification.

Wire Colors and Harnesses

Details wire color coding and the purpose/identification of wire harnesses.

Harness Interconnection

Describes how wire harnesses are connected and indicated on schematics.

Electrical Connectors Overview

Explains connector types, identification, pins, and descriptions.

Fuses

Details the location and function of fuses in the electrical system.

Relays

Describes the relay panel and individual relays for system functionality.

Flyback Diodes and CAN Network

Covers flyback diode function and the CAN bus communication system.

Instrument Panel

Describes the instrument panel components, indicators, and testing.

Diagnostic and Troubleshooting

Covers CAN bus diagnostics and general fault finding procedures.

General Fault Finding

Provides a guideline for finding electrical faults in the system.

Wire Harness Identification

Guides on identifying wire harnesses and locating specific connectors.

Summary

Safety Precautions Maintenance and Repair

Electrical System

System Overview and Schematics

Provides general manual information and describes electrical schematic layout and description.

Schematic Location, Components, and Wires

Covers schematic location numbering, component representation, and wire identification.

Wire Colors and Harnesses

Details wire color coding and the purpose/identification of wire harnesses.

Harness Interconnection

Describes how wire harnesses are connected and indicated on schematics.

Electrical Connectors Overview

Explains connector types, identification, pins, and descriptions.

Fuses

Details the location and function of fuses in the electrical system.

Relays

Describes the relay panel and individual relays for system functionality.

Flyback Diodes and CAN Network

Covers flyback diode function and the CAN bus communication system.

Instrument Panel

Describes the instrument panel components, indicators, and testing.

Diagnostic and Troubleshooting

Covers CAN bus diagnostics and general fault finding procedures.

General Fault Finding

Provides a guideline for finding electrical faults in the system.

Wire Harness Identification

Guides on identifying wire harnesses and locating specific connectors.

Overview

This document is a service and repair manual for Hyster J019 (H300HD2, H330HD2, H360HD2, H360HD2-EC) forklift models, as well as H8.0-12.0XM-6 (H190-280HD2) [K007], H13.0-14.0XM-6 (H300-330HD2) [J019], H16.0XM-6 (H360HD₂) [J019], H10.0-12.0XM-12EC (H360HD2-EC) [J019], H16XM-9, H16XM-12, H18XM-7.5, H18XM-9 (H360-36HD, H360-48HD) [A238] forklifts, specifically focusing on the electrical system.

Function Description

The manual provides comprehensive information on the electrical system of the specified Hyster forklift models. It details the electrical schematic and system description, including the identification of electrical components, wires, harnesses, and connectors. The electrical schematic is organized by function, with each sheet representing a specific function or area of the forklift's electrical system. This modular approach allows for easier troubleshooting and maintenance. The system incorporates a CAN (Controller Area Network) bus for communication between various controllers, such as the transmission controller, hydraulic controller, instrument cluster, and engine control module. This network enables efficient data exchange and coordinated operation of different forklift functions. The manual also covers diagnostic procedures, including general fault finding, and provides detailed information on the instrument panel, which displays critical operational data and warning lights.

Important Technical Specifications

The electrical system relies on a structured wire identification system. Each electrical wire is identified by a solid line, an identification number, and a color code for its insulation. Wire identification numbers range from 1 to 999, with specific ranges assigned to different function ID groups. For instance, grounds are numbered 101-149, switched B+ are 200-239, and communication wires (CAN) are 900-909. Electrical wire colors are standardized to indicate circuit levels: Red for Battery Level Power Circuits, Black for Heavy Current Grounds, Green for Signal Grounds, Pink for 12 Volt, Orange for 5 Volt Supply, White for Other Circuits, Yellow (Twisted Pair) for CAN Hi, and Green (Twisted Pair) for CAN Lo.

The system includes various fuses and relays for circuit protection and control. The grid heater and alternator have separate fuses located in the engine compartment, while other electrical circuits are protected by fuses in four panels behind the instrument panel cover. Relays, except for the grid heater and starter relay, are located on a dedicated relay panel. The manual lists specific fuse values and their locations, such as a 5A fuse for the OPS Switch (F10), 30A for Flood Lights (F11), and 15A for Mast/Attachment Lights (F16). Relays are also detailed, including their functions (e.g., Flood Lights, Main Power, Ignition, AC Fan) and their corresponding connectors and locations.

Flyback diodes are integrated into connectors to prevent current surges when components are switched off, thereby protecting mechanical contacts in switches and relays from premature erosion. The CAN bus system uses twisted pair wires (900 green for data inverse and 901 yellow for data) to reduce sensitivity to electromagnetic interference. Termination resistors (120 Ohm) are present at the extreme ends of the controller string to ensure proper CAN bus functionality.

Usage Features

The electrical system supports various operational features of the forklift:

  • Lighting: Includes front and tail lights, reverse alarm, mast lights, flood lights, brake lights, front drive lights, interior lighting, direction indicators, and side/tail lights.
  • Engine and Transmission Control: Integrates with the Engine Control Module (ECM) and Transmission Controller for essential functions like engine start, ignition, and transmission operation.
  • Hydraulic System: Controls hydraulic functions, including lift, tilt, and auxiliary solenoids, and monitors hydraulic temperature and hoist pressure.
  • Operator Comfort and Safety: Features include wipers and washers, horn, HVAC (heating, air conditioning, and ventilation), radio/CB/intercom, power sockets (12VDC and 24VDC), and safety interlocks like parking brake solenoid, seat suspension compressor, and neutral/start inhibit relays.
  • Diagnostic Capabilities: The instrument panel displays various warning lights and gauges, such as central warning, coolant temperature, hour meter/fault code display, engine warning, transmission warning, hydraulic system malfunction, and fuel level. Many of these are controlled by CAN bus signals, and fault codes are stored in the controllers for advanced diagnostics using a laptop computer and IFAK cable.

Maintenance Features

The manual emphasizes several maintenance and repair guidelines:

  • Safety Precautions: Always disconnect the battery connector before any electrical maintenance. Wear safety glasses. Use correct tools and HYSTER APPROVED parts. Ensure all fastening devices are removed before forcing parts. Fasten a "DO NOT OPERATE" tag to controls during repairs.
  • Troubleshooting: A systematic fault-finding procedure is outlined, starting with identifying symptoms, defining the problem area, listing possible causes, and prioritizing them.
  • Fuse Check: Determine the fuse protecting the failed circuit, investigate for overload or short circuit, repair the cause, and then replace the fuse. The actual location of fuses is indicated in Figure 4.
  • Wiring Check: Check for signal presence at components, and if absent, at upstream components (relay, fuse, switch, ignition switch). Inspect for damaged wire insulation and verify battery ground connections for virtually zero resistance.
  • Component Check: Isolate and check the electrical functionality of components. Switches and connectors should have virtually zero resistance when closed. Check for open circuits, short circuits, and insulation breakdown. Monitor coils and relays for overheating, which indicates a defect.
  • CAN Bus Diagnostics: Verifying CAN bus connection involves checking the continuity of data wires (900 green and 901 yellow) and the 120 Ohm resistance of the termination resistor. Since controllers cannot be repaired, a defective controller must be replaced.
  • Instrument Panel Maintenance: If the instrument panel is found defective, the entire unit must be replaced as there are no serviceable components within it.
  • Schematic and Connector Overview: The manual provides detailed tables and figures for electrical schematic indexes, function ID numbers, wire colors, harness options, and a comprehensive connector overview, including their descriptions, Tier III and Tier IV locations, and associated figures. This information is crucial for identifying and locating specific electrical components and connections during maintenance.

Hyster J019 Specifications

General IconGeneral
BrandHyster
ModelJ019
CategoryForklifts
LanguageEnglish

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