2003-2005 Hyster Forklift H3.50-5.50XM, H70-120XM, S3.50-120XM Service Manual

Covers Hyster H3.50-5.50XM, H70-120XM, S3.50-120XM forklift models from 2003-2005. Includes repair procedures, diagrams, and troubleshooting for key systems like the brake, cooling, and electrical systems.

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Document Details

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Document Number / Seller:
30997 / Harold Morales
File Size:
25.66 MB
File Type:
ZIP
Language:
English
Pages:
778
Printable:
Yes
Category:
Forklift
Last updated / verified
Dec 21, 2025

Models Covered & Key Technical Specifications

Hyster Forklift Service Manual: H3.50-5.50XM, H70-120XM, S3.50-120XM (2003-2005)

Forklift Hyster Materials Handling, Inc. Service Repair Manual | H3.50-5.50XM, H70-120XM, S3.50-120XM Forklift Models 2003-2005 Troubleshooting-Index

  • General Specifications: Lift Truck Weights: Up to 7330 kg (16,160 lbs).
  • Electrical System: 12-volt system with negative ground.
  • Stall Speeds: Engine up to 1900 rpm ±50 rpm for Perkins.
  • Capacities: Engine oil up to 8.0 liters (8.5 qt) for Perkins.
  • Tire Pressure: Bias Ply Tires up to 140 psi for 250 x 15 - 18 Ply.
  • Engine Specifications: GM V-6 4.3 Liter displacement: 4.3 liters (262.4 in.3).

Manual Description & Preview

Hyster Forklift Service Manual: H3.50-5.50XM, H70-120XM, S3.50-120XM (2003-2005)

Operational-Scope: Covers Hyster H3.50-5.50XM, H70-120XM, S3.50-120XM forklift models (2003-2005). Unit-Designations: Forklift / Hydraulic System Service-Level: Repair Procedures and Diagnostic Guides.

Factory procedures are documented for:

  • Brake System components, including shoe assemblies, booster, and master cylinder.
  • Cooling System parts like the radiator, water pump, and thermostat.
  • Drive Axle assembly, including bearings and brakes.
  • Electronic Control Module (ECM) diagnostics and troubleshooting for GM 3.0L and 4.3L engines.
  • Engine specifications and capacities for GM V-6 and Perkins engines.
Component Operational-Logic Context
Engine GM V-6 4.3 Liter Specifications provided.
Transmission Powershift & Hydrostatic Oil pressures detailed.
Brakes Service & Parking Repair procedures included.
Electrical GM 3.0L & 4.3L ECM Diagnostic Trouble Codes listed.
Cooling System Components Troubleshooting included.

This manual details the repair procedures for various systems, including:

  • Brake System (Service and Parking)
  • Cooling System (Radiator, Water Pump, Thermostat)
  • Drive Axle (Assemblies, Bearings, Brakes)
  • Electronic Control Module (ECM) Diagnostics
  • Engine Specifications and Capacities

This manual documents torque specifications for various components to ensure proper fastener fatigue prevention.

FAQ

What values are critical for **calibrated** system architecture in this manual? keyboard_arrow_down

12 Volt negative ground system and up to 140 psi tire pressure are critical values for the system architecture.

Assess the **applicable** tool requirements for diagnostics. keyboard_arrow_down

A laptop computer with diagnostic software (e.g., 2067944) and a Spectrum Special Tools Kit (2067935) are applicable for diagnostics.

What components require **exact** electrical values for operation? keyboard_arrow_down

The alternator output (idle and high idle) and ignition timing specifications provide exact electrical values for operation.

Confirm the **specific** calibration settings for the engine. keyboard_arrow_down

Specific calibration settings include stall speeds up to 1950 rpm ±50 rpm for Perkins engines and engine oil capacities up to 8.0 liters (8.5 qt).

What tools are **designated** for clearance measurements? keyboard_arrow_down

Specialized diagnostic tools are designated for clearance measurements, especially when using the laptop computer for advanced diagnostics.

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