Hyster H135-155XL, H135-155XL2 & S135-155XL 1990–2005 Forklift Service & Repair Manual (P/N 899784)

• Applies to 1990–2005 Hyster H135-155XL, H135-155XL2, and S135-155XL models
• Includes engine specifications for GM 4.3L, Perkins 4.2482, and Perkins 1004.4
• Cross-references official Hyster P/N 899784, 897109, 897113, and 897501 (2002–2007 releases)
• Contains 56 electrical schematics, 15 exploded-view component diagrams, and 12 torque-specification tables

This factory manual provides the required maintenance parameters and system specs for F006, G006, B024, and C024 serial code lift trucks. It focuses strictly on the hydraulic, brake, electrical, and cooling systems, skipping the fluff so you can get straight to the data you need for the job.

Technical Content Overview

Inside, you will find targeted data on specific alternator types (Delco, Motorola, and Leece-Neville), including charging circuit diagnostics, diode bridge checks, and rotor field winding resistance values. The brake sections map out the two-stage master cylinder operation, booster relief valve settings, and automatic adjuster mechanisms. For cooling and electrical work, the guide details thermostat testing procedures, radiator maintenance, and complete wiring schematics for both gas and diesel models—covering electronic engine controls, lighting, and instrumentation circuits.

Specifications and Safety

The manual details precise torque values for drivetrain and chassis components, such as drive axle mounting capscrews (610 Nm / 450 lbf ft) and final-stage wheel bearing adjustments (35 Nm / 25 lbf ft). Hydraulic sections list the main pump relief pressure settings at 20.88 to 21.20 MPa (3025 to 3075 psi), alongside exact alternator output ratings for both engine configurations. Understanding how factory workshop documentation is structured helps speed up your navigation through these indexed chapters.

Servicing heavy industrial lift trucks carries inherent physical risks. This summary is provided for informational purposes to help you evaluate the manual's contents. Always adhere to standard shop safety protocols and verify procedures with a certified technician before applying these specifications to your equipment.