2004-2010 JCB Telehandler 528-70 / 528S Service Manual (P/N 9803/3710-3)

• Official JCB publication P/N 9803/3710-3, 2004 first edition
• Built for owners and technicians servicing the 2004–2010 JCB 526, 526S, 528-70, and 528S rear-engine telehandlers
• Contains 49 detailed mechanical diagrams for component tear-down and assembly reference
• Features 13 comprehensive torque specification tables

Technical Coverage

This factory publication acts as the primary reference for servicing JCB rear-engine telehandlers. It breaks down major machine systems to streamline shop-floor troubleshooting. You get complete overviews of the bodywork, electrical circuits, and hydraulic operations. It also details the transmission drive units, braking systems, and steering geometry. Proper safety is critical when working with heavy machinery. Always review the included safety guidelines and depressurize systems before cracking any hydraulic lines or starting component teardowns. The documentation maps out the exact identification locations for major units and walks through the required diagnostic service tools.

Specification and Reference Data

Expect heavy technical data aimed squarely at the working technician. The manual delivers complete torque charts for UNF and Metric fasteners, specifically Grades 8.8, 10.9, and 12.9. Need fluid capacities? It lists the exact fill volumes for the engine, transmission, and the 110-liter hydraulic tank. The reference clearly outlines strict maintenance intervals for routine inspection cycles. This includes hydraulic filtration, cooling system flushes, and core engine care. You will also find precise connector specifications for BSP adaptors and SAE hydraulic fittings, alongside the exact torque ranges needed for pressurized lines. Finally, it provides sensor reference values and diagnostic checks for the load moment indicator to ensure accurate system calibration.