This manual covers the JCB 3170 and 3170 PLUS FASTRAC models, produced from the late 1990s into the early 2000s. These high-speed agricultural and utility tractors are engineered to combine the efficiency and comfort of road transport with the robust performance required for fieldwork. The FASTRAC designation highlights their unique ability to achieve significantly higher road speeds than conventional tractors, a key innovation in agricultural machinery. Built with JCB's renowned engineering quality, these models offer exceptional versatility, reliability, and a distinct design philosophy that merges automotive speed with tractor functionality. This comprehensive factory service repair workshop manual provides complete coverage for the JCB 3170 and 3170 PLUS FASTRAC. It details all engine variants, transmission types, and trim levels, offering in-depth guidance on maintenance, repair, and troubleshooting. The manual includes step-by-step procedures for engine and transmission overhauls, hydraulic system servicing, electrical diagnostics, braking, steering, and suspension systems. With detailed schematics, torque specifications, and diagnostic charts, this resource is essential for owners, mechanics, and technicians to ensure the optimal performance, longevity, and safety of their FASTRAC tractor.