This comprehensive workshop manual covers the Case IH 1255 Tractor, a robust agricultural machine typically produced in the late 1980s to early 1990s. Known for its reliable performance and sturdy construction, the 1255 is a testament to Case IH's long-standing heritage in agricultural machinery manufacturing. This tractor, likely powered by a diesel engine in the 120-130 HP range, is designed for demanding farm operations and features a synchronized gearbox, hydraulic power steering, and a hydraulic wet disc braking system. Its engineering prioritizes durability and efficiency, making it a valuable asset for agricultural professionals. This manual provides complete service and repair instructions for the Case IH 1255 Tractor, encompassing detailed procedures for the engine, fuel system, turbocharger, electrical equipment, control center, and chassis. It includes step-by-step guidance for routine maintenance, troubleshooting common issues, and performing complex repairs and overhauls. With clear text, diagrams, illustrations, and wiring schematics, this resource is designed for owners, independent mechanics, and service professionals. It offers dealer-level technical data, enabling users to maintain their tractor effectively, ensure longevity, and perform necessary repairs with confidence.