The Fiat Trattori 70-90 is a robust agricultural tractor, part of the esteemed 90 series known for its reliability and durable Italian engineering. Likely produced in the late 1980s and 1990s, this diesel-powered machine, with an approximate 70 horsepower rating, was designed for demanding tasks within the agricultural sector. Its core functionality is driven by a diesel engine, likely from Fiat's 8000 series, paired with a manual synchromesh gearbox offering multiple forward and reverse speeds. The 70-90 represents a blend of practical design and operational efficiency, making it a valuable asset for cultivators. This comprehensive service repair manual provides essential information for maintaining and repairing the Fiat Trattori 70-90. It covers a wide range of systems, including detailed procedures for the engine, transmission, hydraulics, electrical system, brakes, steering, cooling, fuel, PTO, and chassis. The manual offers step-by-step instructions for disassembly, assembly, repair, and routine maintenance, along with troubleshooting guides and critical specifications such as torque values. Designed for both professional technicians and DIY mechanics, this manual aims to facilitate efficient upkeep and prolong the operational life of the tractor, acting as a definitive resource for all service needs.