This factory service repair manual covers the Fiat Trattori 680, a robust and reliable utility tractor produced approximately between the late 1970s and mid-1980s. Known for its workhorse capabilities in agricultural settings, the 680 is powered by a Fiat 8000 series diesel engine, likely a four-stroke, naturally aspirated or turbocharged inline 4 or 6-cylinder unit with displacement ranging from 3.5L to 5.5L, producing an estimated 65-85 HP. Its design emphasizes durability and practical functionality, making it a dependable choice for various farming tasks. The tractor features a manual transmission, often with a dual-clutch system for the PTO, and a functional hydraulic system. This comprehensive manual provides factory-level information essential for the maintenance, diagnosis, and repair of your Fiat Trattori 680. It includes detailed service procedures, repair instructions, and troubleshooting guides covering all major systems, including the engine, transmission, hydraulics, electrical systems, brakes, steering, and chassis. With organized sections, wiring diagrams, and specific technical data such as torque specifications and fluid types, this manual empowers owners, operators, and service technicians to perform scheduled maintenance, address common issues, and execute complex repairs efficiently. The English language manual is presented in a digital format, requiring specific software and compatible with both Windows and Mac operating systems.