The Fiat Trattori 680 and 680DT represent robust agricultural machinery, likely produced during the 1970s and 1980s. These tractors, originating from Italy, were designed for demanding farm work, embodying the engineering quality and reliability associated with the Fiat Trattori brand. Their construction prioritizes durability and functionality, making them capable workhorses for a variety of agricultural tasks. The 'DT' designation typically indicates a Dual Traction (4WD) variant, enhancing their versatility and performance in challenging terrain. This comprehensive workshop service and repair manual provides essential information for maintaining and repairing the Fiat Trattori 680/680DT. It covers critical systems including the engine, transmission, hydraulics, electrical components, and chassis. Detailed procedures for routine maintenance, periodic servicing, troubleshooting, and complete overhauls are included, offering step-by-step instructions suitable for professional technicians and experienced owners. The manual's scope ensures that users can effectively perform repairs, save on labor costs, and ensure the continued optimal performance and longevity of their tractor.