The Fiat Trattori 580 and 580DT are robust agricultural tractors produced from the late 1970s to the early 1980s. These models, part of the popular Fiat '500' series, are known for their reliable diesel engines, typically four-cylinder water-cooled units around 3.1 to 3.5 liters, delivering approximately 55-60 horsepower. The 580 variant features a 2-wheel drive system, while the 580DT offers enhanced traction with its 4-wheel drive capability. Both models are equipped with manual transmissions offering multiple forward and reverse gears, and often feature a dual-clutch system for transmission and power take-off (PTO) engagement. Designed for demanding agricultural tasks, these tractors embody the engineering quality and durability characteristic of Fiat Trattori's heritage. This comprehensive service repair manual provides full coverage for the Fiat Trattori 580 and 580DT models, catering to both professional technicians and DIY mechanics. It details maintenance procedures, including scheduled service intervals, fluid changes, and lubrication, alongside in-depth repair and overhaul instructions for all major systems. Covered areas include the engine, transmission, drivetrain, hydraulic system, electrical system, fuel system, cooling system, braking system, steering system, and chassis. The manual also includes detailed troubleshooting guides, diagnostic procedures, and specific information for the 580DT's four-wheel drive system, ensuring owners can effectively maintain, repair, and restore their tractors.