This comprehensive repair manual provides detailed instructions and specifications for a wide range of Fiat DT tractors, including the 480, 500, 540, 580, 640, and 680 models. The manual covers various aspects of maintenance and repair, encompassing the engine, powertrain system, hydraulics, electrical system, and more. You'll find detailed information on engine removal and installation, crankcase and cylinder head repair, valve and timing mechanism adjustments, crank gear assembly, fuel system troubleshooting, fuel tank and pump maintenance, injection system specifics, lubrication system care, cooling system servicing, torque specifications for proper assembly, specialized service tools required, transmission and bevel gear system repair, differential maintenance, brake system overhaul, final drive adjustments, rear wheel servicing, front axle and steering system repair, clutch system maintenance, hydraulic lift unit troubleshooting, PTO-belt pulley adjustments, electrical system diagnostics, charging system repair, battery system care, starting motor maintenance, accessory equipment servicing, light, switch, and fuse replacement, comprehensive troubleshooting guides, and detailed wiring diagrams.

The Fiat DT tractor series, encompassing models 480, 500, 540, 580, 640, and 680, represents a range of robust and powerful agricultural machines designed to tackle a wide variety of farm tasks. This series is known for its reliability and durability, making it a popular choice for farmers seeking a versatile and reliable workhorse. The Fiat DT tractors are characterized by their robust construction, featuring durable steel frames and heavy-duty components, ensuring long-lasting performance even in demanding agricultural conditions. The Fiat DT tractors come equipped with a range of diesel engines, varying in size and power output depending on the model. The smaller 480 and 500 models utilize a 2592cc, 3-cylinder engine, while the larger 640 and 680 models are powered by 3456cc, 4-cylinder engines. These engines are known for their efficiency and fuel economy, minimizing operational costs for farmers. The tractors are also equipped with advanced transmission systems, featuring robust gearboxes and heavy-duty clutches for smooth and reliable power delivery. The hydraulic lift system offers powerful and precise control over implements, enabling efficient handling of various agricultural tasks. The Fiat DT tractor series encompasses a range of models, each tailored to specific needs. The 480 and 500 models are well-suited for smaller farms and general tasks, while the larger 640 and 680 models are ideal for demanding applications such as plowing, cultivating, and heavy-duty haulage. The comprehensive repair manual provides detailed information on every aspect of the Fiat DT tractor, covering engine, transmission, hydraulics, electrical systems, and more. This manual serves as an invaluable resource for mechanics and owners alike, enabling efficient troubleshooting and maintenance of these reliable agricultural machines.