This workshop service repair manual covers Fiat Tractor models 580 and 680, including their Dual Traction (DT) variants. These tractors, part of Fiat's robust agricultural machinery line from the late 20th century, are known for their dependable construction and suitability for a wide range of farming operations. The DT designation signifies four-wheel drive capability, enhancing traction and performance in demanding conditions. This manual provides comprehensive guidance for maintaining and repairing these reliable workhorses, empowering users to keep them operational for years to come. This extensive 192-page manual offers detailed information essential for the upkeep and repair of your Fiat tractor. It covers all major systems, including the engine, transmission and drivetrain, hydraulic system, electrical components, braking, and steering. You will find step-by-step instructions for routine maintenance tasks, in-depth troubleshooting guides for diagnosing issues, and procedures for component overhaul and complete rebuilds. The manual is designed to be a valuable resource for professional technicians, mechanics, and owner-operators alike, ensuring that all aspects of the tractor can be addressed with clarity and precision. 🏷️ Basic Information Identification Make: Fiat Model: 580-680 DT Type: Tractor Codes Model Designation: 580-680 DT (DT likely indicates 'Dual Traction' or 'Four-Wheel Drive') 👋 Introduction Market Position Target Audience: Owners and operators of Fiat 580 and 680 tractors requiring maintenance, repair, or restoration information Competitive Analysis Value Proposition: Provides professional-level repair and maintenance guidance at a fraction of the cost of dealership service, empowering users to perform tasks themselves. Key Features Key Selling Points: Comprehensive coverage, step-by-step instructions, troubleshooting assistance, factory technician equivalent information, digital accessibility. Manual Purpose Primary Objective: To provide a complete guide for servicing, repairing, restoring, and maintaining Fiat Tractor 580-680 DT models. 📋 Manual Details Coverage Areas Vehicle Models Covered: Fiat Tractor 580, Fiat Tractor 680 (including DT variants) Page Count Total Pages: 192 Manual Type Type: Workshop Service Repair Manual Language Primary Language: English (assumed based on typical sales channels, though original could vary) Format Delivery Format: Digital Download (PDF) File Compression: May be zipped, requiring unarchiving software (e.g., WinZip, WinRAR) 📖 Manual Coverage Systems Covered Engine Service: Detailed overhaul, troubleshooting, timing, fuel system, cooling system, lubrication Transmission And Drivetrain: Gearbox, differential, final drives, PTO (Power Take-Off), 4WD system (DT variants) Hydraulic System: Hydraulic pump, control valves, cylinders, hitch system, PTO engagement Electrical System: Starting system, charging system, lighting, instrumentation, wiring diagrams Braking System: Service brakes, parking brake, hydraulic brake system components Steering System: Mechanical and power steering (if applicable) Chassis And Suspension: Front axle, rear axle, drawbar, chassis components Operator Station: Controls, seat, platform, dashboard layout Bodywork And Fittings: Fenders, hood, grille, hitch components Procedures Included Maintenance Tasks: Routine servicing, lubrication points, fluid changes, filter replacements, pre-operation checks Troubleshooting Guides: Diagnostic charts for common problems, symptom-based fault finding Repair Procedures: Step-by-step instructions for component removal, overhaul, and reinstallation Rebuild Guidance: Detailed instructions for complete engine, transmission, and hydraulic system rebuilds Diagnostics: Component testing, calibration, and adjustment procedures Preventative Maintenance: Recommendations for extending service life and preventing breakdowns Technical Depth Depth Of Information: Comprehensive, covering from basic maintenance to complete engine and transmission rebuilds Detail Level: Illustrated with clear step-by-step instructions User Suitability: Suitable for professional technicians, mechanics, and DIY enthusiasts 📊 Manual Specifications File Format Document Format: PDF PDF Capabilities: Searchable text (likely), printable Print Quality Illustration Quality: Clear, aiding in procedure comprehension Binding Type Physical Format: Not a hard copy; digital download only Paper Type Digital Format: N/A (digital) ⚙️ Engine Specifications Primary Engine Engine Type: Likely Fiat-designed naturally aspirated diesel engines (specific displacement and cylinder count would require model-specific data). Performance Horsepower Range: Typically in the 50-70 HP range for this class of tractor, specific figures vary by exact model and engine variant. Torque Characteristics: Designed for robust low-end torque delivery crucial for agricultural applications. Fuel System Injection Type: Mechanical diesel injection system (likely rotary or inline pump). Cooling System Cooling Method: Liquid-cooled, typically with a radiator, fan, and thermostat. Lubrication System Oil Type Specification: Refer to manual for specific SAE viscosity grade (e.g., SAE 15W-40) and API service classification (e.g., API CD/CE). 🔧 Transmission Standard Gearbox Type: Manual transmission, likely with a range of forward and reverse gears. Optional Transmission Options: While not explicitly stated, some models might have offered PTO options or creeper gears. Features P T O Systems: Likely rear PTO, potentially with multiple speed options (e.g., 540/1000 RPM). Drive Configuration: DT variants indicate Dual Traction, meaning 4-wheel drive capability. Fluid Specifications Transmission Fluid: Refer to manual for specific GL classification (e.g., GL-4 or GL-5) and viscosity grade for gearbox and hydraulic systems. 📐 Dimensions Exterior General Configuration: Standard agricultural tractor layout with engine at the front, transmission and drive components mid-chassis, and operator station at the rear. Weights Operating Weight: Specific weight varies by configuration but typically within the 2000-3000 kg range for this tractor class....