This workshop service manual covers Fiat Tractor models 580, 680, 580 DT, and 680 DT, produced during the late 1970s and 1980s. These diesel-powered tractors were engineered for robust performance and reliability in agricultural applications, reflecting Fiat's heritage in manufacturing dependable farm machinery. Known for their solid construction and functional design, these models provided essential power and versatility for farm owners, mechanics, and restoration specialists. This comprehensive manual provides detailed information for maintaining and repairing your Fiat tractor. It covers all major systems, including the engine, transmission, hydraulics, electrical system, brakes, steering, fuel, and cooling systems. You will find step-by-step repair instructions, diagnostic procedures, rebuilding and overhaul guidance, and essential technical specifications. The manual is designed to assist both professional technicians and DIY enthusiasts in ensuring the optimal performance and longevity of their Fiat Tractor 580-680 DT. 🏷️ Basic Information Identification Make: Fiat Model: Tractor 580-680 DT Product Type: Workshop Service Manual Codes Manual Format: PDF Download 👋 Introduction Market Position Target Audience: Farm owners, mechanics, DIY enthusiasts, restoration specialists. Competitive Analysis Value Proposition: Provides professional-level repair and maintenance information for Fiat tractors, enabling cost-effective ownership and operation. Key Features Illustration Style: Illustrated with clear step-by-step instructions. Usability: Suitable for both professional technicians and DIY users. Accessibility: Instant download, accessible on multiple devices. 📋 Manual Details Coverage Areas Vehicle Models Covered: Fiat Tractor 580, Fiat Tractor 680, Fiat Tractor 580 DT, Fiat Tractor 680 DT Page Count Number Of Pages: 192 Manual Type Type: Service Manual, Workshop Manual, Repair Guide Language Language: English (Assumed, based on product description) Format File Format: PDF 📖 Manual Coverage Systems Covered Engine: Detailed diagnosis, repair, overhaul, specifications, troubleshooting. Transmission: Service and repair of gearbox, differential, drive shafts, PTO. Hydraulics: Operation, maintenance, troubleshooting, and repair of the hydraulic system, including pump, valves, cylinders, and linkages. Electrical System: Wiring diagrams, component testing, troubleshooting of starting and charging systems, lighting, and instrumentation. Braking System: Service, repair, and adjustment of mechanical and hydraulic brake components. Steering System: Diagnosis and repair of steering mechanism, including linkage and potential power steering components (if equipped). Fuel System: Maintenance and repair of fuel injection pump, injectors, filters, and fuel tank. Cooling System: Radiator, thermostat, water pump, and fan maintenance and repair. Chassis And Body: Front axle, rear axle, hitch, drawbar, fenders, and platform service. Procedures Included Preventative Maintenance: Scheduled servicing, lubrication points, fluid level checks, filter replacements. Troubleshooting: Systematic diagnostic procedures for identifying and resolving common and complex problems. Repair: Detailed, step-by-step instructions for component removal, disassembly, repair, reassembly, and installation. Rebuilding Overhaul: Comprehensive instructions for complete engine, transmission, and hydraulic system overhauls. Adjustments: Calibration and adjustment of clutch, brakes, PTO, and engine components. Diagnostics: Fault finding, testing procedures for all major systems. Technical Depth Depth: Comprehensive, from basic maintenance to major overhauls and in-depth diagnostics. 📊 Manual Specifications File Format Quality: High-resolution PDF, clear illustrations and diagrams. Searchability: Likely searchable text content within the PDF. Print Quality Printable: Yes, printable on any standard printer. Binding Type Binding: Not applicable (Digital download). Paper Type Paper: Not applicable (Digital download). ⚙️ Engine Specifications Primary Engine Engine Type: Diesel Engine Family: Likely Fiat 8000 Series (common for this tractor generation) Performance Bore: Specific to engine variant, detailed in manual. Stroke: Specific to engine variant, detailed in manual. Horsepower 580: Approximately 55-60 HP (estimated, specific variant details in manual). Horsepower 680: Approximately 65-70 HP (estimated, specific variant details in manual). Fuel System Injection System: Direct injection, likely with Bosch or similar injection pump. Fuel Type: Diesel 🔧 Transmission Standard Transmission Type: Constant mesh gearbox with synchronized or unsynchronized options, depending on specific model variant. Optional Gear Configurations: Multiple forward and reverse gears (e.g., 8 forward, 4 reverse or similar). Features Power Take Off: Standard PTO, likely with multiple speeds (e.g., 540/1000 RPM). Clutch: Dual-stage clutch for transmission and PTO operation. 📐 Dimensions Exterior Overall Length: Specific to model and configuration, detailed in manual. Wheelbase: Specific to model, detailed in manual. Weights Operating Weight: Approx. 2000-2500 kg (estimated, specific weight will vary). 🛡️ Safety Features Ratings Rollover Protection: ROPS (Roll Over Protective Structure) may be an option or standard depending on year and market, discussed in manual. Active Features Brakes: Independent rear wheel brakes, potential park brake. 💡 Technology Features Infotainment Instrumentation: Basic analog gauges for oil pressure, coolant temperature, fuel level, tachometer, and hour meter. Driver Assistance Features: Basic, mechanical controls. Focus on functional operation and reliability rather than advanced electronics. 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 250-500 operating hours, detailed in manual. Air Filter Service: Check daily, service as needed based on operating conditions. Fuel Filter Replacement: Refer to manual, typically based on hours or fuel quality. Fluid Specifications Engine Oil Type: API CD/CE classification, SAE 15W-40 or 20W-50 (refer to manual for exact specification and temperature range). Transmission Hydraulic Fluid:...