This manual covers the Fiat Trattori 680, an agricultural tractor produced likely in the 1970s and early 1980s. Renowned for its robust engineering and reliability, the Fiat Trattori 680 is part of a series known for versatility and durability. Its design emphasizes practical functionality for agricultural tasks, embodying Fiat Trattori's long heritage of producing dependable machinery. This tractor, a testament to its era's agricultural technology, offers straightforward operation and solid performance for a variety of farm applications. The purpose of this comprehensive service repair manual is to provide detailed information for the maintenance and repair of your Fiat Trattori 680. It covers all major systems, including the engine, transmission, drivetrain, hydraulic system, electrical system, brakes, and steering. Within these sections, you will find scheduled maintenance procedures, lubrication charts, fluid specifications, diagnostic troubleshooting guides, step-by-step repair instructions, and detailed rebuild procedures. The manual also includes technical specifications, safety guidelines, and numerous illustrations to assist professional technicians and serious DIY mechanics in keeping the tractor in optimal working condition. 🏷️ Basic Information Identification Make: Fiat Model: Trattori 680 Type: Agricultural Tractor 👋 Introduction Market Position Target Audience: Professional Technicians and Serious DIY Mechanics Competitive Analysis Value Proposition: Comprehensive, detailed repair information replacing expensive OEM manuals or unreliable online sources. Key Features Features: Instant download, printable, extensive coverage, detailed illustrations, professional technician level data. 📋 Manual Details Coverage Areas Coverage: Full Service Repair Page Count Estimated Page Count: Extensive (Typical for full service manuals, likely several hundred pages) Manual Type Type: Service Repair Manual Language Language: English Format Format: PDF Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinRAR Compatibility Operating Systems: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine: Comprehensive Engine Overhaul and Repair Transmission: Transmission Service, Repair, and Overhaul Drivetrain: Front and Rear Axle, Differential, Drive Shafts Hydraulic System: Hydraulic Pump, Valves, Cylinders, PTO Operation Electrical System: Wiring Diagrams, Troubleshooting, Component Diagnosis Braking System: Brake System Service and Repair Steering System: Steering Mechanism and Power Steering Service Cooling System: Radiator, Fan, Thermostat, Water Pump Service Fuel System: Fuel Tank, Lines, Injectors, Pump Service Exhaust System: Muffler, Piping, and Mounting Service Chassis And Body: Frame, Fenders, Hood, Operator Station Repair Procedures Included Maintenance: Scheduled Maintenance, Lubrication Charts, Fluid Checks Troubleshooting: Diagnostic Procedures, Common Problems, Solutions Repair: Detailed Step-by-Step Repair Instructions Rebuild: Complete Engine, Transmission, and Component Rebuild Refurbish: Restoration and Refurbishment Procedures Diagnostics: Electrical System Diagnostics, Fault Finding Technical Depth Depth: Professional Technician Level, including complex diagnostics and rebuilds Illustrations: Detailed Illustrations, Drawings, and Photos Warnings: Notes, Cautions, and Warnings for Critical Information Instructions: Numbered Step-by-Step Instructions Figures: Bold Figure Numbers for Illustration Matching Insets: Enlarged Insets for Detailed Part Identification Table Of Contents: Numbered Table of Contents for Easy Navigation 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Full Printable (All Pages) Binding Type Binding: Digital (Downloadable PDF) Paper Type Paper Type: Not Applicable (Digital) ⚙️ Engine Specifications Primary Engine Engine Family: Fiat 8000 Series (Likely) Engine Type: Diesel, Naturally Aspirated (common for this era) Performance Horsepower Range: Estimated 60-75 HP (depending on specific variant) Torque Output: Estimated 170-200 Nm (depending on specific variant) Fuel System Fuel Injection: Mechanical Injection Pump, Injectors Technical Details Displacement: Likely in the range of 3.0-3.5 Liters (4-cylinder) Bore X Stroke: Specifics to be found in manual, typical Fiat diesels of the era. 🔧 Transmission Standard Transmission Type: Manual Synchromesh (Likely) Optional Optional Features: Possible creeper gears or dual-speed PTO. Features Gear Options: Likely 8 or 12 forward and 4 or 8 reverse gears. Fluid Requirements Transmission Fluid Type: API GL-4 or GL-5 gear oil (specific grade to be confirmed in manual). Clutch Clutch Type: Dry Single Plate Clutch 📐 Dimensions Exterior Overall Length: Approx. 3.5-4.0 meters (Varies by configuration) Overall Width: Approx. 1.7-2.0 meters (Varies by tire size) Wheelbase: Approx. 2.2-2.4 meters Weights Operating Weight: Approx. 2500-3000 kg Towing Capacity: Refer to manual for specific ratings. 🛡️ Safety Features Ratings Safety Standards: Likely met relevant European agricultural machinery safety directives of its era. Active Features Braking System: Mechanical Drum Brakes (Rear) and potentially Disc Brakes on Front (depending on variant). Passive Features Operator Protection: ROPS (Roll-Over Protective Structure) likely optional or standard depending on market and year. 💡 Technology Features Infotainment Infotainment System: Basic operator controls, no digital infotainment. Driver Assistance Assistance Features: None (mechanical controls typical for the era). Connectivity Connectivity Features: None (mechanical operations). 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 250-500 operating hours (refer to manual for exact intervals). Transmission Fluid Change: Typically every 1000-1500 operating hours. Hydraulic Fluid Change: Typically every 500-1000 operating hours. Fluid Specifications Engine Oil Type: API CD or CE rated diesel engine oil, SAE 15W-40 recommended (check manual). Coolant Type: Ethylene Glycol based antifreeze mixture, typically 50/50. Known Issues Common Wear Points: Clutch wear, hydraulic pump wear,...