🏷️ Basic Information Identification Make: Fendt Model: 309 VARIO COM III, 310 VARIO COM III, 311 VARIO COM III, 312 VARIO COM III Product Name: FENDT 309 310 311 312 VARIO Tractor Workshop Service Manual PDF Download Vehicle Type: Tractor Codes Emissions Compliance: COM III (likely Stage III A / Tier 3 emissions standard) 👋 Introduction Market Position Market Position: Fendt tractors are positioned as premium, high-performance agricultural machinery, known for their advanced technology, efficiency, and comfort, particularly the Vario transmission systems. Competitive Analysis Competitive Analysis: Competes with other major tractor manufacturers like John Deere, Claas, Massey Ferguson, and Case IH in the high-horsepower, technologically advanced segment. Fendt's Vario continuously variable transmission is a key differentiator. Key Features Key Features: Focus on Vario transmission technology, advanced hydraulics, operator comfort, and integrated electronic control systems. The manual provides detailed insights into these complex systems. 📋 Manual Details Coverage Coverage Areas: Comprehensive service and repair for Fendt 300 Vario series tractors, including transmission control, axles, brakes, PTO, steering, hydraulic systems, electrical systems, cab, and front loader. Page Count Page Count: >1100 pages Manual Type Manual Type: Workshop Service Manual / Repair Manual Language Language: English (implied by content and typical for workshop manuals) Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems Covered: General Tractor Systems, Transmission Control Unit, Differential, Axle Drive, Handbrake, Housing, Brake System, Vario Transmission Unit, Emergency Control, Clutch Actuation System, Cardan Brake, ML Range Control, Front PTO, Live PTO, Front-Wheel Drive, Hydrodamp, Hydraulic Pump, Transmission Lubrication System, Pump Drive, ML Adjustment, Enhanced Control System Valves, Enhanced Control System Pipes, Front Axle Support, Axle Housing, Suspension, Suspension Valve Fitting, Suspension Pipe, Track Rod, Steering Cylinder, Frame, Cardan Shaft, Diff. Lock Actuation System, Steering, Steering Wheel, Hydraulic Steering Assembly, Vehicle Body, Design, Driver Seat, Trailer Hitch, Trailer Hitch Coupling, Cab Mount, Suspension, Air Conditioning System, Compressor Drive, Coolant Lines, Evaporator, Condenser, Electrical Cables, Cab, Heater, Ventilation, Windscreen Wipers, Cable Loom, Power Lift, Electro-hydraulic EPC Control, External Control, Control Lifting Gear, Three-point Hitch, Lift Arms, Support, Compressor, Brake Fittings, Lines, Electrical Actuation System, Air Tank, Front Loader, Mounting Frame, Hydraulic Implement Actuation System, Hydraulic Circuit, Multi-coupling, Pipes, Lift Cylinder, Electrics, Alternator, Starter Lockout, Fuses, Battery System, Starter Motor System, Front Power Lift, Lift Gear, Cylinder, Pipes, Enhanced Control Power Lift, Frame, Hydraulic Pump Assembly, LS Pump, Transmission Pump, Steering Pump, Hydraulic Pipes, Base Circle, Power Lift, With Oil Cooler, Hydraulic Trailer Brake, Steering, Reversing System, Hydraulic Connections, Central Control Block (ZSB), Valve Assembly, External Pressure Supply, Valve Supplement, Electronics, Instrument Panel, Terminal, LBS - Agricultural Bus System, Transducer, Radar Sensor, E-Box, Transmission Actuator Unit, Drive Switch, Control Panel, Engine EDC, ECU, Lift Gear, Service, Special Tools, FENDIAS. Engine Management: Covers Engine EDC (Electronic Diesel Control) and ECU (Electronic Control Unit) for precise fuel injection and engine performance management. Electrical System: Detailed coverage of alternator, starter motor system, battery system, fuses, cable looms, and electrical actuation systems, including specific wiring diagrams (implied by 'Cable Loom' and 'Electrical Cables'). Steering System: Includes hydraulic steering assembly, track rod, steering cylinder, and steering wheel adjustments/repair. Brake System: Comprehensive coverage of the main brake system, handbrake, cardan brake, and hydraulic trailer brake fittings and lines. Pto Systems: Detailed procedures for Front PTO and Live PTO systems, including engagement and maintenance. Frame And Body: Sections on frame construction, axle housings, and vehicle body design elements relevant to service and repair. Procedures Included Procedures Included: Detailed repair and service procedures, troubleshooting, diagnostics, maintenance, component replacement, system adjustments, and overhauls. Maintenance Procedures: Routine maintenance tasks such as lubrication, fluid changes, filter replacements, and inspections are thoroughly covered. Technical Depth Technical Depth: Comprehensive, covering all aspects from basic maintenance to advanced diagnostics and repair, suitable for both DIY enthusiasts and professional mechanics. Illustrations: Features detailed illustrations, diagrams, and pictures to guide through procedures. Hydraulic System Hydraulic System: Extensive coverage including hydraulic pumps (LS Pump, Transmission Pump, Steering Pump), hydraulic circuits, hoses, valves, lift gear, power lift (front and rear), trailer brake hydraulics, and implement actuation. Chassis And Drivetrain Chassis And Drivetrain: Detailed information on front axle support, axle housing, suspension systems, track rods, steering cylinder, frames, cardan shafts, and differential lock actuation. Cab And Controls Cab And Controls: Covers cab mounting and suspension, driver seat, heating, ventilation, windscreen wipers, air conditioning system (compressor, lines, evaporator, condenser), and the instrument panel. Special Equipment Special Equipment: Includes sections on front PTO, live PTO, front wheel drive, trailer hitches (coupling, hydraulic trailer brake), and front loaders (mounting frame, hydraulic implement actuation). Diagnostics Diagnostics: Troubleshooting procedures for all major systems, likely including diagnostic codes or procedures related to the FENDIAS electronic system and Engine EDC. Repair Procedures Repair Procedures: Step-by-step instructions for component removal, installation, adjustment, and overhaul for all covered systems and parts. Special Tools Special Tools: Includes information on specialized tools...