Basic Information Identification Make: International Harvester Model: 786 Tractor Product Type: Full Service Repair Manual Introduction Market Position Target Audience: Professional Technicians, Farm Mechanics, Tractor Enthusiasts, Restoration Projects Key Features Ease Of Use: Numbered instructions, bold figure numbers, numbered table of contents, clear illustrations Visual Guidance: Detailed illustrations, drawings, photos, and enlarged insets for part identification Critical Information: Notes, cautions, and warnings integrated throughout procedures Manual Philosophy Repair Focus: Comprehensive repair, maintenance, rebuild, refurbish, and restoration Manual Details Coverage Areas Primary Coverage: International Harvester 786 Tractor Page Count Estimated Page Count: Extensive (Detailed sub-steps, numbered instructions, comprehensive diagnostics) Manual Type Type: Full Service Repair Manual Language Language: English Format Digital Format: PDF Manual Coverage Systems Covered Engine: Comprehensive engine repair, overhaul, diagnostics, and tuning Transmission: Detailed repair and maintenance procedures for the transmission system Electrical: In-depth electrical system diagnostics, troubleshooting, and wiring diagrams Hydraulics: Coverage of hydraulic system components, repair, and maintenance Drivetrain: Axles, differentials, and PTO system repair and maintenance Braking System: Brake system diagnosis, repair, and adjustment Cooling System: Radiator, fan, and coolant system servicing Fuel System: Fuel injection system, pump, and injector servicing Ignition System: Spark plug, coil, and ignition timing procedures Lubrication System: Oil pump, filter, and lubrication point maintenance Steering System: Steering box, linkage, and power steering system repair Suspension: Front axle and suspension component servicing Body And Frame: Body panel repair, cab maintenance, and frame inspection Procedures Included Maintenance: Regular maintenance procedures, service schedules, and fluid checks Troubleshooting: Comprehensive diagnostic guides and troubleshooting for common issues Repair: Detailed step-by-step repair instructions for all major components Rebuilding: Procedures for complete engine, transmission, and hydraulic rebuilds Overhaul: In-depth overhaul instructions for various tractor systems Restoration: Guidance for refurbishing and restoring the tractor Diagnostics: Diagnostic flowcharts and procedures for identifying faults Wiring Diagrams: Detailed electrical wiring diagrams for all circuits Technical Depth Depth: Professional Technician Level (Suitable for Do-It-Yourself Mechanics) Manual Specifications File Format Digital Format: PDF Print Quality Printability: Full Printable Pages Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinRAR Compatibility Operating Systems: All Versions of Windows & Mac Engine Specifications Primary Engine Engine Model: Likely D-series Diesel (e.g., D-239, D-268, or similar based on IH 786 model) Performance Estimated Horsepower: Approximately 70-80 PTO horsepower (specific to engine variant) Estimated Torque: Significant torque output for heavy-duty applications (specific figures vary) Fuel System Fuel Type: Diesel Injection System: Likely Bosch inline injection pump or similar rotary type Cooling System Cooling Type: Liquid-cooled Transmission Standard Transmission Type: Likely a synchronized transmission with multiple forward and reverse gears (e.g., 16-speed Synchro-Range or similar) Optional Optional Features: Possible Power Steering, Hydro-Vated transmission (less common for this model but worth noting potential variations) Features Gear Selection: Manual gear selection via shift levers Dimensions Exterior Wheelbase: Variable based on configuration, but typical for the era (specifics in manual) Weights Operating Weight: Substantial weight for stability, typically in the 6,000-8,000 lb range (refer to manual for exact) Technology Features Infotainment Features: Basic operator controls, analog gauges for engine RPM, oil pressure, temperature, fuel level Driver Assistance Features: ROPS (Roll-Over Protective Structure) likely standard or optional, seat belts Maintenance Service Intervals Engine Oil Change: Typically every 250 hours or annually (specifics in manual) Fuel Filter Replacement: As per manufacturer recommendation, often with oil changes or as needed Hydraulic Fluid Change: Regular intervals, e.g., every 1000-1500 hours (specifics in manual) Fluid Specifications Engine Oil: Diesel engine oil, typically API CD or CE rated, with specific viscosity (e.g., 15W-40) as per manual Hydraulic Fluid: IH Hy-Tran or equivalent UTF (Universal Tractor Transmission Fluid) with specified properties Coolant: Ethylene glycol based antifreeze with corrosion inhibitors, typically a 50/50 mix Known Issues Common Wear Points: Hydraulic pump wear, clutch wear, PTO clutch wear, potential for injector pump issues, electrical connections Typical Repairs: Engine overhauls, transmission rebuilds, hydraulic cylinder resealing, electrical system troubleshooting Vehicle History Brand Heritage Manufacturer: International Harvester (IH), a historic American manufacturer of agricultural and industrial machinery Model Evolution Series: Part of the IH 86-series tractors, known for their comfort and performance Production Production Period: Typically produced in the late 1970s to early 1980s