🏷️ Basic Information Identification Make: International Harvester Model: 786, 886, 986, 1086 Tractor Product Type: Factory Service Repair Manual 👋 Introduction Market Position Positioning: Essential diagnostic and repair resource for owners and technicians of International Harvester 786, 886, 986, and 1086 tractors. Competitive Analysis Competitors: Provides factory-level detail often superior to aftermarket manuals, ensuring accuracy for specialized IH components. Key Features Convenience: Instant download access, searchable text for quick information retrieval, ability to print specific sections as needed. Cost Savings: Empowers users to perform their own maintenance and repairs, significantly reducing labor costs. Knowledge Base: Provides in-depth understanding of tractor systems, crucial for efficient operation and emergency repairs. 📋 Manual Details Coverage Areas Primary Coverage: International Harvester 786, 886, 986, 1086 Tractors Additional Coverage: Troubleshooting guides, maintenance schedules, parts information (often referenced), and technical specifications. Page Count Estimated Pages: Varies by specific factory manual, typically 500-1500+ pages for comprehensive coverage. Manual Type Type: Factory Service and Repair Manual Type Detail: Factory Service Repair Manual; also referred to as Shop Manual or Workshop Manual. Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Engine overhaul, fuel system, lubrication, cooling system, starting and charging systems, troubleshooting. Transmission: Manual transmission, power shift transmission (if applicable), differential, final drives, PTO (Power Take-Off). Hydraulic System: Hydraulic pump, control valves, cylinders, system pressure checks, troubleshooting, fluid specifications. Electrical System: Wiring diagrams, lighting, starter motor, alternator, battery, ignition system (if applicable), instrument panel. Chassis And Drive: Front axle, rear axle, steering system, brakes (mechanical and hydraulic), clutch, wheel and tire specifications. Operator Station: Cab components, controls, seating, instrumentation, heating and air conditioning (if equipped). Body And Frame: Sheet metal, fenders, drawbar, hitch, maintenance of structural components. Procedures Included Maintenance: Scheduled maintenance, lubrication points, fluid change intervals, filter replacement. Troubleshooting: Diagnostic charts, common problems and their solutions, systematic fault finding. Repair: Step-by-step disassembly, inspection, repair, and reassembly procedures for all major components. Diagnostics: Procedures for checking engine performance, hydraulic pressures, electrical circuits, and drivetrain operation. Adjustments: Brake adjustments, clutch adjustments, linkage adjustments, hydraulic valve adjustments. Specifications: Torque specifications, clearances, fluid capacities, pressure settings, electrical resistance values. Wiring Diagrams: Includes comprehensive wiring diagrams for electrical systems, aiding in troubleshooting and repair of lighting, starting, and charging circuits. Torque Specs: Detailed torque specifications for critical fasteners throughout the tractor, ensuring proper assembly and preventing component failure. Technical Depth Depth: Comprehensive, covering from routine maintenance to major component overhaul and repair. Suitable for both professional mechanics and skilled owners. Component Rebuild: Procedures for complete disassembly, inspection, and rebuilding of major engine, transmission, and hydraulic components. 📊 Manual Specifications File Format Format: PDF Compatibility: Compatible with all Windows and Mac operating systems. Software Requirements: Adobe PDF Reader, WinZip or equivalent decompression software. Print Quality Quality: High-resolution, digitally scanned factory documentation for clear text and legible diagrams. Binding Type Binding: Digital download (not a physical book). Paper Type Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Family: International Harvester DT-402 / DT-466 Diesel (Commonly found in these models, though variations may exist). Displacement: DT-402: 402 cubic inches (6.6 Liters); DT-466: 466 cubic inches (7.6 Liters) Bore X Stroke: DT-402: 4.31 in x 4.75 in; DT-466: 4.59 in x 4.75 in (approximate values, consult manual for exact figures). Engine Type: Vertical, water-cooled, four-stroke diesel engine. Performance Horsepower Range: Model dependent, typically ranging from 70 HP (786) to over 120 HP (1086) in various configurations. Torque Range: Significant torque output suitable for heavy draft work, specific values vary by engine and tuning. Fuel System Fuel Type: Diesel Injection System: Bosch inline injection pump or distributor type, depending on exact model and year. Fuel Filter Part Numbers: Various aftermarket equivalents available; manual will specify IH part numbers. 🔧 Transmission Standard Transmission Type: Various configurations including 8-speed synchromesh, 16-speed PowerShift (full-clutch transmission), and 10-speed fully synchronized transmissions. Optional Optional Transmission: Optional PowerShift transmissions offered on many models for on-the-go gear changes. Features Clutch: Dual-stage clutch for independent PTO and transmission operation on some models. Pto: Live PTO or ground-speed PTO options available. Rear Axle: Heavy-duty rear axle with differential lock. Gear Selection: Manual shifting with synchronized gears or PowerShift planetary gear sets depending on transmission option. 📐 Dimensions Exterior Wheelbase: Varies by model, typically around 90-100 inches. Length: Varies by model, often around 140-160 inches. Weights Operating Weight: Typically in the 7,000 - 10,000 lbs range, depending on configuration and options. Drawbar Horsepower: Approximate: 786 (65-70 HP), 886 (80 HP), 986 (90 HP), 1086 (100-105 HP). 💡 Technology Features Infotainment Features: Basic operator controls and instrumentation. No modern infotainment systems. Driver Assistance Features: Mechanical and hydraulic systems providing power steering and braking assistance. No electronic driver aids. Connectivity Features: No electronic connectivity features. Primarily mechanical and electrical systems. 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 250 hours of operation or...