🏷️ Basic Information Identification Make: International Harvester Model: 786, 886, 986, 1086 Codes Product Name: International Harvester 786 886 986 1086 Tractor WSM Service Repair Manual 👋 Introduction Market Position Target User: Owners, operators, mechanics, and technicians working on International Harvester 786, 886, 986, and 1086 tractors. Key Features Benefit Statement: Enables users to perform their own repairs, saving significant costs and downtime. Content Highlight: Features step-by-step instructions, detailed illustrations, and wiring diagrams for all repair areas. Convenience: Printable pages allow for easy use in workshop environments without risking damage to the original document. Competitive Analysis Market Segment: Medium-horsepower farm tractors, competing with models from John Deere, Case IH, Ford, and others of the era. 📋 Manual Details Coverage Areas Covered Models: International Harvester 786, 886, 986, 1086 Tractors Manual Type Type: Workshop Service Manual (WSM) / Service Repair Manual Language Language: English Format File Format: PDF Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader Compatibility Operating Systems: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine Service: Complete engine overhaul, diagnostics, repair, and adjustment procedures for all engine variants. Transmission Service: Service and repair for hydrostatic transmission, power shift, and gear drive systems, including clutch and PTO operations. Hydraulic System Service: Repair and maintenance of the tractor's hydraulic system, including pump, valves, cylinders, and auxiliary equipment. Electrical System Service: Detailed wiring diagrams, troubleshooting guides, and repair procedures for all electrical components, starting, charging, and lighting systems. Chassis And Drive Train: Service for front axle, rear axle, brakes, steering, and drivetrain components. Cooling System Service: Maintenance and repair of the radiator, thermostat, fan, and coolant passages. Fuel System Service: Diagnosis and repair of fuel injection systems, fuel pumps, filters, and lines. Operator Station Service: Repair of cabin, controls, seating, and HVAC systems (if applicable). Front Axle Steering: Service and repair of steering mechanisms, front axle components, and wheel alignment. Brake System Service: Maintenance and repair of hydraulic and mechanical brake systems. Procedures Included Routine Maintenance: Detailed procedures for all routine checks, lubrication, fluid changes, and filter replacements. Troubleshooting Guides: Comprehensive diagnostic trees and fault finding procedures for common and complex issues. Disassembly And Reassembly: Step-by-step instructions with detailed illustrations for component removal, overhaul, and installation. Adjustment And Calibration: Procedures for adjusting engine timing, clutch engagement, hydraulic pressures, and other critical parameters. Part Replacement: Guidance on replacing individual components and sub-assemblies. Diagnostics: In-depth diagnostic procedures for identifying and resolving mechanical and electrical faults. Technical Depth Depth Of Coverage: Comprehensive, covering all aspects from basic maintenance to complete overhaul and advanced diagnostics. Manual Type Manual Scope: Full Workshop Service Manual (WSM) / Repair Manual. Manual Depth Diagnostic Tools: Covers procedures requiring common mechanic's tools as well as specialized diagnostic equipment and torque specifications. 📊 Manual Specifications File Format Print Quality: Full Printable (High Resolution) Binding Type Binding: N/A (Digital PDF Download) Paper Type Paper Type: N/A (Digital PDF Download) Searchability Text Search: Searchable text within the PDF document. Print Quality Image Quality: High-quality images and diagrams suitable for printing and clear viewing. ⚙️ Engine Specifications Primary Engine Engine Families: DT-360, DT-466 (Diesel) Engine Details Engine Displacement 786 886: 360 cubic inches (approx. 5.9 Liters) Engine Displacement 986 1086: 466 cubic inches (approx. 7.6 Liters) Fuel System Fuel System Type: Direct Injection Diesel with Bosch or CAV/Lucas fuel injection pumps. Performance Horsepower Range: Varied by model, generally from ~75 HP (786) to ~125 HP (1086). Torque Characteristics: Designed for robust low-end torque delivery essential for agricultural applications. Maintenance Considerations Valve Lash Adjustment: Critical maintenance procedure detailed in the manual. 🔧 Transmission Standard Transmission Type 786 886: Dyna-Life (16-speed partially synchronized transmission) or optional Hi-Lo transmission. Transmission Type 986 1086: Power-Shift (14-speed or 16-speed) transmission. Optional Optional Transmission Types: Certain models may have had other factory or dealer-installed options, including hydrostatic. Features Power Takeoff Pto: Standard 540/1000 RPM PTO, with service and maintenance procedures covered. Maintenance Transmission Fluid Type: Specific IH specification fluids (e.g., Hy-Trans) or equivalent, details provided in manual. Transmission Fluid Capacity: Capacity varies by transmission type; specific capacities listed in manual. 📐 Dimensions Exterior Wheelbase: Varies by model, typically around 90-96 inches. Weights Operating Weight: Approximately 8,000 - 11,000 lbs, depending on configuration. Drawbar Horsepower Rating: Designed to deliver substantial pulling power for agricultural implements. 🛡️ Safety Features Active Features Braking System: Hydraulic disc brakes, with emphasis on proper maintenance and adjustment for safe operation. Passive Features Operator Station Design: Designed with operator safety in mind, though ROPS (Roll-Over Protective Structure) may be an aftermarket or later addition depending on the specific tractor's production year and configuration. 💡 Technology Features Infotainment Operator Interface: Basic analog gauges for engine parameters, fuel level, and PTO engagement. Focus on functional operation rather than advanced electronics. Driver Assistance Steering System: Power steering standard on most models for improved maneuverability....