Basic Information Identification Make: International Harvester Model: 786, 886, 986, 1086 Model Generations: Likely covers the primary production run of these models. Introduction Market Position Target Audience: Farm owners, mechanics, and DIY enthusiasts seeking to maintain and repair their International Harvester 786, 886, 986, or 1086 tractors. Competitive Analysis Value Proposition: Provides cost savings by enabling self-repair and detailed knowledge for efficient maintenance. Key Features Accessibility: Instant download format allows for immediate access to repair information. Comprehensive Scope: Covers a wide range of repair, maintenance, and diagnostic procedures across all major tractor systems. Self Reliance: Empowers users to perform repairs independently, ensuring quality and understanding. Manual Details Coverage Areas All Systems Covered: Yes, extensive coverage of all major tractor systems. Page Count Estimated Page Count: Typically 800-1500+ pages for a comprehensive service manual of this era and scope. Specific number not provided in product info. Manual Type Manual Type: All Service Repair Manual / Workshop Manual Language Language: English Format Format: PDF Download Manual Coverage Systems Covered Engine Service Repair: Comprehensive coverage including disassembly, assembly, component testing, overhaul procedures, and specifications. Transmission Service Repair: Detailed procedures for mechanical and powershift transmissions, including clutch packs, gears, shafts, and hydraulic controls. Brake System: Diagnosis, repair, and adjustment of hydraulic and mechanical braking systems. Electrical System: Wiring diagrams, component testing, troubleshooting for charging, starting, lighting, and accessory systems. Suspension: Front axle, steering linkage, and any rear suspension components. Steering: Diagnosis and repair of hydrostatic power steering systems, including pumps, cylinders, and control valves. Cooling System: Radiator, water pump, thermostat, fan, and coolant specifications. Fuel Injection Fuel System: Maintenance and repair of diesel fuel injection pumps, injectors, filters, and fuel tanks. Chassis Body: Frame, fenders, operator station, and mounting points. Axle: Front and rear axle assemblies, including differentials and final drives. Hydraulic System: Operation, maintenance, and repair of the tractor's hydraulic pump, reservoir, filters, and control valves for implement operation. Power Take Off Pto: Service and repair of the rear PTO shaft, engagement mechanism, and related components. Operator Station: Instrumentation, controls, seating, and cab components (if applicable). Procedures Included General Maintenance: Routine checks, lubrication, fluid changes, filter replacements, and general upkeep procedures. Troubleshooting: Systematic diagnostic procedures for identifying and resolving common operational problems. Periodic Lubrication: Detailed lubrication charts and recommended intervals for all grease points and fluid levels. Disassembly Reassembly: Step-by-step instructions for dismantling and reassembling major components and sub-assemblies. Overhaul Rebuild: Complete overhaul procedures for engines, transmissions, and hydraulic systems. Component Testing: Methods for testing the performance and integrity of individual components. Technical Depth Depth Of Coverage: Comprehensive, covering everything from basic maintenance to complete component overhauls and troubleshooting. Diagnostic Capabilities: Enables advanced diagnostics for mechanical, hydraulic, and electrical issues. Manual Specifications File Format File Format: PDF Reader Requirements: Adobe PDF Reader required. Decompression Requirements: WinZip or equivalent for compressed files (if applicable). Print Quality Print Quality: Digital PDF quality, suitable for on-screen viewing and printing. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Engine Specifications Primary Engine Engine Type: Diesel Engine Family: Typically IH DT-series engines (e.g., DT358, DT402, DT414, DT436, DT466 depending on model and configuration). Performance Horsepower Range: Varies by model, typically ranging from approximately 70 HP (786) to over 120 HP (1086). Torque Specs: Specific torque figures for engine components will be detailed in the manual. Fuel System Fuel Injection System: Diesel injection, likely rotary or inline injection pumps (e.g., Bosch, CAV). Fuel Type: Diesel Fuel Cooling System Cooling Method: Liquid-cooled Transmission Standard Transmission Type: Gear transmission (e.g., 8-speed, 16-speed partial power shift) and potentially powershift options. Optional Powershift Transmission: Many of these models featured optional powershift transmissions for on-the-go gear changes. Features Gear Selection: Manual lever selection for gear ranges and possibly powershift controls. Transmission Fluid: Specific IH Hy-Tran fluid or equivalent recommended. Manual will specify. Dimensions Exterior Wheelbase: Varies by model, typically around 90-100 inches. Overall Length: Varies by model, generally in the range of 140-160 inches. Weights Operating Weight: Typically 7,000-10,000 lbs without ballast. Safety Features Ratings Rollover Protection: ROPS (Roll-Over Protective Structure) likely available or standard depending on year and configuration. Manual will cover installation and maintenance if applicable. Active Features Braking System: Service brakes (often wet disc) and parking brake. Passive Features Operator Station Design: Ergonomic considerations for control placement and visibility. Technology Features Infotainment Instrumentation: Basic dashboard instrumentation including tachometer, engine temperature, oil pressure, fuel gauge, and warning lights. Driver Assistance Operating Controls: Mechanical and hydraulic controls for transmission, hydraulics, PTO, and steering. Connectivity Electrical Connectors: Manual will detail wiring schematics and connector pinouts for troubleshooting. Maintenance Service Intervals Engine Oil Change: Typically 250-500 hours. Manual will provide exact intervals and oil type. Transmission Fluid Change: Intervals vary, often annually or after a set number of operating hours. Manual will specify. Hydraulic Fluid Change: Typically annually or...