🏷️ Basic Information Identification Make: International Harvester Model: 986 / 1086 Product Type: Factory Service Repair Manual Generation Generation Identifier: 3rd Generation (86 Series) Codes Common Model Codes: 986, 1086 👋 Introduction Market Position Target Audience: Owners, technicians, and enthusiasts of International Harvester 986 and 1086 tractors Competitive Analysis Value Proposition: Provides factory-level repair and maintenance information, enabling significant savings on labor costs ($50-$60 per hour). Key Features Content Authenticity: Genuine factory repair data, mirroring information used by professional technicians. Usability: Easy to navigate with a numbered table of contents, search function, and printable pages. Completeness: Covers fundamentals to advanced troubleshooting and complete rebuilds for all styles. 📋 Manual Details Coverage Areas Primary Coverage: International Harvester 986 & 1086 Tractors Styles Covered: All Styles Page Count Estimated Page Count: Hundreds of Pages (Specific count not provided, but described as 'COMPLETE' and 'extensive') Manual Type Manual Classification: Factory Service Repair Manual Language Language Supported: English Format Digital Format: PDF Download 📖 Manual Coverage Systems Covered Engine Service: Full coverage including disassembly, servicing, and diagnostics Lubrication System: Detailed maintenance and repair procedures Cooling System: Service procedures for cooling system components Fuel System: Comprehensive fuel system servicing and troubleshooting Clutch System: Disassembly, inspection, and repair of the clutch Transmission System: Service for transmission components and operation Drivetrain And Axles: Coverage for drive chains, sprockets, rear axle, and front axle Braking System: Repair and maintenance for brake systems Steering System: Service and adjustment for steering mechanisms Hydraulic System: Detailed procedures for hydraulic system maintenance and repair Electrical System: Troubleshooting, service procedures, and wiring diagrams Bodywork And Chassis: Includes body work, shocks, intake, and exhaust systems Procedures Included Routine Maintenance: Guidance on regular servicing tasks Disassembly And Servicing: Step-by-step procedures for component removal and service Advanced Troubleshooting: Diagnosing and resolving complex issues Rebuild And Restoration: Comprehensive guidance for complete overhauls Tuning And Adjustment: Procedures for optimizing performance Technical Depth Diagnostic Capability: Advanced diagnostic procedures for identifying faults Repair Detail Level: In-depth, step-by-step instructions with critical notes and warnings Illustrations And Diagrams: Includes numerous detailed illustrations, drawings, photos, and wiring diagrams Factory Information Authenticity: Actual genuine factory service manuals, not 3rd party 📊 Manual Specifications File Format Digital File Type: PDF Compatibility: Compatible with all PC based Windows OS and Mac Print Quality Printability: Fully printable, no restrictions, print individual pages or entire manual Resolution: High resolution Binding Type Binding Style: N/A (Digital Download, printable) Paper Type Paper Format: N/A (Digital Download, printable) Software Requirements Required Reader: Adobe PDF Reader Delivery Method Delivery Type: Instant download link on checkout page after payment ⚙️ Engine Specifications Primary Engine Engine Family: D-Series (Diesel) Engine 986 Common: International Harvester D-360 (360 cubic inch, 6-cylinder Diesel) Engine 1086 Common: International Harvester DT-414 (414 cubic inch, 6-cylinder Diesel Turbocharged) Performance Horsepower 986 Approx: 93 PTO HP (May vary with specific configurations) Horsepower 1086 Approx: 116 PTO HP (May vary with specific configurations) Fuel System Fuel Type: Diesel Injection System: Rotary injection pump (e.g., Bosch or CAV/Stanadyne) and injectors (coverage detailed in manual) 🔧 Transmission Standard Transmission Type 986: 10-speed PowerShift (fully synchronized) Transmission Type 1086: 10-speed PowerShift (fully synchronized) Optional Transmission Options: While PowerShift was standard for these models, the manual would cover any variations or alternative configurations if applicable from the factory. Features Powershift Operation: Provides on-the-go gear changes without clutching, enhancing productivity. 📐 Dimensions Exterior Wheelbase 986 Approx: 99 inches (2515 mm) Wheelbase 1086 Approx: 99 inches (2515 mm) Weights Operating Weight 986 Approx: 8,600 lbs (3,900 kg) (Varies with configuration) Operating Weight 1086 Approx: 9,500 lbs (4,300 kg) (Varies with configuration) 🛡️ Safety Features Ratings Roll Over Protection: ROPS (Roll-Over Protective Structure) was often an option or factory-installed on these models. Manual covers relevant components and maintenance. Active Features Brake System Type: Internal expanding shoe brakes (typically, manual will detail specifics) Passive Features Operator Station: Design considerations for operator comfort and safety are inherent in the factory documentation. 💡 Technology Features Infotainment Operator Interface: Basic analog gauges and controls typical of agricultural machinery from the 1970s/early 1980s. Driver Assistance Traction Control: No electronic traction control systems; relies on mechanical four-wheel drive (if equipped) and operator skill. Connectivity Diagnostic Ports: Onboard diagnostics would primarily be mechanical checks and visual inspections, supplemented by the manual's troubleshooting guides. 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 250 operating hours (refer to manual for precise intervals based on operating conditions and oil type) Transmission Hydraulic Fluid Change: Typically every 1,000 operating hours (refer to manual for exact capacity and filter change recommendations) Fluid Specifications Engine Oil Specification: API CD or MIL-L-2104C/D service category diesel engine oil, viscosity SAE 15W-40 or 10W-30 depending on ambient temperature (refer to manual for precise recommendations). Hydraulic Fluid Specification: IH Hy-Tran (or equivalent meeting specification B-6) Known Issues Common Wear Points: Clutch wear, hydraulic pump reliability,...