🏷️ Basic Information Identification Make: International Harvester Model: 986 / 1086 Codes Vehicle Type: Tractor 👋 Introduction Market Position Target Audience: Owners, operators, and mechanics of IH International Harvester 986 and 1086 tractors. Key Features Comprehensiveness: Complete and intact, covering all models, engines, trim, and transmission types without missing or corrupt parts. Professional Quality: Same quality manual used in local service/repair shops, written by manufacturers. Cost Savings: Enables users to perform repairs and maintenance themselves, saving significant costs. Accessibility: Instant download provides immediate access to crucial repair information. Usability: Features step-by-step instructions, diagrams, pictures, and detailed explanations for ease of use. 📋 Manual Details Coverage Areas Primary Models Covered: IH International Harvester 986, IH International Harvester 1086 All Models Trims Transmissions Engines: True Page Count Estimated Page Count: Hundreds of pages Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Service: Detailed service, maintenance, and troubleshooting for all engine types. Lubrication System: Comprehensive coverage of the lubrication system. Cooling System: Detailed information on the cooling system. Fuel System: Service and maintenance for the fuel system. Clutch Service: Complete procedures for clutch disassembly and service. Transmission Service: In-depth repair and maintenance for the transmission. Drive Chain Sprockets: Service and maintenance for drive chains and sprockets. Rear Axle Service: Detailed axle repair and maintenance. Brake System: Complete brake service and repair procedures. Front Axle Service: Front axle service and repair information. Steering System: Service and troubleshooting for the steering system. Shocks Suspension: Information related to shock absorbers and suspension. Body Work: Procedures for body work and related components. Intake Exhaust Systems: Maintenance and repair for intake and exhaust systems. Hydraulic System: Comprehensive coverage of the hydraulic system. Electrical System: Service and troubleshooting for the electrical system, including wiring diagrams. Routine Maintenance: Detailed instructions for routine maintenance tasks. Troubleshooting: Advanced troubleshooting guides for common and complex issues. Wiring Diagrams: Includes original wiring diagrams. Procedures Included Disassembly Servicing: Step-by-step procedures for disassembly and servicing of major components. General Repair: General repair procedures applicable to the tractors. Separation Procedures: Detailed instructions for separating major tractor assemblies. Component Rebuild: Instructions for rebuilding key components. Technical Depth Depth: Professional-grade, comprehensive diagnostic, repair, and maintenance information. User Level: Suitable for professional technicians and experienced DIY users. 📊 Manual Specifications File Format Format: PDF Download Type: Instant Download Print Quality Printability: Full Printable Zoom Functionality: Zoom IN/OUT enabled Binding Type Binding Type: Digital (PDF) Paper Type Paper Type: Not Applicable (Digital) Requirements Software Requirements: Adobe PDF Reader, WinZip Operating System Compatibility: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: Diesel (specifics depend on model/configuration, typically DT-466 or similar IH diesel engines) Performance Horsepower Range: Refer to specific model variants within the manual (e.g., 986 typically in the 100-120 HP range, 1086 in the 120-140 HP range) Torque Specifications: Detailed torque specifications for engine components found within the manual. Fuel System Fuel Type: Diesel Injection System: Information on diesel injection pump and injector service covered. 🔧 Transmission Standard Transmission Type: Manual, synchronized transmission (e.g., IH 16-speed power shift or 10-speed constant mesh) Optional Optional Transmission: Power Shift options available on some configurations (covered in manual). Features Gear Ratios: Detailed gear ratios and transmission assembly information are included. Transmission Fluid Specifications: Recommended transmission fluid types and capacities detailed. 📐 Dimensions Weights Operating Weight: Refer to manual for specific model weights (typically 9,000-12,000 lbs or more depending on configuration). Drawbar Horsepower: Technical specifications for drawbar horsepower are usually included in tractor manuals. 💡 Technology Features Infotainment Infotainment Features: Tractors of this era typically have basic radio options; the manual covers the electrical systems relevant to these. Driver Assistance Driver Assistance Features: Focus is on mechanical and electrical systems, not modern driver assistance features. Connectivity Connectivity Options: No electronic connectivity features typically found on these models. 🔧 Maintenance Service Intervals Engine Oil Change: Specific intervals (e.g., every 100-250 hours) for engine oil and filter changes are detailed in the manual. Hydraulic Fluid Change: Recommended intervals for hydraulic fluid and filter replacement provided. Fluid Specifications Engine Oil Type: Manual specifies recommended diesel engine oil viscosity grades (e.g., SAE 15W-40) and API service classifications. Hydraulic Fluid Type: Specifications for hydraulic/transmission fluid (e.g., IH Hy-Trans or equivalent) will be listed. Coolant Specifications: Recommended coolant type and mixture ratios for the cooling system are included. Known Issues Common Wear Points: The manual would detail common wear points and their troubleshooting, such as clutch wear, hydraulic pump issues, and transmission synchro wear. Electrical Gremlins: Troubleshooting common electrical issues like starter solenoid problems, lighting circuit faults, and gauge failures is covered. Hydraulic System Performance: Common hydraulic performance issues, such as slow or erratic lift, are addressed with diagnostic steps. 📚 Vehicle History Brand Heritage Brand History: International Harvester (IH) was a major American...