🏷️ Basic Information Identification Make: International Harvester Model: 1086 Tractor Model Code: 1086 Product Type: Factory Service Repair Manual 👋 Introduction Market Position Market Segment: Heavy-duty agricultural tractor, representing a significant model in International Harvester's tractor lineup during its production era. Key Features Engine Power: Known for robust diesel engine performance, delivering substantial horsepower and torque for demanding farm tasks. Transmission Type: Often equipped with a high-torque-capacity transmission, such as the Power Shift (Hydra-Shuttle), offering flexible gear selection. Hydraulic Capacity: Features a capable hydraulic system for operating various implements and attachments. Operator Comfort: Offered various cab options providing a degree of operator comfort for extended working periods. Competitive Analysis Competitors: Competed with tractors from John Deere (e.g., 4040, 4240), Case IH (e.g., 970, 1070), Massey Ferguson, and others in the high-horsepower row-crop tractor segment of the late 1970s and early 1980s. 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Secondary Coverage: Maintenance, Troubleshooting, Diagnostics Page Count Estimated Page Count: N/A (Digital Format) Manual Type Manual Type: Factory Service Repair Manual / Workshop Manual / Troubleshooting Manual / Maintenance Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, fuel system, lubrication system, cooling system, intake and exhaust systems, engine timing, cylinder head, crankshaft, pistons, connecting rods, camshaft, valve train. Transmission Systems: Power Shift transmission (Hyrda-Shuttle), clutch, gearbox, final drives, differential, PTO (Power Take-Off). Hydraulic Systems: Hydraulic pump, control valves, cylinders, remote hydraulic outlets, hitch control system, steering hydraulics. Electrical Systems: Starter, alternator, battery, ignition system (if applicable), lighting, wiring harnesses, gauges, dashboard indicators, troubleshooting electrical faults. Chassis And Suspension: Front axle, rear axle, steering system (including power steering), braking system, wheels, tires. Operator Station And Body: Operator's cab (if equipped), controls, seating, sheet metal, fenders, platform. Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacement, lubrication points, pre-operation checks, post-operation checks. Repair Procedures: Step-by-step repair instructions for all major components and systems, including disassembly, inspection, repair, and reassembly. Troubleshooting Guides: Diagnostic charts, symptom-based troubleshooting, common problem identification and solutions. Technical Specifications: Detailed specifications for all components, including torque values, clearances, tolerances, fluid capacities, electrical specifications. Wiring Diagrams: Comprehensive electrical wiring diagrams for all systems, aiding in diagnosis and repair. Engine Timing Adjustment: Procedures for setting and adjusting engine timing. Injector Testing And Replacement: Detailed steps for testing and replacing fuel injectors. Transmission Shift Lever Adjustment: Procedures for adjusting the powershift control levers. Hydraulic Pump Testing And Replacement: Instructions for diagnosing and replacing the main hydraulic pump. Brake System Overhaul: Detailed instructions for servicing and overhauling the braking system. Front Axle And Steering Repair: Guidance on the repair and maintenance of the front axle and steering components. Technical Depth Depth: Comprehensive factory-level detail covering routine maintenance to major overhauls and complex diagnostics. Diagnostic Charts: Inclusion of comprehensive diagnostic charts for various operational issues. Torque Specifications: Exact torque values provided for critical fasteners throughout the tractor. Clearances And Tolerances: Precise measurements for component clearances and operational tolerances. Special Tool Recommendations: Indication of any specialized tools required for specific repair procedures. 📊 Manual Specifications File Format File Format: PDF Searchability: Searchable text within PDF Compatibility: Compatible with Adobe PDF Reader, usable on Windows and Mac operating systems. Print Quality Print Quality: High-resolution scans suitable for printing Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Make: International Harvester Engine Model: D-358 (Typically) Engine Type: Naturally Aspirated Diesel Cylinders: 6 Displacement: 358 cubic inches (5.86 Liters) Performance Rated Horsepower: Approximately 110-125 PTO horsepower (varies by specific configuration and year) Peak Torque: N/A (Specific data often varies, but designed for high low-end torque) Fuel System Fuel Type: Diesel Injection System: Roosa Master or Simms inline injection pump (common types) 🔧 Transmission Standard Transmission Type: T-146 Powershift (Hydra-Shuttle) with 16 forward and 8 reverse speeds. Optional Optional Transmission: N/A (Powershift was a key feature of this model) Features Clutch Type: Dual-clutch arrangement for Powershift engagement. Pto Speeds: Standard 540/1000 RPM PTO (Power Take-Off). 📐 Dimensions Exterior Wheelbase: Approximately 94 inches (2388 mm) Length: Approximately 148 inches (3759 mm) without implements Width: Approximately 77 inches (1956 mm) at rear axle Weights Operating Weight: Approximately 8,500 - 9,500 lbs (3856 - 4309 kg), depending on configuration. 💡 Technology Features Infotainment Infotainment System: N/A (Focus is on core agricultural functionality, not entertainment systems). Driver Assistance Driver Assistance Features: N/A (No electronic driver assistance systems in the modern sense). Connectivity Connectivity Features: N/A (No digital connectivity features). 🔧 Maintenance Service Intervals Engine Oil Change: Every 250 hours or annually, whichever comes first. Fuel Filter Replacement: Every 500 hours or annually. Air Filter Service: Check daily, service as needed based on operating conditions. Typically every 250 hours. Fluid Specifications Engine Oil Type: API CD or CE rated diesel engine oil, SAE...