🏷️ Basic Information Identification Make: International Harvester Model: 686 Tractor 👋 Introduction Market Position Target Audience: Mechanics, service technicians, and DIY enthusiasts working on the International Harvester 686 Tractor. Competitive Analysis Value Proposition: Provides essential, detailed, and step-by-step repair information to enable efficient and accurate servicing, reducing downtime and repair costs. Key Features Content Focus: Emphasis on clear explanations, sequential procedures, and visual aids for user comprehension. Instant Access: Available via instant download upon completion of payment. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive repair and service for the International Harvester 686 Tractor. Page Count Page Count: 303 Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine disassembly, assembly, troubleshooting, adjustments, specifications, rebuild procedures. Fuel System: Fuel tank, fuel pump, fuel filters, carburetor/injection system (if applicable), fuel lines. Cooling System: Radiator, water pump, thermostat, hoses, fan, coolant specifications. Lubrication System: Oil pump, oil filter, oil pan, lubrication passages, oil specifications. Electrical System: Starter, alternator, battery, ignition system, lighting, wiring diagrams, troubleshooting. Transmission System: Clutch, gearbox, PTO, hydraulic transmission components, service and repair procedures. Hydraulic System: Hydraulic pump, control valves, cylinders, filters, reservoir, troubleshooting, fluid specifications. Steering System: Steering mechanism, linkage, power steering components (if equipped), adjustments. Braking System: Brake master cylinder, wheel cylinders, brake shoes/pads, brake lines, adjustments, troubleshooting. Front Axle And Steering Knuckles: Front axle components, kingpins, tie rods, wheel bearings. Rear Axle And Drive Shaft: Rear axle housing, differential, drive shafts, final drives. Power Takeoff Pto: PTO engagement, drive components, PTO shaft, maintenance. Three Point Hitch And Linkages: Hitch components, hydraulic lift, draft control, adjustments. Operator Station And Controls: Seat, steering wheel, levers, pedals, instrument panel. Body And Chassis: Frame, fenders, hood, mounting points. Procedures Included Maintenance Procedures: Scheduled maintenance, lubrication, filter replacement, fluid checks and changes. Troubleshooting Guidance: Systematic diagnosis of common problems and fault finding. Repair Procedures: Step-by-step instructions for component repair and replacement. Disassembly And Assembly: Detailed procedures for taking apart and putting together various components. Adjustment Procedures: Precise instructions for calibrating and adjusting systems. Diagnostics And Testing: Methods for testing component functionality and system performance. Special Tool Identification: Identification and usage instructions for specialized service tools. Technical Depth Depth Of Coverage: Comprehensive, bumper-to-bumper coverage suitable for mechanics and experienced DIY users. Detail Level: Includes detailed explanations, pictorial diagrams, exploded views, drawings, and photos. Factory Specifications: Provides factory specifications, allowable limits, and tightening torques. 📊 Manual Specifications File Format File Format Details: PDF format, ensuring compatibility across operating systems (Windows, Mac, Linux). Print Quality Printable: Yes, all pages are printable. Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) Software Requirement Software Requirement: Adobe Reader (or compatible PDF viewer). ⚙️ Engine Specifications Primary Engine Engine Type: Diesel (Specific engine models for the 686 Tractor would include D-236, D-282, DT-282 - manual would detail these). Performance Horsepower Range: Varies by specific engine and configuration, but typically in the 60-75 PTO horsepower range. Torque Specifications: Detailed torque values for critical engine components are included in the manual. Fuel System Fuel Type: Diesel fuel. Injection System: Details on injection pump timing, nozzle testing, and overhaul procedures. 🔧 Transmission Standard Transmission Type: Multiple transmission options were available, including manual gearboxes (e.g., 8-speed synchronized, 5-speed constant mesh) and potentially torque amplifier (TA) options. Optional Torque Amplifier: Information regarding the operation, maintenance, and repair of the Torque Amplifier (TA) system is a key feature. Features Gear Ratios: Specific gear ratios for all available transmissions will be detailed in the manual. Pto Speeds: Information on standard PTO speeds (e.g., 540 RPM, 1000 RPM) and their operation. 📐 Dimensions Exterior Wheelbase: Approximately 84 inches (2134 mm). Weights Operating Weight: Approximately 5,000 - 6,000 lbs (2268 - 2722 kg), depending on configuration. 🛡️ Safety Features Ratings Safety Features Emphasis: Manual includes specific notes, cautions, and warnings (DANGER, CAUTION, NOTE) for safe operation and service. Active Features Operator Safety: Procedures for safe operation, maintenance, and adjustments to ensure operator safety. Passive Features Rollover Protection: While not standard on all models, the manual may cover installation or maintenance of optional ROPS (Rollover Protective Structures). 💡 Technology Features Infotainment Instrument Panel: Basic instrumentation including tachometer, oil pressure gauge, temperature gauge, ammeter, and warning lights. Driver Assistance Operator Controls: Mechanical controls for engine speed, transmission shifting, hydraulics, and steering. Connectivity Electrical System Design: 12-volt electrical system with detailed wiring diagrams provided for troubleshooting and repair. 🔧 Maintenance Service Intervals Engine Oil Change Interval: Typically every 250 hours or annually, with specific recommendations in the manual. Hydraulic Fluid Change Interval: Refer to manual for recommended intervals, often based on operating hours and fluid condition. Fluid Specifications Engine Oil Type: API CD or CE service classification, SAE 15W-30 or 10W-30 depending on ambient temperature. Manual will specify exact type and...