The Case IH 685 Tractor, produced from the mid-1980s to the early 1990s, represents a robust and reliable piece of agricultural machinery, building upon the esteemed lineage of Case tractors. This model, often equipped with a Perkins AD3.152 3-cylinder diesel engine and an 8-speed manual synchromesh transmission, was designed for a variety of farm tasks, offering dependable performance and straightforward operation. Its engineering prioritizes durability and efficiency, making it a valuable asset for farm owners, mechanics, and agricultural professionals. This comprehensive Factory Service Repair Manual provides essential information for the service and repair of the Case IH 685 Tractor. It covers all major systems, including the engine, transmission, hydraulic system, electrical components, steering, brakes, and chassis. The manual details routine maintenance procedures, troubleshooting guides, step-by-step repair instructions for disassembly and assembly, and critical technical specifications. Its purpose is to empower owners and technicians with the knowledge needed to maintain the tractor's optimal performance and longevity. 🏷️ Basic Information Identification Make: Case IH Model: 685 Tractor 👋 Introduction Market Position Target Audience: Tractor owners, farm mechanics, agricultural repair shops, restoration enthusiasts Competitive Analysis Value Proposition: Comprehensive and authoritative information enabling DIY repairs and efficient maintenance, saving costs on professional services. Key Features Layout: Organized with a Table of Contents for easy information retrieval Accessibility: Digital download for quick access and on-demand use Searchability: Likely text-searchable within the PDF for quick keyword identification 📋 Manual Details Coverage Areas Primary Coverage: Service and repair of the Case International 685 Tractor Secondary Coverage: Troubleshooting, maintenance scheduling, detailed repair procedures Page Count Estimated Page Count: Varies by specific edition, typically 500+ pages for a comprehensive factory service manual Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, diagnostics, fuel system, cooling system, lubrication system Transmission: Clutch, gearbox (e.g., 8-speed synchromesh, powershift options if applicable), differential, final drives, PTO operation and repair Hydraulic System: Hydraulic pump, control valve, lift cover, external hydraulic circuits, troubleshooting hydraulic performance Electrical System: Wiring diagrams, starter, alternator, battery, lighting, instrument panel, starter circuits, charging circuits Steering System: Power steering pump, steering cylinder, steering column, linkages Braking System: Brake discs, brake cylinders, brake pedal assembly, parking brake, hydraulic brake system troubleshooting Chassis And Body: Front axle, rear axle, hitch assembly, drawbar, fenders, operator station, weights and ballast Power Take Off Pto: PTO engagement, lubrication, repair of PTO clutch and drive components Operator Controls: Identification and function of all operator controls, levers, and pedals Procedures Included Maintenance: Scheduled maintenance, lubrication points, fluid change intervals, filter replacement Troubleshooting: Systematic diagnostic procedures for common and uncommon faults Repair: Detailed step-by-step instructions for component removal, disassembly, repair, assembly, and installation Disassembly And Assembly: Component-specific disassembly and assembly instructions with torque specifications Technical Specifications: Torque values, clearances, fluid capacities, pressures, electrical resistance values Engine Rebuild: Complete engine disassembly, inspection, component replacement (pistons, rings, bearings, valves), and reassembly Transmission Rebuild: Detailed steps for transmission gearset overhaul, synchro ring replacement, and shaft bearing service Hydraulic System Calibration: Calibration procedures for hydraulic lift sensitivity and draft control Calibration: Includes calibration procedures for instruments and sensors if applicable Technical Depth Depth: Comprehensive, covering everything from routine maintenance to complete overhauls and advanced diagnostics Diagnostics: Includes diagnostic flowcharts and symptom-based troubleshooting guides Wiring Diagrams: Comprehensive, color-coded (if applicable to original printing) wiring diagrams for all electrical systems 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Software Requirements: Adobe Acrobat Reader or compatible PDF viewer, WinZip or compatible archive utility Compatibility: Windows and Mac operating systems Print Quality Printability: Printable pages for workshop use Binding Type Binding: Digital download (no physical binding) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Model Family: Perkins AD3.152 / 3.152 Series (commonly fitted to 685) Engine Type: 3-cylinder, naturally aspirated, direct injection diesel Displacement: 2.5 Liters (152 cubic inches) Performance Horsepower Rating Approx: Approximately 60-70 PTO horsepower (varies by specific configuration and engine tuning) Torque Rating Approx: Engine torque specifications will be detailed in the manual Fuel System Fuel Type: Diesel Injection System: Lucas/CAV or Simms inline fuel injection pump (specific model to be detailed) 🔧 Transmission Standard Transmission Type Standard: 8-speed manual synchromesh transmission Optional Transmission Type Optional: Some models may have offered a powershift or creeper gear option Features Powershift Availability: Check manual for specific transmission options Pto Options: 540 RPM PTO, 540/1000 RPM PTO (depending on configuration) 📐 Dimensions Exterior Wheelbase Approx: Approx. 84 inches (2134 mm) - subject to variation Weights Operating Weight Approx: Approx. 5500-6500 lbs (2500-2950 kg) - depends on configuration and ballast 🛡️ Safety Features Ratings Roll Over Protection: ROPS (Roll Over Protective Structure) availability and specifications covered Active Features Braking System Description: Wet disc brakes (common on later models), hydraulic actuation Passive Features Seatbelt Availability: Information on seatbelt installation...