The International Harvester (IH) / Case IH 85 Series tractors, including models such as the 485, 585, 685, 785, 885, Hydro 85, XL Series Agricultural Tractors, and the 248, 258, 278, Hydro 268 Industrial Tractors, represent a line of robust utility vehicles primarily produced in the late 1970s and early to mid-1980s. These tractors are characterized by their dependable performance, robust construction, and the strong engineering legacy of IH and Case IH. They were designed as reliable workhorses for a wide range of agricultural and light industrial tasks, often featuring shared engine platforms for parts commonality and offering versatile transmission options, including mechanical gearboxes and hydrostatic drivetrains. Their engineering prioritized durability and straightforward operation, making them a valued asset in their market segment. This manual serves as a comprehensive guide for the maintenance, repair, and troubleshooting of the International Harvester (IH) / Case IH 85 Series tractors. It covers essential areas including engine overhaul and diagnostics, transmission and PTO systems, hydraulic circuits, electrical systems, braking, and steering. Detailed procedures for routine maintenance, major overhauls, component replacement, and adjustments are provided, alongside critical technical specifications, torque values, and wiring and hydraulic schematics. The manual is designed to assist owners, mechanics, and technicians in ensuring the optimal performance, reliability, and longevity of these agricultural and industrial machines. 🏷️ Basic Information Identification Make: International Harvester (IH) / Case IH Model: 85 Series Agricultural and Industrial Tractors Product Name: Collection of 2 files: IH Case 85 Series Tractor Factory Service Repair Manual & Shop Manual-Improved-PDF Codes Included Models: 485, 585, 685, 785, 885, Hydro 85, XL Series Agricultural Tractors; 248, 258, 278, Hydro 268 Industrial Tractors 👋 Introduction Market Position Market Segment: Utility tractors, suitable for a wide range of agricultural and light industrial tasks. Positioned as reliable workhorses. Competitive Analysis Key Competitors: Competed with models from John Deere (e.g., 20 Series), Ford (e.g., 10 Series), Massey Ferguson, and New Holland during their production era. Key Features Common Engine Platform: Shared engine options (e.g., Case/IH C-Series diesel) across the series for commonality in parts and service. Transmission Options: Availability of both mechanical gear transmissions and hydrostatic drivetrains for versatile operation. Reliability: Known for robust construction and dependable performance, characteristic of IH/Case IH engineering. 📋 Manual Details Coverage Areas Manual 1 Coverage: Factory Service Repair Manual for 85 Series Agricultural and Industrial Tractors. Manual 2 Coverage: Aftermarket Shop Manual - Improved - for IH Case 85 Series Tractors. Page Count Manual 1 Page Count: Likely extensive, typical for factory service manuals covering multiple models and systems (estimate 800-1200 pages based on comparable manuals). Manual 2 Page Count: Likely substantial, but may be less exhaustive than the factory manual (estimate 400-700 pages based on aftermarket comparative quality). Manual Type Manual 1 Type: Factory Service Repair Manual Manual 2 Type: Aftermarket Shop Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, repair, troubleshooting, component identification, specifications (e.g., Case/IH C-Series diesel engines, potentially Perkins or other derivatives). Transmission Systems: Repair and overhaul of gear transmissions and hydrostatic transmissions (Hydro 85, Hydro 268), clutch service, PTO systems. Hydraulic Systems: Hydraulic pump repair, control valve troubleshooting, cylinder service, hydraulic circuit diagrams, fluid specifications and maintenance. Electrical Systems: Wiring diagrams, starter, alternator, battery system, lighting, instrument panel diagnostics, troubleshooting electrical faults. Powertrain: Front axle repair, rear axle and differential service, planetary gears, final drives. Braking System: Service and repair of mechanical and hydraulic braking systems. Steering System: Power steering system repair, component identification, troubleshooting. Operator Station: Seat repair, control linkages, platform maintenance, cab systems (if applicable). Body And Chassis: Frame inspection, fender repair, mounting points, ballast support. Hitch And Implements: Three-point hitch system adjustment and repair, draft control mechanisms, PTO engagement. Procedures Included Major Overhauls: Complete engine rebuild procedures, transmission disassembly and reassembly, hydraulic pump and cylinder overhauls. Routine Maintenance: Oil change intervals, filter replacement procedures, lubrication points, greasing schedule, coolant maintenance. Troubleshooting Guides: Systematic diagnostic procedures for common and uncommon issues across all major tractor systems. Adjustment Procedures: Valve lash adjustment, clutch pedal free play, brake pedal free play, hydraulic pressure adjustments, PTO timing. Component Replacement: Step-by-step instructions for replacing major components like fuel injectors, water pump, starter, alternator, hydraulic seals, and PTO clutch packs. Torque Specifications: Essential torque values for critical fasteners across all systems (engine, transmission, axles, hydraulics). Diagnostic Flowcharts: Visual aids and step-by-step flowcharts to pinpoint the root cause of malfunctions. Technical Depth Diagnostic Capability: Advanced diagnostic procedures, fault code interpretation (if applicable to the era), electrical system tracing. Rebuild Completeness: Detailed disassembly, inspection, measurement, repair, and reassembly instructions for major engine and drivetrain components. Wiring Diagrams: Comprehensive electrical schematics for various configurations and options. Hydraulic Schematics: Detailed diagrams illustrating hydraulic flow for various functions. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution scans, optimized...