🏷️ Basic Information Identification Make: International Harvester Model: 454, 474, 475, 574, 674, 2400, 2500 Codes Manual Identifier: Service Repair Workshop Manual 👋 Introduction Market Position Target Audience: Farm owners, agricultural technicians, mechanics, collectors Competitive Analysis Value Proposition: Comprehensive, lifetime access, no hidden fees, equivalent to factory-issued service manuals Key Features Digital Access: Instant download, usable on multiple devices and computers for life Content Quality: Hundreds of pages with detailed photos and diagrams for accurate repairs 📋 Manual Details Coverage Areas Operational Scope: Complete factory service and repair Page Count Estimated Pages: Hundreds of pages (specific count not provided, but described as comprehensive) Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine: Engine overhaul, tuning, diagnostics, fuel system, lubrication system, cooling system, starting and charging systems Transmission: Gearbox, clutch, PTO, differential, final drives, hydraulic lift systems Electrical: Wiring diagrams, lighting, ignition system, starter motor, alternator, battery Chassis: Steering, front axle, rear axle, brakes, hydraulics, chassis components Bodywork: Sheet metal repair, operator station, fenders, safety features Procedures Included Maintenance: Routine servicing, lubrication, fluid changes, filter replacements Troubleshooting: Diagnostic procedures for all systems, identification of common problems and solutions Repair: Step-by-step instructions for component disassembly, repair, and reassembly Rebuild: Comprehensive procedures for engine, transmission, and hydraulic system rebuilds Technical Depth Depth: Professional-level diagnostics and repair, suitable for mechanics and technicians Detail Level: Highly detailed exploded diagrams, pictures, and step-by-step instructions 📊 Manual Specifications File Format Compatibility: Fully compatible with Windows and MAC computers Print Quality Printability: Print single pages or the entire manual Binding Type Binding: N/A (Downloadable PDF) Paper Type Paper Quality: N/A (Digital format, assumes high-resolution images and text) ⚙️ Engine Specifications Primary Engine Engine Options: Likely International Harvester's own diesel engines (e.g., BD-series, DT-series variations depending on specific model year and configuration). Specific displacements and configurations vary across the model range. Performance Horsepower Range: Estimates based on typical models of this era: 45-75 HP (specific data requires model year lookup within the manual) Torque Range: Estimates based on typical models of this era: 100-150 lb-ft (specific data requires model year lookup within the manual) Fuel System Fuel Type: Diesel Injection System: Indirect injection, typically CAV or Simms (specifics detailed in manual) 🔧 Transmission Standard Gearbox Type: Constant mesh, sliding gear transmission. Likely with 8 or 16 forward speeds and 4 or 8 reverse speeds depending on the model and optional creeper gear. Optional Transmission Options: Creeper gear, possible hydrostatic options for certain models (check specific model coverage). Features Pto: Live PTO (often 540 RPM, sometimes 1000 RPM options available, depending on model and configuration) Differential: Locking differential with pedal-activated engagement 📐 Dimensions Exterior Wheelbase: Varies by model (e.g., 454/474 approx. 82-86 inches) Weights Operating Weight: Varies by model (e.g., 454/474 approx. 4000-5000 lbs) 🛡️ Safety Features Ratings Rollover Protection: ROPS (Roll-Over Protective Structure) may be standard or optional depending on model year and regional regulations. Manual will detail installation and maintenance. Active Features Braking System: Hydraulically activated, internal expanding drum brakes on rear axle. Manual covers adjustment and repair. Passive Features Operator Station: Basic platform or operator cab with safety guards and controls. Manual covers operator safety and control functions. 💡 Technology Features Infotainment Entertainment System: N/A (Basic tractor controls, no infotainment system) Driver Assistance Traction Control: Manual differential lock provides basic traction assistance. Connectivity Bluetooth: N/A 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 100-250 operating hours, or annually, as specified in the manual. Hydraulic Fluid Change: Typically every 500-1000 operating hours, or annually, as specified in the manual. Air Filter Service: Inspect every 50 operating hours, clean/replace as needed, or at least annually. Fluid Specifications Engine Oil Type: API CD or CE rated diesel engine oil, SAE 30 or 15W-40 recommended depending on ambient temperature (refer to manual for exact specs). Hydraulic Fluid Type: IH Hy-Trans fluid, or equivalent Universal Tractor Transmission Oil (UTTO) meeting specific viscosity and performance standards (detailed in manual). Transmission Fluid Type: Likely shares with the hydraulic system (IH Hy-Trans or UTTO). Known Issues Common Wear Items: Clutch wear, PTO seal leaks, hydraulic pump wear, starter motor reliability, injector pump calibration. Electrical Gremlins: Wiring harness degradation, starter solenoid issues, alternator charging problems due to age and vibration. 📚 Vehicle History Brand Heritage Brand Legacy: International Harvester was a prominent American manufacturer of agricultural and construction equipment, known for robust and reliable machinery. Model Evolution Series Overview: These models represent a range of utility tractors from the late 1960s through the 1970s, successors to earlier IH tractor lines, offering improved power and features for their era. Production Manufacturing Era: Primarily 1970s (specific production years for each model range from late 60s to early 80s, detailed in manual). 🏆 Awards & Recognition Recognitions Industry Impact: International Harvester tractors of this era were workhorses...