🏷️ Basic Information Identification Make: International Harvester Model: 674 Product Type: Workshop Service Repair Manual 👋 Introduction Market Position Target Audience: Owners, operators, mechanics of IH 674 tractors Key Features Comprehensiveness: Complete official factory service manual Usability: Printable, step-by-step instructions, detailed illustrations Value Proposition Cost Savings: Inexpensive way to keep vehicle working properly, save money on repairs 📋 Manual Details Coverage Manual Type: Factory Service Repair Manual Language: English Format: PDF Download Print Quality: Printable without restriction Delivery Method: Instant download after payment Requirements: Adobe PDF Reader 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, diagnostics, tuning Cooling System: Radiator, thermostat, water pump, hoses, fan Fuel System: Carburetor/injection, fuel pump, filters, lines Power Train: General power train components and diagnostics Front Axle: Steering components, axle housing, kingpins Clutch: Clutch operation, adjustment, replacement Differential Lock: Operation and service of differential lock Electrical System: Wiring diagrams, charging system, ignition, starter, lighting Brakes: Hydraulic brake system, master cylinder, wheel cylinders, brake shoes/pads Fenders Fuel Tank Platform: Bodywork, fuel tank maintenance, platform structure Final Drive: Components of the final drive system Front System: General front-end components and systems Front Wheel Drive: Service and maintenance of FWD systems (if applicable) Hydraulic System: Hydraulic pump, cylinders, control valves, fluid specifications Main Drive Bevel Gears Differential: Service of main drive gears and differential assembly Park Brake: Operation and service of the parking brake Power Steering System: Components, operation, and service of power steering Power Take Off: PTO operation, maintenance, and repair Rear Axle: Rear axle housing, bearings, seals Steering Gear: Steering column, linkages, steering box Transmission: Gearbox overhaul, shifting mechanisms, power take-off engagement Procedures Included Maintenance: Scheduled maintenance, lubrication, filter changes, fluid checks Troubleshooting: Diagnostic procedures for common and complex issues Repair: Step-by-step repair instructions for all major components Disassembly Reassembly: Complete disassembly and reassembly of all major systems Electrical Diagnostics: Detailed troubleshooting for electrical faults with wiring diagrams Technical Depth Depth: Comprehensive, suitable for DIY and experienced mechanics Illustrations: Hundreds of photos and illustrations Instructions: Detailed substeps, numbered instructions, cautions, and warnings 📊 Manual Specifications File Details File Format: PDF Searchable: Implied by PDF format, enabling text search Digital Storage: Save to hard drive, burn to CD-ROM Printability: All pages printable without restriction ⚙️ Engine Specifications Primary Engine Engine Type: Diesel (typical for IH 674) Performance Horsepower: Varies by specific engine variant, typically around 60-70 HP (approximate, manual will provide exact) Torque: Varies by specific engine variant, manual will provide exact figures Fuel System Fuel Type: Diesel fuel Injection System: Likely direct injection or indirect injection (manual will detail specific system) 🔧 Transmission Standard Transmission Type: Manual transmission (common configurations include synchronized or unsynchronized gearboxes) Optional Powershift: Some models might have offered powershift options, manual will clarify Features Gear Selection: Multiple forward and reverse gears Pto Engagement: Independent PTO engagement mechanisms covered 📐 Dimensions Exterior Wheelbase: Specific to model variant, manual will provide Weights Operating Weight: Specific to configuration, manual will provide 🛡️ Safety Features Passive Features Operator Protection: Information on ROPS (Roll-Over Protective Structure) and PTO shielding (if standard/optional) 💡 Technology Features Infotainment Features: N/A (As this is a tractor, advanced infotainment is not applicable; focus is on functional instrumentation) Driver Assistance Features: Power steering, differential lock are key operational aids. 🔧 Maintenance Service Intervals Engine Oil Change: Specific intervals (e.g., every 250 hours) detailed in manual Hydraulic Fluid Change: Specific intervals (e.g., annually or per operating hours) detailed in manual Fluid Specifications Engine Oil: Specific API service classification and viscosity grade (e.g., API CD or CE, SAE 15W-40 or 10W-30, manual will confirm) Hydraulic Fluid: Specific type and viscosity (e.g., IH Hy-Tran, or equivalent UTF, manual will specify) Transmission Fluid: Specific type and viscosity, often shared with hydraulic system (manual will clarify) Known Issues Common Wear Items: Clutch wear, hydraulic seal leaks, PTO bearing wear (manual provides diagnostics) Electrical Gremlins: Wiring harness degradation, starter solenoid issues (manual details troubleshooting) 📚 Vehicle History Brand Heritage Manufacturer: International Harvester (IH) - a historic American manufacturer of agricultural and construction equipment. Model Evolution Series: Part of the IH tractor lineup, succeeding earlier models and preceding later designs. Production Production Period: Typically produced in the late 1960s and 1970s, specific years will be detailed in manual context. 🏆 Awards & Recognition Recognitions Industry Standing: IH tractors are known for their robust build and reliability, making this a valuable reference for maintaining a legacy machine.