This workshop repair service manual provides comprehensive information for the 674. As a product of a manufacturer with a significant legacy in agricultural and construction equipment, the 674 represents a model built with engineering quality and reliability in mind. This manual covers all models, engines, trim, and transmission types, ensuring that users have access to the specific details needed for their particular unit. The purpose of this manual is to serve as a definitive guide for owners, mechanics, and technicians. It details routine maintenance, advanced troubleshooting, and repair procedures across all major systems, including the engine, lubrication, cooling, fuel, clutch, transmission, drive chain, rear axle, brakes, front axle, steering, shocks, bodywork, intake, exhaust, hydraulic, and electrical systems. With hundreds of pages of professional-level information, including detailed substeps, diagrams, drawings, photos, and critical specifications, this English-language resource empowers users to maintain and repair their 674 effectively, potentially saving significant costs. 🏷️ Basic Information Identification Make: International Harvester Model: 674 Product Type: Workshop Repair Service Manual Format: PDF Download Generation Generation Covered: All Models/Engines/Trim/Transmission Types Codes Manual Code: Not Specified (Implied Original Manufacturer Documentation) 👋 Introduction Market Position Target Audience: Owners, mechanics, and technicians performing service and repair on IH International Harvester 674. Competitive Analysis Advantage: Provides factory-level information, saving significant repair costs. Digital format offers convenience. Key Features Completeness: Complete and intact manual, same as used by professional service shops. Accuracy: Written by manufacturers, offering the most accurate and complete information available. Usability: Easy-to-follow directions, pictures, diagrams, and numbered instructions enhance usability. Value Proposition Cost Savings: Enables DIY repairs, potentially saving hundreds or thousands of dollars in repair bills. 📋 Manual Details Coverage Areas General Coverage: Comprehensive service, maintenance, and troubleshooting for IH International Harvester 674. Page Count Estimated Pages: Hundreds (as per description) Manual Type Type: Workshop Repair Service Manual Language Language: English Format Digital Format: PDF Print Capabilities: Full Printable Searchability: Implied via PDF format Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinZip Compatibility Operating Systems: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine: Included Lubrication System: Included Cooling System: Included Fuel System: Included Clutch: Included Transmission: Included Drive Chain Sprockets: Included Rear Axle: Included Brakes: Included Front Axle: Included Steering: Included Shocks: Included Body Work: Included Intake Exhaust: Included Hydraulic System: Included Electrical System: Included Routine Maintenance: Included Advanced Troubleshooting: Included Wiring Diagrams: Included Procedures Included Disassembly Servicing: Included General Repair: Included Separation Procedures: Included Maintenance Tasks: Included Troubleshooting: Included Diagnostics: Included Assembly: Included Cleaning: Included Reinstallation: Included Technical Depth Detail Level: Professional technician level, including detailed substeps, notes, cautions, and warnings. Illustrations: Hundreds of pages of diagrams, drawings, and photos with enlarged insets. Specifications: Critical specifications included for repair procedures. 📊 Manual Specifications File Format Format: PDF Print Quality Quality: High Quality, Full Printable Binding Type Binding: Not Applicable (Digital PDF) Paper Type Paper Type: Not Applicable (Digital PDF) Zoom Functionality Zoom: YES ⚙️ Engine Specifications Primary Engine Engine Type: Multiple engine options likely covered by the 'All Models/Engines' designation. Specific details require manual consultation. Performance Horsepower: Not Specified (Requires Manual Consultation) Torque: Not Specified (Requires Manual Consultation) Fuel System Fuel Delivery: Covered in detail. Carburetion Injection: Details on specific fuel systems will be present. 🔧 Transmission Standard Transmission Type: Multiple transmission types are covered ('All ... Transmission Types'). Specific details require manual consultation. Optional Optional Transmissions: Not Specified (Covered if applicable). Features Gear Ratios: Likely included for diagnostic and repair purposes. Clutch Operation: Detailed information on clutch disassembly and servicing is provided. 📐 Dimensions Exterior Overall Dimensions: Not Specified (Requires Manual Consultation) Weights Operating Weight: Not Specified (Requires Manual Consultation) 🛡️ Safety Features Ratings Safety Certifications: Not Specified (Manual focuses on repair, not ratings). Active Features Braking System: Detailed coverage of brake system maintenance and repair. Passive Features Structural Integrity: Bodywork section may implicitly cover structural aspects relevant to repair. 💡 Technology Features Infotainment Infotainment Systems: Not applicable for this type of agricultural equipment. Driver Assistance Driver Aids: Not applicable for this type of agricultural equipment. Connectivity Connectivity Features: Not applicable for this type of agricultural equipment. Electrical System Wiring Diagrams: Detailed wiring diagrams are included for diagnosing and repairing electrical system problems. 🔧 Maintenance Service Intervals Scheduled Maintenance: Routine maintenance procedures and implied schedules are covered. Fluid Specifications Engine Oil: Likely specified within the Lubrication System section. Hydraulic Fluid: Likely specified within the Hydraulic System section. Coolant: Likely specified within the Cooling System section. Known Issues Common Problems: Troubleshooting and advanced troubleshooting sections address common issues. 📚 Vehicle History Brand Heritage Manufacturer Legacy: International Harvester is a historic American manufacturer known for agricultural and construction equipment. Model Evolution 674 Series: The 674 likely represents a specific tractor model within IH's product line. Details on its specific production run and variations are within the manual. Production Production Period: Not...