🏷️ Basic Information Identification Make: International Harvester Model: 674 Tractor Product Type: Factory Service Repair Manual 👋 Introduction Market Position Target User: Owners, mechanics, and technicians working on International Harvester 674 Tractors. Key Features Information Layout: Features a table of contents for easy information retrieval. Benefit Cost Saving: Enables significant savings on repair costs by empowering users to perform maintenance and repairs themselves. Benefit Convenience: Provides convenient access to repair information anytime, anywhere, directly on digital devices. Benefit Knowledge Acquisition: Offers in-depth knowledge of vehicle systems, crucial for emergency situations and proper operation. 📋 Manual Details Coverage Areas Manual Scope: Comprehensive service and repair information for the International Harvester 674 Tractor. Manual Type Manual Type: Factory Service Repair Manual Language Language: English Format File Format: PDF Page Count Estimated Pages: While not explicitly stated, factory service manuals for this era typically range from 500 to over 1000 pages. 📖 Manual Coverage Systems Covered Engine: Complete coverage of engine repair, overhaul, diagnostics, and specifications. Transmission: Detailed information on transmission systems, including operation, troubleshooting, and repair. Drivetrain: Coverage of rear axle, differential, and drive components. Hydraulics: In-depth coverage of the hydraulic system, including pump, valves, cylinders, and fluid specifications. Electrical System: Includes wiring diagrams, component testing, and troubleshooting for the electrical system. Braking System: Repair and maintenance procedures for the braking system. Steering System: Service and repair information for the steering mechanism. Cooling System: Maintenance and repair of the radiator, fan, and thermostat. Fuel System: Troubleshooting and repair of the fuel injection or carburetion system and fuel tank. User Interface: Information on control levers, dashboard indicators, and operator controls. Front Axle Steering: Repair and maintenance of the front axle and steering components. Three Point Hitch: Service and adjustment of the three-point hitch and draft control system. Procedures Included Routine Maintenance: Detailed schedules and procedures for oil changes, filter replacements, lubrication, and inspections. Troubleshooting: Systematic guides for diagnosing and resolving common and complex issues. Major Repairs: Step-by-step instructions for component overhauls and major repairs. Component Disassembly Reassembly: Detailed guides for taking apart and putting back together various tractor components. Diagnostics: Methods for identifying faults using visual inspection, measurements, and specialized tools. Wiring Diagrams: Includes detailed electrical wiring diagrams for the entire tractor. Technical Depth Depth Of Information: Comprehensive, suitable for professional mechanics and experienced DIY users. Engine Rebuild: Complete procedures for engine overhaul, including piston, ring, bearing, and cylinder head service. Hydraulic Component Overhaul: Detailed instructions for rebuilding hydraulic pumps, cylinders, and control valves. 📊 Manual Specifications File Format File Requirements: Requires Adobe PDF Reader and WinZip for decompression and viewing. Compatibility Operating Systems: Compatible with all versions of Windows and Mac operating systems. Print Quality Print Readability: Designed for clear printing and on-screen readability. Binding Type Binding: Digital (Downloadable PDF) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Likely a diesel engine, common for this class of tractor. Engine Family: International Harvester D-series (e.g., D-155, D-179, D-206, D-236, D-246, D-268, D-310 depending on specific 674 variant). Cylinder Count: Typically 3 or 4 cylinders for this model range. Performance Horsepower Range: Approximately 50-70 HP (exact figures vary by specific engine option). Torque Specifications: Detailed torque specifications for critical engine components will be present in the manual. Fuel System Fuel Type: Diesel Injection System: Likely a direct injection system with a rotary or inline injection pump (e.g., CAV, Bosch). Cooling System Cooling Method: Liquid-cooled Lubrication Oil Type: Specific diesel engine oil grades (e.g., API CD or equivalent) and capacities will be detailed. 🔧 Transmission Standard Transmission Type: Manual gearbox with various speed configurations (e.g., 8-speed or 16-speed with creeper gears). Gear Selection: Likely a combination of main shift lever and range selector. Features Power Take Off Pto: Includes operation and maintenance of the PTO system (540/1000 RPM). Differential Lock: Information on the operation and maintenance of the rear differential lock. Fluid Specifications Transmission Hydraulic Fluid: Specifications for transmission and hydraulic fluid (likely a Universal Tractor Transmission Oil - UTTO or similar). 📐 Dimensions Exterior Overall Length: Approx. 3500-3700 mm (138-146 inches), varies with hitch. Overall Width: Approx. 1700-1900 mm (67-75 inches), varies with tire size. Wheelbase: Approx. 2100-2200 mm (83-87 inches). Weights Operating Weight: Approx. 2500-3000 kg (5500-6600 lbs). 🛡️ Safety Features Passive Features Rollover Protection: Manual will cover safety aspects and potential for ROPS installation/maintenance. Active Features Operator Station Design: Information on controls and safety features for the operator. 💡 Technology Features Infotainment Operator Controls: Focus on mechanical and basic electrical controls, not modern infotainment systems. Driver Assistance Tractor Systems: Covers systems like power steering, draft control, and PTO engagement. Connectivity Diagnostics Interfaces: Information on how to diagnose issues, typically through mechanical checks and basic electrical testing. 🔧 Maintenance Service Intervals Engine Oil Change: Typically 250 hours, specific interval will be detailed in manual. Hydraulic Fluid Change:...