Target Audience:
Do-it-yourself owners and experienced mechanics seeking detailed repair information.
Content Highlight:
Detailed illustrations, diagrams, wiring schematics, specifications, and step-by-step instructions.
Cost Effectiveness:
Inexpensive way to keep the tractor working properly and avoid costly shop visits.
Navigation:
Numbered table of contents for fast information retrieval.
Instruction Clarity:
Numbered instructions, bold figure numbers, detailed substeps, and call-out notes/cautions/warnings.
Primary Coverage:
Complete service and repair for International Harvester Tractor 674
Systems Covered:
Engine Mechanical, Engine Electrical, Emission Control, Fuel System, Suspension System, Clutch System, Manual Transaxle System, Driveshaft and Axle, Steering System, Brake System, Body Interior and Exterior, Body Electrical System, Restraint System
Estimated Page Count:
Varies by specific edition, but comprehensive manuals typically exceed 500 pages
Type:
Service Repair Manual / Workshop Manual
Engine Mechanical System:
Detailed diagnostics, disassembly, inspection, repair, and reassembly procedures for engine components including cylinder heads, blocks, crankshafts, pistons, connecting rods, camshafts, and valve trains.
Engine Electrical System:
Includes troubleshooting, repair, and component testing for starting system, charging system, ignition system, and related wiring harnesses.
Emission Control System:
Information on emission control devices, their function, and troubleshooting procedures to meet regulatory standards.
Fuel System:
Diagnosis and repair of fuel injection or carburetion systems, fuel pumps, filters, lines, and associated components.
Suspension System:
Service and repair procedures for front and rear suspension components, including kingpins, bushings, linkages, and shock absorbers.
Clutch System:
Detailed instructions for clutch inspection, adjustment, replacement of clutch disc, pressure plate, and release bearing.
Manual Transaxle System:
Repair and overhaul procedures for the gearbox, including gear inspection, bearing replacement, and shift mechanism service.
Driveshaft And Axle:
Service information for driveshafts, universal joints, differentials, and axle shafts.
Steering System:
Procedures for diagnosing and repairing steering gears, linkages, power steering components (if applicable), and steering column.
Brake System:
Comprehensive coverage of brake system maintenance, repair, and bleeding, including brake shoes, drums, cylinders, and hydraulic lines.
Body Interior And Exterior:
Guidance on body panel repairs, door mechanisms, seat adjustments, and exterior trim.
Body Electrical System:
Wiring diagrams, troubleshooting for lighting systems, instrument clusters, and accessories.
Restraint System:
Information on safety restraints such as seat belts and ROPS (Roll Over Protection Structure) if applicable.
Maintenance:
Scheduled maintenance, fluid changes, lubrication, filter replacements, and general upkeep procedures.
Troubleshooting:
Systematic diagnostic flowcharts and common problem identification for all major vehicle systems.
Repair:
Step-by-step repair instructions for component removal, rebuilding, and installation.
Diagnostics:
Detailed diagnostic procedures for identifying and rectifying faults across various systems.
Electrical Service:
Combined troubleshooting and wiring diagrams for efficient electrical system diagnosis and repair.
Rebuilds And Overhauls:
Detailed instructions for major component rebuilds, including engines, transmissions, and hydraulic systems.
Depth:
Comprehensive, covering from basic maintenance to complete overhauls and advanced diagnostics.
Specifications Detail:
Provides essential technical data like torque specifications, clearances, fluid capacities, and timing settings.
Completeness Level:
Factory Service Manual level of detail, aiming to cover all repair and maintenance tasks.
Engine Oil Change:
Typically every 250 hours of operation or annually, refer to specific manual for exact intervals and oil type.
Air Filter Service:
Check and clean as needed, replace based on operating conditions and manual recommendations.
Fuel Filter Replacement:
Recommended replacement at specified intervals or when fuel system issues arise.
Engine Oil:
API CD or CE classification, SAE 30 or 15W-40 depending on ambient temperature (verify with manual).
Hydraulic Fluid:
IH Hytran or equivalent UTF (Universal Tractor Transmission Oil) meeting API GL-4 and MS-1207 specifications.
Transmission Fluid:
Typically the same UTF fluid as used for hydraulics.
Common Wear Points:
Clutch wear, hydraulic pump output, front axle kingpins, and electrical wiring degradation over time.
Diesel Engine Specifics:
Glow plug system functionality, injector wear, and potential for air in the fuel system.