Target Audience:
Owners, operators, and service technicians of International Harvester 454, 474, 475, 574, and 674 tractors.
Value Proposition:
Enables owners to perform their own repairs, saving significant costs on labor and avoiding reliance on external mechanics.
Ease Of Use:
Designed with easy-to-follow step-by-step instructions.
Comprehensiveness:
Covers all services and repairs, including routine maintenance.
Information Access:
Provides access to crucial technical data, diagrams, and troubleshooting guides.
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures.
Fuel System:
Carburetor (if applicable), fuel pump, fuel lines, and filters.
Cooling System:
Radiator, fan, water pump, thermostat, and hoses.
Lubrication System:
Oil pump, oil pan, oil filter, and lubrication passages.
Ignition System:
Spark plugs, ignition coils, distributors (if applicable), and wiring.
Electrical System:
Wiring diagrams, battery, starter, alternator, lighting, and accessory circuits.
Transmission:
Clutch, gearbox, power take-off (PTO) unit, and related components.
Drivetrain:
Differential, rear axle, front axle (if applicable), and driveshafts.
Braking System:
Brake master cylinder, brake lines, calipers/drums, and parking brake.
Steering System:
Steering wheel, steering column, tie rods, and steering linkage (hydraulic assist if equipped).
Hydraulic System:
Hydraulic pump, control valves, lift arms, and hydraulic fluid specifications.
Front Axle And Steering:
Front wheel hub, spindle, kingpins, and steering geometry adjustments.
Rear Axle And Final Drive:
Rear wheel hubs, axle shafts, and final drive gear assemblies.
Power Take Off Pto:
PTO engagement, gearbox, and output shaft maintenance.
Chassis And Frame:
Frame inspection, component mounting, and structural integrity.
Bodywork And Fenders:
Sheet metal repair, fender mounting, and operator station components.
Operator Controls:
Throttle, clutch pedal, brake pedal, gear shifter, and hydraulic controls.
Instrumentation:
Tachometer, oil pressure gauge, temperature gauge, and warning lights.
Routine Maintenance:
Scheduled checks, fluid changes, filter replacements, and lubrication points.
Troubleshooting:
Diagnostic procedures for common problems and fault finding with detailed steps.
Repair Instructions:
Step-by-step instructions for component removal, repair, and installation.
Adjustments:
Clutch adjustment, brake adjustment, valve lash adjustment, and PTO linkage adjustments.
Rebuilds:
Detailed procedures for rebuilding engines, transmissions, hydraulic pumps, and other major components.
Wiring Diagrams:
Comprehensive electrical schematics for all circuits and components.
Torque Specifications:
Accurate torque values for all critical fasteners and bolts.
Special Tools:
Identification and usage of specialized tools required for specific repairs.
Depth Level:
In-depth, professional quality, covering all areas of repair.
Visual Aids:
Includes pictures and diagrams to simplify repair processes.
Engine Type:
Likely diesel engines, commonly including International Harvester's own BD series or similar.
Model Specific Engines:
454/474/475 models often used the D-179 (3.0L) diesel. 574/674 models typically used the D-206 (3.4L) or D-239 (3.9L) diesel engines.
Horsepower Range:
Approximately 40-70 PTO horsepower, depending on the specific model and engine.
Torque Characteristics:
Designed for robust torque delivery at lower RPMs, characteristic of agricultural diesel engines.
Injection Type:
Likely indirect injection (IDI) diesel fuel system with rotary or inline injection pumps.
Oil Capacity:
Typically around 5-7 quarts (4.7-6.6 liters) of engine oil, depending on model and filter size. Refer to manual for exact specification.
Recommended Oil Viscosity:
Commonly SAE 10W-30 or SAE 15W-40 diesel engine oil, depending on operating temperature. Refer to manual for exact specification.
Transmission Type:
Manual Synchromesh Transmission (MST)
Gear Configuration:
Typically an 8-speed or 12-speed gearbox (e.g., 8 forward + 4 reverse, or 12 forward + 4 reverse with a creeper gear).
Transmission Options:
Some models might have offered a Hi-Lo transmission (power shift or range splitter) for increased gear selection.
Clutch Type:
Dry single-plate clutch, operated by foot pedal.
Pto Speeds:
Standard PTO speeds often include 540 RPM and 1000 RPM, with engagement via a separate lever.
Transmission Oil Type:
Typically a heavy-duty multi-purpose tractor oil (e.g., UTTO - Universal Tractor Transmission Oil) or SAE 80W-90 GL-4 gear oil. Refer to manual for exact specification.
Engine Oil Change:
Typically every 100-250 operating hours, or annually. Refer to manual for precise intervals.
Air Filter Check:
Check and clean as needed, replace at least annually or more frequently in dusty conditions.
Fuel Filter Replacement:
Recommended every 250-500 operating hours or annually. Bleeding the fuel system is critical after replacement.
Transmission Oil Change:
Typically every 500-1000 operating hours or every two years. Drain and refill procedures are vital.
Coolant Type:
Ethylene glycol based antifreeze/coolant mixture. Check manual for specific ratio and type (e.g., conventional green or modern extended-life).
Hydraulic Fluid Type:
Universal Tractor Transmission Oil (UTTO) or IH Hytran fluid (or equivalent) is commonly specified. Capacity varies by model and attached implements.
Common Wear Points:
Clutch wear, PTO engagement issues, hydraulic pump wear, front axle kingpin wear, and potential radiator leaks.
Electrical Concerns:
Aging wiring harnesses can lead to intermittent electrical issues. Battery terminals and connections require regular inspection.
Importance Of Greasing:
Regular lubrication of all grease points is crucial for preventing wear in pivot points, steering linkage, and PTO components.
