Purpose:
Essential resource for owners, mechanics, and technicians performing maintenance, repairs, and diagnostics on the International Harvester 574 Tractor.
Comprehensiveness:
Encompasses all service and repair information, including troubleshooting, maintenance schedules, and detailed procedures.
Accessibility:
Digital PDF format allows for quick download and access on various devices, anywhere, anytime.
Cost Savings:
Empowers users to perform repairs themselves, saving significant costs on labor.
Engine:
Detailed engine overhaul, diagnostics, fuel system (carburetor/injection), ignition system, cooling system, lubrication system, air intake, exhaust system.
Transmission:
Complete service and repair for mechanical and powershift transmissions (if applicable), clutch, gear shifting mechanisms, hydraulic controls.
Drivetrain:
Front axle, rear axle, differential, final drives, driveshafts, PTO (Power Take-Off) system.
Hydraulics:
Hydraulic pump, control valves, lift arms, three-point hitch system, hydraulic fluid specifications, troubleshooting hydraulic issues, cylinder repair.
Electrical:
Wiring diagrams, starter system, alternator/generator, battery, lighting system, instrumentation, troubleshooting electrical faults.
Steering:
Mechanical and power steering systems, linkages, components, service and repair.
Brakes:
Brake system components, hydraulic lines, brake adjustments, fluid specifications, troubleshooting brake performance.
Cooling System:
Radiator, thermostat, water pump, coolant specifications, pressure testing, leak detection.
Fuel System:
Fuel tank, lines, filters, pumps, injectors/carburetor, troubleshooting fuel delivery issues, diesel specific components.
Operator Station:
Dashboard, controls, seat, safety features, cab components (if applicable).
Maintenance:
Routine maintenance checks, lubrication points, fluid level checks, filter replacement, safety inspections, maintenance schedules.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon problems, fault finding guides, symptom-based troubleshooting.
Repair:
Step-by-step instructions for component removal, disassembly, cleaning, inspection, repair, reassembly, and installation.
Overhaul:
Complete engine rebuild, transmission overhaul, hydraulic system overhaul, complete component rebuild procedures.
Diagnostics:
Methods for diagnosing mechanical and electrical faults, use of diagnostic tools, performance testing.
Depth:
Comprehensive, covering from basic preventative maintenance to complete engine and drivetrain rebuilds, with detailed technical specifications and tolerances.
Engine Family:
Typically powered by International Harvester's own diesel engines, often variants of the BD series or similar.
Typical Engine Model Diesel:
Commonly equipped with engines like the D-154, D-179, or DT-239 (depending on configuration and market).
Horsepower Range:
Approximately 48-65 PTO horsepower, depending on the specific engine variant and configuration.
Torque Curve:
Detailed torque specifications and power curves would be present in the manual for optimal engine tuning.
Injection System:
Typically direct injection, often with rotary or inline injection pumps (e.g., Bosch, CAV).
Coolant Type:
Ethylene glycol based antifreeze coolant, with specific concentration and type (e.g., heavy-duty diesel formulation) detailed in the manual.
Oil Type:
API CD or CE classification diesel engine oil, with specific viscosity grades (e.g., SAE 15W-40) provided in the manual.
Oil Capacity:
Oil capacity will vary by engine, but typically around 6-8 quarts (5.7-7.6 liters) with filter. Exact capacity specified in manual.
Transmission Type:
Standard gearbox with multiple forward and reverse gears (e.g., 8 forward, 4 reverse).
Powershift:
Optional Select-O-Matic or similar powershift transmission may be available on certain models.
Pto Transmission:
Integrated PTO drive system, with speeds usually 540/1000 RPM, controlled via a dedicated lever or clutch.
Transmission Fluid:
Typically requires a specialized tractor hydraulic fluid (THF) or equivalent, meeting specific IH specifications. Manual will detail exact fluid type and viscosity.
Instrumentation:
Basic analog gauges for oil pressure, coolant temperature, fuel level, ammeter/voltmeter, tachometer, and hour meter.
Power Steering:
Power steering was often an option, significantly improving maneuverability. Manual covers its operation and repair.
Pto Control:
PTO engagement and speed control mechanisms are detailed, crucial for operating various implements.
Engine Oil Change:
Typically every 100-250 operating hours, or annually, depending on operating conditions. Specific interval in manual.
Air Filter Cleaning:
Frequent inspection and cleaning, especially in dusty conditions; replacement as needed.
Fuel Filter Replacement:
Regular replacement, often every 250-500 hours or annually, to prevent fuel system contamination.
Hydraulic Fluid Type:
IH Hy-Tran (or equivalent), a specialized tractor hydraulic fluid designed for transmissions, hydraulics, and wet brakes.
Coolant Capacity:
Coolant capacity for the engine cooling system will be specified, typically in the range of 12-15 quarts (11-14 liters).
Hydraulic System:
Potential for hydraulic pump wear, leaky seals, or control valve issues due to age and usage. Manual provides troubleshooting.
Engine Starting:
Cold starting issues can occur with older diesel injection systems; glow plug system health is critical. Manual covers glow plug testing.
Transmission Shifting:
Worn synchronizers or clutch packs can lead to difficult shifting. Manual details clutch adjustment and transmission disassembly.
