Target Audience:
        
        
            Professional technicians, farm equipment repair shops, and serious do-it-yourself mechanics.
        
     
    
    
        
            Advantage:
        
        
            Instant download eliminates shipping costs and waiting time, offering immediate access to crucial repair information.
        
     
    
    
        
            Benefit Of Digital:
        
        
            Ability to print specific sections for workshop use, avoiding damage to the primary document from grease and dirt.
        
     
    
        
            Authoritative Source:
        
        
            Written by professionals and often considered equivalent to original factory service manuals, providing accurate and complete data.
        
     
    
    
        
            Cost Savings:
        
        
            Empowers owners to perform repairs and maintenance themselves, reducing reliance on expensive dealership labor.
        
     
 
    
    
    
        
            Engine:
        
        
            Complete overhaul, repair, and maintenance procedures for the International Harvester D-358 or DT-358 diesel engine.
        
     
    
        
            Transmission:
        
        
            Repair, maintenance, and adjustment of the Power Transfer Center (PTC) transmission and associated components.
        
     
    
        
            Hydraulic System:
        
        
            Troubleshooting, repair, and maintenance of the tractor's hydraulic system, including the lift-all, power steering, and PTO hydraulics.
        
     
    
        
            Electrical System:
        
        
            Comprehensive wiring diagrams, troubleshooting, and repair of the electrical system, including lighting, starting, charging, and instrumentation.
        
     
    
        
            Fuel System:
        
        
            Service and repair for the diesel fuel injection system, including pump and injector servicing.
        
     
    
        
            Cooling System:
        
        
            Maintenance and repair of the engine's cooling system, including radiator, thermostat, and fan assembly.
        
     
    
        
            Brake System:
        
        
            Repair and maintenance of the hydraulic disc brakes.
        
     
    
        
            Drive Axle And Differential:
        
        
            Service and repair of the final drives and differential.
        
     
    
        
            Steering System:
        
        
            Repair and maintenance of the hydrostatic power steering system.
        
     
    
        
            Chassis And Frame:
        
        
            Inspection and repair of the tractor's frame and chassis components.
        
     
    
        
            Body And Sheet Metal:
        
        
            Information on body panel removal, installation, and adjustment.
        
     
    
    
        
            Maintenance:
        
        
            Periodic maintenance charts, lubrication schedules, and routine servicing procedures.
        
     
    
        
            Repair:
        
        
            Step-by-step repair instructions for all major tractor components and systems.
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic information and troubleshooting guides for common issues and failures.
        
     
    
        
            Overhaul:
        
        
            Detailed overhaul procedures for engines, transmissions, and hydraulic components.
        
     
    
        
            Diagnostics:
        
        
            Technical insights for diagnosing system malfunctions.
        
     
    
    
        
            Depth:
        
        
            Comprehensive: Suitable for professional technicians and advanced DIY mechanics, covering everything from routine maintenance to complete engine and transmission rebuilds.
        
     
 
    
    
    
        
            Engine Model:
        
        
            International Harvester D-358 (Naturally Aspirated) or DT-358 (Turbocharged Diesel)
        
     
    
    
        
            Displacement:
        
        
            358 cubic inches (5.87 Liters)
        
     
    
        
            Configuration:
        
        
            Inline 6-cylinder, naturally aspirated or turbocharged, direct injection diesel
        
     
    
    
        
            Horsepower D358:
        
        
            Approximately 83 PTO HP (rated for D-358)
        
     
    
        
            Horsepower Dt358:
        
        
            Approximately 103 PTO HP (rated for DT-358)
        
     
    
    
        
            Injection Type:
        
        
            Direct Injection, Bosch inline injection pump
        
     
    
    
    
    
        
            Oil Type:
        
        
            Refer to manual for specific API CD or CE rated diesel engine oil, viscosity depends on ambient temperature (e.g., SAE 15W-40 is common).
        
     
 
    
    
    
        
            Transmission Type:
        
        
            10-speed Power Transfer Center (PTC) transmission with High-Low range selector.
        
     
    
    
        
            Powershift:
        
        
            Not standard; refers to the PTC's range shifting.
        
     
    
    
        
            Gear Selection:
        
        
            10 forward speeds, 2 reverse speeds.
        
     
    
    
        
            Transmission Oil Type:
        
        
            Refer to manual for specific IH Hy-Trans fluid or equivalent.
        
     
 
    
    
    
        
            Length:
        
        
            Approximately 145 inches (3683 mm) without 3-point hitch.
        
     
    
        
            Width:
        
        
            Approximately 76 inches (1930 mm) at rear axle housing.
        
     
    
        
            Height:
        
        
            Approximately 98 inches (2489 mm) to top of exhaust stack.
        
     
    
    
        
            Operating Weight:
        
        
            Approximately 9,000 - 10,000 lbs (4082 - 4536 kg), depending on configuration.
        
     
    
    
        
            Wheelbase:
        
        
            Approximately 92 inches (2337 mm).
        
     
 
    
    
    
        
            Original Features:
        
        
            Basic operator controls, analog gauges for engine speed, temperature, oil pressure, and fuel level. AM radio might have been an option.
        
     
    
    
        
            Steering:
        
        
            Hydrostatic power steering for ease of operation, especially when loaded or turning at low speeds.
        
     
    
    
        
            Power Takeoff:
        
        
            Independent 540/1000 RPM PTO, a crucial feature for powering implements.
        
     
    
    
        
            Hydraulic Lift:
        
        
            Category 2, 3-point hitch with draft control and position control for implement management.
        
     
 
    
    
    
        
            Engine Oil Change:
        
        
            Typically every 250 operating hours (refer to manual for precise IH recommendations).
        
     
    
        
            Fuel Filter Replacement:
        
        
            Recommended at regular intervals, often tied to hours or fuel consumption.
        
     
    
        
            Hydraulic Filter Replacement:
        
        
            Periodic replacement as per manual recommendations, critical for system longevity.
        
     
    
    
        
            Hydraulic Transmission Fluid:
        
        
            IH Hy-Trans (or approved equivalent) for the transmission, differential, and hydraulic reservoir. Capacity around 13 gallons (49 liters).
        
     
    
        
            Coolant Type:
        
        
            Ethylene glycol antifreeze mixture with water, typically a 50/50 mix for freeze protection.
        
     
    
    
        
            Common Wear Items:
        
        
            Clutch wear, hydraulic pump issues, PTO clutch wear, and potential for injector pump calibration drift over time.
        
     
    
        
            Electrical Gremlins:
        
        
            Older wiring harnesses can degrade, leading to intermittent electrical faults. Manual's wiring diagrams are essential for diagnosis.
        
     
 
    
    
    
        
            Manufacturer:
        
        
            International Harvester (IH), a historic American manufacturer of agricultural and industrial machinery.
        
     
    
    
        
            Series:
        
        
            Part of the acclaimed '966' series, known for their robust build and performance.
        
     
    
    
        
            Production Years:
        
        
            Approximately 1971-1976.
        
     
    
    
        
            Legacy:
        
        
            The 1066 was a popular and powerful tractor, widely used in agriculture for its versatility and durability.