Tractor Service Manual: International Farmall M, MD, 6 Series & Related Tractors - Diagnostic, Maintenance & Repair Handbook

International Farmall M, MD, and 6 Series Service Coverage

• Covers the International Farmall M, MD, and 6 Series, including Crawler T-6/TD-6, Orchard O-6/OS-6/ODS-6, and U-6/UD-6 Power Units
• Original OEM publication, International Harvester GSS-5033 Service Manual
• Contains 90+ technical diagrams, including exploded-view illustrations of the carburetor, oil pump, fuel system, and steering clutch
• Accessible from your device as soon as the order is placed
• Permanent availability in your purchase account — no re-buy required
• Suitable for printing individual sections for shop-floor use
• OCR text layer lets you jump to a torque spec by keyword
• This 138-page manual provides the factory-authorized diagnostic and maintenance parameters for these classic tractors and power units

Mechanical and Fuel System Documentation

This factory service publication provides in-depth technical documentation for the International Farmall M, MD, and 6 series tractors. The manual details the assembly and adjustment specifications for both carbureted and Diesel engine configurations. It addresses the internal components of the power plant, such as cylinder liners, piston ring gaps, valve lever clearances, and camshaft bearings, ensuring that the tractor's power unit is maintained within original design limits. The documentation also covers the ignition system, including magneto maintenance, and the fuel system, detailing the function and service requirements of the Model E-12 carbureted fuel components and the single-plunger Diesel injection pump.

Specification Highlights

Detailed technical tables provide torque values, cooling system capacities, and gear speed specifications across the entire series. The manual lists cylinder head stud tension at 110 ft.-lb. and main bearing cap nut torque between 100 and 150 ft.-lb. depending on the engine configuration. Fuel injection nozzle opening pressure is specified at 700 lb. per sq. in. for Diesel models. Reference data covers fluid capacities, tire tread widths, and power take-off (PTO) speed information. Valve clearance for the intake is listed at 0.017 inches in the engine data specification table. Coolant system capacity for these units is documented between 6 and 10.5 gallons. The T-6 crawler tractor oil pump pressure is specified at 60–70 lb. at governed speed. This manual is an essential reference for the maintenance and restoration of 1940s–1950s IH equipment, providing the correct technical data for all listed models.