This comprehensive manual package provides detailed information for servicing and repairing International Harvester Farmall 4 Series tractors and power units. The manuals cover a wide range of models, including the I4 (I-4) Industrial Tractor, IU4 (IU-4) Power Unit, O4 (O-4) Standard & Grove Tractors, OS4 (OS-4) Orchard Tractor, U4 (U-4) Power Unit, W4 (W-4) Standard Tractor, and Super W4 Tractor. The first manual, the complete factory service manual, offers an in-depth guide to servicing and maintaining these tractors. It covers everything from basic introductions and serial number identification to detailed sections on the engine, ignition system, electrical equipment, cooling system, fuel system and air cleaner, service charts, engine clutch, transmission, differential and brakes, chassis, attachments, dimensional drawings, and specifications. This manual provides clear and concise instructions, supported by numerous illustrations and diagrams, making it an invaluable resource for any mechanic or owner. The second manual is a comprehensive aftermarket shop manual designed to provide detailed information on a wide range of tractor components. It includes sections on belt pulley, brakes, carburetor, clutch, cooling system, diesel fuel system, differential, electrical system, engine, final drive, front system, governor, hydraulic lift-alls, ignition system, LP gas system, power take-off, rear axle, starting system (diesel), service data, steering gear, touch control, and transmission. With its detailed instructions, illustrations, and diagrams, this manual provides a comprehensive guide for repairing and maintaining these tractors. Both manuals are fully indexed, searchable, and bookmarked, making it easy to find the information you need quickly. These manuals are ideal for both professional mechanics and DIY enthusiasts who want to perform maintenance and repairs on their own Farmall 4 Series tractors.

The IH Farmall 4 Series, produced by International Harvester, was a line of versatile and robust tractors designed for a variety of agricultural applications. This series encompassed several models, each catering to specific needs: the I4 (I-4) for industrial tasks, the IU4 (IU-4) as a power unit, the O4 (O-4) for standard and grove work, the OS4 (OS-4) tailored for orchards, the U4 (U-4) serving as a power unit, the W4 (W-4) for standard agricultural duties, and the Super W4 boasting enhanced performance. While each model shared the core Farmall 4 Series design, they featured variations in engine size, horsepower, and specialized features. These tractors were known for their durability, efficiency, and user-friendly design. They were powered by International Harvester's reliable diesel or gasoline engines, offering impressive power for plowing, cultivating, hauling, and other agricultural operations. The Farmall 4 Series featured a robust transmission system with numerous gears, allowing for precise speed control and optimal performance in diverse conditions. Additionally, the tractors were equipped with a hydraulic system for operating implements, making them highly adaptable to a range of tasks. The IH Farmall 4 Series, with its comprehensive model lineup, offered farmers and ranchers a reliable and powerful tool for a diverse array of agricultural applications.