This manual covers McCormick International Farmall Cub tractors, including the 140, 240, and 340 variants. These robust agricultural machines, produced from the mid-1950s through the late 1970s, are renowned for their reliability and versatility in a wide range of farming and utility applications. The Farmall Cub series, a foundational line for International Harvester, evolved to offer increased power and capability with later models, cementing their legacy in small-scale agriculture. Their simple yet effective engineering ensures enduring performance for owners, mechanics, and enthusiasts alike. This comprehensive factory service repair workshop manual provides detailed information for maintaining and repairing your McCormick Farmall International Cub tractor. It covers all essential systems, including the engine, transmission, fuel, electrical, hydraulics, steering, brakes, chassis, and operator controls. With step-by-step instructions, detailed diagrams, and precise specifications, this manual is an indispensable resource for routine maintenance, troubleshooting, and complete overhauls, ensuring your tractor remains in optimal working condition.