This service repair manual covers the 424 Tractor, a robust piece of agricultural machinery introduced in the mid-1960s. Renowned for its reliability and engineering quality, the 424 Tractor was a key part of the modernized agricultural line, designed to meet the demanding needs of farm work. Its typical diesel engine, with approximately 263 cubic inches of displacement and around 55-60 PTO horsepower, provides substantial torque for various tasks. The tractor features a manual gearbox with 8 forward and 2 reverse speeds, a dual-stage clutch, and standard 540 RPM PTO capabilities, making it a versatile and dependable workhorse. This comprehensive English-language service manual provides in-depth guidance for owners, mechanics, and technicians. It details repair and service procedures for all major systems, including the engine, transmission, brakes, electrical, cooling, fuel, steering, axles, chassis, hydraulics, and power take-off. The manual includes general maintenance, troubleshooting diagnostics, disassembly and reassembly instructions, periodic lubrication schedules, and clear wiring diagrams. With high-resolution illustrations and searchable text, this digital manual empowers users to perform complex repairs and maintenance with confidence, ensuring the longevity and optimal performance of their 424 Tractor.