The Allis-Chalmers WF tractor, produced from 1948 to 1957, is a robust agricultural machine built for demanding farm work. As a successor to the Model B, the WF continued Allis-Chalmers' legacy of reliable and efficient agricultural equipment, featuring a gasoline engine with approximately 22-24 PTO horsepower and a standard 4-speed manual synchromesh transmission. Its design emphasizes durability and functionality, making it a valuable asset for farmers and collectors alike. This tractor represents a significant period in agricultural mechanization, offering practical solutions for a wide range of farming operations. This comprehensive service repair manual provides in-depth information essential for maintaining and repairing the Allis-Chalmers WF tractor. It covers all major systems, including the engine, fuel, cooling, ignition, transmission, clutch, brakes, electrical, and hydraulic systems, offering detailed procedures for maintenance, troubleshooting, diagnostics, repair, disassembly, and overhaul. With factory-level detail, critical specifications, and illustrative diagrams, this manual is an indispensable resource for professional technicians, farm equipment repair shops, and experienced DIY mechanics seeking to preserve the functionality and value of their WF tractor.