The Allis-Chalmers 220 Tractor is an agricultural machine built with a focus on reliability and longevity, characteristic of the Allis-Chalmers heritage. This tractor is designed to meet the demanding needs of agricultural work, offering robust performance and durability. While specific production years are not detailed, the 220 Tractor represents a significant contribution to the Allis-Chalmers lineage of agricultural equipment, engineered to provide dependable service for various farm operations. This workshop service and repair manual provides comprehensive guidance for the Allis-Chalmers 220 Tractor. Covering essential systems such as the engine, transmission, drivetrain, hydraulics, electrical, braking, steering, cooling, fuel, operator station, PTO, and hitch systems, this manual offers detailed procedures for maintenance, troubleshooting, repair, disassembly, assembly, and adjustments. With 63 pages of in-depth information, including technical specifications, special tool references, wear limits, and factory settings, this manual is an indispensable resource for mechanics and owners seeking to maintain the optimal performance and extend the lifespan of their tractor.