This workshop service manual provides comprehensive repair and overhaul information for the Allis-Chalmers 7060 and 7080 Tractors. Allis-Chalmers, a historic American manufacturer, is known for its robust agricultural and industrial equipment. These tractors represent a significant series within the company's lineup, designed for demanding tasks. This manual is intended to help owners and technicians understand component functions, judge overall tractor performance, and facilitate quality service, ensuring users get the best value from their machinery. The scope of this manual is extensive, covering routine maintenance, diagnostic procedures, component removal and installation, assemblies, disassemblies, tune-ups, and overhaul procedures. It details critical systems including the engine, transmission, fuel, ignition, lubrication, exhaust, electrical, cooling, hydraulic, drive train, braking, and steering systems. Troubleshooting guides and instructions for proprietary components are also included. This resource aims to enhance user knowledge and repair capabilities, enabling professional-level maintenance and repairs through clear instructions, safety warnings, and identification of special tools.