This workshop repair service manual covers the Allis-Chalmers 8010 and 8030 agricultural tractors. Allis-Chalmers has a long history of manufacturing robust and reliable agricultural and industrial equipment, and the 8000 series tractors represented a significant advancement, designed for power and versatility in farming applications. This manual provides professional-grade repair and maintenance information, mirroring dealership-level resources to enable significant cost savings on repairs. It is complete and intact, containing hundreds of pages of diagrams and detailed information, written by manufacturers and considered the most accurate and complete resource available. This comprehensive English-language manual is designed for farm owners, agricultural mechanics, maintenance shops, and restoration enthusiasts. It covers all models, engines, trim types, and transmission types, offering detailed step-by-step repair procedures for all major systems, including the engine, lubrication, cooling, fuel, transmission, drive chain, rear and front axles, brakes, steering, shocks, body work, intake/exhaust, hydraulic, and electrical systems. It also includes routine maintenance procedures, advanced troubleshooting guides, complete disassembly and reassembly instructions, and wiring diagrams. The manual's depth allows for everything from routine maintenance to complete engine and component rebuilds, enabling users to pinpoint the root cause of mechanical and electrical issues.