This manual covers the Allis-Chalmers 180 and 185 series, renowned for their robust engineering and reliability within the agricultural and industrial machinery sector. These models represent a significant part of Allis-Chalmers' legacy, built upon a foundation of durable construction and practical design. While specific production years are not detailed, the 180/185 series were integral to the brand's offerings, designed for demanding tasks and built to last. Their engineering quality ensures dependable performance, making them a valuable asset for a wide range of applications. This comprehensive service repair manual provides detailed information for maintaining and repairing the Allis-Chalmers 180 and 185. It covers essential systems including the engine, transmission, hydraulic system, electrical system, brakes, cooling system, fuel system, and powertrain. Within its hundreds of pages, users will find step-by-step maintenance and repair procedures, troubleshooting guidance, and detailed technical specifications. The manual is designed to assist both do-it-yourself owners and experienced mechanics in keeping these machines in optimal working condition.