This manual covers the Allis-Chalmers AC170, a versatile and reliable utility tractor produced during the 1960s and early 1970s. Known for its sturdy construction, efficient diesel engine, and adaptable hydraulic system, the AC170 was a significant competitor in its segment, offering strong value and performance for agricultural tasks. This tractor represents a key part of Allis-Chalmers' legacy in agricultural machinery, built in the United States for durability and practical application on farms.

The purpose of this comprehensive service and repair manual is to provide detailed technical information for the maintenance, diagnosis, and repair of the Allis-Chalmers AC170. It covers all integral mechanical, hydraulic, and electrical systems, including the engine, fuel, ignition, cooling, lubrication, clutch, transmission, PTO, hydraulics, steering, brakes, electrical system, chassis, axles, and operator station. This guide is designed for professional mechanics and experienced owners, offering expert-level detail, troubleshooting charts, specific procedures for overhaul and repair, and essential technical specifications to ensure the AC170 remains in optimal working condition.