The Allis-Chalmers Model 175 Tractor represents a robust and reliable piece of agricultural machinery, designed for general-purpose farming and utility work. Manufactured by Allis-Chalmers, a historically significant American company known for its agricultural equipment, this tractor likely emerged during the 1970s, continuing the brand's legacy of dependable performance. Its design emphasizes practicality and durability, featuring a diesel engine with an estimated 45-55 PTO horsepower, a manual gearbox, and a standard PTO engagement system. With an approximate operating weight of 4,500 to 5,500 lbs, it is well-suited for a variety of tasks on the farm. This comprehensive Workshop Service Repair Manual provides essential information for the maintenance and repair of the Allis-Chalmers Model 175 Tractor. It covers a wide array of critical systems, including detailed procedures for the engine, transmission, hydraulic system, electrical system, fuel system, cooling system, braking system, steering system, power take-off, chassis, and body components. The manual offers step-by-step repair instructions, overhaul procedures, diagnostic guides, and troubleshooting assistance, making it an invaluable resource for professional technicians, advanced DIY mechanics, and owners seeking to maintain their tractor's optimal performance and longevity.