This manual pertains to the Allis-Chalmers D10, a tractor model produced from the late 1950s into the early 1960s. As a product of the Allis-Chalmers Manufacturing Company, a respected American producer of agricultural machinery, the D10 represents a lineage of robust and reliable farm equipment. While specific production years are not detailed, the model succeeded earlier tractors and preceded the D12, indicating its place in the company's evolution. This tractor, typically featuring around 30-40 PTO horsepower, was designed for agricultural applications and is known for its sturdy construction. The Allis-Chalmers D10 Service Repair Manual, identified as a WSM (Workshop Service Manual), provides comprehensive coverage for all major service and repair areas. It includes detailed instructions for engine overhaul, fuel and electrical systems, transmission and drivetrain, hydraulics, steering, braking, cooling, chassis, and body components. The manual is designed to assist tractor owners, mechanics, and repair shops by offering step-by-step repair procedures, diagnostic guides, adjustment instructions, and information on routine maintenance, lubrication, and fluid specifications. With included pictures and wiring diagrams, this English-language manual is intended to be a complete resource for maintaining and repairing the Allis-Chalmers D10.