This comprehensive service repair manual is a must-have for anyone who owns an Allis Chalmers D-21, D-21 Series II, 210, or 220 tractor. It offers detailed instructions and high-quality diagrams covering every aspect of your tractor, from the front bumper to the rear. With this manual, you can confidently tackle a wide range of maintenance and repair tasks, saving time and money. The manual covers essential systems including brakes, clutch, cooling system, diesel fuel system, differential, electrical components, engine, final drive and differential, front system, front wheel assist, power lift system, power steering, power take-off, transmission (front and dual range), and much more. This manual is a valuable resource for both experienced mechanics and do-it-yourselfers.

The Allis-Chalmers D-21 series of tractors, including the D-21, D-21 Series II, 210, and 220 models, were a significant force in the agricultural industry during the mid-20th century. These robust workhorses were known for their reliability, power, and versatility, serving a wide range of tasks on farms across the globe. Introduced in the 1950s, the D-21 series boasted a powerful diesel engine, a sturdy construction, and a user-friendly design that made them popular among farmers. The D-21, the original model in the series, featured a 115-horsepower engine and a 3-point hitch system. The D-21 Series II was a later iteration, incorporating refinements and enhancements to improve performance and user experience. The 210 and 220 models, released in the 1960s, offered increased horsepower and improved features, solidifying their positions as reliable and efficient tractors.

The D-21 series tractors were equipped with a variety of features that made them highly adaptable to different farming applications. The 3-point hitch system allowed for a wide range of implements to be attached, from plows and cultivators to harrows and mowers. The tractors also featured power steering for easier maneuverability, and hydraulic brakes for reliable stopping power. Their spacious cabins provided comfortable and ergonomic operation, while the durable construction ensured years of reliable service. The D-21 series tractors played a vital role in the development of modern agriculture, and their legacy continues today as collectors and enthusiasts appreciate their historical significance and mechanical prowess. The D-21 series tractors, with their enduring reliability and versatility, remain a testament to the ingenuity and skill of the Allis-Chalmers engineers, forever etched in the annals of agricultural machinery.