This comprehensive workshop service repair manual provides detailed instructions and technical specifications for the Allis Chalmers Model D-21 series II Tractor. It covers a wide range of topics essential for maintaining, troubleshooting and repairing your tractor, including engine, transmission, hydraulics, electrical systems, and more. With clear diagrams, step-by-step procedures, and comprehensive troubleshooting guides, this manual empowers you to confidently perform a variety of maintenance and repair tasks. You'll find everything you need to keep your Allis Chalmers Model D-21 series II Tractor operating at peak performance.

The Allis-Chalmers Model D-21 Series II Tractor, a mainstay of agriculture in the mid-20th century, was a robust and versatile farming machine built to tackle a wide range of tasks. Introduced in the 1950s, the D-21 Series II was an evolution of the original D-21, incorporating several improvements designed to enhance performance and user experience. Power came from a dependable Allis-Chalmers gasoline engine, offering ample torque for plowing, seeding, and other demanding field operations. The tractor featured a sturdy cast-iron frame and a durable transmission, capable of handling the rigors of continuous agricultural work. The Model D-21 Series II was known for its user-friendly design, with well-placed controls and a comfortable operator's station. Its versatility was further enhanced by a variety of available attachments, allowing it to handle tasks beyond traditional plowing. From baling hay to operating a manure spreader, the D-21 Series II proved to be a valuable asset for farmers of all sizes. While production of the D-21 Series II eventually ceased, its legacy endures. Many of these tractors remain in use today, cherished for their reliability and timeless design. The Allis-Chalmers Model D-21 Series II continues to be a symbol of the golden era of American farm machinery, a time when simplicity and practicality were paramount.