This comprehensive manual provides detailed information on the International Harvester McCormick B250 and B275 tractors, designed to empower servicemen with the knowledge and guidance needed for effective maintenance and repair. The manual delves into specific procedures, covering a wide range of tasks beyond basic overhauls, making it an invaluable resource for routine maintenance and troubleshooting. A particular focus is placed on the single drop arm steering system implemented in later B-250 models, offering in-depth instructions not found in previous manuals. Additionally, the introduction of the Constant Running Power Take-Off (CRPTO) feature in the B-275 is addressed comprehensively, providing essential information for understanding and servicing this system. Beyond these specific aspects, the manual encompasses a wealth of information relevant to all servicemen working on these tractors, ensuring a thorough understanding of their operation and maintenance needs.

The International Harvester McCormick B250 and B275 tractors were a pair of compact, versatile machines introduced in the mid-1960s, designed to serve a wide range of agricultural tasks. The B250, equipped with a 25 horsepower engine, catered to smaller farms and general applications, while the B275, boasting a 27 horsepower engine, offered a bit more power for heavier tasks. Both tractors featured a distinctive design with a curved hood, a wide, comfortable operator station, and a robust build quality that made them reliable workhorses. The B250 and B275 were available with a choice of transmissions, including a manual gearbox and a synchronized gearbox that provided smoother and more efficient operation. They were also offered in various wheel configurations, allowing farmers to tailor them to their specific needs and terrain types. Beyond basic farm chores, the B250 and B275 could be equipped with a vast array of implements, further enhancing their versatility. These included a variety of mowers, plows, cultivators, loaders, and even a small backhoe. This allowed farmers to utilize these tractors for tasks ranging from cultivating crops and mowing hay to loading materials and digging trenches. The combination of compact size, reliable performance, and diverse capabilities made the B250 and B275 popular choices for small to medium-sized farms, as well as for landscaping and other industrial applications. They represented a significant upgrade over previous generations of compact tractors, offering increased power, comfort, and versatility to users. While no longer in production, these tractors continue to be valued for their practicality, durability, and ease of maintenance, with many still in operation today.