The Case 530, 531, 540, and 541 tractors, produced primarily in the 1960s and early 1970s, represent a lineage of robust and reliable agricultural machinery from the J.I. Case Company. These tractors were engineered for versatility and durability, featuring Case-built diesel or gasoline engines typically in the 40-65 HP range, designed for strong low-end torque essential for farming operations. They commonly came equipped with manual transmissions, offering multiple gear options for various tasks, and featured standard PTO speeds for implement compatibility. Known for their rugged construction, these tractors were a staple in agricultural settings, valued for their dependable performance and ability to handle demanding workloads. This comprehensive workshop service repair manual provides detailed guidance for the Case 530, 531, 540, and 541 tractor series, covering all models, engines, and transmission types. It encompasses complete service and repair procedures, from routine maintenance such as oil and filter changes to in-depth engine, transmission, and hydraulic system overhauls. The manual includes step-by-step instructions for component disassembly, repair, and reassembly, along with troubleshooting guides, electrical system diagrams, and chassis maintenance. It is designed to assist farm owners, mechanics, and restoration enthusiasts in effectively maintaining and repairing these tractors, enabling them to perform necessary work and save on labor costs.