This manual covers the Case 530, 531, 540, and 541 Tractor Series, manufactured by the J.I. Case Company, a historic American agricultural machinery producer. These robust utility tractors, typically from the 1950s and early 1960s, were designed as dependable workhorses. Their engineering quality and reliability made them popular for various agricultural tasks. The manual provides professional-level repair and maintenance guidance, enabling owners and operators to maintain their equipment effectively and avoid costly dealership services. The scope of this factory service repair workshop manual is extensive, covering all repairs, servicing, and troubleshooting procedures for the Case 530, 531, 540, and 541 Tractor Series. It includes detailed information on engine systems, fuel, ignition, cooling, lubrication, transmission, drive axles, steering, brakes, electrical systems, hydraulics, and power take-off. The manual offers step-by-step instructions for disassembly, assembly, maintenance, and repair, along with critical technical data, specifications, tolerances, and hundreds of diagrams and illustrations. This comprehensive resource is designed to assist owners, operators, mechanics, and repair shops in keeping these vintage tractors in optimal working condition.