The Case 821C Wheel Loader is a robust piece of equipment engineered for demanding operational environments. Featuring a powerful Cummins 6CTA8.3-C turbocharged diesel engine, this loader delivers substantial performance with a net power of 165 hp and a maximum tractive effort of 195 kN. Its design emphasizes reliability and efficiency, incorporating a Powershift transmission with four forward and four reverse gears, and a standard bucket capacity of 3.5 m³. With an operating weight of approximately 22,486 kg, the 821C is built for heavy-duty material handling tasks. This comprehensive manual provides essential information for the maintenance and repair of the Case 821C Wheel Loader. It covers critical areas including detailed service procedures, troubleshooting guides, technical specifications for engine, transmission, and hydraulic systems, along with fluid capacities and service intervals. The manual is designed to assist owners, mechanics, and technicians in ensuring the optimal performance, longevity, and safety of the equipment. Enhanced with bookmarks, searchable text, and an index, this English-language resource offers improved usability for all users.