This document pertains to the Case 788 & 788 Plus Hydraulic Excavator, a robust piece of equipment designed for demanding construction and excavation tasks. While specific production years are not detailed, these excavators are known for their powerful diesel engines and hydrostatic transmissions, engineered for reliability and efficient operation in various work environments. Their construction emphasizes durability and performance, making them a valuable asset for professionals in the heavy machinery sector. This comprehensive Shop Service Repair Manual provides essential information for the maintenance and repair of your Case excavator. It covers a wide range of topics, including detailed procedures for periodic lubrication, recommended oils, and scheduled maintenance checklists and charts. The manual also includes technical specifications for various systems such as electrical, hydraulic, fuel injection, cooling, brake, suspension, steering, emission, air conditioning, and chassis/body. Furthermore, it details major components, undercarriage specifications, lifting capacities, working range, and a bucket selection guide, ensuring that owners and technicians have the necessary resources to keep the equipment in optimal working condition. Safety hints for operation and maintenance are also included.