This workshop service manual provides comprehensive repair, service, restoration, maintenance, and diagnostic information for CASE 770 and 880 Tractors. Engineered for reliability and performance, these tractors are built to handle demanding tasks, and this manual ensures you have the detailed knowledge required to keep them operating at their peak. It covers a wide range of systems, including engine, hydraulics, powertrain, steering, brakes, and electrical components, offering professional-level technical detail suitable for both experienced mechanics and dedicated owners. This 484-page English-language manual is designed to be an essential help guide for diagnosing, repairing, and maintaining your CASE tractor. It includes step-by-step instructions for all major repairs, detailed troubleshooting guidance for resolving common and complex issues, and specific diagnostic tests for critical systems. With clear, zoomable illustrations, exploded views, and comprehensive wiring diagrams, this manual empowers owners and technicians to perform everything from routine preventative maintenance to complete component rebuilding, ensuring the longevity and efficiency of your CASE 770 or 880 Tractor.