This document is a service manual for CNH Industrial combine harvesters including models TC4.90, TC5.70, TC5.80, TC5.90, and TC5.90 Hillside. The manual contains over 200 sections providing specifications, maintenance, and repair instructions for the combine's engine, transmission, axles, brakes, hydraulics, electrical systems, attachments, and all major operating systems. The sections are organized by functional area and component and include detailed diagrams, part numbers, and troubleshooting steps.