This workshop service manual covers the Terex TC 75 and TC 125 excavators. These machines are engineered for demanding operational environments, offering robust performance and reliability. Their design prioritizes efficiency and durability, making them suitable for a wide range of construction and industrial applications. This manual provides comprehensive guidance for the maintenance, repair, and servicing of your Terex excavator. It includes detailed procedures for routine servicing, tune-ups, and extensive repairs involving engine and transmission disassembly. Furthermore, the manual covers troubleshooting, component-level removal and installation, and repair of various systems, including fuel, ignition, lubrication, exhaust, and electrical systems. Safety precautions and the identification of special tools required for specific tasks are also emphasized, ensuring that maintenance is performed correctly and safely.