The document provides instructions for removing the final drive and travel motor or an excavator. It lists the required tools and gives step-by-step instructions involving disconnecting hoses, removing bolts, and using lever pullers and lifting devices to separate the final drive and travel motor assembly. Similarly, it provides instructions for installing the final drive and travel motor, including applying thread sealant, installing seals and fittings, and tightening bolts to the specified torque.