The document provides instructions for removing and installing various components of the rear power take-off (RPTO) system on a Caterpillar D11R track-type tractor, including the adapter, bearing cups and cones, hydraulic pump drive gear, and nuts and bolts. Specific tools are listed and illustrations show the components and steps to disassemble and reassemble the RPTO. Separate sections provide procedures for removing and installing the vibration damper and pulley.