The document provides instructions to disassemble and assemble the final drive of an excavator. Key steps include:
1. Removing the final drive cover, carrier assembly, ring gears, and other components.
2. Disassembling the carrier assembly by removing planetary gears and shafts.
3. Reassembling starts with installing bearings in the main housing and determining the correct shim thickness. Other parts like seals and gears are then reinstalled in reverse order of disassembly.