1. Check the hydraulic system: check the hydraulic system of the fully mechanized excavator for oil leakage or oil blockage, and clean up and repair the problems in time.
2. Check the transmission system: Check the transmission system of the fully mechanized excavator for problems such as gear damage and loose chain, and replace or adjust it in time.
3. Check the electrical system: check the electrical system of the fully mechanized excavator for short circuit, cable damage and other problems, and repair or replace the faulty parts in time.