The most critical aspect in hydraulic engineering is the hydraulic gate, as only the hydraulic gate can effectively control water resources. The discharge and storage of water are all controlled by the hydraulic gate and the hoist. Therefore, the daily maintenance and upkeep of the gate and hoist are very important, especially during use. Their maintenance and repair should be carried out in daily use. Only by doing a good job in daily maintenance and repair can the service life of equipment in hydraulic engineering be greatly increased, and the development of the hydraulic industry be better promoted.