VOLVO Swing Motor Seal Kit The daily maintenance of excavator hydraulic pumps includes the following aspects: 1. Regularly replace hydraulic oil: According to usage and manufacturer's requirements, regularly replace hydraulic oil to ensure the normal operation of the hydraulic system. 2. Cleaning the hydraulic oil tank: Regularly clean the hydraulic oil tank to prevent impurities from entering the hydraulic system and affecting the normal operation of the hydraulic pump. 3. Check the hydraulic oil filter: Regularly check the working status of the hydraulic oil filter and replace it in a timely manner if necessary. 4. Check hydraulic pipelines and joints: Regularly check the sealing and connection status of hydraulic pipelines and joints. If there are leaks or looseness, repair or replace them in a timely manner. 5. Check the working pressure of the hydraulic pump: Regularly check the working pressure of the hydraulic pump to ensure that it operates within the normal range. 6. Regularly inspect the shaft seal and sealing components of the hydraulic pump: Check whether the shaft seal and sealing components of the hydraulic pump are worn or aged, and replace them in a timely manner if necessary. 7. Regularly clean the radiator of the hydraulic pump: Clean the radiator of the hydraulic pump to maintain good heat dissipation and prevent overheating of the hydraulic pump. 8. Regularly check the vibration and noise of the hydraulic pump: Regularly check the vibration and noise of the hydraulic pump, and if there are any abnormalities, promptly troubleshoot. 9. Regularly check the oil seal of the hydraulic pump: Check whether the oil seal of the hydraulic pump is worn or aged, and replace it in a timely manner if necessary. 10. Regular maintenance and upkeep of hydraulic pumps: According to the usage of hydraulic pumps and the manufacturer's requirements, regular maintenance and upkeep of hydraulic pumps, including cleaning, lubrication, fastening, etc.