1. Keep the equipment clean, dry, oil-free, and leak free
2. Check whether the running sound of the centrifugal pump is normal, whether there is vibration or leakage every day, and promptly handle any problems found
3. Check whether the oil level in the suspension oil chamber of the centrifugal pump is suitable every day, and it must be maintained at 1/3 and 2/3 of the oil level gauge
4. It is strictly prohibited for centrifugal pumps to work when the liquid in the water tank (barrel) is evacuated, as centrifugal pumps not only vibrate violently during the evacuation state, but also affect the pump's lifespan. Therefore, special attention must be paid
5. It is strictly prohibited to enter metal objects, as well as flexible substances such as rubber, cotton yarn, plastic cloth, etc. in the centrifugal pump to avoid damaging the flow components of the pump and blocking the impeller flow channel, which may prevent the pump from working properly
6. Regularly check the concentricity of the claw coupling
7. Centrifugal pumps with packing seals should regularly check the leakage rate at the packing box. The normal leakage rate at the packing box should be 10-20 drops per minute; Otherwise, the tightening position of the packing gland should be adjusted
8. The bearing temperature should be checked frequently, and its maximum temperature should generally not exceed 70 ℃~75 ℃
During the first month of operation of the water pump, after running for 100 hours, replace the lubricating oil in the suspension oil chamber. In the future, replace the lubricating oil every 500 hours of operation of the water pump
10. The support mechanism of the inlet and outlet pipeline system (pipe fittings, valves) of the centrifugal pump should be regularly checked for looseness, ensuring that the support mechanism is firm and the pump body does not bear the support force
11. The fastening condition of the foundation fastening bolts of the centrifugal pump should be regularly checked to ensure that the connection is firm and reliable
When the centrifugal pump is not used for a long time, it should be disassembled, treated with rust prevention, reinstalled, and properly stored for future use
When the backup centrifugal pump installed in the production system is not running for a long time, it should be rotated by 1/4 turn every week to evenly withstand static load and external vibration on the pump shaft
14. After the centrifugal pump has been running for about 2000 hours, periodic inspections, repairs, or replacement of damaged parts should be carried out to keep the pump in good condition
15. For newly installed and repaired centrifugal pumps, it is necessary to first test the rotation of the motor before inserting the pin of the coupling
16. Centrifugal pumps allow the liquid in the pipeline to reverse when the motor is powered off. However, special attention should be paid to setting a check valve on the pipeline when the delivery height difference of the centrifugal pump is particularly large to prevent backflow of return water and control the sudden reversal of the centrifugal pump