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1. Determine when and how many people will be on-site.

2. Before on-site maintenance, it is necessary to confirm the spare parts inventory, the time required for maintenance, the maintenance situation of the maintenance site, and the working equipment and tools required for maintenance.

3. After arriving at the site, confirm the model and order number of the pump again. To distinguish the warranty period of the centrifugal pump.

4. According to the operating status of the pump unit on site, evaluate the authenticity of the information, confirm the cause of the failure of the pump unit, and record the static and dynamic data of the pump unit at this time.

5.专业和适切地解决乱发广告e phenomena of the on site pump unit.

6. After the on-site service is over, count all the items brought into the site (to prevent items from being left in the pump)

7. Before restarting the water pump unit, please confirm that the power supply and water supply system are safe and in good condition. Next, turn the centrifugal pump and motor coupling by hand so that the rotor can turn easily without jamming.

8. Start the pump set according to the centrifugal pump start-up procedure, adjust to the operating point,

9. Detect and record the data during the operation of the centrifugal pump unit, and compare it with the previously recorded data.