The way to operate the deep well pump

- 2021-10-25-

1. The deep well pump shall be used in the clean water source with sand content less than 0.01%. The pump room shall be equipped with pre moistening water tank, and the capacity shall meet the pre moistening water volume required for one-time startup.

2. For the newly installed or overhauled deep well pump, the clearance between the pump shell and the impeller shall be adjusted, and the impeller shall not rub with the shell during operation.

3. Before operation of deep well pump, clean water shall be introduced into the shell of shaft and bearing for pre lubrication.

4. Before starting the deep well pump, the inspection items shall meet the following requirements:
1) Foundation bolts of substructure have been fastened;
2) The axial clearance meets the requirements, and the safety nut of the adjusting bolt has been installed;
3) The packing gland has been tightened and lubricated;
4) The motor bearing has been lubricated;
5) Rotating the motor rotor by hand and the stop mechanism are flexible and effective.

5. The deep well pump shall not idle without water. The first and second stage impellers of the water pump shall be immersed 1m below the water level. The change of water level in the well shall be observed frequently during operation.

6. During operation, when large vibration is found around the foundation, check the wear of water pump bearing or motor packing; In case of excessive wear and water leakage, replace it with a new one.

7. The deep well pump that has sucked and discharged mud and sand shall be washed with clean water before stopping the pump.

8. Before stopping the pump, close the water outlet valve, cut off the power supply and lock the switch box. When the pump is stopped in winter, the accumulated water in the pump shall be drained.