Inspection and Maintenance of Submersible Sewage Pumps


Published:

Dec 24,2023

In order to ensure the normal use and life of the submersible sewage pump, regular inspection and maintenance should be carried out.

Inspection and Maintenance of Submersible Sewage Pumps

In order to ensure the normal use and life of the submersible sewage pump, regular inspection and maintenance should be carried out,specifically, it includes the following points:

When the submersible sewage pump is not used for a long time, it should be cleaned and hoisted in a ventilated and dry place, and attention should be paid to anti-freezing. If placed in water, run at least 30min every 15 days (no dry grinding) to check its function and adaptability.

Check the motor insulation and fastening screws at least once a year, if the motor insulation drops, please find someone to repair, if the fastening screws are loose, please re-tighten.

Replace the sealing ring: after long-term use in the sewage medium, the gap between the impeller and the sealing ring may increase, resulting in a decrease in the flow and efficiency of the pump, the electric switch should be turned off, the pump should be lifted, the bottom cover should be removed, the sealing ring should be removed, and the sealing ring should be matched according to the actual size of the impeller mouth ring, and the gap is generally about 0.5mm.

Cables should be inspected at least once a year and replaced if damaged.

The submersible sewage pump has been injected with the appropriate amount of oil to lubricate the mechanical seal before leaving the factory, and the oil should be inspected once a year. If water is found in the oil, it should be discharged, the oil should be changed, the gasket should be replaced, and the screw plug should be tightened. After three weeks, the mechanical seal should be re-inspected and replaced if necessary, if the oil becomes an emulsion again.

After the operation of the submersible sewage pump fails, please eliminate it according to the troubleshooting method given, if it still cannot be solved, and the cause cannot be determined, do not dismantle and repair it without permission, and should immediately find a special person to repair.

Keyword:

subersible sewage pump