1, replace the seal ring: After long-term use sewage medium, the gap between the impeller and the seal ring may increase, resulting in decreased pump flow and efficiency, should turn off the gates, the water pump is lifted, remove the bottom cover, remove seal ring, according to the actual size of the impeller mouth ring with sealing ring, the gap is generally about 0.5mm.
2, when not long submersible sewage pump, should be cleaned and lifted dry and ventilated place, pay attention to antifreeze. When placed in water, at least every 15 days running 30min (not dry grinding), to check its functionality and adaptability.
3, the cable inspection at least once a year, if damaged, please give replacement.
4, at least once a year to check the motor insulation and fastening screws, if the motor insulation deterioration, please find someone repair, if the fastening screws are loose, please re-tighten.
5, non-clogging submersible sewage pump at the factory into the amount of oil to lubricate the mechanical seal, the oil should be checked once a year. If you find oil in the water, it should be let go, change the oil, replace the gasket, tighten the plug. After three weeks, to be re-examined if the oil and into the emulsion, the mechanical seal should be checked and if necessary replaced.
6, after the failure of submersible sewage pump is running, press the fault given Remedy excluded, if still unresolved, while not determine the cause, do not mess privately indiscriminate demolition repair, you should immediately find someone to repair.
