Submersible sewage pump how to maintain how to maintain good use

In order to ensure the normal use and service life of submersible sewage pump, regular inspection and maintenance should be carried out:
1, to replace the sealing ring: long-term use in water media, the gap between the impeller and the sealing ring can be increased, resulting in decreased pump flow and efficiency, should turn off the switch, lift the pump, remove the bottom cover, remove the sealing ring, according to the actual size of the impeller mouth ring sealing ring, the gap is generally about 0.5mm.
No 2, submersible sewage pump long-term, cleaning should be lifted and placed in ventilated and dry place, pay attention to antifreeze. If placed in water, at least 15 days running 30min (not dry mill), in order to check its function and adaptability.
3, cable inspection at least once a year, if damaged, please give the replacement.
4, at least once a year to check the motor insulation and fastening screws, if the motor insulation, please contact the company's after-sales service department, if the fastening screw loose, please re tighten.
5, submersible sewage pump in the factory has been injected into the appropriate amount of oil, used to lubricate the mechanical seal, the oil should be checked once a year. If there is water in the oil, should be let go, change the oil, the replacement gasket, tighten the plug. Three weeks later, it is necessary to re check, if the oil and emulsion, the mechanical seal should be checked, if necessary, should be replaced (with the company's after-sales service department). Note: oil is 32 mechanical oil.
6, submersible sewage pump operation after the failure, please according to the given troubleshooting method to eliminate, will be resolved, and can not determine the cause, not to dismantle the repair, should contact the customer service department immediately.