1. When using the self-priming centrifugal pump for the first time, you should first check whether the pump body is fixed or not, so as to prevent the pump body from loosening when the motor is opened to the east. This leads to the leakage of the interface.
2. Check the integrity of the power cord and plug before turning on the pump body. In order to prevent electric shock accident, corresponding protective measures such as leakage short circuit device and so on must be installed.
3. The working voltage range of the pump body should be about the rated voltage and should not exceed too much. Otherwise, the service life of the motor will be shortened or even burned.
5. When using the self-priming centrifugal pump, keep the motor dry to prevent the motor from corrosion or short circuit due to moisture. And pay attention to the decline of the water level, the bottom valve of the self-priming centrifugal pump can not be exposed to the water surface, otherwise it will cause the self-priming pump to idle, thus damaging the self-priming centrifugal pump.