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China1. The reason why the submersible pump can't rotate may be that the liquid being transported is corrosive. Ordinary cast iron sewage pumps are easily corroded. The impeller nut is corroded and loosened, causing the impeller to contact the submersible pump body and causing the submersible pump to rotate. Do not move, it is recommended to use stainless steel submersible pump products made of stainless steel.
2. The reason why the submersible pump can't rotate may also be that the sewage pump used is an automatic stirring sewage pump with stirring function, it is very likely that the fiber or other sundries contained in the liquid being transported are entangled on the impeller or After being blocked in the pump body, the submersible pump will not rotate.
3. The reason why the submersible pump can't rotate may also be caused by the damage of the submersible pump's bearings, which causes the submersible pump to jam and trip as soon as the pump control cabinet is started. At this time, new bearings should be replaced.
4. After replacing the new bearing, the phenomenon still appears to be unable to rotate. At this time, the reason why the submersible pump does not rotate may also be the problem of the motor rotor of the submersible pump. The diameter of the motor rotor is slightly thicker, resulting in the submersible pump motor. It is difficult to rotate. In this case, it can only be solved by replacing the new motor rotor or removing the old motor rotor and turning it on the lathe for about 30 microns.
.jpg?imageView2/2/w/326/h/326/format/jpg/q/75 "LSA automatic cold and hot self-priming pump-(2)")
