Attention to the use of mobile submersible sewage pump

Attention to the use of mobile submersible sewage pump:
1, can not be a long period of low lift pump condition (general use head shall not be less than the rated head of 60%), the best use can control the lift range in the proposed within, to prevent electric pumps due to overload and burn the motor.
2, pump before use should be carefully check whether the cable is damaged, the fastener is loose or fall off, pump in the transportation, storage and installation process has no deformation or damage.
3, using 500V megger electric pump motor and relative insulation resistance, and its value should not be less than 2 ohm, or deal with the stator winding of drying, drying temperature is not allowed to exceed 120 DEG C.
4, the installation of the series of pumps are fixed and mobile two. When using a fixed type automatic installation, the chain were put into (from the pump outlet, the connection should be parallel to the pump outlet) two screw rings or lifting plate on the lifting pump. Slowly slide down the slide until it is automatically coupled in place. When using the mobile installation, first put the hose, with chain wear into two rings under the lifting pump, attention can not be used as cut cable rope, in order to avoid danger.
The direction of rotation 5, after the pump is switched from the inlet to see the rotation is counterclockwise, if the pump reverse, only two lines in any cable connection position can be reversed.
A wire 6, electric pump must be in strict accordance with the relevant regulations in order to ensure that when used properly connected, personal safety in electric pump operation, is strictly prohibited in the near installation, others do? ~ or move, just in case the pump leakage accident.
7, the electric pump in no special circumstances must be equipped with automatic water pump control cabinet, do not hang directly or use the grid switch to connect the power supply, to ensure the normal operation of electric pump.
8, no self circulation cooling device of the pump is strictly prohibited without the overall long-term operation of the water, to prevent overheating of the pump.