1.The pump should be filled before the start of the pump filled with liquid, no liquid starting.
2.Close the outlet valve, after the power is switched on to immediately check the pump must press the pump turn arrow consistent, non reverse operation.
3.After the pump starts to reach normal speed, then gradually open the outlet valve, and adjust to the required operating conditions. In the pipeline on the spit out of the valve closed, the pump can not work for more than 3 minutes.
4.The valve should be shut down, and then cut off the power supply.