1, before initiating, should be the pump cavity filling liquid, it is strictly prohibited to pump cavity liquid shortage and start.

2, before using, shall confirm the motor to correct before can use, half open impeller structure pump correct steering for: face to the motor tail, and looked, and motor wind leaf should be clockwise, closed impeller pump correct steering for: face to the motor tail, and looked, and motor wind leaf should counter-clockwise, test starting to inching advisable.

3, belt bearing bracket type pump before use should give bearing bracket into *0 lubricating oil, oil level should be held in oil mirror center line below, only visible oil above, it is strictly prohibited to lack of oil, cause damage bearing.

4, should pay attention to check the shaft sealing conditions, such as the discovery of leakage serious, should stop to repair, avoid liquid infiltration motor lumen damage motor.