1. This series self-priming pump, according to the work of the pump operating conditions, respectively, using high-quality calcium base grease and 10 oil lubrication, if the lubricating grease pump should be regularly to the bearing box to add the butter, the lubricating oil pump, if the oil is not enough, plus foot.
2. Check the pump shell liquid storage is higher than the impeller on the edge, if can from the mouth of the pump shell liquid directly to the pump body note put liquid storage, should not start running in a liquid storage is insufficient, otherwise can not work normally, and easy to damage the mechanical seal.
3. Check the pump rotating parts , whether there is a card bump phenomenon.
4. Check the pump body and the foot joint nut loosening.
5. Check the pump shaft and the motor shaft of the coaxial degree of peace.
6. Check the import pipeline is leaking, if there is a leak, must try to exclude.
7. Open the suction line of the valve, a little open (not fully open) export control valve.
