1. Shaft power is too large, the current increases. The main reasons are as follows:
1). Packing gland too tight or tight side, and the shaft friction, the filler fever.
2).There is friction within the pump.
3).Bearing damage
4) pump flow rate.
Elimination method: adjust the pressure is reduced, the maintenance of pumps, pump to eliminate friction; friction, bearing replacement, traffic regulation.
2. Pump suction is not Sheung shui. The main reasons are as follows:
1). Water suction pipe or filling in the air leakage.
2).Impeller damage
3). Inlet and outlet pipe blockage.
Elimination method: replace the packing, overhaul the impeller, remove the blockage.
3. Pump vibration and noise. The main reasons are as follows:
1).Bearing damage
2).Imbalance of the impeller
3). Intake of air or inlet plug.
Elimination method: replace the bearings, the impeller to find a balance, eliminate the air inside the pump, clean up the blockage.
