Pump did not intake water
Reason:
1. turning wrong or impeller damage
2.suction pipe plug
Solution:
1.checking turning , and renewal impeller
2.exclude plug
The shaft power is too big
Reason:
1. friction occurred in pump
2. damage the bearing
3. belt is tie for driving device
4. pumping capacity is too big
5. rotate speed is too high , medium specific gravity is great
6. motor shaft is not parallel to motor shaft , or they are misalignment .
Solution:
1.dispel the friction
2.change bearing
3.adjust belt
4.adjust the pump’s operation condition
5.adjust rotate speed
6.adjust motor shaft and pump shaft
Bearing is overheating
Reason:
1.too much or too little grease for bearing
2.grease in debris
3.bearing damage
Solution:
1.add appropriate grease
2.renewal grease
3.renewal bearings
Bearing life is short
Reasons:
1.Motor shaft and pump shaft are misalignment , or they are not parallel
2.bearing is bend .
3.friction within pump or impeller lost balance
4.foreign matter went into bearing or the quantity of grease is not reasonable
Solution:
1.adjust motor shaft and pump shaft
2.renewal shaft
3.Eliminate friction , renewal impeller
4.cleaning bearings
5.renewal bearing or assemble bearing again .
Pump vibration , big noise
Reason:
1.bearing damage
2.impeller is imbalance
3.the flow is not uniform and the pump is empty
Solution:
1.renewal bearing
2.renewal impeller
3.improve the pump feed