Pump Spare Parts

Malfunction

Cause

Solutions

Pump does not absorb water

Leakage in the suction pipe or packing

lncorrect rotation or impeller damage

Suction pipe blockage

Block the leaking part

Check the steering direction and replace the new impeller

Remove the blockage

Excessive shaft power

The packing gland is too tight the packing is heated

Friction is produced in the pump bearing damage

The drive belt is too tight The pump flow is too large

The speed is too high, the specific gravity is high

The motor shaft and the pump shaft

are not centered or parallel

Loosen packing gland bolts Eliminate friction

Replace bearings Adjust belts

Adjust pump operating conditions Adjust speed

Adjust motor shaft and pump shaft

Bearing overheating

Too much or too little bearing grease Debris in the grease

Bearing damage

Add grease appropriately Renew grease

Replace bearings

Short bearing life

The motor shaft and pump shaft are not aligned or parallel

The shaft is bent. There is friction in the pump or the impeller is out of balance

Foreign matter has entered the bearing or the amount of grease is not appropriate

The  bearing  is  not  properly

assembled.

Adjust the motor shaft and pump shaft

Replace and clean the shaft Eliminate friction and replace the impeller

Replace or reassemble the bearing

Serious leakage at the packing

The packing is seriously worn

The sleeve is seriously worn The sealing water is not clean

Update packing Replace shaft sleeve

Replace clean sealing water

The pump vibrates and makes a lot of noise

Bearing damage lmpeller imbalance

Air inlet and blockage in the suction pipe

Uneven flow, pump empty

Replace bearings Replace impellers

Clear air intake and blockages lmprove pump feed conditions