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Pipeline sewage pump troubleshooting method
phenomenon
      Pipeline sewage pump causes
      Pipeline sewage pump removal method
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Pipeline sewage pump does not start up and run
The voltage is too low
Increase the voltage or equal voltage before use
Feeder has open circuit
View blown fuses and wiring and replace them
Impeller stuck in debris
Exclude debris
No axial clearance between two coupling halves and seizing
Adjust the axial clearance between the two coupling halves to 0.5 mm
Impeller and volute close
Reassemble, separate impeller and volute
Nuts fall off and damage to the hub makes the impeller slippery
Install flat keys and nuts
Coupling flat key is damaged
Change flat keys
Insufficiency of piping sewage pump flow
Motor speed is lower than rated speed
Increase motor speed
Inhalation is blocked, mud pit ditch is deep, pumping can not get mud dung
Exclude the suction stopper, move the pump so that the volute is completely buried in the muddy water
Mud blocked
Check the pipe and remove the stopper
The medium is too thick or the supply is not good
Dilute medium and increase supply
Large leak
Check the cause of the leak and replace the part that caused the leak
Impeller broke
Exchange impeller
High lift, transport too far
Reduce head and shorten conveying distance
Reverse direction of rotation
Change the direction of rotation of the motor
The impeller is surrounded by debris
Exclude debris
Pipeline sewage pump noise and vibration
æ±² send liquid temperature is too high
Lower the liquid temperature
There are hard objects in the working fluid
Control the amount of debris into the pump, encryption filter
Suction mouth air infiltration
Deep volute
Inclusions in the volute
Exclude debris
Nuts loose
Tighten the nut
Impeller and volute friction
Check the pump assembly and adjust
The bearing is damaged or less oil
Replace bearings or refuel
The pump shaft is different from the motor and the shaft is bent
Adjust concentric, correct axis
Pipeline sewage pump overload
Concentricity changes, bearing damage, shaft deformation
Corrected parts, exchange bearings
Inappropriate assembly of pumps, difficult rotation, foreign objects stuck
Reassemble and remove foreign objects
Reverse direction of rotation
Transform motor rotation
Low head, excessive traffic
Try to avoid prolonged use