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End Suction Centrifugal
Fault
Excessive operating
vibration and noise.
Excessive water leakage
from the shaft seal.
MOTOR
Fault
Motor does not start
EBARA
PUMPS AMERICAS CORPORATION
www.pumpsebara.com
(t) 803.327.5005
Causes
- Fault in installation.
- Bearings damaged.
- Flow rate too high.
- Flow rate too low.
- Impeller is blocked.
- The direction of rotation is not
correct.
- Friction in the rotation areas. The
shaft is bent.
- Cavitation.
- Vibrations in the piping.
- Defective fitting of the mechanical
seal.
- The mechanical seal is damaged.
- Overpressure in delivery.
- The shaft is bent.
Causes
- The winding is broken or has
been cut.
- Stator short-circuited.
- Grounded.
- The bearings are blocked.
- The voltage is low.
- Loss of phases in the power
supply.
(f) 803.327.5097
GS Series
Measures to be taken
- Check installation.
- Replace the bearings.
- Reduce the aperture of the
delivery valve.
- Increase the aperture of the
delivery valve.
- Remove foreign bodies.
- Check and correct the
connection.
- Repair in specialist workshop.
- Seek expert advice.
- Reinforce the piping or fit an
inverter
- Fit it correctly.
- Replace the mechanical seal.
- Review the project.
- Repair in specialist workshop.
Measures to be taken
- Repair in specialist workshop.
- Repair in specialist workshop.
- Repair in specialist workshop.
- Repair the bearings.
- Change the nominal voltage.
- Check the power supply.
17
rev. 03/22
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