EBARA GS Serie Manuel D'instructions page 22

Excessive water
EN
leakage from the shaft
seal.
MOTOR
Fault
It does not work
Abnormal noise or
excessive vibrations.
Motor overheating.
Appearance of smoke
and/or bad smell.
22
- 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.
- Earthed.
- The bearings are blocked.
- The voltage is low.
- Lack of phases in the
power supply.
- Operation without a phase. - Check the power supply.
- Power surges.
- Friction between the rotor
and stator.
- Obstructions in the cooling
fan.
- Fault in installing the motor. - Connect the pump
- Poor Star/Delta
commutation.
- High power surges.
- Fan is blocked.
- Wrong voltage.
Instruction and Maintenance Manual
- 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.
- Correct the power surges.
- Align and/or replace the
bearing.
- Remove foreign bodies.
correctly.
- Correct the cabling.
- Correct the power surges.
- Release the fan.
- Change the motor for one
with the appropriate voltage.