EBARA GMB GS Gebrauchs- Und Wartungsanleitung Seite 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.