DANGER
Excessive temperatures due to dry running
Explosion hazard!
Fire hazard!
Damage to the pump set!
▷ Never operate the pump set without liquid fill.
▷ Never close the shut-off element in the suction line and/or supply line during
pump operation.
CAUTION
Impermissibly high temperature of fluid handled
Damage to the pump!
▷ Prolonged operation against a closed shut-off element is not permitted
(heating up of the fluid).
▷ Observe the temperature limits in the data sheet and in the section on
operating limits. (⇨ Section 6.2 Page 43)
CAUTION
Corrosion caused by stagnant aggressive fluids, e.g. fluids containing chloride
Damage to the pump!
▷ Every 24 hours operate the pump for a minimum of 30 minutes or flush it with
clean, pure water.
11)
While the pump is in operation, observe and check the following:
▪ The pump must run quietly and free from vibrations at all times.
▪ Check the shaft seal. (⇨ Section 6.1.4 Page 42)
▪ Check the static sealing elements for leakage.
▪ Check the rolling element bearings for running noises.
Vibrations, noise and an increase in current input occurring during unchanged
operating conditions indicate wear.
▪ Monitor the correct functioning of any auxiliary connections.
▪ Monitor the stand-by pump.
To make sure that stand-by pumps are ready for operation, start them up once a
week.
▪ Monitor the bearing temperature.
The bearing temperature must not exceed 90 °C (measured on the outside of the
bearing bracket).
▪ Check the flexible elements of the coupling and replace them, if required.
▪ Check any pressure gauges.
▪ Check the drive as described in the manufacturer's product literature.
▪ Check that the fitted coupling guard does not touch the coupling.
▪ Make sure that the earth connection has been fitted and marked.
CAUTION
Operation outside the permissible bearing temperature
Damage to the pump!
▷ The bearing temperature of the pump (set) must never exceed 90 °C (measured
on the outside of the bearing bracket).
11)
E.g. drinking water or demineralised water
7 Servicing/Maintenance
Omega / Omega V
49 of 94
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