KSB Etaprime L, Installation & Operating Manual

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7 Servicing/Maintenance
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Etaprime L
DANGER
Incorrectly serviced barrier fluid system
Explosion hazard!
Fire hazard!
Damage to the pump set!
Hot and/or toxic fluids escaping!
▷ Regularly service the barrier fluid system.
▷
Monitor the barrier fluid pressure.
CAUTION
Increased wear due to dry running
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.
(
ð
Section 6.2, Page 38)
While the pump is in operation, observe and check the following:
▪ The pump must run quietly and free from vibrations at all times.
▪
In case of oil lubrication, ensure the oil level is correct.
(
ð
Section 6.1.2, Page 32)
▪
Check the shaft seal.
(
ð
Section 6.1.6, Page 37)
▪ 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).
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).