DANGER
Incorrectly serviced shaft seal
Explosion hazard!
Fire hazard!
Leakage of hot, toxic fluids!
Damage to the pump set!
▷
Regularly service the shaft seal.
DANGER
Excessive temperatures as a result of bearings running hot or defective bearing seals
Explosion hazard!
Fire hazard!
Damage to the pump set!
▷
Regularly check the lubricant level.
▷
Regularly check the rolling element bearings for running noises.
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. (
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. (
▪
▪
Check the static seals for leakages.
▪
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 the 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).
7 Servicing/Maintenance
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