Never use force when dismantling and reassembling the pump set.
7.2 Maintenance/inspection
7.2.1 Supervision of operation
DANGER
Risk of potentially explosive atmosphere inside the pump
Explosion hazard!
▷ The pump internals in contact with the fluid to be handled, including the seal
chamber and auxiliary systems must be filled with the fluid to be handled at all
times.
▷ Provide sufficient inlet pressure.
▷ Provide an appropriate monitoring system.
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.
▷ Provide monitoring of the bearing temperature.
▷ Do not exceed the bearing temperature limits. (⇨ Section 5.10 Page 35)
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 6.4 Page 44)
NOTE
After commissioning, increased temperatures may occur at grease-lubricated rolling
element bearings due to the running-in process. The final bearing temperature is only
reached after a certain period of operation (up to 48 hours depending on the conditions).
While the pump is in operation, observe and check the following:
7 Servicing/Maintenance
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