14
Installation
5.6 Filling up the operating fluid
The type and amount of operating fluid should be visible on the pump's rating
plate for every rotary vane pump.
The delivery consignment for the
standard pump
contains sufficient operating
fluid for one filling. The use of other operating fluids requires prior authorisation
from Pfeiffer Vacuum.
Permissible operating fluid
• P3 (standard operating fluid)
• Operating fluid for special applications on request
Filling up the opera-
ting fluid
Unscrew operating fluid filler screw 172.
Fill up operating fluid.
– Correct filling level during operations: Within the markings at the sightglass
frame.
Fig. 9: Filling up the operating fluid
Screw in operating fluid filler screw 172.
Check operating fluid level only when the pump is warm and running; close
– vacuum flange and gas ballast valve to do so,
– Check operating fluid daily in non-stop operation, otherwise whenever the
pump is switched on. Refilling is possible when the pump is in final vacuum
operation.
NOTE
Guarantees relating to attainment of final pressures and trouble free functioning
of the pump apply only providing a permissible operating fluid is used.
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