27
Maintenance / replacement
Y Version
Î
Turn off the vacuum pump, vent to atmospheric pressure and allow to cool, if
necessary.
Î
Remove the vacuum pump from the system, if necessary.
Î
Close the flange openings by using the original protective covers.
Î
Turn the turbopump over onto the closed high vacuum flange.
Î
Screw out the end cover on the bottom of the turbopump with special tool E. Pay
attention to O-ring.
Î
Using tweezers, lift out the lubricant reservoir.
Î
Using tweezers, pull out Porex rods (8 pieces).
Î
Remove impurities from the turbopump and the end cover with a clean, lint-free
cloth.
Do not use any cleaning fluids!
Î
Using tweezers, insert new Porex rods (8 pieces).
Î
Push the new operating fluid reservoir into the turbopump up to the O-ring.
Î
Screw in the end cover with O-ring. The operating fluid reservoir is brought into
the correct axial position with the end cover.
6
End cover
7
Lubricant reservoir
7a
Porex rod
7b
Felt washer (for service only)
48
O-ring
E
Special tool PV M40 569
E
6
7
6
48
7
7b
E
7a
7a
NOTE
Felt washer in the lubricant reservoir packet
The felt washer in the operating fluid reservoir is necessary only for special service
work and is replaced by Pfeiffer Vacuum Service.
