8 Decommissioning
8.1 Shut down for longer periods
Procedure
1. Remove the pumping station from the vacuum system if necessary.
2. Change the operating fluid reservoir of the turbopump if necessary.
3. Seal all flange openings with the original protective caps.
4. Store the pumping station indoors only, at temperatures between -10 °C and +40 °C.
5. In rooms with humid or aggressive atmospheres: Hermetically seal the pumping station together
with a drying agent in a plastic bag.
8.2 Recommissioning
NOTICE
Risk of damage to the turbopump as a result of operating fluid aging after recommissioning
The shelf life of the operating fluid of the turbopump is limited. Aging of the operating fluid may lead
to the failure of the ball bearing and cause damage to the turbopump.
► Pay attention to when the operating fluid must be changed:
● after maximum 2 years without operation,
● after maximum 4 years combined operation and downtimes.
► Observe the maintenance instructions and inform Pfeiffer Vacuum Service.
NOTICE
Risk of damage to vacuum pump as a result of operating fluid aging
The operating fluid usability is limited (max. 2 years). Prior to recommissioning, following a shutdown
of
2 years or more
, carry out the following work.
► Change the operating fluid.
► Change the radial shaft seal rings and other elastomer parts if required.
► Observe the maintenance instructions – consult Pfeiffer Vacuum if necessary.
Procedure for recommissioning the pumping station
1. Check the pumping station for impurities and moisture.
2. Clean the turbopump station exterior with a lint-free cloth and a little isopropanol.
3. If necessary, arrange for Pfeiffer Vacuum Service to fully clean the pumping station.
4. If necessary, arrange for Pfeiffer Vacuum Service to fully clean the pumping station components.
5. Install the pumping station according to these instructions
(see chapter “Installation”, page 23)
6. Recommission the pumping station according to these instructions .
Decommissioning
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