Pfeiffer Vacuum HiPace 300 P, Operating Instructions Manual

Page: 47 / 64

8 Decommissioning
8.1 Shutting down for longer periods
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
► Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
► Decontaminate affected parts before carrying out maintenance work.
► Wear protective equipment.
Procedure for a longer downtime of the turbopump (> 1 year)
1. Remove the turbopump from the vacuum system if necessary.
2. Change the operating fluid reservoir of the turbopump if necessary.
3. Close the high vacuum flange of the turbopump.
4. Evacuate the turbopump via the fore-vacuum connection.
5. Vent the turbopump via the venting connection with dry, oil-free air or inert gas.
6. Seal all flange openings with the original protective caps.
7. Store the turbopump upright with the high vacuum flange upwards.
8. Store the turbopump indoors only, within the specified temperature range.
9. In rooms with humid or aggressive atmospheres: Hermetically seal the turbopump 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.
Procedures for recommissioning the turbopump
1. Check the turbopump for contamination and moisture.
2. Clean the turbopump externally with a lint-free cloth and a little isopropanol.
3. If necessary, arrange for Pfeiffer Vacuum Service to completely clean the turbopump.
4. Observe the total running time of the turbopump and if necessary, arrange for Pfeiffer Vac-
uum Service to replace the bearing.
5. Change the operating fluid reservoir of the turbopump.
6. Install the turbopump according to these operating instructions
(see chapter “Installa-
tion”, page 21) .
7. Recommission the turbopump according to these instructions (see chapter “Commission-
ing”, page 35) .
Decommissioning
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