Edwards nRVi, Instruction Manual

Page: 87 / 100

9. Storage
CAUTION:
Observe the storage temperature limits. Storage below -30 °C will permanently
damage the pump seals.
Avoid long-term storage if possible. When long-term storage is necessary, the pump
should be set up and run for at least eight hours every six months.
Note:
If a new pump is to be stored in conditions of high humidity, remove the pump from its
cardboard packaging box; dispose of the box (refer to Disposal on page 84 ).
Use the following procedure to store the pump.
1. Shut down the pump as described in Shut down the pump on page 63 .
2. Disconnect the pump from the electrical supply.
3. Purge the vacuum system and the pump with dry nitrogen and disconnect the
pump from the vacuum system.
4. Replace the oil as described in Replace the oil on page 66 .
5. Place and secure protective covers over the inlet and outlet ports.
6. Store the pump in cool, dry conditions until required for use. When required,
prepare and install the pump as described in Installation on page 34 . If the pump
has been stored for more than a year, before installing the pump it must be
cleaned and overhauled as described in the instructions supplied with the clean
and overhaul kit.
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A65901880_D - Storage