Edwards EXT250 Series, Instruction Manual, Page: 35 / 42

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Storage and Disposal
B722-01-880 Issue K
6 Storage and Disposal
6.1 Storage
Use the following procedure to store the pump:
1. Place protective covers over the inlet, outlet, purge and vent ports.
2. Place the pump in its packing materials. For fastest pump-down when the pump is put back into service, seal the
pump inside a plastic bag together with a suitable desiccant.
3. Store the pump in cool, dry conditions until required for use. When required, prepare and install the pump as
described in Section 3 .
4. Keep the pump upright at all times to prevent the drainage of oil from the bearing reservoir.
5. 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.
6.2 Disposal
Dispose of the EXT Turbomolecular Pump and any components and accessories safely in accordance with all local and
national safety and environmental requirements.
Take particular care with any components which have been contaminated with dangerous process substances.