© Edwards Limited 2008. All rights reserved.
Page 31
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Storage and disposal
B722-20-880 Issue D
6
Storage and disposal
6.1
Storage
Use the following procedure to store the pump.
1. Place protective covers over the inlet, outlet, interstage (EXT70Hi 24 V and EXT255Hi 24 V only), 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
.
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.
Take appropriate action to avoid inhalation of any particulates which may be present in the pump.
Do not incinerate the pump. The pump contains phenolic and fluorosilicone materials which can decompose to very
dangerous substances when heated to high temperatures.
WARNING
In the unlikely event that the rotor fails, dust may be generated from the carbon fibre reinforced
components in the pump. If the rotor has failed:
z
Wear the appropriate personal protective equipment (gloves, a dust-proof mask which covers
the nose and mouth, an apron or overalls, and safety glasses or goggles) when you handle the
pump.
z
Ensure that the pump inlet, outlet, and vent-, interstage- and purge-ports are all blanked off/
sealed before you dispose of the EXT pump.
