© Edwards Limited 2008. All rights reserved.
Page 9
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Installation
B777-00-880 Issue E
3
Installation
3.1
Unpack and inspect
CAUTION
Do not damage the envelope surface of the HF variant as this may cause corrosion and a reduction in
performance. In this event the pump must be returned to your nearest service centre.
Take care when you unpack the pump to avoid excessive shocks which could damage the bearings and reduce the life
of the pump. The pump is supplied with the inlet and the outlet sealed to prevent entry of dust and vapour. Do not
remove these seals until you are ready to install the pump on your vacuum system.
Remove all the outer cardboard packaging and check the pump. If the pump is damaged, notify your supplier and
carrier in writing within three days; state the item number of the pump together with your order number and your
supplier's invoice number. Retain all the packing materials for inspection. Do not use the pump if it is damaged.
Check that your package contains the items listed in
. If any of these items is missing, notify your supplier in
writing within three days.
If the pump is not to be used immediately, store the pump in suitable conditions as described in
.
It is advised that you retain all packing materials for use should you return the pump for service.
WARNING
The EXT555H DN160CF pump variant weighs 21 kg. Take care when handling the pump and ensure
that you grip it firmly by the inlet flange when manoeuvring it.
Table 6 - List of items supplied
Qty
Description
1
EXT555H turbomolecular pump
1
Inlet screen (fitted)
1
Inlet seal (trapped 'O' ring, co-seal or copper compression gasket)
1
Inlet strainer (EXT555Hi only, fitted in the interstage port)
