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B811-00-880 Issue B
Inlet-screens
5.3.2
Fit or remove the inlet-screen
WARNING
Before you install the accessory, ensure that you switch off the pump and disconnect the power
supply as described below.
WARNING
If you remove the inlet-screen, there will be a risk of injury from exposed sharp edges in the pump.
CAUTION
Do not remove the inlet-screen unless you can be sure that debris cannot fall into the pump. Debris which falls
into the pump can seriously damage it.
1. Switch off the pump, isolate the pump controller from the electrical supply, and wait until the pump has stopped
rotating.
2. Use the following appropriate procedure according to the type of inlet-screen.
5.3.2.1
Integral mesh centring ring inlet-screen
Refer to Figure 9.

Locate the inlet-screen between the nEXT pump flange and the mating flange on your vacuum system
chamber.
Figure 9 - Integral mesh centring ring inlet-screen
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