Nortel 1000E Maintenance Manual page 123

Figure 14 shows the Call Server power module air filter (P06094950). It
consists of one aluminium frame and foam insert. The air filter foam kit
(N0003712) contains ten replacement foam inserts.
Figure 14
CS 1000E power supply air filter
Procedure 15 describes how to clean and replace the air filter.
Procedure 11
Cleaning and replacing the power supply air filter
Note:
The power supply can remain powered on during this procedure.
1 To remove the power supply air filter, gently unsnap the filter from the
front of the power supply module. If the aluminium frame is damaged,
then replace the filter.
2 To remove the air filter foam, unsnap the frame that contains the filter
foam insert and gently pull the foam insert loose from the frame. If the
foam is damaged, then replace the foam insert.
3 To clean the foam insert, rinse it with clean water under a tap or carefully
vacuum it. After rinsing, allow the foam to dry thoroughly before
reinstalling in the frame.
Replacing equipment
Communication Server 1000E
Page 123 of 162
Maintenance