Cisco NCS 2006 Hardware Installation Manual page 474

NTP-L20 Replacing the Air Filter of the NCS 2006 Shelf Assembly
Note
Figure 244: Extracting the Air Filter
Step 7 Push the retention feature to the right side (see the figure below).
Figure 245: Replacing the Air Filter
Step 8 Close the front door. If you removed the door, complete the
2006 Shelf , on page
Stop. You have completed this procedure.
Cisco NCS 2000 Series Hardware Installation Guide
446
The air filter must be inserted with the grid facing the shelf assembly as shown in the figure below.
247.
Maintaining the NCS 2002, NCS 2006, and NCS 2015 Shelves
NTP-L4 Installing the Standard Door of the NCS