Cisco Systems 9000

5-10

CiscoASR 9000 Series Aggregation Services Router Hardware Installation Guide

Chapter5 Replacing Cisco ASR 9000 Series Router Components

Replacing the Chassis Air Filter

Figure5-8 Removing the CiscoASR 9922 Router Chassis Side Air Filter —Versions 1 and 2

Step6 Visually check the condition of the air filter and/or its foam media to determine whether to install a new

replacement filter or foam media.

Step7 Install the new air filter.

•For the Cisco ASR 9010 Router, slide the new air filter into the air filter door (honeycomb side up).

•For the CiscoASR 9006 Router and Cisco ASR 9904 Router, tighten the thumb screw to secure the

filter to the chassis.

•For the CiscoASR 9922 Router (version 1 air filter) and Cisco ASR 9912 Router, tighten the thumb

screws that attach the inner frame to the air filter and re-attach the three air filters to the front of the

chassis. For the Cisco ASR 9922 Router (version 2 air filter) tighten the thumb screws that attach

the inner frame to the left and right air filters only. Attach the new center air filter, with arrows

pointing upwards, and re-attach both side filters to the front of the chassis.

Note For the version 2 air filter on the CiscoASR 9922Router, the center does not have thumb screws because

it does not have replaceable foam media.

Caution Align and seat the door carefully to avoid damaging the EMI-preventive gaskets on the door. The air

filter door must be closed and secured at all times to maintain correct EMI performance.

1Loosen thumb screws 3Remove foam filter medi a

2Rotate and lower inner frame

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