Removing And Replacing The Fan Trays; Prerequisites; Required Tools And Equipment; Removing A Fan Tray - Cisco ASR 9000 Series Installation Manual

Removing and Replacing the Fan Trays

• For the Cisco ASR 9006 Router and Cisco ASR 9904 Router, tighten the thumb screw to secure the filter
• For the Cisco ASR 9922 Router (version 1 air filter) and Cisco ASR 9912 Router, tighten the thumb
Note
Caution
Removing and Replacing the Fan Trays

Prerequisites

• For the Cisco ASR 9010 Router remove the accessory grill before removing and replacing the fan trays.
• For the Cisco ASR 9906 Router, Cisco ASR 9922 Router and Cisco ASR 9912 Router, remove the fan

Required Tools and Equipment

• 6-inch long number 2 Phillips screwdriver (torque 10 in-lb)

Removing a Fan Tray

Follow these steps to remove and replace the fan trays:
Caution Never unplug all the fan trays at the same time.
Caution Be sure that the fans have stopped running before removing the fan tray. The fans can take from 3 to 5 seconds
to completely stop running after disengaging the fan tray latch. Handling the fan tray before the fans have
stopped running could cause fingertip injury.
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
230
to the chassis.
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.
For the version 2 air filter on the Cisco ASR 9922 Router, the center does not have thumb screws
because it does not have replaceable foam media.
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.
tray cover before removing the fan trays for replacement.
Replacing Cisco ASR 9000 Series Router Components