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CiscoASR 9000 Series Aggregation Services Router Hardware Installation Guide
Chapter5 Replacing Cisco ASR 9000 Series Router Components
Removing and Replacing the Fan Trays
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 CiscoASR 9922 Router and Cisco ASR 9912 Router, remove the fan tray cover before removing
the fan trays for replacement.
Required Tools and Equipment
•6-inch long number 2 Phillips screwdriver (torque 10 in-lb)
Steps
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.
Note Due to air leakage, the chassis should not be operated with any of the fan trays completely missing.
Replace any missing fan tray within five minutes. Any fan tray replacement should be performed when
the chassis is back to room temperature.
Note If the accessory grill has been installed on the front of the CiscoASR 9010 Router, you must remove it
before you can remove the lower fan tray. You can remove the accessory grill by simply pulling on the
grill until it comes loose. See Installing Base Chassis Accessories on the Cisco ASR 9010 Router,
page 2-61, and Figure 2-56 for information about the accessory grill.
Note If the fan tray cover has been installed on the front of the CiscoASR 9922 Router or
Cisco ASR 9912 Router, you must remove it before you can remove the fan tray. Remove the fan tray
cover by simply pulling on the cover until it comes loose.
To remove a fan tray from the chassis (see Figure2-14, Figure 2-15, Figure 2-16, or Figure 2-17):
Step1 Use the 6-inch long number 2 Phillips screwdriver to a torque of 10+/–1 in-lb to loosen the captive
screw(s) that secure the fan tray.
Step2 Use the handle on the fan tray front panel to pull the fan tray halfway out of the module bay.
Step3 Slide out the fan tray completely from the chassis while supporting it with your other hand.