Removing And Replacing A Fan Tray - Cisco ASR 9001 Hardware Installation Manual

Removing and Replacing a Fan Tray

Be sure that the fans have stopped running before removing the fan tray. The fans can take from 3 to 5
Caution
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.
Removing and Replacing a Fan Tray
The fan tray weighs approximately 2.6 pounds (1.2 kg). Use both hands when handling the fan tray.
Caution
To remove and replace a fan tray from the chassis:
Procedure
Step 1 Loosen the captive screw(s) that secure the fan tray.
Step 2 Use the handle on the fan tray front panel to pull the fan tray halfway out of the module bay (see the following
figure).
Step 3 Slide out the fan tray completely from the chassis while supporting it with your other hand.
Step 4 To reinstall the fan tray, lift the fan tray (with two hands) and slide it halfway into the module bay (see the
following figure).
Step 5 Slowly push the fan tray into the chassis until it mates with the backplane connector at the back of the module
bay.
Caution
Step 6
Tighten the captive screw(s) on the fan tray to a torque of 10 +/–1 in-lb to secure it to the chassis.
Step 7 Verify that the (green) OK status indicator on the front of the fan tray goes on. If the OK indicator does not
light, see
Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
112
To prevent damage to the connectors, do not use excessive force when inserting the fan tray into
the chassis.
Troubleshooting the Cooling Subsystem, on page 104
Replacing Cisco ASR 9001 Router Components
section.