Procedure
Step 1
To open the router cover, use the special screw driver to loosen all twelve captive screws in the order shown
in the above figure. Ensure that the screws are released from the screw thread on the router and remain on the
router cover as shown in the following figure.
Do not forcibly remove the captive screws out of the router cover. You may need to remove the
captive screws completely only when replacing a router cover.
Note
Figure 28: Router Cover, Showing Captive Screw
Captive screw loosened from the screw thread on the router
1
Step 2
After all twelve screws are loose, remove the cover. The router door is held by a cable that is affixed to the
cable bay inside the chassis as shown in the following figure.
Figure 29: View of Wall-Mounted Router With Open Cover
Cisco ASR 901S Series Aggregation Services Router Hardware Installation Guide
50
OL-29732-01
Installing the Router
Opening the Router Cover