Network Router User Manual
7-17
Cisco MGC Software Release 7 Operations, Maintenance, and Troubleshooting Guide
OL-0542-06
Chapter 7 Maintaining the Cisco Catalyst 5500 Multiswitch Router
Replacing Hardware Components
Checking the Installation
Perform the following steps to verify that the new fan assembly is installed correctly:
Step 1 Listen for the fans; you should immediately hear them operating. If you do not hear them, ensure that 
the fan assembly is completely inserted in the chassis and that the faceplate is flush with the switch back 
panel.
Step 2 If after several attempts the fans do not operate, or if you experience trouble with the installation (for 
instance, if the captive installation screws do not align with the chassis holes), contact the Cisco 
Technical Assistance Center (TAC) for assistance. Refer to the “Obtaining Technical Assistance” section 
on page xviii for information on contacting the Cisco TAC.










