Cisco Systems Boat Cisco Systems Boat User Manual

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Cisco Catalyst 4900M Switch Installation Guide
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Chapte r 3 Installing the Switch
Removing and Replacing the Fan Assembly
Installing the Fan Assembly
To install the new fan assembly, perform the following steps:
Step 1 Hold the fan assembly with the captive screws on the left.
Step 2 Place the fan assembly into the fan assembly bay so it rests on the chassis, and then lift the fan assembly
up slightly, aligning the to p and bottom guides.
Step 3 Slide the fan assembly into the chassis until the two captive installation screws make contact with the
chassis.
Step 4 Using a screwdriver, tighten the two captive installation screws by turning them clockwise.
Verifying the Installation
Note To check the operation of the fans, you need to power up the chassis.
To verify that the new fan assembly was installed correctly, perform the following steps:
Step 1 Listen for the fans; you should immediately hear them operating. If you do not hear them, ensure that
the fan assembly is inserted completely in the chassis and that the faceplate is flush with the switch back
panel.
Step 2 The fan tray LED should be lit green.
Step 3 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 TAC
for assistance.

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