Cisco Systems WSC4500XF16SFP User Manual download pdf (Page 139)

4-23

Catalyst 4500 Series Switches Installation Guide

78-14409-08

Chapter 4 Removing and Replacing FRUs

Removing and Replacing the Chassis Fan Assembly

Removing the Fan Assembly

Warning

When removing the fan tray, keep your hands and fingers away from the

spinning fan blades. Let the fan blades completely stop before you remove the

fan tray.

Statement 258

Caution Never operate the system for an extended period if the fan assembly is removed

or if it is not functioning properly. An over-temperature condition can cause

severe equipment damage.

Follow these steps to remove the existing chassis fan assembly:

Step 1 Loosen the two captive installation screws on the fan assembly by turning them

counterclockwise.

Step 2 Grasp the fan assembly with both hands and pull it outward; gently move it side

to side if necessary to unseat it from the backplane. Slide it out of the chassis and

place it in a safe place.

Installing the Fan Assembly

Follow these steps to install the new fan assembly:

Step 1 Hold the fan assembly with the fans facing to the right.

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 top 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.

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Cisco Systems WSC4500XF16SFP User Manual Page 139