Chapter 3 Installing the Switch
Removing and Replacing the Fan Assembly
Caution Never operate the system for an extended period if the fan assembly is removed or if it is not functioning properly. An
Follow these steps to remove the existing 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 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 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.
| Cisco Catalyst 4900M Switch Installation Guide |
