Cisco WS-C2950T-24 Hardware Installation Guide - Page 199
Replacing the Cisco 2921 or 2951 Fan Tray
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Chapter 5 Installing and Upgrading Internal Modules and FRUs Figure 5-34 Cisco 2911 Filter Replacement Replacing a Fan Tray or Air Filter Cisco 2900 Series 1 Filter 3 Bezel 1 2 3 2 Filter cover Step 3 Remove the screw from the air filter cover and remove the filter. Step 4 Install the replacement air filter, the air filter cover, and the bezel . Replacing the Cisco 2921 or 2951 Fan Tray To replace the fan tray, complete the following steps: Note If hot-swapping the fan tray, it is recommended to complete the operation within two minutes to ensure the router remains within operating temperature. See Figure 5-35. Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Read the "Safety Warnings" section on page 5-2 section and disconnect the power supply before you perform any module replacement. Pry open the fan tray screw covers on the four captive fan tray screws. Completely loosen the four captive fan tray screws. Pull the fan tray out. Insert the replacement fan tray and tighten the four captive screws. Snap the screw covers in place. OL-18712-03 Cisco 2900 Series and 3900 Series Hardware Installation Guide 5-47