Cisco 3825 Series

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Installing and Upgrading Fans in the Cisco 3825 Series Routers
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Upgrading the Cisco 3825 Fan Unit
Step 4 Remove the two screws that hold the fan unit to the front of the chassis. (See Figure 6.)
Figure 6 Removing Fan Mounting Screws from the Front of the Chassis
Step 5
Lift the fan unit out of the chassis.
Installing the Fan Unit
Follow these steps to install the fan unit.
Note Before you begin, read the safety warnings as described in the “Safety Warnings and Guidelines” section
on page 2.
1 Fan mounting screws on the front of the
chassis
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