Cisco Systems 3725 Series Network Router User Manual


 
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Installing and Upgrading Fans in Cisco 3725 Series Routers
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Replacing the Cisco 3725 System Fan
Follow these steps to install the system fan:
Step 1 Lower fan B down and onto the chassis floor. Slide the fan to the left until it fits snugly in the fan
receptacle. (See Figure 9.)
Caution Make sure the arrow on top of the fan, indicating fan installation direction (see Figure 8), is pointing out
from the chassis.
Figure 9 Installing Fan B in the Cisco 3725 Router
Step 2
Lower fan A, at an angle, down and onto the chassis floor. (See Figure 10.)
Caution Make sure the arrow on top of the fan, indicating fan installation direction (see Figure 8), is pointing out
from the chassis.
1 Location of the fan B wire
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