Cisco 2851 - Integrated Services Router User Manual page 23

Figure 7
Figure 8
Figure 8
1 Lift the fan upward
Step 5 Place the fan in an antistatic bag to protect it from ESD damage.
78-17850-01
Using a Flat-Blade Screwdriver for Added Leverage When Removing the Fan
shows the fan being tilted away from the chassis to remove it.
Lifting and Tilting the Fan to Remove
2 2
1
2 Tilt the fan toward chassis
Installing and Upgrading Fans in Cisco 2811 Series Routers
Installing and Removing the Fans
7