Dell PowerEdge 6600 - Manual (Page 50)

Removing a Cooling Fan
1. Loosen the thumbscrew that secures the back cover to the chassis (see " Removing the Back Cover " in "Troubleshooting Your System").
2. Slide the back cover backward to the service position.
The back cover service position allows you to remove and replace fans without removing the back cover.
3. Locate the faulty fan.
4. Rotate the handle to the upright position and lift the fan straight up to clear the fan assembly (see Figure 6 -2 ).
Figure 6-2. Removing and Replacing a Cooling Fan
Replacing a Cooling Fan
NOTE: The procedure for removing each individual fan is the same.
NOTICE: The cooling fans are hot-pluggable. To maintain proper cooling while the system is on, replace only one fan at a time.
NOTE: The procedure for replacing each individual fan is the same.
NOTICE: Ensure that the memory riser card handles and the peripheral riser card handles are in the closed position before installing a cooling fan.