The hot-swappable fan removal and replacement procedures require that you have a
replacement fan on hand. In order to maintain system operations, you must be able to
remove the malfunctioning fan and quickly replace it with a functioning one to prevent
the system from overheating.
The Acme Packet 4600 air filter is located behind the front bezel and is a Field
Replaceable Unit (FRU).
Note:
An over temperature condition can stop packet processing.
If you do not have a replacement fan nearby, always shut down the system and
disconnect the power before removing the malfunctioning fan to replace at a later time.
When removing and replacing a fan, remember to first ground yourself using
appropriate ESD grounding equipment such as a wrist or heel strap.
To remove a fan:
1.
Press two fingers against the left end of the plastic fan bezel and pull it directly
toward you. The fan bezel comes off the chassis. Set the fan bezel aside. The
individual fans are now exposed.
2.
Using a small bladed screwdriver, unscrew the two captive screws at each upper
left and lower right corners of the individual fan you are replacing.
3.
Pull the individual fan you just unscrewed directly toward you, out of the chassis.
Move the fan to an ESD-safe location.
Chapter 6
Fan and Air Filter Maintenance
6-27