Nortel BCM200 Installation And Maintenance Manual page 332

332 Chapter 25 Replacing or installing a cooling fan
Figure 185 Disconnect the BCM200 fan cable from the I/O card
6
Remove the fan at the rear of the main unit (see
a
Remove the snap rivets that hold the fan to the main unit. The snap rivet has two parts: a
center pin and a collar. Gently separate the plastic rivet pin with your fingernails from the
center of the rivet collar. Remove the rivet pin and the collar from the chassis. Place the
rivet pin and collar in a safe location.
b Pull the fan away from the main unit (from the interior).
c
Place the fan in a safe location.
Figure 186 Remove the snap rivets from the BCM200 main unit
Remove the rivet pin from
1
the rivet collar.
Remove the rivet collar from
2
the fan access panel hole.
N0060612 N0060612
Main Card
Fan exhaust
Main unit
Rivet pin
Disconnect from
single fan (fan #1)
I/O Card
Figure 186):
Rivet collar