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ManualsBrandsNortel Networks ManualsNetwork HardwareNortel Networks Network Hardware 400 4.0
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Chapter 25 Replacing or installing a cooling fan 325
BCM200/400 4.0 Installation and Maintenance Guide
Figure 177 Remove the BCM400 fan access panel
5 Disconnect the I/O card fan cables (see Figure 178). For the BCM400 RFO configuration,
disconnect both fan cables from the I/O card.
Figure 178 Disconnect the fan cable from the I/O card
6 Remove the snap rivets that hold the fan to the fan access panel. 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 collar from the fan access panel. Place the
rivet pin and collar in a safe location. See Figure 179 on page 326.
Remove fan access
panel screws
1
Remove fan access
panel
2
I/O Card
Main Card
Disconnect from
single fan (fan #1)
Disconnect from
redundant fan (fan #2)