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Fan Tray Assembly Removal and Replacement 45
Fan Tray Assembly Removal and Replacement
The CoreBuilder 9400 is cooled by the fan tray
assembly, which contains two 12-volt DC fans. The
fans are thermally controlled, which means that they
run at slower speeds when the system is operating at
temperatures of less than 30
°
C and at full speed
when the system temperature is above that.
You need no tools to remove the fan tray. You can
remove and replace the fan tray with the power on.
To remove and replace the fan tray assembly, follow
these steps:
1 Facing the front of the system, squeeze the fan tray
latching tab.
2 Slide the fan tray out of the system.
3 Slide the new fan tray into the system chassis.
4 To seat the fan tray, ensure that the connectors are
aligned, and then push the fan tray inward until the
connectors engage and the fan tray latches. You feel
a slight resistance as the connectors engage.
CAUTION:
If the resistance is too great, the
connectors may not be aligned. Forcing the fan tray
inward could damage the connectors. If necessary,
remove and reinsert the fan tray, ensuring that the
connectors are properly aligned.
Figure 14
Removing and Replacing the Fan Trays
R
S TAT
PCKT
S TAT
PCKT
3C94024
1000BASE SX
2
TX RX
1000BASE SX
1000BASE SX
1000BASE SX
1
TX RX
3
TX RX
5
TX RX
4
TX RX
6
TX RX
8
TX RX
7
TX RX
9
TX RX
11
TX RX
10
TX RX
12
TX RX
Fan tray
Fan tray
latching tab