C
HEETAH
S
ERIES
S
WITCHERS
–
C
HAPTER
12
81-9059-0570-0
Rev. C
Proprietary Information of
PESA
S
WITCHING
S
YSTEMS
,
I
NC
.
178
12.1.3.2
128x128 Chassis Fan Replacements
These switchers are equipped with three, surface-mounted fan assemblies (see Figure 90) that are
easily removed from the rear exterior of the chassis.
FIGURE 90: 128x128 Fan Assemblies and Associated Power Connections
Perform the following sequence to replace a faulty fan assembly:
1.
Disconnect the fan power cord (see Figure 90) from the chassis fan power receptacle.
2.
Remove the four fan-assembly retaining screws.
3.
Replace the fan and secure with the four, fan assembly with the retaining screws (torque
according to screw size).
When replacing fans during energized system conditions, be aware that the
new fan replacement will energize upon power reconnection.
4.
Reconnect the fan power cord to the chassis fan power receptacle.
Fan Assembly Power Cord
Connections
Summary of Contents for Cheetah 1024x256
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