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
.
181
•
Cheetah 256x448 Offset Fan Replacement Procedure
To replace an offset fan assembly, perform the following sequence:
1.
Remove the protective chassis fan grill assembly by removing the two screws in each
upper corner that secure the guard to the chassis and then, lift the assembly upward
from the retaining slots and away from the chassis.
2.
Unplug the fan power cord from the power connector that is secured to the stationary
fan mounting plate.
3.
Completely loosen the nylon thumbscrew that secures the fan assembly to the mounting
plate.
4.
Lift and slide the assembly away from the mounting slots.
5.
Remove the fan mounting hardware, remove the old assembly, and position the new fan
assembly in the bracket. Secure the new fan assembly to the fan bracket with the
hardware.
6.
Return the new fan assembly to the mounting plate, slide it into the mounting slots until
seated, and secure the fan assembly to the mounting plate with the nylon thumbscrew.
When replacing fans during energized system conditions, be aware that the
new fan replacement will energize upon power reconnection.
7.
Reconnect the fan power cord to the power connector.
8.
Reinstall the protective chassis fan grill assembly by aligning the assembly in the
retaining slots and securing with the screws.
Summary of Contents for Cheetah 1024x256
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