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Maintenance and Modifications, cont'd
Removing and Installing a Fan Module
Removing a fan module
The two fan modules are identical and hot-swappable. If a fan fails, it should be
replaced at the earliest opportunity.
N The fans modules are hot-swappable. Either fan can be removed or installed
1.
Figure 7-4 — Fan replacement
2.
3.
Installing a fan module
1.
2.
3.
4.
5.
N If necessary, use a screwdriver to tighten the knurled knobs/captive screws.
7-6
FOX 4G Matrix Switchers • Maintenance and Modifications
without powering down the switcher.
Rotate the top and bottom knurled knobs to completely loosen the captive
screws (figure 7-4).
T
O U
B
IN
T
O U
T
O U
A
B
IN
T
O U
T
O U
A
B
IN
T
O U
T
O U
A
B
IN
T
O U
.
A X
A
A M
1 .2
H z
/6 0
5 0
V
4 0
0 -2
1 0
.
A X
A M
1 .2
H z
/6 0
5 0
V
4 0
0 -2
1 0
H
IT C
N C
E
S W
R E
F E
R E
Align with Plastic Guides
Gently pull on the screws to loosen the fan from the backplane.
Slide the fan out of the chassis.
Orient the fan to be installed so that the printing on the back of the panel is
right-side up.
Align the flanges on the fan with the top and bottom fan guides (figure 6-4).
Gently slide the fan into the enclosure until the fan meets resistance.
Gently seat the fan in the backplane.
Tighten the top and bottom knurled knobs/captive screws to lock the fan in
place.
IN
T
O U
H
IN
IN
O U
T
T
O U
G
IN
H
IN
T
O U
IN
O U
T
T
O U
F
IN
G
IN
T
H
O U
IN
T
O U
IN
O U
T
T
O U
E
F
IN
G
IN
T
H
O U
IN
IN
T
O U
T
O U
O U
T
E
F
L Y
D
IN
G
P P
IN
IN
S U
T
O U
E R
IN
O U
T
T
O U
O W
T
O U
T P
A N
T
E
N D
O U
C
F
D U
R E
IN
D
IN
IN
T
O U
IN
O U
T
T
O U
T
E
O U
C
IN
D
IN
IN
O U
T
T
O U
T
O U
C
IN
D
IN
O U
T
L Y
P P
S U
E R
T
O U
O W
C
Y P
IN
A R
IM
P R
A
, C
E IM
A H
A N
Knurled Knobs
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