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Page Title:
FRESH AIR DAMPER AND ACTUATOR. - Continued |
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 TM5-4120-384-14
4 - 1 8 . FRESH AIR DAMPER AND ACTUATOR. - Continued
Clean/Inspect.
a.
(1)
Disconnect
power
at
power
source.
(2) Remove top covers (para 4-11),
supply
air
louver
13),
and return air louver (para 4-14).
(3)
Wipe
loose
dirt
from
controls
and
with
a
clean
cloth.
(4)
Check
push-pull
control
for
operation
by
turning
actuator
plate.
(5) Check that damper arm moves when actuator plate is
turned.
b.
Removal.
(1) Loosen
screw
on
mechanical
post
and
disconnect
push-pull
control.
(2) Remove two screws, lock washers,
and
flat
washers
and
lift
damper from air conditioner.
(3)
Remove
screw,
lock
washer,
nut,
spacer
and
loop
clamp.
(4) Loosen screw
in
actuator
plate
blind
nut
to
free
end
of
push-pull control.
(5) Remove outer nuts from both
ends
of
push-pull
control
and
remove push-pull control from unit.
(6)
Remove
screw,
nut,
two
spring
washers
and
actuator
plate.
Inspect
all
parts
and
replace
if
damaged.
Replace.
c.
d.
Installation.
(1)
Install
actuator
plate
with
screw,
two
spring
washers,
and
nut.
(2)
Install
damper
in
opening
of
housing.
(3) Secure damper cover
to
housing
with
two
screws
lock
washers and flat washers.
4-54
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