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Page Title:
EVAPORATOR FAN, MOTOR, AND HOUSING.-Continued |
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 TM5-4120-384-14
4 - 3 2 . EVAPORATOR FAN, MOTOR, AND HOUSING.-Continued
(7) Wipe
or
vacuum
all
dust
or
dirt
from
fans,
motor,
and
housings.
(8)
Repair
of
fan
and
housing
is
by
replacement.
Test.
b.
(1) Use an ohmmeter or continuity tester to check continuity
Continuity should exist.
between pins A and B and between A and C.
(2) Check continuity from
pin
G
to
pins
A,
B,
C,
D,
and
E.
Continuity should not exist.
(3) Check continuity of thermal protectors between pins D
and
E.
If continuity does not exist allow motor to cool and then
If continuity still does not exist replace motor.
recheck.
If all the above inspections and tests are
satisfactory, but the motor will still not operate
properly, notify direct support maintenance, who may
desire to make further tests before it is removed.
Removal/Disassembly.
c.
(1)
Disconnect
power
at
power
source.
(2) Remove eight screws, lockwashers,
and
return
air
louver
assembly if not previously removed.
(3) Remove
screw,
self-locking
nut,
and
loop
clamp
securing
power cable.
(4)
Disconnect
connector
P3.
(5) Remove screw,
lockwasher,
and
loop
clamp
securing
sensing
bulb
to bell inlet.
(6)
Carefully
move
sensing
bulb
away
from
fan
housing.
(7)
Loosen
two
clamps
and
remove
condensate
lines
from
drip
pan.
(7.1) On Model F18H-1S remove four screws and lock washers
and move straps and capacitor C3 out of the way.
(8) Remove
two
screws
and
flat
washers
from
front
of
left
bell
inlet.
4-93
Change 2
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