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TM 9-4120-389-14
(1)
Remove four screws in motor junction box cover and remove cover.
(2)
Tag and disconnect motor leads 1, 2, and 3 from harness leads B2-3, B2-2, and B2-1
respectively.
(3)
Loosen two set screws on condenser fan hub.
(4)
Remove six screws, ten flat washers, and six lock nuts that secure condenser motor 5
and motor mount extension to the motor mount support.
(5)
Separate the fan from the motor.
(6)
Remove the motor from the unit.
d.
Installation
(1)
Place the motor and the motor mount extension on the motor support while
loosely installing the fan hub on the motor shaft.
(2)
Loosely install six lock nuts, ten flat washers, and six screws onto motor, motor mount
extension, and the motor support.
(3)
Reach into scroll and force the fan against the inlet cone to square the motor.
(4)
Secure hardware installed in step (2) above.
(5)
Retract the fan until the inboard surface of the fan is .125 inches (as
measured by a feeler gage) from the inboard surface of the bell.
CAUTION
One of the two set screws must engage the flat of the motor shaft.
(6)
Using allen wrench, secure the fan to the hub with two set screws.
(7)
pin the fan to verify correct alignment.
(8)
Loosen all hardware and repeat steps (5), (6) and (7) to correct any
misalignment.
(9)
Open junction box of replacement motor.
(10)
Bring leads B2-1, B2-2 and B2-3 through grommet into motor junction box.
(11)
See tags and connect leads. Remove tags.
(12)
Secure motor junction box cover with four screws.
Follow-on procedure: Install top cover (See para. 4-14).
Change 1 4-83
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