TM9-4120-401-14
CONDENSER FAN, MOTOR, AND HOUSING.
d. Replace
c. Test
This task covers:
a. Inspect
b. Service
INITIAL SETUP
Tools
Equipment Condition
Refrigeration Unit Service Tool Kit
Appendix B, item 1
Materials/Parts
Use disconnect switch (NOT POWER
CABLE) to disconnect power to unit.
Motor
Damage to cable connector pins will
result if cable is used.
Scroll
Disconnect power at power supply.
Bell Inlet
Remove electromagnetic interference filter (FL1)
Fan Impeller
Personnel Required
Lock Washer (3)
Tiedown Straps (3)
Two
a. lnspect.
(1) Check that all fan housing parts are in place and in good condition.
(2) Inspect fan impeller (1) for damaged or bent blades and free rotation.
(3) Inspect the motor (2) for signs of overheating.
(4) Check all mounting hardware for tightness.
(5) Tag and disconnect motor (2) connector plugs (3) and (4). Check for loose, damaged, or missing pins.
(6) Connect motor (2) connector plugs (3) and (4) using tags and wiring diagram (figure 4-6).
b. S e r v i c e .
Wipe all dust or dirt from fan impeller (1), motor (2), and fan housing assembly.
c. Test.
NOTE
The motor is equipped with an internal thermal safety. If the motor is hot, it must
be allowed to cool before testing.
(1) Tag and disconnect motor (2) connector plugs (3) and (4).
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