TM 9-4120-378-14
4.36 CONDENSER FAN, HOUSING AND MOTOR. -continmd
Remarks
Location/Item
Action
See paragraph 5.8.
e.
If end play is excessive (i.e., can be felt on manu-
Test
al push-pull), the thrust bearings and shims are
Continued
worn beyond limits and should be replaced.
See Wiring Diagram (Appen-
Use an ohmmeter or continuity tester to check
f.
continuity between pins of the electrical connec-
tor (P5).
Check to be sure that continuity exists between
Replace motor if either open
g.
or short circuits exist.
connector pins A and B and between E and D.
This means that open circuits do not exist.
Replace motor if either open
Then check from pin G to pins A, B, E, and D.
h.
or short circuits exist.
No continuity should exist, which indicates that
there is not an internal short circuit.
Assembly
Secure motor (14) to mounting plate (8) using
a.
four screws (37), four Iockwashers (38), eight flat
washers (39) and four bushings (40).
Insert impeller (12) into scroll housing (16).
b.
Install inlet ring (36) onto scroll housing (16) us-
C.
ing three screws (34) and three flat washers (35).
a.
Insert scroll housing (16) back into position in
Installation
unit.
Handle tubing at service valves and
pressure relief valve with special care to
avoid kinking or creating leaks at brazed
joints.
Bend tubing back into position at service valves
b.
(21 ) and at pressure relief valve (26) with ex-
treme care.
c.
Secure louver control cable (28) to scroll housing
(16) using screw (30), flat washer (31 ), lockwash-
er (32), and clamp (33).
Insert louver control cable (28) through bracket
d.
(29) and secure with nut (27).
e.
Secure high Pressure relief valve (26) to scroll
housing (16) using screw (22), Iockwasher (23),
flat washer (24) and clamp (25).
