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TM 5-4120-361-14
NOTE :
REMOVE AND INSTALL CONDENSER MOTOR THERMAL PROTECTOR IN SAME MANNER
Figure 4-8.
Evaporator, fan, motor, and thermal protector, removal and installation
d.
Test.
(1) Refer to figure 4-8 and remove
housing from the high and low speed mo-
tor winding thermal protectors.
Refer
to para 4-22c and test thermal protec-
tors.
(2) Test the motor for open-cir-
cuited or grounded windings as follows.
(a) Using a multimeter, test at
P3 for continuity across a combination
of two leads until each of the three
high speed winding leads is tested. Do
the same for the three low speed winding
leads.
If continuity is not indicated,
the winding is open and the motor should
be replaced.
(b) Using a multimeter, test for
continuity by placing one test probe
against the motor housing (on bare metal
only) and the other probe against each
of the motor winding leads.
If contin-
uity is indicated, the winding is
grounded, and the motor should be re-
placed.
(c) Reinstall housing on thermal
protector.
e.
Installation.
—
(1) Refer to figure 4-8 and assem-
ble the fan and motor assembly.
(2) Refer to figure 4-7 and install
evaporator fan and motor assembly.
(3) Refer to figure 4-1 and install
the evaporator air inlet louver.
4-22.
Evaporator Fan Motor Thermal Pro-
tector.
a.
General.
There are two automatic
reset thermal protectors on the evapora-
tor fan motor.
Both thermal protectors
are similar in appearance.
One of the
protectors provides overload protection
for the low speed motor winding while
the other provides protection for the
high speed motor winding.
b.
Removal.
(1) Refer to paragraph 4-21c and
remove evaporator fan and motor assem-
bly .
(2) Refer to figure 4-8 and un-
solder thermal protectors.
4-16
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