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TM 9-4120-389-14
(c)
Install crankcase heater in receptacle.
(d)
Install spring clip in receptacle.
(e)
Install thermal mastic (Item 17 of Appendix E) to heater.
(f)
See tags and wiring diagram (FO-1) and install push-on leads B1-1 and B1-2. Remove
tags.
(g)
Install ties as needed.
b.
Compressor motor windings test.
(1)
With hand, depress clips on side of junction box cover. Remove cover.
(2)
Tag and disconnect leads at terminals T1, T2 and T3.
(3)
Check continuity between terminals T1, T2, T3 and the compressor body.
(4)
If continuity exists at any terminal, the compressor is bad and must be replaced.
(5)
Test three phase windings as follows: T1 to T2, T1 to T3 and T2 to T3.
(6)
If all resistances are not above zero and less than 1 ohm, replace compressor.
(7)
See tags and connect leads. Remove tags.
(8)
Replace junction box cover.
NOTE
Steps a. and b. are applicable to serial numbers 1 thru 989. See steps c., d., e.
and f. for serial numbers 990-1335. Steps g., h. and i. are applicable to serial
numbers 1 thru 1335.
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