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TM 5-4120-374-13
ACTION
REMARKS
LOCATION/lTEM
7. Compressor Burnout a. If the compressor is mechanically frozen or has sustained a
Procedure
motor burnout, replace the compressor.
b. Flush out the entire refrigeration system as follows or
repeated burnouts wiII occur.
(1) Refer to paragraph 5-7 and discharge refrigerant system.
(2) Purge refrigerant system with dry nitrogen (paragraph 5-7).
(3) Remove defective compressor.
(a) Unscrew and remove flare nut connecting suction
refrigerant line to compressor.
(b) Remove suction refrigerant line from compressor.
(c) Unsolder and remove discharge line from compressor.
(d) Remove four (4) nuts, capscrews and eight (8) flat
washers securing compressor to housing.
(e) Tag and disconnect electrical leads from compressor.
(f) Remove compressor from housing through left side.
(4) With compressor removed, purge refrigerant system
with dry nitrogen (paragraph 5-7).
(5) Install new compressor.
(6) Install new dehydrator (paragraph 5-12).
(7) Discharge refrigerant system three (3) times (para. 5-7).
(8) Start and operate air conditioner for twenty-four hours
(9) Stop air conditioner (paragraph 2-5).
(10) Discharge refrigerant system and purge with dry nitrogen
(11) Remove dehydrator and install a new one (para. 5-12).
(12) Discharge refrigerant system and recharge with refrigerant
(13) Operate air conditioner.
5-13
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