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 TM 9-4120-425-14&P
EVAPORATOR COIL DIRECT SUPPORT MAINTENANCE REPLACEMENT - Continued
0077-00
WARNING
Disconnect air conditioner power supply.
WARNING
by flame or hot surfaces creates phosgene gas, a highly toxic gas.
WARNING
Do not let refrigerant touch you or inhale refrigerant gas. Be especially careful to
prevent refrigerant from coming in contact with your eyes. Wear air filter mask for
protection. In case of refrigerant leaks, ventilate area at once.
WARNING
Follow general debrazing instructions given in WP 0051-00. Provide a flow of dry
nitrogen through the refrigeration system while debrazing connections.
REMOVAL
1.
Remove six screws (1), securing evaporator coil (3) to housing.
2.
Debraze tubing from evaporator coil and expansion valve subassembly. See debrazing joints (4 and 5).
3.
Carefully lift the evaporator coil and expansion valve subassembly from the air conditioner.
4.
Debraze the distributor (6) from the expansion valve (7) (See WP 0051-00).
5.
Remove insulation to release sensor bulb (9) from suction return line (8).
6.
Debraze suction return line (8) from evaporator coil (3) (See WP 0051-00).
7.
Remove filter-drier (WP 0066-00).
INSPECTION
Inspect the evaporator coil for bent or torn fins and for damaged connections.
0077-00-2
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