TM 9-4120-378-14
5.16
EVAPORATORCOIL-REPLACE/REPAIR. . This task covers removal and installation.
.
INITIAL SETUP
Equipment Conditions:
Materials/Parts:
Top covers removed (paragraph 4.17)
Dry cleaning solvent (P-D 680) (Appendix E, Item 16)
Evaporator outlet louver removed (paragraph 4.18)
Nitrogen (Appendix E, Item 5 or 6)
System refrigerant discharged (paragraph 5.4)
Brazing alloy (Appendix E, Item 5 or 6)
Mist eliminator removed (paragraph 4.20)
Brazing flux (Appendix E, Item 7)
Warm, soapy water
Test Equipment:
Brush, wire
Halogen leak detector
Cloth, lint-free (Appendix E, Item 9)
Location/Item
Action
Remarks
Purge system with dry nitrogen prior to
soldering; refrigerant heated by flame
or hot surfaces creates phosgene gas,
a highly toxic gas.
Do not let refrigerant touch you or in-
hale refrigerant gas. Be especially
careful to prevent refrigerant from
coming in contact with your eyes. In
ease of refrigerant leaks, ventilate
area at once.
Check that power source is discon-
nected.
