TM 9-4120-407-14
4-30. EVAPORATOR COIL REPLACEMENT.
b. Installation
This task covers:
a. Removal
Mist eliminator removed. See para 3-17.
Service Refrigeration Unit Tool Kit
Coil. frost switch removed. See para 3-27.
(Item 1, Appendix B)
Refrigerant desiccant dehydrator removed. See
Gloves (Item 2, Appendix B)
Rivet Gun (Item 8, Appendix B)
Evaporator fan and motor nearest refrigerant tubing
removed. See para 3-34.
Insulation Tape (Item 16, Appendix E)
Rivets, Qty 2 (Item 11, Appendix G)
Rags (Item 12, Appendix E)
When handling coils, wear gloves to avoid cuts and reduce fin
damage to the coil.
(1) Remove two rivets (1) and carefully move bracket (2) clear of evaporator coil (3). Discard any
remaining rivet material.
(2) Remove insulation (4) from tubing (5).
(3) Note position of sensing bulb (7) and loosen two screws (6). Carefully pull sensing bulb from
clamps (8).
Protect expansion valve during brazing operations. High heat can
damage valve.
(4) Wrap expansion valve (9) with wet rags to prevent damage from high heat. Debraze tubing (5).
See paragraph 4-14.
When handling coils, wear gloves to avoid cuts and reduce fin
damage to the coil.
(5) Remove twelve screws (10) and carefully remove evaporator coil (3).
(6) Remove two grommets (11).
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