TM 9-4120-402-14
5-31. EVAPORATOR COIL. - continued
WARNING
When handling coils, wear gloves to avoid cuts and reduce fin damage to the coil.
Replace.
(1)
Remove refrigerant desiccant dehydrator and purge refrigerant system. (See paragraph 5-21 and 5-
12.)
(2)
(3)
(4)
CAUTION
Protect expansion valve during brazing operations. Direct flame away from valve body and wrap
valve body with wet rags.
(5)
Debraze tube joint (1) and distribution lines header at expansion valve. (See paragraph 5-13.)
(6)
Remove four screws (2). Remove two side panel inserts (3).
(7)
Remove seven sets of screws (4) and packing with retainers (5) while supporting the evaporator coil
(6).
(8)
Remove two sets of screws (7) and flat washers (8) that attach mist eliminator brackets (9) to coil (6).
Remove mist eliminator brackets (9).
(9)
Remove three sets of screws (10) and flat washers (11 ) from each of the evaporator coil brackets (12).
Slip evaporator coil brackets (12) up and out of unit.
(10) Remove screw (13), lock washer (14), flat washer (15), and clamp (16) from distributor lines.
(11) Carefully lift coil (6) up and out of unit.
(12) Drill out rivets (17) using a drill bit slightly smaller that the diameter of the rivet. Remove plate nuts
(18).
(13) Install plate nut(s) (18) on new coil (6) using rivets (17).
WARNING
When handling coils, wear gloves to avoid cuts and reduce fin damage to the coil.
(14)
Carefully lower evaporator coil (6) down into unit.
5-77