TM 9-4120-370-14
TO 35E9-229-1
For inspection and cleaning of installed coil, see Para 468
Preliminary procedures:
1. Remove heater elements (HR1 through HR6). (See para 462.)
a . Removal
(2) Using a drill bit slightly smaller than the rivit body, drill out the two rivets that secure the heater thermostat
bracket.
(3) Remove the heater thermostat and bracket, (Wire leads should have been tagged and disconnected when
heaters were removed.)
(4) Using a drill bit slightly smaller than the rivet body, drill out the four rivets that secure the upper heater
support.
(5) Remove the upper heater support,
(6) Remove the two grommets from the inlet (distributor) and outlet evaporator tubes.