TM 9-4120-378-14
4.22 FRESH AIR DAMPER AND ACTUATOR.- continued
Action
Remarks
Location/Item
Installation
d. Slide control cable wire ends into mechanical
Continued
posts (2).
e. Tighten control cable retaining nuts (8).
f. Tighten screws (1) to mechanical posts (2).
Ventilation
Control
Actuator
a. Slide control actuator (7) into position on unit.
Installation
b. Install screw (5), two spring washers (6) and nut
(4) that hold control actuator (7) in position.
c. Slide push-pull control cable wire (3) into me-
chanical post (2).
d. Tighten screw (1) to mechanical post (2).
a. Position control actuator (7) to fully closed posi-
Adjustment
tion.
b. Loosen screw (1) from mechanical post (2) of
fresh air damper.
c. Position fresh air damper to fully closed position
by hand while looking down vent housing from
evaporator fan motor compartment with flash-
light.
d. Tighten screw (1) on mechanical post (2).
e. Shine flashlight into fresh air damper screen side
of unit (read side) while looking into vent housing
from evaporator fan motor compartment. Ensure
no light can be seen around edges of damper
seal. If fails, repeat adjustment procedure. If
fails again, service or replace fresh air damper as
necessary.
See paragraph 4.18.
f. Install evaporator inlet and outlet louvers.
See paragraph 4.17.
g. Install top covers.
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