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EVAPORATOR
AIR OUTLET
SCREW AND
LOUVER
LOCK WASHER {6)
Figure 4-2. Evaporator air louvers and air filter.
b. Removal. Remove ten screws and lock
and secure louver to housing with ten screws and
washers and remove evaporator air inlet louver (fig.
lock washers.
4-2 ). Slide return air filter from retaining clips on
louver.
c. Cleaning and Inspection.Clean and inspect air
filter as follows:
( 1 ) Wash filter in detergent or cleaning solvent
(Fed. Spec. P-D-680). Dry thoroughly.
(2) Inspect filter for damage or clogged
condition. Replace filter if damaged or clogged.
(3 Reoil filter with SAE 30 oil. Drain eight
hours and wipe off excess oil.
d. Installation. Slide filter into air inlet louver
4-18. Evaporator Air Inlet and Outlet Louvers
a. General. The evaporator air inlet louver is
adjustable to control the amount of return air that
will pass through the air conditioner when the fresh
air ventilation damper is open. The evaporator air
outlet louver, mounted in front of the evaporator
coil, has individual) adjustable blades to direct the
evaporator air outlet flow.
l
b. Removal. Refer to paragraph 4-17 and remove
the evaporator air inlet louver. Refer to figure 4-2
4-7
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