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(5) Remove evaporator coil. (fig. 4-7).
b. Service. The only service required is keeping
the coil clean and the fins straight. One method of
cleaning is to wipe the exterior surfaces with a clean
cloth dampened with an approved cleaning solvent
and dry thoroughly. The other is clean with a soft
bristled brush, vacuum cleaner, high velocity air, or
a plastic fin comb. When using high velocity air
always direct the air stream straight into the coils to
avoid bending the fins and in a direction opposite to
the normal air flow. The plastic fin comb can be
used also to straighten the fins.
c. Testing. Refer to paragraph 4-7 and figure 4-
2 and use test procedure listed.
d. Repair. To make repairs on the evaporator
coil, refer to paragraph 4-10 and follow given
procedures.
e. Installation.
(1) Install the evaporator coil. (fig. 4-7).
(2) Check for refrigerant leaks. (para 4-7).
(3) Evacuate the refrigerant system. (para 4-
8).
(4) Charge the refrigerant system. (para 4-9).
(5) Replace the condenser intake grille. (fig.
3-4).
(6) Replace the front, rear and side panels of
the evaporator section. (fig. 3-1).
Figure 4-7. Evaporator coil removal and installation.
4 - 1 3
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