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Figure 4-6. Evaporator drain tubing.
b. Cleaning and Inspection. Clean and inspect
condition. Inspect tee for cracks. Replace defective
drain tubing as follows:
parts.
( 1 ) Flush out tubing and clean out any ac-
C . Installation. Refer to figure 4-6 and install
cumulation of dirt or other foreign matter from tee.
drain tubing as follows:
Use a small diameter brush or a piece of soft wire to
( 1 ) Connect each piece of tubing to tee with
clean drain tube in housing.
hose clamps.
( 2 ) Inspect tubing for split or deteriorated
(2) Connect tubing to drain connections with
hose clamps.
Section IX. MAINTENANCE OF FRESH AIR VENT DAMPER AND CONTROL
4-26. General
4-27. Adjustment
The vent damper opens and closes the fresh air inlet
a. The wire core of the push-pull control is at-
passage. It is opened and closed by a push-pull type
tachcd to the actuator (fig. 4-7) and to the rod on
control attached to the damper and to an actuator
top of the vent damper (fig. 4-8) by a mechanical
(fig. 2-3).
post. To change the adjustment at either end,
4-13
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