Adjustment Of Condenser Air Scoop And Safety Switch; Magnetic Clutch Installation Diagram - Piper Navajo Chieftain PA-31-350 Service Manual

1. CAPSCREW
2. ROTOR PULLEY
ASSY.
3. CAPSCREWS LOCK WASHERS
4. FIELD ASSY.
5. COMPRESSOR
NAVAJO CHIEFTAIN SERVICE MANUAL
413
4
Figure 14-40. Magnetic Clutch Installation
d. Complete the hookup of the lines to the condenser. Apply a small amount of Loctite refrigerant
sealant to the flare only to insure leak free connections. (Torque the fittings, refer to Table XIV-X.)
e. With the condenser secured, proceed to evacuate and recharge. (Refer to paragraph 14-101 thru 14-
102.)
f. When the system is completely charged, check it for any leaks. (Refer to paragraph 14-95.)
g. Replace air scoop and access panels.
14-115. ADJUSTMENT
OF CONDENSER AIR SCOOP AND SAFETY SWITCH.
a. Condenser air scoop adjustment is as follows:
1. Disconnect the pin joint between the scoop actuating arms.
2. Place the air conditioner rocker switch in the "OFF" position.
3. When aircraft or external power is applied with the air conditioner breaker(s) closed, the
actuator motor should drive the mechanism clockwise (looking inboard) to the down position.
CAUTION
If the motor turns in the opposite direction turn off power and check the wiring.
4.
With the system in the full down (clockwise) position the length of the actuator arms can be
adjusted to hold the scoop firmly closed.
5. Insert the pins to connect the arms to the scoop and lock the locknuts on the lower clevis of
each arm.
6. The scoop can now be opened by closing the right landing gear scissors switch, placing the air
conditioner rocker switch in air condition position and turning the thermostat control fully clockwise.
NOTE
Temperature in the cabin must be 70
°
F or warmer to actuate the thermostat. If
the temperature is colder than this, the thermostat terminals will have to be
shorted to activate the system.
Reissued: 9/23/80
ACCESSORIES AND UTILITIES
4 H12