Repair. If the quench valve is leaking refrigerant, refer to figure 4-14 and repair the quench valve.
d. Replace. If damage or defects are found which would impair serviceability and is not repairable, replace the
quench valve. Refer to paragraphs e and f for removal of defective quench valve and the installation of a new valve.
(1) Turn the selector switch to the "OFF" position and disconnect the air conditioner from the electrical power
(2) Refer to figure 3-13 and partially remove the junction box.
(3) Refer to figure 3-4 and remove the evaporator fan.
(4) Refer to figure 4-2 and release refrigerant from the system.
(2) Perform any further maintenance of refrigeration components required.
(3) If no further maintenance of refrigeration components is required, refer to paragraph 4-8 and purge the
(4) Refer to paragraph 4-4c and check the quench valve and the dehydrator for refrigerant leaks. Refer to
paragraph 4-4d and repair any leaks found.
(5) Refer to paragraph 4-4 and evacuate the refrigerant system.
(6) Refer to paragraph 4-10 and charge the system with refrigerant.
(7) Refer to figure 3-4 and install the evaporator fan.
(8) Refer to figure 3-13 and install the junction box.
(9) Re-perform inspection procedure (paragraph a) for quench valve to check for refrigerant leaks.
LIQUID LINE SOLENOID VALVE AND PRESSURE EQUALIZER SOLENOID VALVE.
a. General. Inspection and testing of the solenoid valves is accomplished at organizational level (refer to
b. Removal. (See figure 4-15.)
Remove the liquid line solenoid valve and/or the pressure equalizer solenoid valve
only for repair or replacement.