TM 9-4120-388-14
5-20. LIQUID QUENCH EXPANSION VALVE - Continued.
(4) Carefully remove the power assembly, cage assembly, and gaskets.
NOTE
If valve body flange is not damaged, do not remove (debraze) it from the system.
(5) If valve body flange is to be removed, purge the system with nitrogen and braze the two tubing joints. (See
d. Installation.
If valve body flange was removed, purge the system with nitrogen while brazing the two tubing joints. (See
(1)
(2)
Place capscrews, Iockwashers, flat washers, and spacers through bracket and valve body flange.
(3)
(4)
Be sure that valve components are properly assembled and aligned. Secure power assembly to body
flange.
Insert sensing bulb into its mounting loop clamps in its original position, and tighten the screws and nuts.
(5)
Be sure sensing bulb is installed in the original position and is making good metal-to-metal contact with
suction line.
Reinstall insulation tubing that was removed from sensing bulb and liquid quench expansion valve connec-
(6)
tions. Secure insulation tubing with tape (item 14, Appendix E.)
(7)
Leak test all newly connected joints and those in the repaired area. (See para 5-10.)
(8)
Evacuate and charge the refrigerant system. (See para 5-11 and 5-12.)
(9)
5-46