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TM5-4120-387-14
(7) Purge the system with nitrogen and debraze the tube connections. (See
para 5-7 and 5-8.)
(8) Remove the valve body.
b.
Installation.
If valve body was not removed, go to step (3).
(1) Place the valve body on the tube ends,
purge the system with nitrogen
and braze the tube joints.
(See para 5-7 and 5-8.)
(2) Using a screwdriver,
secure the valve body to unit with two screws and
lockwashers.
(3) Check internal surfaces of valve body to he sure it is clean.
(4) Carefully install diaphragm,
O-ring, and tube and plunger. Secure to
valve body with two screws.
(5) place coil assembly and data plate onto tube and plunger and secure
with nut. For Model 3873, also install spacer onto coil assembly.
(6)
Replace the dehydrator.
(See para 5-13)
(7)
Leak test all newly connected joints and those in the repaired area.
(See para 5-9.)
(8) Evacuate and charge the refrigerant system. (See para 5-10 and 5-11.)
Follow-on procedures: 1.
Install junction box.
(See para 4-29.)
2.
Install top panel.
(See para 4-23.)
5-20. LIQUID QUENCH EXPANSION VALVE (V4)
Preliminary procedure: 1. Remove top panel.
(See para 4-23.)
2.
Remove fan motor.
(See para 4-60.)
Change 3
5-43
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