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TM 9-4110-257-14
Figure 5-26. Isolation Valves
b. Installation.
NOTE
Isolation valve flare connections are different sizes. Be sure to observe location noted during removal.
(1) Install two new teflon seals (5) and isolation valves (4). Be sure valves are turned toward copper tubing (3) and
tighten to between 50 and 60 ft lb (68 Nm and 82 Nm).
(2) Aline copper tubing (3) and connect two flare nuts (2) to isolation valves (4).
(3) Be sure two isolation valves (4) are open and install two isolation valve caps (1).
NOTE
FOLLOW-ON MAINTENANCE:
Close both side condenser doors.
Replace dehydrator (para 5-14).
Leak check (para 5-10), evacuate (para 5-11), and charge (para 5-12) the refrigeration system.
5-59
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