TM 9-4120-395-14&P
Figure 5-7. Check Valve
c.
Installation.
(1) Place check valve in the unit.
(2) Wrap wet rags around valve near connection points.
CAUTION
Direct flame away from the check valve.
(3) Purge system with nitrogen and braze the tubing joints. See para 5-6 and 5-7.
(4) Replace drier. See para 5-12.
(5) Leak test the system. See para 5-8.
(6) Evacuate and charge the system. See para 5-9 and 5-10.
(7) Install both front door assemblies. See para 4-17.
5-31
