TM 5-4220-227-14
(4) Remove three nuts (10), washers (11) and screws (12) that secure back pressure regulator (13) to chamber
control console (14).
(5) Remove back pressure regulator (13).
(6) Remove two elbows (15) from regulator (13).
WARNING
Leave 1 1/2 threads exposed on fitting when applying teflon tape. This will ensure that no
teflon tape will hang down inside the air system. Teflon tape should be wrapped in such a
manner that when the fitting is tightened the tape will not loosen. Failure to wrap teflon tape
correctly may result in contamination or blockage of the air system and subsequent possible
injury or death to the diver.
(7) Apply teflon tape to all pipe threads.
(8) Install three elbows (15) on regulator (13).
(9) Position back pressure regulator (13) in the chamber control console (14) and secure with three screws
(12)
washers (11) and nuts (10).
(10) Install two lines (8) and (9) and tighten two fitting nuts (7).
(11) Install line (6) and tighten fitting nut (5).
(12) Pressurize system, and check connections for leaks. Check regulator for proper operation.
(13) Remove two pins (4), supports (3), close enclosure door (2) and secure with two latches (1).
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