TM 3-4240-280-10
TM 3-4240-280-10
TM 3-4240-280-10
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2-<strong>10</strong>. CHECKING YOUR FACEPIECE FOR LEAKS (CONT).<br />
(5) Airleaks may becaused byafaulty outlet valve (l O)orbythe outlet valve Mingheld<br />
on by dirt or bloom (a waxy surface coating from rubber preservative). Breathe out<br />
forcefully several times. This will usually remove foreign matter or bloom. If not, pull<br />
down rubber outlet valve cover (11 ) and carefully remove any dust, ditl or debris on<br />
the valve disk and underside of the valve disk(12) with a damp cheesecloth (item 4,<br />
app D). Remove excess moisture with a dry cheesecloth. If outlet valve disk(12) is<br />
sticking, massage lightly with one finger.<br />
NOTE<br />
If you cannot stop leakage, see your unit NBC NCO for assistance,<br />
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