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technical manual operator instructions

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Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR MASK,<br />

CHEMICAL-BIOLOGICAL: M45 (con’t)<br />

ITEM<br />

NO.<br />

INTERVAL LOCATION PROCEDURE NOT FULLY MISSION<br />

CAPABLE IF:<br />

ITEM TO<br />

CHECK/<br />

SERVICE<br />

5 Before Nosecup<br />

Assembly<br />

a. Check that nosecup (1)<br />

is attached to front<br />

voicemitter (2) and outlet<br />

valve housing(3).<br />

Nosecup is pulled away<br />

from voicemitter/outlet<br />

valve housing.<br />

b. Run finger along inner lip<br />

(4) of nosecup to make sure<br />

lip does not stick to inside of<br />

nosecup.<br />

c. Check that nosecup (1)<br />

is not stuck to inside of<br />

facepiece.<br />

Inside surfaces are<br />

damaged or cannot be<br />

separated.<br />

Nosecup cannot be<br />

separated from facepiece.<br />

2-7

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