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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 />

3<br />

INTERVAL LOCATION PROCEDURE NOT FULLY MISSION<br />

CAPABLE IF:<br />

ITEM TO<br />

CHECK/<br />

SERVICE<br />

Before<br />

Internal<br />

Drink Tube<br />

Check that internal drink<br />

tube (1) is present and<br />

securely attached.<br />

Internal drink tube is<br />

missing or loose.<br />

4<br />

Before<br />

Microphone<br />

Assembly<br />

Check that microphone<br />

assembly (2) is present<br />

and the front is oriented<br />

toward your mouth.<br />

Microphone assembly<br />

is missing.<br />

2-6

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