TM 10-8415-208-12
3-9. EMERGENCY BREATHING APPARATUS (EBA) MAINTENANCE INSTRUCTIONS. (CONT)
3-9.2.17 Removing/Installing Exhalation Valve.
a.
Removing.
(1)
Using the MSA special tool, remove retaining nut (1) inside face piece (2).
(2)
Pull exhalation valve (3) from the bottom of face piece (2).
b.
Installing.
(1)
Push new exhalation valve (3) through the opening in the bottom of face piece (2).
(2)
Thread new retaining nut (1) onto exhalation valve (3) by turning exhalation valve (3).
(3)
Using the MSA special tool, tighten retaining nut (1).
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