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a. From inside the facepiece, press the top of the exhala-
tion valve housing into place.
b. From outside the facepiece, pull the bottom of the ex-
halation valve
housing until it
snaps into place.
2. Install the U-clip.
3. Turn the facepiece over and work the bottom of the
nosecup under the
facepiece seal.
ADVANTAGE 4000 FACEPIECE
Assembling the Exhalation Valve Housing
Component Housing
Stem
Exhalation Valve
Exhalation Spring
Spring Retainer
Exhalation-valve Cover
Push-to-Connect Adapter
O-Ring
Inhalation Valve
Spring (2 req'd)
Locking Button
Christo-Lube
1. Lightly lubricate exhalation valve orifice with
Christo-Lube.
2. Carefully stretch the exhalation-valve disc
onto the stem.
3. Insert valve stem into the slot.
4. Place exhalation spring onto the spring retainer.
5. Hold the spring and retainer together while placing
the other end of the
spring onto the valve.
9
10065329
10061994
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10065083
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604070
MSA 9011 (L) Rev. 0 - 10104243
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