PREPARING THE RESPIRATOR FOR USE
CHECKPOINTS BEFORE USE
1. Check that all parts of the respirator are complete and
undamaged. See the Visual Inspection and Functional
Test section for Inspection Procedures.
INSTALLING/REMOVING MOUTH-BIT AND NOSECUP
The nosecup must always be installed when using the
FireHawk M7 Responder Air Mask. Failure to follow
this warning can result in serious personal injury or
death.
This facepiece was designed with the option of being
used with or without the mouth-bit.
Removing the mouth-bit from the nosecup:
1. Remove the nosecup from the facepiece.
2. Push and hold the
stem of the mouth-bit
to the left side of the
mask just underneath
the APR lens recepta-
cle.
3. Place the nosecup in the facepiece and position it so
its rubber ring faces toward the plastic retainer ring.
4. Starting at the top,
stretch and push the
rubber ring of the
nosecup under the
plastic retainer ring of
the speaking
diaphragm assembly.
5. Continue stretching the nosecup ring and work it into
place.
6. Be sure that the nose-
cup does not get
caught on the lens
retainer.
7. Stretch the oval opening in the nosecup around the lip
on the exhalation valve in the component housing.
Inserting the drink tube into the nosecup:
1. Place the nosecup in the facepiece and position it so
its rubber ring faces toward the plastic retainer ring.
2. Locate the “X” cut in
the nosecup and slide
the mouth-bit through
the “X”. Push the
nosecup down the
drink tube until it stops.
3. Starting at the top, stretch and push the rubber ring of
the nosecup under the plastic retainer ring of the
speaking diaphragm assembly.
4. Continue stretching the nosecup ring and work it into
place.
5. Be sure that the nose-
cup does not get
caught on the lens
retainer.
6. Stretch the oval opening in the nosecup around the lip
on the exhalation valve in the component housing.
7. Don the facepiece to ensure the mouth-bit is accessi-
ble to use.
17
TAL 803 (L) Rev. 1 - 10086011
Содержание FireHawk M7 Responder
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