User's Manual

DONNING
5. Tighten the two side
t
emple straps in the
same manner as
described in step 4.
Ensure that the face-
piece tabs are not
t
ucked under the face
seal.
6. Ensure the back of the
harness is centered on
the back of the head
and that the facepiece
seal provides uniform
pressure on the face at
all points. Readjust the
straps if needed.
FACEPIECE FIT CHECK
Note: Check the inhalation valve by inhaling. If the face-
piece does not provide sufficient flow of air, do not use
facepiece. The facepiece must be repaired or replaced.
1. Check facepiece fit,
a. Hold the palm of the hand over the facepiece inlet
adapter.
b. Take a deep breath
and hold it for at
least 10 seconds.
The facepiece
should collapse and
stay collapsed
against the face. If it
does not, readjust
the facepiece and
test again. If this
does not correct
the leak, do not use
the facepiece.
2. Test the exhalation valve.
a. Take a deep breath and hold it.
b. Block the facepiece inlet adapter with the palm of
the hand and exhale. If the exhalation valve is stuck,
a heavy rush of air around the facepiece may be
noticed. A sharp exhalation of air may be needed to
open the valve. If this does not release the valve, do
not use the facepiece.
This device may not seal properly to the face if a
beard, gross sideburns or similar physical characteris-
tics (see NFPA-1500 and ANSI Z88.2) exist. An improp-
er facial seal may allow contaminants to leak into the
f
acepiece, reducing or eliminating respiratory protec-
tion. Do not use this device if such conditions exist.
The face-to-facepiece seal must be tested before
each use. Never remove the facepiece except in a
safe, non hazardous non-toxic atmosphere. Failure to
follow this warning can result in serious personal
injury or death.
3. Open the cylinder valve
fully. Push in on the
side buttons of the
Firehawk Regulator to
stop air flow.
4. Listen for any hissing or popping sounds from the
Audi-Larm Alarm. If heard, return the air mask to an
MSA trained or certified repairperson.
INSTALLING THE SLIDE-TO-CONNECT FIREHAWK
REGULATOR ON THE FACEPIECE
Note: The slide-to-connect regulator has a side button
with a two pronged fork protruding from it. If this “fork” is
not present refer to the Installing the Push-To-Connect
Firehawk Regulator section of this manual.
1. Grasp and orient the
regulator so that red
bypass knob is point-
ing to the right and
slide button is on top.
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TAL 708 (L) Rev. 1 - 10082858