Specifications

DONNING
after the apparatus is depressurized. (A single Red LED
light will flash at this time).
10. When the pressure falls below 200psig, turn the ICM
Unit Gauge off.
I
f the Audi-Larm Alarm with URC Assembly fails to
ring, ICM Unit Gauge or NightFighter Heads-Up
Display System fails to light or tone, or fails to contin-
uously ring to 200psig, do not use the apparatus. The
SCBA must be checked and corrected for proper
operation by an MSA trained or certified repairperson
before using. Failure to follow this warning can result
in serious personal injury or death.
Note:
Before donning, check that the regulator sealing
ring is seated properly in its groove, and that it is not torn,
gouged, or nicked.
DONNING THE FACEPIECE WITH THE SPEED-ON
HEAD HARNESS
1. Place neckstrap, if present, around your neck so that
the facepiece lens is against the body.
2. Loosen all the harness
straps. Grip the bottom
straps.
3. Insert chin well into the
lower part of facepiece,
then pull the harness
back over head.
4. Pull the back of harness
downward until cen-
t
ered at the back of the
h
ead.
5. Tighten the two lower
straps first by pulling
them straight back, not
out. Tighten the face-
piece until the mask is
snug against the face.
6. Tighten the two side
temple straps in the
same manner as
described above.
Ensure that the face-
piece tabs are not
tucked under the face
seal.
7. The top strap is not
adjustable on some
models. Make sure the
back of the harness is
centered on the back of
the head and the face-
seal is providing uni-
form pr
essure on the
face at all points.
Readjust straps if need
-
ed.
FACEPIECE FIT CHECK
Note:
Check the inhalation valve, inhale. If you do not
receive sufficient flow of air, do not use facepiece. The
facepiece must be repaired or replaced.
11
T
AL 606 (L) Rev. 16 - 10023638
WARNING