Donning - MSA AirHawk II Manual De Instrucciones

DONNING THE AIR MASK
1. Remove the facepiece from the case.
Do not use a cover lens in a high-temperature
environment. High temperatures may distort the cover
lens, or moisture trapped between a cover lens and
the facepiece lens may condense and distort vision.
Always remove the cover lens before donning the
facepiece.
2. Ensure that the Audi-
Larm coupling nut is
hand-tight (no tools).
3. Check that the cylinder is fully pressurized.
If the cylinder is not full, the service time is reduced
accordingly & should not be used.
DO NOT use an air mask with a loose Audi-Larm
coupling nut. Using an air mask with a loose coupling
nut can cause o-ring failure which can result in sudden
loss of cylinder pressure. Always hand-tighten the
coupling nut before using the air mask. Failure to follow
this warning can result in serious personal injury or
death.
4. Reach inside the right shoulder straps and grasp the
pressure gauge, slide left arm through left shoulder
straps.
5. Bend forward slightly, rest it on your back.
6. Attach the chest strap (optional).
7. Fasten the waist-strap and pull it tight for a snug fit.
8. As you straighten up, pull the shoulder strap tabs out.
Hike the unit up for a comfortable fit.
9. The shoulder straps and waist-strap ends must be
tucked in and lay flat across the body.
REGULATOR AND AUDIBLE ALARM CHECKS
TESTING
1. Grasp the mask mounted regulator and push the top
release button.
TAL 1211 (L) Rev. 4 - 10088650

DONNING

2. Check that the red
bypass knob is fully
closed (clockwise).
3. Reach behind and
open the cylinder valve
fully. Listen for the
alarm to sound briefly.
4. As the pressure rises from 50 to 200 psig, the alarm
sounds automatically, indicating that the alarm is
functional.
If the alarm fails to sound, do not use the apparatus.
The air mask must be checked and corrected for
proper operation by an MSA trained or certified
repairperson before using. Failure to follow this
warning may result in serious personal injury or death.
5. No air should flow from
the regulator. If it does,
repeat steps 1 and 2.
6. Check the gauge and cylinder gauges. Gauges must
be within 220 psig for 2216 psig; 450 psig for 4500
psig.
If your readings do not agree with these values, return
the air mask to an MSA trained or certified
repairperson.
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