Donning - MSA FireHawk M7XT Fonctionnement/Entretien

DONNING THE AIR MASK
1. Remove the facepiece from the case.
DO NOT use a cover lens in a high-temperature environ-
ment, such as firefighting. 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.
Misuse can result in serious injury or death.
2. Ensure the the Audi-Larm
coupling nut is hand-
tight (no tools).
3. Ensure that the cylinder is fully pressurized.
4. Reach the right arm inside the right shoulder straps and
grasp the FireHawk M7XT Control Module. Slide the left
arm through the left shoulder straps.
5. Bend forward slightly; resting the carrier on the back.
6. Attach the chest strap buckle (optional).
7. Fasten the waist belt and pull it tight for a snug fit. Most of
the air mask weight should be carried on the hips.
8. Stand up straight. Pull the shoulder strap pull tabs out to
tighten the shoulder straps. Additional adjustments to the
waist belt may be needed.
9. The shoulder straps and waist strap ends must be tucked
in and lay flat across the body.
BEFORE USING THE AIR MASK
1. Grasp the Firehawk Regulator and push the side buttons.
2. Ensure that the red
bypass knob is fully
closed (clockwise).
WARNING

DONNING

3. Reach behind and fully
open the cylinder valve.
Listen for any hiss or pop sounds from the Audi-Larm Alarm,
if heard, do not use the air mask. Return it to an MSA trained
or certified repairperson. Misuse can result in serious injury
or death.
4. As the system pressure rises from 50 to 250 psi, both visi-
ble and audible alerts activate automatically, indicating
that the air mask is functioning properly. Such alerts
include a brief ring from the Audi-Larm Alarm, a chirp from
the FireHawk M7XT Power Module, and a pressure display
on the FireHawk M7 HUD or I-HUD LEDs.
DO NOT use the air mask if the Audi-Larm Alarm fails to ring,
the FireHawk M7XT Power Module fails to sound, or the
FireHawk M7 HUD or I-HUD fails to light, The air mask must
be checked and corrected for proper operation by an MSA
trained or certified repairperson before using. Misuse can
result in serious injury or death.
5. No air should flow from
the Firehawk Regulator. If
it does, repeat steps 1
and 2.
6. Ensure the FireHawk M7 HUD or I-HUD and FireHawk
M7XT pressure indicators show a full cylinder.
DO NOT use the air mask if the cylinder gauge and FireHawk
M7 pressure readings are not within 5% (110/2216 psi and
225/4500 psi) of full cylinder pressure. Send the unit to an
MSA certified repair person.
11
WARNING
WARNING
CAUTION
MSA 314 (L) Rev. 2 - 10128861