MSA FireHawk M7, Operation And Instructions Manual

Page: 38 / 56

REMOVING THE AIR MASK
ing, gauge lens melted, or elastomeric materials
distorted.
2. Use this device only after receiving proper training
in its use. Use in accordance with this label and
MSA apparatus instructions.
3. To maintain NIOSH approval, the cylinder must be
fully charged with respirable air meeting the
requirements of the Compressed Gas Association
specification G-7.1 1989 for Quality Verification
Level (grade) D air or equivalent specification. In
fire service applications, MSA recommends breath-
ing air quality in accordance with NFPA 1989.
4. Do not use unless the cylinder is filled to the maxi-
mum working pressure.
5. Do not alter, modify, or substitute any components
without approval of the manufacturer.
6. Inspect frequently. Maintain according to manufac-
turer’s instructions. Repair only by properly trained
personnel.
Misuse can result in serious injury or death.
SAFETY PRECAUTIONS FOR MSA SELF-CONTAINED
BREATHING APPARATUS CYLINDERS
Breathing apparatus cylinders should be fully recharged
as soon as possible after use.
Cylinders should not be stored partially charged:
1. If used partially charged, the duration of the air mask
is reduced.
2. The pressure relief device is only designed to protect
a fully charged cylinder from the effects of a fire.
For maximum safety, the cylinders should be stored full or
at a pressure above ambient but less than 100 psi.
Prior to recharging, cylinders must be examined externally
for evidence of high heat exposure, corrosion, or other
evidence of significant damage.
Additional information of value when performing external
and internal inspections of cylinders may be found in the
latest editions of CGA Publication C-6: "Standards for
Visual Inspection of Steel Compressed Gas Cylinders",
CGA Publication C-6.1: "Standards for Visual Inspection
of High Pressure Aluminum Compressed Gas Cylinders",
and/or CGA Publication C-6.2: "Guidelines for Visual
Inspection and Requalification of Fiber Reinforced High
Pressure Cylinders" available form the Compressed Gas
Association, Inc., 1725 Jefferson Davis Highway, Suite
1004, Arlington, VA 22202-4102.
If there is any doubt about the suitability of the cylinder
for recharge, it should be returned to a certified hydrostat-
ic test facility for expert examination and testing.
Always check to be sure the retest date is within the pre-
scribed period and that the cylinder is properly labeled to
indicate its gaseous service. New labels are restricted
items which are not available except through certified
hydrostatic test facilities.
When replacing cylinder valves or after the retesting of
cylinders, make sure the proper cylinder valve, burst disc,
and o-ring are installed prior to cylinder recharging.
Determine the maximum service pressure of the cylinder.
Type 3 AA (steel) cylinders that bear a plus (+) sign after
the latest retest date may be recharged to a pressure, i.e.
a cylinder stamped 3AA2015 with a plus (+) sign after the
test date may be recharged to 2216 psi. (this applies to
steel cylinders only). Steel cylinders without the plus (+)
sign stamped after the latest test date must be removed
from service. All other cylinders which are not 3AA type
shall be filled to the designated service pressure only (as
found on the DOT approval or stamping). For cylinders
manufactured under a U.S. DOT exemption (i.e., DOT-E-
#####), the exemption should be consulted and is avail-
able from the Associate Administrator for Hazardous
Materials Safety, Research and Special Programs
Administration, U.S. Department of Transportation, 400
7th Street, SW, Washington, D.C. 20590-0001.
Appropriately connect the cylinder to the filling system
and refill. Terminate the filling when the pressure reaches
the maximum service pressure and allow the cylinder to
cool to room temperature. If necessary, top-off the cylin-
der such that the service pressure is attained with the
cylinder at a temperature of 70°F. Close the valves on the
cylinder and the filling system and remove the cylinder.
Apply a leak solution to determine if there is any leakage
between the cylinder and the valve. If there is no leakage,
the cylinder is ready for use.
STORAGE
Do not store the air mask or spare cylinders within or near
an area where the air mask can or might be exposed to
any substances that will or might attack any part of the air
mask, causing the air mask to not perform as designed
and approved.
Prior to storing the air mask in a jumpseat, ensure there is
no interference between the air mask and the seat.
DO NOT drop the cylinder or bump the valve knob. An
unsecured cylinder can become an airborne projectile
under its own pressure if the valve is opened even
slightly. Misuse can result in serious injury or death.
Do not store the air mask for extended periods with the
batteries installed in the electronic components if the air
mask is not intended for service. If the air mask is in ser-
vice, ensure that the batteries in the electronic compo-
nents have an adequate charge. Do not store the air mask
38 TAL 1705 (L) Rev. 18 - 10082858