REMOVING THE AIR MASK
10. Before installing the Audi-Larm Alarm, check that the
o-ring inside the Audi-Larm Alarm coupling nut is pre-
sent and free of damage. If the o-ring is damaged, it
must be replaced before the alarm is used.
11. Thread the Audi-Larm
Alarm coupling nut on
to the cylinder valve
thread form and hand-
tighten (no tools).
CHARGING CYLINDERS
A lightweight SCBA cylinder can become airborne solely
under the thrust of air from an inadvertently opened cylin-
der valve. If a cylinder is removed from a horizontal shelf
by grasping the handwheel, the weight of the cylinder can
cause the cylinder to rotate downward causing the valve
to open slightly.
•
Never carry a cylinder by the handwheel.
•
Avoid dropping the cylinder or bumping the hand-
wheel.
•
Use the handwheel only to open and close the
cylinder valve.
A valve could partially open causing the cylinder to
become an airborne projectile under its own pressure
and result in serious personal injury or death.
1. Remove from service if cylinder shows evidence of
exposure to high heat or flame: e.g., paint turned
to a brown or black color, decals charred or miss-
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.
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.
Failure to follow these warnings can result in serious
personal 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
36
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