MSA AirHawk MMR, Инструкция по эксплуатации и руководство пользователя, Страница: 12 / 24

REMOVING THE APPARATUS
1. Be sure there is no
pressure in the system
before replacing a cylin-
der. Disconnect the
coupling nut.
2. Lift over center buckle to loosen the cylinder strap.
3. Slide out the empty cylinder and install one that is fully
charged. Be sure that the adjustable cylinder buckle is
properly adjusted.
4. Slide the fully charged cylinder into the carrier, with
gauge facing out, close the over center buckle to
tighten the cylinder strap.
5. To check that the cylinder is secure, place one hand
on the backplate and grasp the cylinder valve with the
other. Try to pull the cylinder and valve down and out
away from the carrier. Make sure that the strap and
buckle hold the cylinder securely in the carrier.
Note: If the cylinder feels loose, re-check that the strap
and buckle are properly adjusted. Open cylinder buckle.
Tighten cylinder strap by pulling on top (outer) strap. It will
be necessary to reposition the black plastic slide during
adjustment. Tighten cylinder strap until cylinder buckle is
approximately 45° from vertical. Close the cylinder buckle.
Do not use the Air Mask if the cylinder is not held securely
in the carrier.
Over adjusting the cylinder strap will damage the cen-
ter buckle assembly.
6. Check that the O-ring is inside the coupling nut. If the
O-ring is damaged it must be replaced before the
alarm is used.
7. Thread the coupling nut to the cylinder valve and
hand-tighten (no tools).
CHARGING CYLINDERS
Always check to be sure the hydrostatic test date is within
the prescribed period and that the cylinder is properly
labeled to indicate its gaseous service. New labels are
restricted items which are only available through certified
hydrostatic test facilities.
Inspect the cylinder body for cracks, dents, weakened
areas, corrosive agent, causing the fibers to break or peel,
or signs of heat-related damage. If the cylinder is dam-
aged, return it to an MSA Service Center. Call 1-800-
MSA-2222 for instructions.
When replacing cylinder valves or after retesting of cylin-
ders, make sure the proper cylinder valve, burst disc, and
gasket are installed prior to cylinder recharging. Establish
the service pressure of the cylinder. Type 3AA (steel) cylin-
ders that bear a plus (+) sign after the latest retest date
may be recharged to a pressure 10% greater than the
stamped service pressure, i.e., a cylinder stamped
3AA2015 with a plus (+) sign after the latest test date may
be recharged to 2216 psig (this applies to steel cylinders
only). Steel cylinders without a plus (+) sign stamped after
the latest test date must be removed from service. All
other cylinders which are not type 3AA shall be filled to the
designated service pressure only (as found on the DOT
approval label or stamping). Appropriately connect the
cylinder to the filling recharge system and refill. Terminate
the filling when the pressure reaches service pressure and
allow the cylinder to cool to room temperature.
If necessary, top-off the cylinder such that service pres-
sure is attained with the cylinder at a temperature of 70°F.
Close the valves on the cylinder and the recharge system
and remove the cylinder. Apply a soap solution to deter-
mine if there is any leakage between the cylinder and the
valve. If there is no leakage, the cylinder is now ready for
re-use.
STORAGE
Do not store the apparatus or spare cylinders within or
near an area where the apparatus can or might be
exposed to any substances that will or might attach any
part of the apparatus, causing the apparatus NOT to per-
form as designed and approved.
Be careful not to drop cylinder or bump valve knob. An
unsecured cylinder can become an airborne projectile
under its own pressure if the valve is opened even
slightly. Failure to follow this warning can result in
serious personal injury or death.
Do not store the apparatus with an empty or partly filled
cylinder. Always install a fully-charged cylinder so that the
apparatus is ready for use. Complete Inspection and
Cleaning and Disinfecting Procedures are outlined in this
manual. Ensure the complete apparatus is clean and dry.
Ensure the facepiece head harness adjustment straps are
fully extended. Place the complete apparatus in the stor-
age case or suitable storage location so it can be easily
reached for emergency use.
12
CAUTION
CAUTION
TAL 5010 (L) Rev. 3 - 10037469