Advertisement
ExtendAire II Intermediate Pressure Accessory Kit
Table of Contents
General Information...............................................................................2
Cautions and Limitations.......................................................................2
Inspection Before Use...........................................................................2
Operation and Use ................................................................................3
General Information
Two air masks with the ExtendAire II Intermediate Pressure
Accessory Kit (P/N 10105883) can share a common air supply
during emergency escape. The emergency breathing hose of the
ExtendAire II Intermediate Pressure Accessory Kit is also
compatible with other MSA emergency breathing system options
such as the ExtendAire Single Quick-Connect Fitting
(P/N 10031798) and the ExtendAire Double Quick-Connect
Fitting (P/N 10031797).
The ExtendAire II Intermediate Pressure Accessory Kit does not
transfill air between air masks.
Description
The ExtendAire II Intermediate Pressure Accessory Kit includes a
4 foot long emergency breathing hose which is stowed in a pouch
located on the left waist belt strap of the air mask. The hose is
connected to the first stage regulator and includes a manifold with
both male and female quick-disconnect fittings which may be
used to either supply or receive air.
The air mask is approved by the National Institute for
Occupational Safety and Health (NIOSH) without interconnecting
two users to one apparatus. NIOSH does not certify respirators
for use as "buddy breathers". Therefore, the attachment of a
donor's emergency breathing hose to a receiver's emergency
breathing hose voids the NIOSH/MSHA approval for both
apparatus.
" WARNING
Use this Emergency Breathing System for life
threatening emergencies and simulated training
exercises only. All other adequate means of escape
must be considered before using this device. Failure
to follow this warning can result in serious personal
injury or death.
Cautions and Limitations
1. When two (2) persons are sharing a single air supply, the
service time is reduced approximately in half. Before
connecting two air masks, make sure that the air supply is
sufficient for both users to escape; otherwise do not use the
system.
2. Do not use the system if the donor's audible alarm is ringing.
3. Do not connect the emergency breathing hose to more than
one other air mask at a time.
4. Exercise extreme care while connected together. Mobility and
range of motion will be limited when donor's and receiver's
apparatus are connected.
5. Maintain slack in the air lines during maneuvering and while
connected together. Do not pull on the hoses.
MSA 015 (L) Rev. 1 - 10110648
Repair and Service................................................................................7
Replacement Kits...................................................................................8
Note: If the preceding measures cannot be followed or if greater
escape protection is desired, use the Quick-Fill ® System. It
maintains approval while transfilling and does not exhibit the
above hazards.
Inspection Before Use
1. Emergency Breathing Hose
a. Inspect the hose connections to the PR14 ® First Stage
Regulator and the hose manifold. Ensure that the hose is
properly secured and that the manifold is able to rotate
around the hose fitting.
b. Inspect the pressure relief valve. Ensure that the relief
holes are clear and free of debris or other contaminants.
Ensure that the pressure relief valve is properly secured to
the hose manifold.
c. Inspect the dust cover. Ensure that it is securely attached
to the male and female quick-connect fittings. Verify that
the dust cover is securely attached to the emergency
breathing hose.
d. Ensure that the emergency breathing hose is coiled in the
pouch such that it is not twisted. Position the manifold end
of the hose toward the flap opening to ensure that it is
accessible in an emergency breathing situation.
2. Pouch
a. Inspect the pouch for cuts, tears, abrasions, or signs of
damage due to heat or chemical exposure. Verify that it
can securely stow and protect the emergency breathing
hose. Verify that the pouch is securely attached to the
carrier and harness.
b. Verify that all of the snaps on the pouch flap are in place
and securely fastened.
3. Hose Restraint
a. Inspect the hose restraint for cuts, tears, abrasions, or
signs of damage due to heat or chemical exposure. Verify
that the hose restraint is securely attached to the
emergency breathing hose and to the backplate.
2
Advertisement
