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.
NOTE:
The National Institute for Occupational Safety and Health
(NIOSH) did not approve the interconnection of apparatus using
"Buddy Breathers" or EBSS prior to NFPA 2013-edition standard units,
and interconnection of pre-2013 edition SCBAs with EBSS type
accessories results in non-approved NIOSH configurations.
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.
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 end of service life (EOSTI)
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.
6.
Not suitable for connection in a CBRN environment.
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.
Operation and Use of the ExtendAire II Intermediate Pressure
Accessory Kit
•
Follow the procedure below to connect and disconnect the
Emergency Breathing System hardware. Individual
development of operating procedures and sufficient training is
required to use this equipment in actual emergency conditions.
•
DO NOT use the Quick-Fill System, URC Assembly, or ExtendAire
System accessories if there is any possibility that the
environment contains a CBRN warfare agent. These air mask
accessories are not approved for use in atmospheres containing
CBRN warfare agents.
•
DO NOT use emergency breathing support equipment if the
donor’s audible alarm is ringing. Using the system at this time
can result in both users running out of air during escape.
Failure to follow these warnings can result in serious personal injury
or death.
Table of Contents
General Information ...............................................................................2
Cautions and Limitations.......................................................................2
Inspection Before Use...........................................................................2
Operation and Use.................................................................................2
Installing the ExtendAire II ....................................................................4
Repair and Service ................................................................................7
Replacement Kits...................................................................................8
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WARNING
MSA 419 (L) Rev. 5 - 10110648
ExtendAire II Intermediate Pressure Accessory Kit
2
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WARNING
