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Page Title:
Automatic operation and examination |
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| MIL-I-24739A(SH)
4.6.2 Manual operation with the carbon dioxide filled cylinder. The manual activation device
shall not be secured to the body with copper shear wire during this inspection. A carbon dioxide
filled cylinder conforming to MlL-C-25369, type II, shall be fully installed in the inflation assembly
with hand tightening. The inflation assembly shall be examined to ensure that the top of the
cylinder has not been punctured with the point of the piercing pin by listening for the sound of
escaping gas. The carbon dioxide filled cylinder shall then be removed and the top of the cylinder
examined. Upon completion of the examination, the carbon dioxide cylinder shall be fully
reinstalled in the inflation assembly with hand tightening. The inflation assembly shall be held in
a vertical position with the cylinder at the top. The device shall be in its normal position and a
maximum load of 15 pounds shall be attached to the free end of the device. The load shall
operate the device through one normal cycle. The piercing pin shall advance to its maximum point
of travel and shall puncture the carbon dioxide filled cylinder. The CO2 cylinder shall be fully
discharged within seven (7) seconds after activation. The gas shall not pass through any part of the
inflation assembly into the atmosphere other than through the gas passages in the outlet. The
empty cylinder shall be removed and the top examined for the location of the puncture (see
3.5.2).
4.6.3 Repeated manual operation with the carbon dioxide filled cylinder. The manual
activation device shall not be secured to the body with copper shear wire during this inspection.
A carbon dioxide filled cylinder conforming to hKILC-25369, type II, shall be fully installed in the
inflation assembly with hand tightening. The inflation assembly shall be examined to ensure that
the top of the cylinder has not been punctured with the point of the piercing pin by listening for
the sound of escaping gas. The carbon dioxide filled cylinder shall then be removed and the top
of the cylinder examined. Upon completion of the examination, the carbon dioxide cylinder shall
be fully reinstalled in the inflation assembly with hand tightening. The inflation assembly shall be
held in a vertical position with the cylinder at the top. The device shall be in its normal position
and a maximum load of 15 pounds shall be attached to the free end of the device The load shall
operate the device through one normal cycle The piercing pin shall advance to its maximum point
of travel and shall puncture the carbon dioxide filled cylinder. The CO2 cylinder shall be fully
discharged within seven (7) seconds after activation. The gas shall not pass through any part of the
inflation assembly into the atmosphere other than through the gas passages in the outlet. The
empty cylinder shall be removed and the top examined for the location of the punctured Each
inflation device shall be capable of completing ten (10) consecutive manual operations (see 3.5.3).
4.6.4 Automatic operation and examination. A carbon dioxide filled cylinder conforming to
MIL-C-25369, type II, shall be fully installed in the inflation assembly with hand tightening. The
inflation assembly shall be immersed in water with a conductivity of 100 +50/-10 microsiemens
and temperature of 70 + 3 degrees Fahrenheit. The CO2 cylinder shall be punctured in a
maximum time of 3.0 seconds, the time being measured from the instant the inflation assembly is
fully immersed The test shall be terminated if 3.0 seconds is exceeded. The piercing pin shall
advance to its maximum point of travel and shall puncture the C02 filled cylinder. The CO2
cylinder shall be fully discharged within ten (10) seconds after immersion. The gas shall be
immediately released and the piercing pin shall not obstruct or retard the flow of the gas. The gas
shall not pass through any part of the inflation assembly other than the gas passages. The body of
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