9
4.
Automatic Backup Inflation (MD2953)
Inflation will occur automatically within 10 seconds after the
inflator is immersed in water. The water-sensing bobbin will
disintegrate, triggering a spring-loaded plunger, which punctures
the CO
2
cylinder (Fig. 16) to inflate the Inflatable PFD.
INFORMATION
When inflated, the carbon dioxide
(CO
2
gas) used to inflate the
PFD will slowly escape through
the fabric over time. A slight
reduction of pressure will be
observed after several hours
of inflation. Topping up by oral
inflation may be required in
the event of very prolonged
immersion.
IMPORTANT: SEE SPECIAL
CONSIDERATIONS FOR AUTOMATIC
DEVICES (P. 10)
5.
Oral Inflation
Properly armed and inspected Inflatable PFDs will inflate when
manually or automatically activated. However, you can fully inflate
the Inflatable PFD by mouth (Fig. 10) should inflation not occur,
or if you are in a non-emergency situation. To orally inflate the
Inflatable PFD, first locate the oral inflation tube by opening the
wearer ’s left front panel of the Inflatable PFD. Remove the dust
cap from the end of the oral tube and blow into the tube until the
Inflatable PFD is fully inflated.
Place the oral inflator dust cap back in the stowed position
(Fig. 12)
IMPORTANT: DOUBLE INFLATION
DO NOT MANUALLY OR AUTOMATICALLY ACTIVATE THE INFLATOR WHEN YOUR PFD IS
FILLED WITH AIR. DOING SO WILL RESULT IN EXCESSIVELY HIGH PRESSURE WITHIN
THE INFLATION CHAMBER, WHICH MAY CAUSE PERMANENT DAMAGE.
Fig. 10
