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HOW TO TEST YOUR FLOTATION DEVICE USING THE ORAL INFLATOR
Always test your flotation device in a safe manner, under controlled
conditions, where help is readily available.
You will not need any spare parts, or re-arming kits, to test your
inflatable flotation device with oral inflation, and it gives you the
opportunity to learn about how much inflation is needed to float you.
O1.
Remove the CO
could potentially damage the flotation device. Inspect the cylinder
to confirm it is unused (Fig. 12). Unscrew and remove the cap and
the bobbin (for MD4042 only). Otherwise the bobbin will
disintegrate during water immersion.
O2.
Put on flotation device. Locate and release the oral tube from
its cover.
O3.
Get into shallow water, just deep enough that you can stand with
your head above the surface.
O4.
To learn how much inflation is needed to float you, blow a full
breath into the oral tube and then try lifting your feet from the
bottom to see if your airway stays clear of the water. If not, try
adding another breath and lifting your feet, and then another if
needed and so forth so that you are supported well enough to be
able to complete inflation without touching bottom or treading
water. There may be situations where you wish to wear your device
partially inflated (see "Using Your Device in Cold Temperatures,"
page 5). However, when you are immersed in the water, your
device must be fully inflated to function as designed and approved.
O5.
Remember: as your breath air cools down, it contracts in volume.
You may require more topping up breaths to maintain this level.
This level of inflation may also be useful in cold conditions where
inflation could be delayed.
O6.
Then see if the turning characteristics of the flotation device are
different with this level of flotation, as they most likely will be.
O7.
Fully inflate the flotation device using the oral inflator.
O8.
See if the flotation device will float you on your back or just slightly
back of vertical. In a relaxed floating position, verify that your
mouth is well above the water's surface. Note the effect of where
you hold your legs on how you float.
Get out of the water and remove the flotation device. Completely
O9.
deflate the flotation device using the oral inflator (see "Deflating,"
page 9).
O10.
Let the flotation device dry thoroughly. Rearm and Repack the
flotation device (see "Re-arming," page 10 for MD4041 or page 12
for MD4042; see "Repacking," page 14).
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cylinder to prevent inadvertent inflation, which
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