Packing Procedures

TM-5-4220-201-12 Life Preserver Underarm Parachutist Type B-7 Coinflated FSN 4220- 657-2197 Manual
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TM 5-4220-201-12

b. Check the mouth inflation valve (fig. 2-7) to insure

that threads are not damaged and that there are no

obstructions in the valve opening.

c. Insert the cylinder into the cylinder valve on the

deflated flotation cell (fig. 4-3) and tighten firmly by hand.

Make sure the valve stem gaskets are serviceable and the

valve stem is tight. On life preservers having a set screw,

be sure the set screw is tightened.

d. Make a safety tie on the valve discharge lever (fig. 4-

1) with one turn #3 cord cotton thread, using a surgeon's

knot and a locking knot.

e. Slide the cylinder into the cylinder pocket (fig. 1-5).

Be sure each cell marked "left" or 'Fright" is matched with a

container having the same marking.

f. Adjust the mouth inflation valve to the closed position

and insert the valve into the valve retaining sleeve (fig. 4-4).

g. Hook the container snap through the flotation cell

h. Fold the cell to a size equal to that of the cell

container; begin at the narrower section of the cell. Pack

the folded cell into the container.

i. Close the container bottom (fig. 4-6) and top (fig. 4-

7) flaps and tie with one turn of #3 cord cotton thread, using

surgeon's knot and a locking knot.

4-17

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