head with #3 cord, cotton thread; also, make sure the
piercing pin can puncture the cylinder sealing cap.
(3) Secure the container flaps (fig. 4-2) with #3 cord,
cotton thread, and tie the thread with a surgeon's knot and a
(4) Wipe the mouth inflation valve (fig. 2-7) clean, and
carefully apply powdered graphite at the valve threads and
(5) Apply powdered graphite to cylinder valves (fig. 2-7)
that do not operate freely.
4-9. CO2. Cylinder
a. Removal and replacement. Refer
to figure 2-7 and
remove the CO2 cylinder from the cylinder valve by turning
the cylinder counterclockwise. Replace an unserviceable
cylinder with a serviceable like item.
b. Installation. Reverse the procedure in a above.
Replace rusty or broken hardware. Replace damaged
webbing, patch small tears, and restitch torn seams. For
replacement and repair instructions, refer to TM 10-269.
4-11. Flotation Cell
Replace defective flotation cells (fig. 1-4). To determine