TM 3-4240-212-14&P
c.
Starting Apparatus Using Quick-Starting Canister.
the facepiece can be donned separately.
(2) Don facepiece (as follows) and pull hood back
(1) Follow the same procedures listed for the
overhead.
standard container in para 2-3 b (1) through (6). Heed the
(a) Grasp facepiece between thumb and
same warning and note
fingers, insert chin, and push head harness over the top of
(2) Set timer to desired minutes not to exceed 45
the head gently. Do not stretch head harness more than
minutes. When setting the timer, consider time required
necessary.
by user to return to fresh air, plus time required by user to
(b) Make sure that head harness straps lie
decontaminate equipment before removing mask.
(3) Remove cotter pin from candle-starting
flat against head and that the harness pad is centered on
mechanism by pulling the cover that is attached to the
back of head.
lanyard.
(c) Adjust harness straps so that facepiece
WARNING
fits snugly and comfortably against face.
(d) Place hand around housing clamp.
Do not touch the bottom of quickstarting
canister with bare hands after starting
Wiggle the facepiece from side to side, causing the
apparatus. It will be hot.
rubber to sit more tightly against the face. Take up
(4) Smoke may come from the facepiece when
looseness by readjusting the straps. Start at the bottom
the candle begins to function. Allow the smoke to
and work upward.
dissipate before donning facepiece
(3) Close inhalation (right-hand) breathing tube
(5) Insure that breathing bag inflates. Sufficient
by squeezing it firmly, depress stem of pressure relief
oxygen is generated within a few seconds to supply the
valve, and inhale deeply.
user with oxygen until exhaled breath starts normal
(4) Release breathing tube and stem of pressure
functioning.
relief valve and exhale.
(6) Don apparatus (para 2-4).
(5) Repeat steps (3) and (4) above until breathing
bag is fully inflated.
(6) Deflate breathing bag by depressing stem of
2-4.
pressure relief valve and pressing on bag.
a. Unfasten chest straps and straighten shoulder
(7) Feel bottom of canister. If it is warm, inflate
straps.
breathing bag for use by following steps (3) through (5)
b. Put arms through shoulder straps and raise
above. If it is not warm, repeat steps (3) through (6)
apparatus onto back by the shoulder straps.
above until canister becomes warm.
c. Fasten chest straps around body by inserting
WARNING
hook on one strap into eyelet of the other strap.
Do not use canister after initial preset time has
d. Adjust shoulder and chest straps to h6ld
elapsed. Once the oxygen starts generating in
apparatus securely on back. The backplate pad should
the canister, it will continue as long as moisture
rest against small of back.
and carbon dioxide are in the canister or until
e. Grasp facepiece between thumb and fingers,
the oxygen-producing chemical is expended,
insert chin, and gently push head harness over top of
even if the apparatus is not being worn. The
head. Adjust head harness straps so that facepiece fits
canister must be replaced before using the
snugly against face (para 3-3b through e).
apparatus again.
f. Close inhalation (right hand) breathing tube by
WARNING
squeezing it firmly. When this is done, the facepiece will
The timer works independently of the
collapse if it is fitted properly.
functioning of the apparatus, or the breathing
g. Pull hood over head and arrange cape of hood
rate of the wearer. Each user must learn from
over neck and shoulders.
personal experience the indications and feelings
h. If a seal is required, tape hood to clothing.
when a canister is no longer capable of
generating oxygen.
2-5.
Using Apparatus
(8) Set timer (clockwise) to desired minutes, not
to exceed 45 minutes. When setting timer, consider time
WARNING
required by user to return to fresh air and, if necessary, to
Make sure that apparatus is supplying oxygen
decontaminate equipment.
and that all its connections are tight before
(9) Remove facepiece.
entering an oxygen deficient area.
(10) Put on apparatus (para 2-4)
2-3
