Figure 8-9.Donning the facepiece (six-strap model).
cylinder, and grasp the cylinder control valve
with the left hand. This action allows the left
hand to open the cylinder control valve and to
help boost the cylinder toward the back.
3. Continue the swinging movement; bring the
right hand and arm over the head and place the
wide shoulder strap on the right shoulder. Boost
the cylinder into position on the back as shown.
4. Release the main line of the shoulder takeup
strap from the right hand but hold firmly to the
loop end. Pull down and out on the loop end to
tighten the harness to fit the body.
5. Fully open the cylinder control valve before it
has been released by the left hand.
6. Reach behind the body with the right hand and
secure the waist strap hanging from the lower
part of the cylinder. Bring this waist strap
around the waist from the right side and snap it
into the ring just below the demand regulator
7. With the right hand, pull to the right and out on
the loop end of the waist strap to tighten. The
equipment is now in the standby position, and
the facepiece may be applied to the head any
time before entering the contaminated area.
8. Donning the facepiece is the same as has been
described (fig. 8-9). The facepiece will not yet
have been connected to the equipment.
9. The breathing tube can be connected to the
demand regulator any time the wearer desires,
usually just before entering the contaminated
area to conserve the cylinder supply. As long as