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Mounted
Container
STEP 1
STEP 2
A25-1031
Volume 2
08-01-13
REV 2
OXYGEN AND EMERGENCY EQUIPMENT
Volume 2 Flight Crew Operating Manual Sep 13/2004
08-01-14 CSP 100-6 REV 1
EMERGENCY EQUIPMENT (Cont)
PROTECTIVE BREATHING EQUIPMENT (Cont)
3. Place both hands inside the neckseal opening with palms facing each other
and PBE visor facing downward with the oxygen generating canister resting
on the tip of the hands.
4. With the top of the head bent forward, guide the PBE neckseal
over the top of the head and down over the face using
the hands to shield the face and glasses from the oronasal
mask cone.
5. With both hands, grasp the adjustment straps at the lower corners of the
visor and pull outward sharply to actuate the starter candle. Within 1-5 seconds,
a rushing noise of oxygen entering the hood will be heard and inflation
will be evident
.
Human hair is highly flammable. Hair that protrudes through
the neckseal could ignite if brought into direct contact with
flame.
6. With the straps still in hand and head bent forward, pull backward to secure
the oronasal mask cone high on the nose for a tight seal.
STEP 3
STEP 4
STEP 5
WARNING
STEP 6
OXYGEN AND EMERGENCY EQUIPMENT
Sep 13/2004 Flight Crew Operating Manual Volume 2
REV 1 CSP 100-6 08-01-15
EMERGENCY EQUIPMENT (Cont)
PROTECTIVE BREATHING EQUIPMENT (Cont)
7. If wearing glasses, you may adjust their position to rest on the tip of the oronasal
mask cone by moving the sides of the frame through the hood fabric.
Do not attempt to adjust through the neckseal as this will result in infiltration
of the surrounding atmosphere into the interior of the hood.
8. When the neckseal is positioned at the neck and the oxygen generating canister
is resting on the nape of the neck, remove the hands, checking to see
that clothing is not trapped in the seal and hair does not protrude between
the seal and the neck. Pull the protective neck shield down to cover the collar
and upper shoulder area.
Following actuation, the hood will inflate over a 15-20 second period. After this period, the starter candle will cease flowing
and the only sound will be a slight rustling of the fabric on each inhalation and exhalation. Dependent upon breathing rate,
there will be a slight exhalation resistance as the exhaled breath is forced through the oxygen generating canister. Inhalation
resistance will be almost unrecognizable since inhalation is directly from the interior of the hood through a diaphragm type
check valve located at the base of the oronasal mask. The visor should remain clear of fogging or misting. Heat is produced
by both the chemical air regeneration process and transfer of body heat during the rebreathing cycle. Heat build-up within
the hood is normal and is dependent upon the amount of work performed. There should be no irritating or strong unusual
odors within the hood. Operational duration is variable dependent upon the amount of work performed by the user.
If the PBE is worn to exhaustion of the chemical regeneration system, this will be evidenced by a gradual reduction in the
expended volume of the hood until the point that the hood is collapsed tightly around the head at the end of a full inhalation.
Additionally, there will be a rapid buildup of heat and moisture in the hood as the canister loses its effectiveness. At this
point, the wearer should immediately retire to a safe breathing area clear of flame and toxic fumes and remove the device.
Removing the PBE
1. Go to a safe area away from immediate contact with fire or open flame and/or toxic fumes.
2. With both hands, reach for the two lower corners of the visor area and push forward on the metal tabs of the adjustment
strap buckles to release the strap tension.
3. Place both hands under the neckseal in the forward area and pull up, guiding the oronasal cone and neckseal over
the face/glasses until the PBE is clear of the head.
4. Place the expended PBE in a safe place to cool away from fire or exposure to water.
Disposal
The expended PBE still contains unreacted oxidizing material and strong alkali materials. At the completion of flight, it
must be turned over to maintenance for authorized disposal.
STEP 7
STEP 8
OXYGEN AND EMERGENCY EQUIPMENT
Volume 2 Flight Crew Operating Manual Sep 13/2004
08-01-16 CSP 100-6 REV 1
EMERGENCY EQUIPMENT (Cont)
ABNORMAL CONDITION OF OPERATION
This device produces oxygen which will vigorously accelerate combustion. Do not intentionally expose
the device to direct flame contact, or remove in the immediate presence of fire or flame. Due to
oxygen saturation of the hair, do not smoke or become exposed to fire or flame immediately after removing.
　
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