Piper SENECA III - Page 248

SECTION
9
PIPER AIRCRAFT
CORPORATION
SUPPLEMENT 1
PA-34-220T,
SENECA
III
This portable
oxygen
system
provides
supplementary
oxygen
for the
crew
and
passengers
during
high
altitude
flights
(above
10,000
feet).
The
svstem
is
secured
to
the
middle
center
seat
with
the forward
facing seating
arrangement
and
mounted
between the
center
seats
with the club
seating
arrangement.
The
major
components
of
the
system
consist
of
two
console
cylinder
kits
and
six
oxygen
masks.
Each
console
is
equipped with
a
22
cubic
foot
oxygen
cylinder,
an
oxygen
supply
gauge,
an
ON-OFF
flow
control
knob
and
two
plug-in
receptacles.
Two
single
supply
line masks and
two
dual
supply
line masks,
which
utilize
dual
manifold
connectors,
are
provided
to
supply six
masks
with only
four
outlets.
Each
cylinder
is
enclosed
in
a
console
carrying
case
with
a
separate
supply
gauge
and
ON-OFF
flow
control knob
mounted onthe
sloped
face
of
each
unit. Two
plug-in outlets
are
mounted
below
the
gauge
and
control
knob
on
each
console.
The masks
for
the
rear
seats
are
stowed in the pockets
on
the
center
seats
and
all
other masks
are
stowed
in
the
consoles.
When
fully
charged,
each
cylinder
contains
oxygen
ata
pressure
of
1850
psi
at
70°F.
the
filler
port
is enclosed by
a
cover
at
the
rear
of
each
unit. If
high
altitude
flight is
anticipated,
it
should
be
determined
that
the
oxygen
supply
is
adequate
for
the
proposed
flight
and
that
the
passengers
are
briefed.
When
oxygen
is
required,
insert the mask
plug-in
connector
into
an
outlet
and
lock
by
rotating
the
connector
approximately
I 4
turn.
Don
mask(s)
and
rotate
the
ON-OFF control
knob
fully
counterclockwise
(approximately
two
full
turns).
Each
mask
assembly-
oxygen
line incorporates
a
flow
indicator. When
the
red
pellet
in the
indicator
disappears,
oxygen
is flowing
through
the
line
normally.
If
the
red
indicator
appears
in
any
of
the
lines
during,
a
period
when
oxygen
is
essential, the
airplane should
be
lowered
to
a
safe altitude
immediately.
Always
remove
fittings
from
the
oxygen
receptacles
and
stow
the masks
when
they
are
not
in
use.
Connect
only those
mask
assemblies
being used
to
prevent
oxygen
loss
through
an
unused
mask
assembly.
If
the
control
knob
is ON
and
the
fitting
is
in the
receptacle,
oxygen
will
flow
through the
mask
continuously.
If
a
dual
manifold
connector
is used, both
masks
must
be
donned.
Masks
may
be
damaged
if
they
are
not
properly stowed.
REPORT:
VB4110
ISSUED:
JANUARY
8,
1981
9-4,
2
of
6