7-8
NOTE
For
safety
reasons,
no
smoking should
be
allowed
in the
aircraft
while oxygen
is
being used.
When
ready
to use the oxygen
system, proceed as
follows:
(1)
Select mask and hose.
NOTE
The hose provided
for
the pilot
is
of
a higher
flow
rate
than those for the
passengers; it is color-coded
with an
orange band
adjacent to
the
plug-in fitting.
The
passen-
ger
hoses
are color-coded
with a
green
band.
If
the
air-~
craft
owner
prefers,
he
may provide higher
flow
hoses
for
all passengers.
In any
case, it is
recommended
that
the
pilot use the
larger
capacity hose. The
pilot's mask is
equipped with
a
microphone to
facilitate
use
of
the
radio
while using oxygen.
*
An
adapter
cord
is furnished
with
the microphone-equipped mask to mate the mask
micro-
phone lead to the
auxiliary
microphone
jack located
under
the
left
side
of
the
instrument panel.
To
connect the oxy-
gen mask microphone, connect the
mask lead
to the
adapter
cord and plug the cord into the
auxiliary
microphone
jack.
(In
aircraft
that are
equipped with the optional boom
micro-
phone,
it
will be
necessary
to
disconnect
the boom
micro-
phone lead
from
the
auxiliary
microphone
jack
so
that
the
adapter cord from
the oxygen mask microphone can
be
plugged into the
jack.)
A
switch
is incorporated
on
the
left
hand control wheel to
operate
the microphone.
(2)
Attach
mask
to face and adjust
metallic
nose
strap for
snug mask
fit.
(3)
Select
oxygen
outlet located
nearest
to the
seat
you
are
occupy-
ing, and plug
delivery
hose into
it.
When
the oxygen supply is
turned
on,
oxygen will flow continuously at the
proper rate
of flow
for
any
altitude
without any manual
adjustments.
(4)
Position
oxygen supply
control
knob
"ON."
(5)
Check
the
flow
indicator
in the
face mask
hose.
Oxygen
is flow-
ing if the
indicator is
being
forced
toward the mask.
(6)
Unplug
the
delivery
hose
from
the outlet coupling when
discontin-
uing
use
of
the oxygen
system.
This automatically
stops
the
flow of
oxygen.
(7)
Position oxygen supply
control
knob
"OFF."
Summary of Contents for 182 1973
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