Raytheon Beech Baron E55 - Page 482

BEECHCRAFT
BARON
55
AND
58
SHOP
MANUAL
OXYGEN HIGH
PRESSURE TEST PROCEDURE
dirtphrapm
when
wiping
the
interior
of the f3f-
7
(TC-502
and
after,
TE-1 and
after,
TH-1
and
after)
cushion.
WARNING
c.
Wipe
the interior face
cushion
with
\oit
cotton
Keep
fire,
cigarettes
and
sparlrs
away
from
the
cloth
or
g~uze
pad dipped
in
the
cleaning
solution.
vicinity
of
the
oxygen
cylinder.
Hands,
clothing
d.
Using
distilled
water
and
a
soft
cotton
cloth
or
and
tools
should
be clean.
Oil
and
grease
will
pauze
pad,
wipe
the
areas
just
cleaned
to
remo\´•e
any
residue
ignite
upon
contact
with
pure oxygen
under
of
the
cleaning
solution.
pressure.
e.
Dry
the mask.
f.
Place the
mask in
plastic
ba~
a.
Check
to
make certain the
system
is
chareed
to
1500
psi
or
higher.
OXYGEN
SYSTEM
PURGING
b.
Make
sure
the
shut-off
valve
is off
(check
the
push-pull
knob).
c.
Observe the
pressure
gage;
there
should
be
no
WARNING
pressure
drop
in 2
hours.
d. If
the
leak
test
is
not
satisfactory,
use
leak
test
Do
not
use
ox~ren
intended
fur
mrdical
compound(lJ,
Consumable
Materials
Chart)
on
the
system
purposes,
or
such
industrial
usss as:
welding.
connections
until the leak
is
located.
Such
oxygen
may
contain
moisture
e.
Make the
necessary
repairs
and
repeat
step
iiC.’(
that
could
freeze
up
the valves and
lines
oi
the
f.
Wipe
the tested
areas
clean
and
dry,
oxygen
system.
When
filling
the
oxq-grn
s~´•stzm
use
only
MIL-0-27110
X~´•iator
s
Brc3thin´•
Oxygen
(17,
Consumable
;LZarcrials
Char~
OXYGEN MASK CLEANING
Section
(Puritan-Bennett
Constant
Flow
Mask)
a.
Prepare
a
cleaning
solution
by
mixing
one
ounce
of
The
oxygen
system
m~)´•
be
rid
of
obnoxious and
oif~r.sive
antiseptic
~64.
Consumable
~Iaterials
Chart,
Section
2I
(or
odors
by
pureing.
The
system
should
also
be
pur~ed
an!-
time
equivalent)
into
two
allons
of
warm
(no
hotter
than
140"
F.)
the
system
pressure
falls
below
50
psi
or
the lines
ha\´•e been
distilled
water.
left
open
for
a
period
of
time.
The
purging
operation
consists
of
nothing
more
than
connecting
a
recharping
cart
filler
hose
to
the
oxygen
filler
valve
and
allowing
oxygen
to
flow
NOTE
through
the
system
and
escape
at
the
outlets
awa~
the bad odors. The
following
steps
outline
the
procedure
for
Wear
Protective
gloves,
purging
the
oxygen
system.
a.
Connect
a
line
from
a
recharein´•
can
to
the
o~´•rn
CAUTION
filler valve.
b.
Slowly
open
the
o~ypen
supply.
Do
not
allow
any
of
the
cleaning
solution
to
enter
c.
Slowly
open
the
high
pressure
line
valve
on
the
the
reservoir
bag
or
the flow
indicator.
oxygen
control
console,
to
left
of
the
pilot.
d.
Plug
in
an
oxygen
mask
at
each outlet
in
the
cabin
b.
Using
a
soft
cotton
cloth
or
gauze
pad dipped
in
the and
cockpit.
cleaning
solution,
wipe
the
exterior
of
the
mask
facepiece,
e.
Open
all doors and
windows.
reservoir
bag,
flow
indicator
and the
oxygen
tubing.
f. Set
the
cart
pressure
regulator
to
deliver
50
p~i
to
the
system.
g.
Allow
system
to
purge
for
one
hour
and
chrc´•ic
:or
CAUTION
the
presence
of
odor.
If
the
odor is still
present
continue
purging
far
one
additional
hour.
If
the
odor is
still
presr~nt
Use
caution
not to
damage
the
dilution
valve
after
the second
hour
of
purging
replace
the:
supply
cviincfrr.
11-2
E10