Cessna 182 1978 - Description; Inspection;Test of Oxygen; Installation of Pilot And;Or Copilot Outlet Valve Assembly; Outlet Valve Assemblies

MODEL 182 &
T182 SERIES SERVICE
MANUAL
passenger oxygen outlet valve assembly.
A line is 14-40. REMOVAL
OF PILOT AND/OR COPILOT
routed
from the cross to a tee, located at the aft end
OUTLET VALVE ASSEMBLY. (See
figure 14-3.)
of the overhead console. Two lines are routed from
the tee. one
to the pilot's oxygen outlet valve assem-
NOTE
bly. and one to the copilot's oxygen outlet valve
assembly, both installed in the overhead console. Ensure oxygen control is OFF.
14-35.
REMOVAL AND
INSTALLATION.
(See
a. Remove overhead
console.
figure 14-3.) Assure
that the oxygen control is b. Disconnect
oxygen line at rear of outlet valve
off.
Access to the various
lines is gained
by re-
assembly; cap
oxygen line.
moving the cabin
headliner and/or
appropriate
c.
Remove nut (25).
upholstery side panels,
depending on
line location.
d. Remove outlet
valve assembly.
Removal and installation procedures for cabin head-
liner
and upholstery side panels are outlined in
14-41. INSTALLATION OF PILOT
AND/OR
Section 3 of this manual. Lines
are secured by COPILOT OUTLET
VALVE ASSEMBLY. (See
clamps and/or
nylon ties. Whenever ties are
re- figure 14-3.)
moved, replace with new ties. a. Install outlet valve assembly in mounting hole
of
bracket
(37).
NOTE
b. Install and tighten
nut (25).
c. Uncap
and install oxygen line
at rear of outlet
Observe
all cautions, warnings, precautions
valve assembly.
and procedures outlined
in paragraph 14-20
d. Turn
oxygen control ON and
test connection for
when removing or installing oxygen lines, leaks.
e. Install overhead console.
14-36. OUTLET VALVE ASSEMBLIES. (See figure
14-3.) 14-42. INSPECTION/TEST OF OXYGEN OUTLET
VALVE ASSEMBLIES.
14-37. DESCRIPTION. The pilot and copilot outlet a. Assure that oxygen system is fully charged.
valve assemblies are mounted in the overhead con- b. Insert an oxygen outlet adapter, connected to a
sole. Passenger outlet valve assemblies are mounted pressure gage, into the oxygen outlet valve.
overhead and outboard of each passenger station. c. Test retainer assembly (27)/adapter junction for
leaks with
fluid leak detector.
No bubbles are per-
4-38. REMOVAL OF PASSENGER OUTLET VALVE mitted.
ASSEMBLY. (See figure
14-3.)
d. After
completion of leak
tests, fully charge
oxygen
system as outlined
in paragraph 14-23.
NOTE
14-43. OXYGEN
SYSTEM FUNCTIONAL
TEST.
Ensure oxygen
control
is OFF.
NOTE
a. Remove lock ring (20) and cover (21).
b. Remove
window moulding (22).
Whenever the
oxygen system regulator
c. Remove cabin headliner as outlined in Section 3 (cylinder-regulator assembly) has been
of this manual.
replaced or
overhauled. perform
a flow
d. Remove nut
(23).
test to determine
that system functions
e. Remove bracket
(24).
properly.
f. Disconnect
oxygen line from
outlet valve assem-
bly. and cap
line.
a. Fully charge the
oxygen system as outlined
in
g. Remove
nut (25).
paragraph 14.23.
h.
Remove outlet valve assembly.
b. Install an
oxygen outlet adapter
into a pressure
gage (calibrated
in one
pound increments
from 0 to
14-39. INSTALLATION
OF PASSENGER OUTLET
100 PSIG)
and insert adapter into
pilot's oxygen out-
VALVE ASSEMBLY. (See
figure 14-3.)
let valve assembly.
a. Install nut (25) on
threads of outlet valve
assem- c. Turn
oxygen system ON.
Pressure should be
bly.
and install outlet valve
assembly in mounting
70±10 PSIG.
If pressure does not
fall within these
hole of
retainer (26): tighten nut
(25).
tolerance,, replace
cylinder-regulator
and repeat
b.
Uncap and
connect oxygen
line to outlet
valve
test.
assembly.
d. Recharge oxygen
system as required
as outlined
c. Install bracket
(24).
in paragraph 14-23.
d. Install and tighten nut (23).
e. Turn oxygen
control ON and
test connection for
14-44. OXYGEN
GAGE. (See figure
14-3.)
leaks.
f.
Install cabin headliner
as outlined in Section
3 14-45. DESCRIPTION.
The oxygen
gage is located
of this manual.
on the right-hand
side of the overhead
console.
The
g. Install window
moulding.
oxygen gage is calibrated from 0 to 2000
PSI.
h. Install cover
(21) and lock
ring (20).
14-15