Cessna 182 1978 - Fuel Filler Cap - Metal

MODEL
182
& T182
SERIES
SERVICE
MANUAL
1.
Handle
2.
Fuel
Cap
Body
3. O-Ring NOTE
4.
Check
Valve
(Vent)
5.
Umbrella
Vent
safety
valve (4) opens
at or before
6.
Fuel Cap Lock
Plate
16
.25
PSI vacuum
pressure,
and 5. 0
PSI
7.
Washer
2
positive
pressure.
8. Adapter
Assembly
9. Placard
10.
Nut
3
11.
Safety
Chain
12. Lug
13. O-Ring
14.
Stem
15.
Spring
16.
Split
Washer
17.
Handle
Pin
14
6
13
NOTE
A
letter M on
the fuel cap
body located
un-
der
the handle (1), signifies
that the O-ring
(3)
mounting
groove
is
machined.
Figure 12-5.
Fuel Filler Cap - Metal
(Sheet 1 of 2)
e.
If the umbrella
continues
to leak or
is deterio-
e.
Place lock
plate (6) on
threaded end
of stem
(14)
rated
it must be
replaced.
and
align all three
lugs (12) with three
guide bosses
f.
To remove
umbrella,
lubricate
the umbrella
on the cap
body (2).
stem with
(MIL-H-5606)
hydraulic fluid
to prevent
f. Check
that square hole
in bottom of
lock plate
tearing
the stem.
(6) is aligned with
square surface on threaded
end of
g.
To replace the
umbrella,
lubricate the umbrella
stem (14).
stem with
(MIL-H-5606)
hydraulic
fluid
and use
a
NOTE
small
blunt tool to insert
the retaining knob
on the
umbrella
stem into the
check valve
body to
prevent
It is possible
to install
the lock plate
(6)
damaging
the stem.
180°
out of the
desired
position, if
the align-
ment
procedures in steps
"d" and "f" are
12-16.
REASSEMBLY.
not
followed.
If the
cap will
not fit when
as-
a.
Place split
washer
(16) in
cap well
correctly.
sembled,
remove
the
lock plate
(6) and
re-
b. With
handle
(1)
and O-ring
installed
on
stem (14).
assemble
after
rotating
it 180°.
insert
stem (14) through
split washer (16) on
cap
body
(2).
g. Compress
the
lock plate
(6)
and fuel
cap body
(2)
c.
Place
spring
(15)
on stem
(14).
and
secure
with
washer
(7) and
nut
(10).
d.
Position
cap handle
(1)
to full
"OPEN"
position.
h. Connect
fuel
cap assembly
to safety
chain
(11) and
reinstall in tank.
12-13