Cessna 177 SERIES Service Manual

FUEL SHUT-OFF
VALVE
FUEL
SELECTOR
VALVE
x
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12 6 13
1.
Housing
7. Washer
12. Nipple
2. Roll Pin
8. Cam
13. Plug
3. Spring
9. Bushing
14. Body
4. Ball
10.
Gasket
15.
Cover
5. Screw
11. Retainer
16. Rotor
6. O-Ring
17. Seal
Figure
12-6.
Fuel Selector
Valve
and Shut-Off
Valve
NOTE
f. Using
a new
gasket between
filter
screen
and
top
assembly,
install
screen
and
standpipe.
Tighten
The
fuel
strainer
can be
disassembled,
clean-
standpipe
only
finger
tight.
ed
and
reassembled
without
removing
the
as-
g.
Using
all new
O-rings,
install
bowl.
Note
that
sembly
from
the
aircraft.
(Refer
to paragraph
step-washer
at bottom
of bowl
is installed
so that
12-34.)
step
seats
against
0-ring.
'
Connect
strainer
drain
tube.
12-34.
DISASSEMBLY
AND
ASSEMBLY.
(See figure
h.
Push
shut-off
valve
control
knob
to
"ON"
posi-
12-7.)
tion.
close
strainer
drain
and
check
for
leaks
and
a.
Remove
safety
wire from
shut-off
valve
control
proper
operation.
Torque
bottom
nut
to 25-30
lb-in.
|
knob
and pull
control
to "OFF"
position.
i.
Safety
wire
bottom
nut
to top
assembly.
Wire
b. Drain
fuel
from
strainer
with
quick-drain
con-
must
have
right
hand
wrap,
at
least
45 degrees.
trol.
(Observe
precautions
in paragraph
12-3.)
j. Safety
wire
shut-off
valve
knob
to its
mounting
c.
Disconnect
strainer
drain
tube
and remove
bracket
with
.018 inch
diameter
mild
steel
safety
safety
wire.
nut
and
washer
at
bottom
of filter
wire.
bowl
and remove
bowl.
d.
Carefully
unscrew
standpipe
and remove.
12-35.
REMOVAL
AND
INSTALLATION.
e.
Remove
filter screen
and
gasket.
Wash
filter
a. Remove
safety
wire
from
shut-off
valve
control
screen
and
bowl
in solvent
(Federal
Specification
knob
and
pull
control
to
"OFF"
position.
P-S-661.
or
equivalent)
and
dry
with compressed
b. Drain
fuel
from
strainer
with
quick-drain
con-
air.
trol.
Change
1
12-13

Cessna 177 SERIES Specifications

General

Manufacturer	Cessna
Engine Type	Piston
Wingspan	35 ft 6 in (10.82 m)
Seating Capacity	4
Number Built	4, 295
Engine	Lycoming O-360
Horsepower	180 hp
Maximum Takeoff Weight	2, 500 lb (1, 134 kg)