Cessna 177 SERIES Service Manual

WOOD REINFORCEMENT
AA^
^-^
r
~\ ,»*-^s/y
A
/B
WOOD/'
CUSHION
OF
>
RIGHT
-
WRONG
ALWAYS DRILL END
OF CRACK
RUBBER
TO RELIEVE STRAIN
OR FABRIC
;
,
DD,
.:
SANDING
REPAIR
SOFT WIRE CEMENTED
LACING
FABRIC PATCH
TEMPORARY
REPAIR
OF CRACKS
Figure
3-1.
Repair of
Windshield
and Windows
iCAUTION/
NOTE
Do
not use a coarse grade
of abrasive. No.
Rubbing
plastic surface with
a dry cloth
320 is of maximum
coarseness,
will build
up an electrostatic
charge which
attracts dirt particles and may eventually
b. Continue sanding
operation, using progressively
cause scratching of surface.
After wax
finer grade
abrasives until
scratches disappear.
has hardened,
dissipate
this charge
by rub-
c. When scratches
have been removed,
wash area
bing surface with
a slightly damp chamois.
thoroughly with
clean water
to remove all gritty
par-
This will
also remove dust
particles which
tides. The entire
sanded area will
be clouded with
have collected
while wax is hardening.
minute
scratches which
must be removed to restore
transparency.
f. Minute hairline scratches
can often be removed
d. Apply fresh tallow or buffing
compound to a by rubbing with commercial
automobile body clean-
motor-driven buffing wheel.
Hold wheel against plas- er or fine-grade
rubbing compound. Apply with a
tic surface,
moving it constantly
over damaged area
soft, clean,
dry cloth or imitation
chamois.
until
cloudy appearance
disappears.
A 2000-foot-per-
minute surface speed
is recommended to prevent 3-8.
CRACKS. (Refer to figure 3-1.)
overheating and
distortion. (Example:
750 rpm a.
When a crack appears,
drill a hole at end
of
polishing
machine with a 10 inch buffing bonnet.)
crack to prevent further spreading. Hole
should be
approximately
1/8 inch in diameter,
depending
on
NOTE
length of crack and thickness of
material.
b. Temporary
repairs to
flat surfaces
can be
ac-
Polishing
can be accomplished
by hand but
complished by placing
a thin strip of wood
over each
will require a considerably longer
period side of surface and
inserting small bolts through
of time to attain the
same result as pro-
wood and
plastic. A cushion of
sheet rubber or air-
duced by a buffing wheel,
craft fabric should be
placed between wood and plas-
tic on both sides.
e. When
buffing is finished,
wash area thoroughly
c. A temporary
repair can be made on
a curved
and dry with a soft flannel cloth. Allow surface to surface by placing fabric patches over affected areas.
cool and inspect area to determine if full transpar- Secure patches with aircraft dope, Specification No.
ency has been restored. Apply a thin coat of hard MIL-D-5549: or lacquer, Specification No. MIL-L-
wax and polish surface lightly with a clean flannel 7178. Lacquer thinner, Specification No. MIL-T-
cloth.
6094
can also be used to secure patch.
3-2

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)