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MODEL 182 & T182 SERIES SERVICE MANUAL
a.
Wrap a piece of No. 320 (or finer) sandpaper or
each side of surface, and inserting small bolts
abrasive cloth around a rubber pad or a wooden
through wood and plastic.
A cushion of sheet rubber
block.
Rub surface around scratch with a circular
or aircraft fabric should be placed between wood and
motion, keeping abrasive constantly wet with clean
plastic on both sides.
water to prevent scratching surface further. Use
minimum pressure and cover an area large enough
3-25.
CABIN DOORS.
(See figure 3-3.)
to prevent formation of "bull's eyes" or other optical
distortions.
3-26.
REMOVAL AND INSTALLATION.
Removal of
hinge pins, attaching hinges and door stops.
If per-
Do not use a coarse grade of abrasive.
manent hinge pins are removed, they may be replaced
Number 320 is of maximum coarseness,
with clevis pins, secured with cotter pins, or new
hinge pins may be installed by inserting pin through
b.
Continue sanding operation, using progressively
both hinge halves, and chucking a rivet set in a hand
finer grade abrasives until scratches disappear.
drill, hold one end of pin and form a head on opposite
c.
When scratches have been removed, wash area
end.
Reverse pin and repeat process.
When fitting a
thoroughly with clean water to remove all gritty
new door that is not bonded, some trimming of door
particles.
The entire sanded area will be clouded
skin at edges, and some reforming with a soft mallet
with minute scratches, which must be removed to
may be necessary to achieve a good fit. Reforming
restore transparency.
of bonded door flange by striking with a soft mallet,
d.
Apply fresh tallow or buffing compound to a
etc. is NOT permissible, due to possible damage to
motor-driven buffing wheel.
Hold wheel against
bonded areas.
plastic surface, moving it constantly over damaged
area until cloudy appearance disappears.
A 2000-
3-27.
CABIN DOOR WEATHERSTRIP.
A hollow,
foot-per-minute surface speed is recommended to
fluted-type, rubber weatherstrip is cemented around
prevent overheating and distortion.
(Example: 750
all edges of the cabin door. When replacing weather-
rpm polishing machine with a 10-inch buffing bonnet.)
strip, ensure that contact surfaces are clean and dry.
Cut new weatherstrip to length using old weatherstrip
NOTE
as a guide.
Cut small notch in butt ends of new wea-
therstrip to allow for drainage.
Position splice with
Polishing can be accomplished by hand, but
notch at door low point and apply a thin, even coat of
will require a considerably longer period of
EC-1300L adhesive (3-M Company) or equivalent to
time to attain the same result as produced
both surfaces. Allow to dry until tacky before press-
by a buffing wheel.
ing into place on door. Do not stretch weatherstrip
around door corners.
e.
When buffing is finished, wash area thoroughly,
and dry with a soft, flannel cloth.
Allow surface to
3-28. WEDGES.
Thru 18267715, wedges are instal-
cool, and inspect area, to determine if full trans-
led at the upper forward edge of the door to aid in pre-
parency has been restored.
Apply a thin coat of
venting air leaks at this point.
Several attaching holes
hard wax, and polish surface lightly with a clean
are located in the wedges.
Holes giving best results
flannel cloth.
should be selected.
NOTE
3-29.
DOOR LATCHES.
(Thru 18267715.)
(See
figure 3-4.)
Rubbing plastic surface with a dry cloth
will build up an electrostatic charge
3-30. DESCRIPTION.
The cabin door latch is a push-
which attracts dirt particles, and may
pull bolt type, utilizing a rotary clutch for positive
eventually cause scratching of surface.
bolt engagement.
As the door is closed, teeth on un-
After wax has hardened, dissipate this
derside of bolt engage teeth on clutch.
The clutch
charge by rubbing surface with a slightly
gear rotates in one direction only and holds door un-
damp chamois cloth.
This will also re-
til handle is moved to LOCK position, driving bolt
move dust particles which have collected
into slot.
while wax is hardening.
3-31.
ADJUSTMENT.
Vertical adjustment of the ro-
f.
Minute hairline scratches can often be removed
tary clutch is afforded by slotted holes which ensures
by rubbing with commercial automobile body cleaner,
sufficient gear-to-bolt engagement, and proper align-
or fine-grade rubbing compound.
Apply with a soft,
ment.
The extension or retraction of the bolt (2) is
clean, dry cloth or imitation chamois.
controlled by adjusting bolts (10) in the slotted holes.
Loosen screws sufficiently to move latch base forward
3-24.
CRACKS.
(See figure 3-1.)
on the door to retract bolt, and aft to extend bolt.
a.
When a crack appears, drill a hole at end of
crack to prevent further spreading.
Hole should be
approximately 1/8-inch in diameter, depending on
length of crack and thickness of material.
b.
Temporary repairs to flat surfaces can be
accomplished by placing a thin strip of wood over
Revision 1
3-5
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