Cessna 172N - Page 155

CESSNA
MODEL 172N
SECTION
8
HANDLING,
SERVICE
&
MAINTENANCE
quired
within the curing
period,
it is recommended that the
work be
done
by
someone
experienced in handling uncured
paint.
Any
Cessna
Dealer
can accomplish this
work.
Generally,
the
painted
surfaces can
be kept
bright by
washing with
water and mild
soap,
followed by a rinse with water and drying
with cloths
or
a chamois.
Harsh or abrasive
soaps
or detergents
which
cause corro-
sion
or
scratches
should
never be used.
Remove
stubborn
oil
and
grease
with a cloth moistened
with
Stoddard
solvent.
Waxing is unnecessary to keep the
painted
surfaces
bright. However,
if desired, the
airplane may be waxed with a
good
automotive
wax.
A
heavier coating of
wur
on
the
leadirg edges of the
wings
and tail and on
the engine nose
cap
and
propeller
spinner
will help reduce
the abrasion
encountered
in
these
areas.
When the
airpLane
is
parked
outside in
cold
climates and it is neces-
sary
to remove
ice before
flight,
care
should
be
taken to
protect
the
paint-
ed
surfaces during ice removal
with
chemical liquids. A 50-50
solution
of
isopropyl alcohol
and water will satisfactorily
remove ice
accumulations
without
damaging
the
paint.
A
solution with
more than
50Vo alcohol
is
harmful and
should be
avoided. While
applying
the de-icing solution,
keep
it away from the
windshield
and
cabin windows
since
the alcohol
will attack
the
plastic
and may
cause
it to
craze.
PR,OPEttER,
CAR.E
Preflight
inspection of
propeller
blades for
nicks, and wiping them
occasionally
with
an oily cloth
to
clean off
grass
and bug
stains
will
as-
sure long,
trouble-free
service.
Small
nicks on the
propeller, particu-
Iarly
near
the
tips
and on
the leading edges,
should
be
dressed
out as
soon
as
possible
since
these
nicks
produce
stress concentrations,
and
if
ignored, may result
in cracks. Never
use an alkaline
cleaner
on
the
blades; remove
grease
and dirt with
carbon tetrachloride or
Stoddard
solvent.
ENGINE CARE
The
engine may
be cleaned with
Stoddard solvent, or equivalent, then
dried thoroughly.
Particular care
should
be
given
to electrical
equipment
before
cleaning.
Cleaning
fluids
should not be allowed
to enter
magnetos,
starter, alternator and
the
like.
Protect
these components before
safurating
the engine
CAUTION
8-13