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CESSNA
MODEL
172N
SECTION
8
HANDLING, SERVICE
& MAINTENANCE
down
the
tail
by
placing
sand-bags,
or suitable weights,
on each side
of
the
horizontal stabilizer,
next
to the
fuselage.
If groundanchors
are
available,
the
tail
should
be
securely tied
down.
NOTE
Ensure that the
nose
will
be
held
off
the ground under
aII
conditions
by means of
suitable
stands
or supports under
weight supporting
bulkheads
nearthe
nose
of
the
airplane.
LEVELING
Longitudinal leveling of the airplane is
accomplished by
placing
a
level
on
leveling
screws
located
on
the
left
side
of
the
tailcone.
Deflate
the
nose
tire
and/ or
lower
or
raise the nose
strut
to
properly
center
the bubble
in
the
level. Corresponding points
on
both
upper
door
sills
may
be
used
to
level the airplane Iaterally.
FLYABLE STORAGE
Airplanes
placed
in non-operational storagefor
a
maximum
of
30
days
or those which receive only intermittent operational
use
for
the
first
25
hours
are considered
in flyable storage
status.
Every
seventh day
during
these periods,
the propeller should
be rotated
by
hand through five
revolutions. This action "limbers" the oil
and
prevents
any
accumulation
of corrosion on engine cylinder walls.
WARNING
For maximum safety,
check
that the ignition switch is
OFF, the
throttle is
closed, the
mixture control
is
intheidle
cut-off position,
and
the
airplane is
secured before
rotating
the propeller by hand.
Do
not
stand
within the
arc
of
the
propeller
blades
while turning the propeller.
After
30
days,
the airplane should
be
flown for
30
minutes
or
a
ground
runup
should be
made
just long
enough
to
produce an
oil
temperature
within the lower
green arc range, Excessive ground runup should
be
avoided.
Engine runup also helps
to
eliminate
excessive accumulations
of
water
in
the
f
uel
system
and
other air
spaces
in
the
engine.
Keep
fuel
tanks
full
to minimize
condensation
in
the
tanks.
Keep
the
battery
fully
charged
to
prevent
the
electrol5rte
from freezingin
cold
weather. If
the
airplane
isto
be stored temporarily,
or indefinitely, refer to
the Service Manual
for
proper storage
procedures.
1
July
1979
8-9
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