Cessna 172N - Page 150

SECTION 8
HANDLING,
SERVICE
& MAINTENANCE
CESSNA
MODEL
172N
Install
the control
wheel
lock and chock
the
wheels.
In severe
weather
and
high wind conditions,
tie the airplane down as
outlined
in
the following
paragraph.
TIE.DOWN
Proper
tie-down
procedure
is
the best
precaution
against
damage
to
the
parked
airplane
by
gusty
or
strong
winds. To
tie-down
the airplane
securely,
proceed
as
follows:
(1)
Set the
parking
brake
and
install
the
control
wheel
lock.
(2)
Install
a
surface
control
lock
over the fin
and
mdder.
(3)
Tie
sufficiently
strong
ropes
or chains
(700
pounds tensile
strength)
to
the
wing,
tail, and
nose tie
-down
fittings and
secure each rope to a ramp tie-down.
(4)
Install
a
pitot
tube
cover.
JACKING
When
a
requirement
exists to
jack
the
entire
airplane
off
the
ground,
or
when
wing
jack
points
are
used in
the
jacking
operation,
refer
to the
Service
Manual for
specific
procedures
and equipment
required.
Individual
main
gear
may
be
jacked
by
using
the
jack
pad
which
is
incorporated in the
main
landing
gear
strut step
bracket.
When
using
the
individual
gear
strut
jack
pad,
flexibility of
the
gear
strut
will
cause
the
main
wheel
to
slide
inboard
as
the wheel is raised,
tilting
the
jack.
The
jack
must
then be lowered
for a second
jacking
operation.
Do not
jack
both main
wheels
simultaneously
rrsing
the individual
main
gear
jack
pads.
If
nose
gear
maintenance
is
required,
the nose wheel
may
be raised
off
the
ground
by
pressing
down
on a
tailcone bulkhead,
just
forward of
the
horizontal
stabilizer,
and allowing
the
tail
to
rest
on
the
tail
tie-down
ring.
NOTE
Do
not apply
pressure
on
the elevator or outboard
stabi-
lizer
surfaces.
When
pushing
on
the
tailcone,
always
apply
pressure
at
a bulkhead
to avoid
buckling
the
skin.
To
assist in
raising and holding
the nose wheel
off
the
ground,
weight
down
the
tail by
placing
sand-bags,
or
suitable
weights,
on each side
of
the
horizontal
stabilizer, next to the fuselage.
If
ground
anchors
are
8-B