Cessna 172N Operating Handbook 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.
T I E. D O WN
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.
J AC KI N G
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