Cessna 17273274 Pilot Operating Handbook page 174

SECTION 8
HANDLING, SERVICE
& MAINTENANCE
desired, the airplane may be waxed with a good automotive wax. A heavier
coating of wax on the leading 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 necessary
to remove ice before flight, care should be taken to protect the painted
surfaces during ice removal with chemical liquids. Isopropyl alcohol will
satisfactorily remove ice accumulations without damaging the paint.
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.
PROPELLER CARE
Preflight inspection of propeller blades for nicks, and wiping them
occasionally with an oily cloth to clean off grass and bug stains will assure
long, trouble-free service. Small nicks on the propeller, particularly 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 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 saturating the engine with sol­
vents. All other openings should also be covered before
cleaning the engine assembly. Caustic cleaning solutions
should be used cautiously and should always be properly
neutralized after their use.
INTERIOR CARE
To remove dust and loose dirt from the upholstery and carpet, clean the
interior regularly with a vacuum cleaner.
Blot up any spilled liquid promptly with cleansing tissue or rags.
Don't pat the spot; press the blotting material firmly and hold it for several
8-16
CAUTION
CESSNA
MODEL 172N
1 July 1979