Propeller Care; Engine Care - Cessna 172S NAV III Pilot Operating Handbook

CESSNA SECTION 8
MODEL 172S NAV III HANDLING, SERVICE AND MAINTENANCE
CLEANING AND CARE
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PAINTED SURFACES
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I
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. However, keep the isopropyl alcohol
away from the windshield and cabin windows since it 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 blade life. 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 or failure of the propeller blade. Never
use an alkaline cleaner on the blades; remove grease and dirt with
Stoddard solvent.
ENGINE CARE
The engine may be cleaned, using a suitable solvent, in accordance
with instructions in the airplane Maintenance Manual. Most efficient
cleaning is done using a spray type cleaner. Before spray cleaning,
ensure that protection is afforded for components which might be
adversely affected by the solvent. Refer to the Maintenance Manual
for proper lubrication of controls and components after engine
cleaning. The induction air filter should be replaced when its
condition warrants, not to exceed 500 hours.
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172SPHAUS-03
U.S. 8-25