Textron Cessna 172S Skyhawk SP, Information Manual

Page: 236 / 491

CESSNA
. MODEL 172S
SECTION 8
HANDLING, SERVICE & MAINTENANCE
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 inductionair'.filter should be
replaced when its condition warrants, not to exceed 500 hours.
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Revision 4
8-23