Figure 8A-2. Propeller Blade Minor Repair
NOTE
Nuts with studs will have to be backed out evenly so that propeller may be
pulled forward (approx. 1/4-inch at a time) until all studs are disengaged
from the engine crankshaft flange.
4. Cap engine flange to prevent contamination.
8A-6. CLEANING, INSPECTION AND REPAIR OF PROPELLER.
a. Check for oil leaks.
b. Clean spinner and propeller assembly with a non-corrosive solvent.
c. Inspect spinner and propeller hub components for cracks.
d. Check all visible components for wear and safety.
e. Inspect blades for nicks and cracks. Refer to Figure 8A-2, for propeller blade minor repair. Nicks in
leading edges of blades should be filed out and all edges rounded, as cracks sometimes start from such
places. Use fine emery cloth for finishing.
f. Hartzell propellers require grease to the blade hub through zerk fittings. Remove one of the two
fittings for each propeller blade, alternate the next time. Apply grease through the zerk fitting until
fresh grease appears at the fitting hole of the removed fitting. This care should be taken to avoid
blowing out hub gaskets.
g. Check for freedom of blade movement in propeller hub by rocking each blade back and forth through
the slight movement allowed by the pitch change mechanism. Blades that will not allow this
movement indicate internal damage.
h. If internal or major external damage is apparent, the propeller assembly should be referred to an
appropriate repair facility.
i. Check condition of propeller mounting nuts on studs.
Revised: 8/31/77
2C22
CHEROKEE ARROW III SERVICE MANUAL
POWER PLANT - LYCOMING
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