Piper Cherokee Six Service Manual page 404

PIPER CHEROKEE SIX SERVICE MANUAL
Figure 7A-2. Typical Nicks and Removal Method
7A-5. CLEANING, INSPECTION AND REPAIR OF PROPELLER.
a. Check for oil and grease leaks.
b. Clean the spinner,
propeller hub interior
and exterior, and blades with a
non-corrosive solvent.
c. Inspect the hub parts for cracks.
d. Steel hub parts should not be permitted to rust. Use aluminum paint to touch up if
necessary, or replate during overhaul.
e. Check all visible parts for wear and safety.
f.
Check blades to determine whether they turn freely on the hub pivot tube. This can
be done by rocking the blades back and forth through the slight freedom allowed by the
pitch change mechanism. If they appear tight and are properly lubricated, the pitch change
mechanism should be removed so that each blade can be checked individually. If blades are
tight, the propeller should be disassembled.
g. Inspect blades for damage or cracks. 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. Refer to Figure 7A-2 for propeller blade care.
7A-6. INSTALLING PROPELLER. (Constant Speed.)
a. Insure master and magneto switches are off.
-
b. Place fuel selector to off position.
c. Place mixture control in idle cut-off.
POWER PLANT
Issued: 8/17/72
2G8