Piper Comanche PA-24 Service Manual page 569

7C-11. Installation of Propeller. (Refer to Figure 7C-1.)
a. Clean propeller and engine flanges.
b. Install spinner bulkhead (10) on srcrer ring gear, and torque bolts to specficacions given in Table VIIC-I.
c. Observe the starter ring gear to make sure it is mounted properly on the engine crankshaft flange.
The crankshaft flange is scamped with an "O" mark and the starter ring gear is likewise identified
by an "O" mark. Upon installation of the starter ring gear, the markings shall be mated to insure
proper installaton.
d. Lubricate and install O-ring (9) inside the propeller hub in the O-ring groove.
e. Mount propeller on engine. Screw each stud (7) into its mating flange bushing a few threads at a
time until all are tight. Torque bolts to specifications given in Table VIIC-I. Safety the mounting
bolts with MS20995C41 wire, routing the wire through the lock pins (8).
f. Check blade track per paragraph 7C-13.
g. Install engine cowling. (Refer to paragraph 7C-7.)
h. Install spinner (1) and secure with screws.
7C-12. Adjustment Of Low Pitch Blade Angle Stop.
a. The propeller comes from the factory with the low pitch stop adjusted for proper blade angle. If,
however, this adjustment has been disturbed, use the following procedure to obtain blade angle:
1. The blade angle (refer to Table VIIC-I) is determined by placing a propeller pronacror on the
face side of the propeller, at the 30 inch station. as measured from the hub center line. The
blade must be honzontal.
04/01/09
PIPER COMANCHE SERVICE MANUAL
Figure 7C-2. Typical Nicks and Removal Methods
2G13
VIIC - POWER PLANT
(PA-24-260 TURBO)