Piper PA-24 Comanche Service Manual page 343

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PIPER COMA~CHE
SERVICE MASt'AL
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A~
I
fl.
Cleaning. Inspection And Repair.
The in. . . trucnon . . . for cleaning. inspection and repair of the Hartzell propeller are the same a.. tho ..e given
lor
the McCaulcv propeller in paragraph 7A·D,
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17. Installation Of Propeller. (Hartzell) (Refer to Figure 7
A<~,)
a, Position the spinner bulkhead (4) against the starter ring gear support (5) so that one arrow line!'>
up \\ ith the Te I on the front face of the support.
b. Secure the spinner bulkhead to the starter ring gear support with 12 bolt'!
(fl).
12 nuts
(91.
and 24
"asher'!
(~)
(one under the bolt head and one under each nut), Carefully tighten nuts unif ormly to torque
limits shown in Table \'IIA-1. .
c, Clean the propeller and engine flanges.
d. Observe the starter ring gear to make sure it is mounted properly on the engine crankshaft flange.
The crankshaft flange is stamped with an "0" mark and the starter ring gear is likewise identified
h~
an
"0" ma rk , l'pon installation 01 the starter ring gear. the markings shall be mated
to
insure proper in..tallution.
e. In..tall "0" ring (10) and shim (II) on engine shaft.
CAtTIG'
It is absolutelv essential that shim (II) be installed. as failure to do so
may result in failure of the mounting bolts due to relative movement
of the two flanges.
f. Raise the propeller into position with the engine and slide the propeller onto the propeller mounnng
bushings.
g. 1n...tall the hexagon-head propeller hub mounting bolts in the propeller hub and tighten them
t
o
the torque given in Table
VIIA~1.
h. Check blade track. I Refer to paragraph 7A-22.)
I.
Safety-wire the mounting bolts and install spinner.
~A~I!<, Removal Of Propeller. (PA-2-t·260) (Refer to Figure 7A-4.)
a. Ascertain that the master switch and magneto switches are in the OFF position.
h. Remove the spinner (I) by removing the screws that secure it to the spinner bulkhead (
IOj,
c. On airplanes" ith serial nos. 24·4783 and 244804 and up. remove engine cowling. (Refer
In
paragraph
7.-\~H.)
d. Place a drip pan under the propeller to catch oil spillage.
e. Cut safety wire around the propeller mounting studs (7) and remove the studs from the engine
flange. The nuts are frozen and pinned to the studs. so the studs will turn with the nuts.
1' . Pull the propeller from the engine shaft.
g. Remme the propeller Osring (9) from the propeller hub Oeting groove.
h. The spinner bulkhead (10) may be removed from the starter ring gear (II) by removing mit...
washers and bolts.
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ISS t'ED: 8/18/72
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POWER PL-\,T