Cessna 150 Series Service Manual page 160

SECTION 13
PROPELLER
TABLE OF CONTENTS
Page
PROPELLER ..... .......... 13-1 Removal
............... 13-1
Description .. .. . . .. . . .. . 13-1
Installation .. ... . . . . .. . . . . 13-1
Repair . ..... . . ... . .... 13-1
13-1. PROPELLER. d. Using a punch through the holes in forward face
of propeller, drive two dowel pins (8) aft to separate
13-2. DESCRIPTION. An all-metal, fixed-pitch propeller and spacer, freeing aft spinner bulkhead.
propeller, equipped with a spinner, is used on the
aircraft. 13-5. INSTALLATION.
a. Clean mating surfaces of propeller, crankshaft
13-3. REPAIR. Repair of a metal propeller first flange and spinner bulkheads.
involves evaluating the damage and determining
WARNI
whether the repair is to be a major or minor one.
Federal Aviation Regulations, Part 43 (FAR 43), and
Federal Aviation Agency Advisory Circular No. 43.13 Be sure magneto switch is in OFF position
(FAA AC No. 43.13), define major and minor repairs,
before turning crankshaft.
alterations and who may accomplish them. When
making repairs or alterations to a propeller, FAR 43,
b. Position aft spinner bulkhead between propeller
FAA AC No. 43.13 and the propeller manufacturer's
and spacer, and drive dowel pins into position to at-
instructions must be observed. The propeller tach propeller, spacer and spinner bulkhead.
Bulk-
manufacturer's Service Manual may be obtained from
head must be positioned so that propeller blades
* Cessna Parts Distribution Center (CPD 2)
emerge with ample clearance.
c. Locate top center of number one piston on its
13-4. REMOVAL. (Refer to figure 13-1.)
compression stroke. Align the top center mark on
the crankshaft flange with parting surface of the
WARNING crankcase below the crankshaft.
d. With propeller blades in vertical position, ro-
Be sure magneto switch is in OFF position tate blades 30 degrees clockwise (looking aft).
before turning propeller. .e. Install propeller on crankshaft flange.
f. Install forward spinner bulkhead, tighten bolts
a. Remove spinner (1). evenly and torque to 300-360 lb-in.
b. Remove safety wire from mounting bolt heads (3). g. Safety wire propeller mounting bolts. Safety wire
c. Remove bolts and washers and remove forward must be installed around bolt heads and not over bolt
bulkhead (5).
heads.
NOTE
NO''E
The aft spinner bulkhead (7) is installed be-
Elimination of front bulkhead rotation within
tween propeller (6) and spacer (9), and is spinner will help prevent wearing or cracking of
removed as the propeller is removed.
spinners and bulkheads. Apply a single wrap of
double stick tape, stretched tightly to prevent
wrinkles, around outer flange of front bulkhead
before installing spinner to eliminate bulkhead
rotation within spinner.
h. Install spinner.
Change 1 13-1