Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 1524 / 1956

PAGE 10
Feb 28/07
7K6
80-10-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
4
5
3
1
2
1. MOTOR ADAPTER
2. MAIN MOUNT
3 . IN S ULATING BOOT
4. NUT (M 8 LOCKING)
5. HEX S CREW S (M5 X 25MM ) AND LOCKING TAB WA S HER S
(TORQUE TO 50 IN.-LB S .)
6. S OLENOID PLUNGER
7. LAY- S HAFT ( S HEAR PIN GOE S HERE)
6
7
Shear Pin Replacement
Figure 3
F. Shear Pin Replacement (See Figure 3.)
The shear pin is designed as the weak link to minimize starter and ring gear damage in the event of
a premature ignition misfire event (i.e. - kickback). If the starter pinion engages the flywheel and the
starter motor spins (or sounds like it’s spinning) and the starter's pinion gear does not rotate (and
neither does the flywheel, engine, and propeller) then the shear pin has done its job and must be
replaced.
(1) Remove starter from airplane per Removal, above.
(2) Lift the insulating boot on the motor lead and remove the M8 locking nut with a 12mm wrench
and remove the motor lead wire from the stud.
(3) Remove the two M5 x 25MM hex screws and locking tab washers holding the motor adapter to
the main mount.
(4) Separate the two assemblies being careful not to dislodge the solenoid plunger residing in the
main mount.
(5) Replace the shear pin in the lay-shaft.
(6) Reassemble the motor adapter and main mount, installing the two M5 screws and torquing
them as specified in Figure 3.
(7) Reconnect the motor lead, secure with the M8 locking nut, and cover with the insulating boot.
(8) Install starter in airplane per Installation, above.