Piper Comanche PA-24 Service Manual page 714

PIPER COMANCHE SERVICE MANUAL
Lock Test
Amps
300 S70 SOO
Min. Torque. Ft.-Lb •.
18
27.S 64
Approx. Volts
7.3 6.3
3.4
9-74. Startin,
Mo'.rs
(P, .... li •• ).
9-iS.
Description. The Far reduetion
Itartul&
motor
CCIlsists
of six major components: The
Commutator End Heed Assembly. The Armature. The Frame and Field Assembly, The Gear Hou sing,
The Pinion Housing, and The Bendix Drive Assembly. Refer to FiIU", 9-29 •.
9-76. Operation_ When the starting Circuit is energized, b. ' : ' " J current is applied to the startwg
motor terminal. Current nows through the Hell.! coils, creating a strong magnetic fIeld. At the
same time. current flows through the brushes to the commutator. through the armature wind
Il1gs
to
. HEAD ASS"t
KT
_INGSET
_---CC)YI:IlBAND
" K.r.u'D BALL HAiliNG
~aENIDIX
DIII\,£
IENDllI DIlIVE SHAFT
PiNION HDUSING
AS.5Y.-_~'
IRONZE IEARlNG
-----~~_=~....J!
FIGURe 9-290. EXPLOC'EP
VIEW
OF
:;UR
REDUCTION STARTING MOTOR
ELECTRICAL SYSTEM
ISSUED:
8/18/72
3
C14