PIPER CHEROKEE
SIX SERVICE
MANUAL
When engine
starts, the drive will
return to the de-
meshed position.
10-44. CRANKING
MOTOR SERVICE TEST
SPECIFICATIONS. Delco-Remv
specifications for 12 volt cranking motors installed as standard equipment on
the PA-32
aircraft
are as follows:
Motor Model 1109657
Delco-Remy, Ref.
Service Bulletin
1M-110
Min. Brush Tension 24 oz.
No-Load Test
Volt
10.6
Min. Amps 48.0
Max.
Amps
80
Min. R.P.M.
5800
Max. R.P.M. 8200
Resistance
Test
Volts 4.0
Min. Amps 365
Max. Amps 420
10-45. CRANKING
MOTORS. (Prestolite)
10-46. DESCRIPTION.
The gear reduction starting
motor consists of six major
components:
The Commutator End Head Assembly,
The Armature, The Frame
and FieldAssembly,
theGear
Housing, The
Pinion Housing,
and The Bendix Drive
Assembly. Refer to Figure 10-27.
10-47. OPERATION.
When
the starting circuit
is energized,
battery current
is
applied
to the starting motor terminal.
Current flows through the field
coils,
creating
a strong magnetic
field. At
the same time, current
flows through
the
brushes
to the commutator,
through the armature
windings
to ground. The
mag-
netic force created in the
armature combined with that created
in the field wind-
ELECTRICAL
SYSTEM
Issued: 8/17/72
3C10
To Next Page
Loading...
