Section 6.3
ENGINE CRANKING SYSTEM
Figure 3. Starter Contactor
STARTER MOTOR
DESCRIPTION:
The Starter Motor is a 12 volts negative ground type.
It is capable of operating on heavy duty battery input
at temperatures as low as -30 F. without any signifi-
cant change in performance. Its pinion is a 10-tooth
type having a 20- pressure angle.
TESTING:
Connect the test leads of a VOM across the Starter
Motor terminal and case. Hold the Start-Run-Stop
switch at "START". The VOM should read battery
voltage and the Starter Motor should turn.
If VOM reads 12 volts DC and the Motor does not
turn, the Motor is probably defective. Remove the
Motor and test with a 12 volts DC power source.
Replace the Starter Motor if defective.
Page 6.3-3
Figure 4. Starter Motor
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