TM 9-2320-260-20
1-20. ELECTRICAL SYSTEMS OPERATION (Contd)
b. Starting System Operation.
A BATTERIES - Four 6TN batteries supply 24 volts to starting system.
B PROTECTIVE CONTROL BOX - Prevents starter motor from engaging when engine is
running.
C
OIL PRESSURE LOCKOUT SWITCH - Provides an electrical signal to protective control box,
which prevents starter from engaging.
E BATTERY SWITCH - Activates all electrical circuits.
F IGNITION SWITCH - When engaged, provides battery power to starter solenoid.
G STARTER MOTOR - Converts electrical energy to mechanical power as it engages the flywheel
to crank engine.
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