TM 9-2320-273-20
2-38. STARTING AND STARTING CONTROL SYSTEM.
1.
ENGINE RUN SWITCH. Directly controls fuel solenoid shutoff valve and allows
remainder of starting circuit to be placed into operation when the start button is
depressed.
2.
ENGINE START BUTTON. Activates starting circuit by energizing the starter
relay.
3.
STARTER RELAY. With ENGINE RUN switch on, transmission ratio selector lever
in neutral, and ENGINE START button depressed, the relay energizes and closes the
starter solenoid circuit.
4.
NEUTRAL SAFETY SWITCH. Switch is normally open. Starting circuit cannot be
activated when ratio selector lever is in any position other than neutral.
5.
STARTER SOLENOID. 12-volt power is applied to the starter solenoid when
starter relay is energized. The solenoid closes and supplies 24-volt power, which
energizes the starter motor.
6.
STARTER MOTOR. When energized, the motor engages the flywheel to start the
engine.
7.
FUEL SOLENOID SHUTOFF VALVE. When the ENGINE RUN switch is turned
on, valve is energized and opens to allow fuel to pass to the injectors. (See paragraph
2-24 for description of fuel system.)
2-38
