TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0003 00 0003 00-23 THEORY OF OPERATION (Contd) STARTING CONTROL SYSTEM Starting System Operation: The starter motor on all LD and LDT multifuel engines is energized electrically, and operates mechanically by engaging the starter gear with the engine flywheel via an electric solenoid. To crank the engine, a number of switches are activated to send power to the starter solenoid and starter motor. The major components of the starting system are as follows: STARTER SOLENOID – Actuates starter motor gear to crank vehicle engine. STARTER SWITCH – Connects 24-volt battery power to starter motor when pressed. STARTER RELAY – A magnetic switch, actuated by starter switch that allows 24-volt battery power to flow to starter motor. STARTER MOTOR – Cranks vehicle engine for starting when supplied with 24-volt battery power. G F E D 7 11 27 74 74 74B 14 6 214 ACCESSORY SWITCH BATTERIES F E D G