TM9-2350-261-20-1C H A P T E R 2P R I N C I P L E S O F O P E R A T I O NS e c t i o n I . I N T E G R A T E D S Y S T E MSSCOPEThis section describes how major systems of the carrier operate. An understanding of how each part functionsin a system and how components relate to each other will help you solve Possible maintenance problems withthe earner.POWER PLANTThe power plant consists of the diesel engine, transfer gearcase, transmission and differential. The fuel,exhaust, cooling, starter, generator, and engine air systems are support systems for the power plant.DIESEL ENGINEThe diesel engine is the primary source of power for the earner. The engine converts air and diesel fuel intoenergy and delivers this power to the transfer gearcase.STARTERThe engine is equipped with a heavy duty starter. The starter, with built-in solenoid, is used to crank theengine for starting.GENERATORThe generator is part of the carrier electrical system. It is driven by the transfer gearcase. The generatorcharges the batteries in the carrier when the engine is running. A regulator mounted in the driver’scompartment keeps the voltage at correct levels.GENERATOR FIELD SWITCHThe generator switch is mounted on the secondary fuel filter. When starting the engine the field switch is openand the generator is not energized to allow the engine to start with less drag. When the secondary fuel filter ispressurized with fuel, the field switch closes and signals the regulator to energize the generator and startcharging the batteries.2-1
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