TM 55-2210-224-12
1-12. GENERATING EQUIPMENT AND CONTROL DEVICES (cont)
1 MAIN GENERATORS. Furnish dc power to operate the traction motors and also serve as series-wound starting
motors, operating from low battery voltage, to start the diesel engines.
2 ENGINE CRANKING CONTACTORS. Connects the battery to either main generator and its starting field, when
operating the generator as a starting motor.
3 BATTERY CHARGING ALTERNATORS. There are two auxiliary alternators, one mounted on each engine, which
provide current to charge the storage batteries and to operate electrical auxiliaries. The alternators are internally
regulated.
1-13
