COOLING SYSTEM (Cont).
Four 12-volt batteries connected in series-parallel supply the 12-volt
electrical system and provide 24 volts for the starter motor, blackout lights, accesso-
ries, and trailer connectors.
The Dual Voltage Alternator Control (DUVAC), mounted on the fire-
wall in the engine compartment, regulates the distribution of 12 and 24 volts.