TM10-3930-660-10 1-16.   ELECTRICAL   SYSTEM. BATTERIES.   Provide   power   for   three   circuits:   the   charging   circuit,   the   starting   circuit,   and   the   lighting circuit.   Two   12   volt   batteries   are   connected   in   series   to   provide   starting   power. ALTERNATOR.   The  24  volt,  65  amp  alternator,  an  integral  part  of  the  charging  circuit,  provides  current to  charge  the  batteries  when  the  engine  is  running. STARTER   MOTOR.   Part  of  the  starting  circuit,  the  starter  motor  is  used  to  turn  the  engine  flywheel  fast enough  to  start  the  engine. CIRCUIT   BREAKERS.   Located   inside   instrument   panel.   Switches   that   open   the   battery   circuit   if   there is  a  shorted,  grounded  wire  or  excessive  current  draw  by  a  defective  component  in  the  corresponding circuit.   When   the   circuit   is   open,   no   current   will   flow   through   the   electrical   system.   The   circuit   breakers will   automatically   reset   once   they   cool.   If   a   breaker   continually   trips,   the   electrical   system   requires repair. 1-10