TM 10-3930-671-10 Operation How To Operate The Truck Start the engine. Turn the master power switch to the "ON" position. Turn   the   ignition   key   switch   to   the   "START"   position. When  engine  is  running,  release  the  key.    The  key  will return to the "RUN" position. If you are unfamiliar with  this  procedure,  please  refer  to the section "How To Start The Truck." Be  sure  that  the  truck  won’t  move  unexpectedly  before you are ready to drive. Put your foot on the brake pedal and push down to apply the service brakes. Release the parking brake. E-76