3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600, RXT Models Built March, 2008 to May 16, 2010 - ELECTRICAL CIRCUIT DIAGRAMS 3200 03/19/2008 05/16/2010 4100 03/19/2008 05/16/2010 4300 03/19/2008 05/16/2010 4400 03/19/2008 05/16/2010 7300 03/19/2008 05/16/2010 7400 03/19/2008 05/16/2010 7500 03/19/2008 05/16/2010 7600 03/19/2008 05/16/2010 7700 03/19/2008 05/16/2010 8500 03/19/2008 05/16/2010 8600 03/19/2008 05/16/2010 RXT 03/19/2008 05/16/2010