Safety switches at John Deere tractor lawn mower

 It could be difficult to start a John Deere tractor lawn mower because of numerous safety switches:

       1.  Seat

       2.  Clutch pedal

       3.  PTO

       4.  Reverse

You cant start the machinery if any of the 4 are safety switches are on.  So be sure to make them closed switches so that you can operate them