My tractor shut off and will not even turn over now. I believe it is a safety switch on the PTO lever. I have lots of power as the starter turns the tractor over if it is shorted across but the fuel pump must also be dead as it still will not start. I located the two switches over the rear diff that are on the end of the PTO lever and PTO position lever. I unplugged them and jumpered them across but it is still dead. I also jumpered the throttle pedal switch to no effect. Perhaps I need to jumper them all at the same time. We are trying to finish post pounding and the tractor is dead. Any ideas.