My Particular lawn tractor has a PTO switch to turn on the mower blades. My son tore the belt for the mower deck. I replaced it with the proper belt and installed it according to the diagram. Yet when the mower is turned on the blades begin to spin even though the PTO switch is in the on position. If I had a wiring schematic I could figure it out.

Jeff Buffenmeyer, May 2009