I am no expert but have you checked the pressure adjustment valve? It's located under the seat and if it's adjusted to much the tractor will "seep" forward. It's normally a T-capped adjustment. May not be your issue but several have had problems with this.
It's been covered in depth before, do a search for this and I'm sure you find a full discussion. The charge pump supercharges the drive circuit. It is due to wear on the input shaft allowing high pressure 600+ psi oil into the suction side of the main pump causing higher than usual pressure/flow and an increase in speed.
Hello Everyone...Was wondering if anyone can help me out. I have a 1985 JD 112L. It runs like a top. I bought it used off of CL. The problem is that when I hit the PTO switch to engage the blades, the engine dies. Does anyone know what would cause this? Any suggestions greatly appreciated! Dave.
Dave, it's probably one of the safety circuits. Not sure exactly what these are on a 112L, but check for a seat switch intended to close when a person is in the seat, and a brake switch intended to close when the brake is depressed.
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