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ed, be sure there is nothing wrapped around the blades. lower the deck and be sure the belt is around all of the pullys. If the belt comes off one of the pulleys or the pulley on the engine it may feel normal but it wont engage the blades.
possible that the teeth of the pto dog are worn to a taper and not fully engaged
the lever for the engagement is moving the full travel to engage
the bearings on the pto shaft are failing and allowing misalignment of the shaft thereby walking the dog out of engagement
check that you have the correct lever in position
there is a lever that separates the drive from the pto operation so that you can run the pto with out the gear box
Check all connectors going from switch to PTO engagement clutch. Check ground wire from PTO. This problem is either a bad connection or a faulty electromagnetic PTO.
The lever is maybe not engageing the electrical switch so if it worked good in the past something has worn or come loose.Find the point where the lever engages the switch and there are usually 2 wires running to the pto.Also one or more wires might be off the pto.Go from one thing the lever does to the next step and it might be a bad switch if the lever is working the switch and it still does not turn off.Hope this helps
It would be helpful if I knew whether it was working and quit or has never worked. At any rate it has of course a live PTO on it (not dependent on the clutch to engage-disengage it). Check your linkage, make sure nothing has come loose and not moving the travel rod. Secondly some models have a hydraulic fluid compartment that is used for the PTO alone, check to see if this is the case and if so check fluid levels. Back to linkage, the engage mechanism is usually a lever of some type that moves a valve body and lets hydraulic flow under extreme and engage s set of input and output clutches together. If your engage mechanism is a magnetic clutch, check for bad wiring and burnt fuses. If it is a fuse replace with the same value as already in the harness. If the new fuse flows don't do like me and put a larger fuse in it, though that will show what wires are involved with the clutch engagement it also shows the wires to be replaced. Check wiring for ***** wires or wires worn and touching metal parts and grounding out.Back to Hydraulics again, unless you've loaded the PTO hard enough to burn the clutches out (which I doubt very much) it can only be that fluid is not getting to the clutches. Chances that there is a problem inside the tractor with the valve body are slim but possible. Most PTO that just quit are caused by linkage problems or low Hydraulic fluid. Check all the above, I believe you will find your problem lies somewhere in what I have explained. I farmed for 30 years and we ran from 140 -250 HP tractors and if a PTO went out it was usually linkage or low Hydraulic Fluid. Hope this helps, don't want to miss a crop over a PTO!Col. Dana Gillespie TSM
the coil in the electric PTO shorts out when it expands by heat causing it to lose it's magnetic pull and disengages- I hate to say it,but you need a new PTO clutch.
The PTO usually has a clutch that has to be engaged so that you can select the PTO rotation setting. I had a problem like that on my tractor and all it needed was a little adjustment on the PTO clutch lever, so it could disengage the PTO gearbox properly.
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