Another thought is disconnect the loader. You may have to plug the hose on the loader end because the tee you connect to the tractor on has a special fitting which may be hard to find a cap for. Now see if your tractor 3 point works without the loader connected. If so the relief valve in the loader valve may be stuck open. I believe you are connected as a power beyond circuit and closed center system is just circulating all the flow and pressure through the valve to the return. Another slim, slim possibility is that the loader valve is the type that can be switched from open to closed center by installing a plug inside one of the ports. If the plug was installed only loosely it may have turned itself out. Also to clarify in my other post the ..coupler.. I am referring to is a hose coupler not the drive coupler.
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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