Sounds like you have a high pressure to sump leak in the hydraulics. When the clutch is disengaged the trans pump stops. Under normal conditions the front reservoir and cooler hold enough oil to keep the main pump supplied. A high pressure leak will empty the reservoir and starve the main pump. Leak can be in any high pressure function (SCV, rockshaft, steering, brakes, diff lock, PTO). A simple check is to start the tractor when cold and let run for 15-30 minutes then feel for heat buildup in one of the functions. The warm function will be leaking internally. Good idea to put gauges on and test pto and main pump inlet pressures.
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Today's Featured Article - Buying your first tractor: The People You Buy From - by Chris Pratt. If you are a first-time buyer, chances are that you are likely to take the word of the seller on things. This is where the problems start... You have reviewed your implement needs and determined the size of machine that will fit the bill and even made a list of the most desirable models. You checked on the availability of a 3-point hitch for the machines on the list and advertised in your local classified paper with so
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