When the tractor is off--as soon as I kill it, I can turn the pto the standard half turn or so until the brake ring contacts the boss inside the housing. And the PTO clutch should be good to go. Out of curiosity last week I went ahead popped the mcv and pto clutch out of the tractor. Clutch pack now has new seals, steels, clutches, and springs. It checks good with air, and honestly, it didn't need replacing. It was cheap to do, and well, what the hell, I was in there. The big issue I found with the tractor was the parking brake band. It was chewed up, and lining material was everywhere inside the case. I cleaned everything best I could--changed hyd filter and cleaned pickup screen on transfer pump. I was expecting to find a torn gasket on the mcv, but no such luck. I'm am going to grab a gauge today to see what is going on w/regard to pressures. BTW, from what I can tell, the PTO is engaged and not in the feather position-well, it may functionally be in the feather position if it is getting partial flow when off. After cleaning the PTO lever mechanism, it now behaves as it should--automatically returning to the "off" position anytime the handle is released before the break over point in the linkage.
It certainly didn't hurt that I cleaned up the housing and did the pto job, but after not seeing anything obviously amiss, I was really hoping it would magically fix itself. Unfortunately, that was not the case.
And just to confirm, with the PTO off, I should have 0psi on the line going out of the MCV into the T for the PTO feed, yes? Or is there a certain amount below that is acceptable?
And again, with fluid going to the PTO the only valves that should matter are the PTO and pressure regulator. And if the PTO valve is functioning correctly, the pressure regulator should not be able to cause an increase in pressure when the PTO is disengaged.
Last thought for the morning- with the lever unhooked, is there a point at which the pto valve starts to feather as the spool is raised--basically beyond the off position? If that doesn't make sense... Going from fully engaged with the spool pressed fully down, is there a point going up just past the disengaged position that the feathering position is encountered for a second time? I doubt that is the case, but I figure I should ask.
Sorry for the long post and babbling, but it is early--and I'm curious.
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