Ok, I am confused and would like some clarification. Can someone give me the definitive operational definition of what "Live" PTO versus "Independent" PTO versus "Dead" PTO.
Here is my cut at it, but other posts here seem to disagree:
1. "Dead" PTO
If the PTO is engaged and one is bush-hogging along and presses in the clutch and the spinning bush-hog (assume no overrunning coupler) continues to push tractor forward, then the PTO is "Dead". The PTO power is cut off the second the clutch disengages forward motion, but still pushes the tractor forward until the bush-hog stops spinning.
2. "Live" PTO.
If the PTO is engaged and one is bush-hogging along and presses in the clutch and the spinning bush-hog (assume no overrunning coupler) DOES NOT push tractor forward, then the PTO is "Live". The PTO power is cut off the second the clutch disengages forward motion, and the bush-hog can spin to a stop without pushing the tractor forward.
3. "Independent" PTO
The same as "Live" PTO; The PTO is "Independent" from the drive train of the tractor, except for the clutch.
4. Some tractors have a "Two Stage" clutch, which is, in essence, a separate clutch for the PTO and transmission. Half way down stops power to the wheels, but continues to drive the PTO. All the way down stops power to both. While all PTO's I have seen with Two Stage Clutches fall into the "Live" category, there may be some out there that the spinning bush-hog will push forward.
My point is that, in my understanding, a Two Stage Clutch does not "make" a PTO live or dead.
Please correct the error of my ways!
By the way, I briefly searched the article archives here and found nothing. Perhaps someone could write an article on this terminology for us?