Thanks for another informative video. Yoke joints are also known as Cardan joints. When a yoke/Cardan joint is operating at an angle the output speed varies cyclically from the input speed, with the magnitude of the variation increasing with the angle. Also when the joint is operating at an angle there is a force created perpendicular to shaft which increases with increasing torque being transmitted. The combination of the varying output speed of the yoke/Cardan joint and the inertial load cause the perpendicular force to vary which results in the "jumping". In contrast a CV joint has an (almost) constant speed output so there is not a variation in the perpendicular force.dd
When we add a quick hitch the shaft has to extend an extra 4 inches or so. Do you recommend a PTO shaft extension? If so what kind of coupler do you recommend. I use my quick hitch with a PTO generator so the shaft is pretty short to begin with. Thank you for your helpful videos, Andy
Speaking of PTOs and such, what are the implications of running an implement rated for 20-30HP on something like a 40HP PTO output? All modern implements have shear bolts or slip clutches, so what problems might it cause? As long as you bring the implement up to speed gently (as opposed to engaging the PTO at 540 RPM), it seems like there shouldn't be an issue. But I may well be missing something :)
Most implements have a fairly wide HP range. A rotary anything should have a sheer bolt or slip clutch to control the maximum amount of torque that can ever be applied regardless of PTO horsepower. As long as the proper sheer bolt or slip clutch is used, I don’t believe there would be any problem. (Kind of like the proper circuit breaker for the amp load and wire gauge.)
@@lcee6592 That's exactly my take on it. You can't "force" horsepower into an object. Unless you lock up the implement or slam the PTO into operation (which is effectively the implement stalled by inertia), 20 HP or 2000 HP isn't going to make any difference. And, as you say, with a shear bolt or slip clutch, if you do lock up the implement, you've effectively tripped the circuit breaker, so again, 20 HP or 2000 HP shouldn't matter.
3:30 look at that hitch. most have some type of clamp mechanism to fix to the drawbar if not using 3 pt or just the lower 2 parts of the 3 pt as noted by Lumberjack Dreamer
Want to hear some new, descriptive and inventive curse words? Ask me to hook up a PTO shaft to the tractor using one of the “collar” locks instead of the push pin…. I despise that contraption.
