CA problem

With the PTO engaged, when you let out on the clutch to move the rearend seems to bound up. It pulls the motor slightly and then you hear and feel  it break loose . Only does it with pto, any ideas. Thanks, JM.

We suspected that might be what it is, thanks for the reply.

No, I didn't forget your post. 

I'm aware of all that you say. I'm sure technology was moving fast at that time and just a few years meant alot of change. I guess it was a matter of timing bring out the CA in 50 and just 2-3 yrs later true live hyd was available on other models. Can't really say much about the hitch because Ford was way ahead on that but the power to weight thing......yep they were king there. I do like the fact that Allis put must of the cast iron over the rear wheels.

wkpoor wrote: Can't really say much about the hitch because Ford was way ahead on that but the power to weight thing......yep they were king there.

The 3pt and its semi copies such as the eagle hitch, where not "way ahead"  The are hard to hook up, the draft control is lousy compared to a snap coulpler, and they were designed more of a way to keep from getting killed instead of a way to help things along.  The only comparable hitch to the snap coupler was the IH fast hitch brought out a few years later.  The only reason the 3 point became the standard is because the patents ran out on it first and IH refused to license JD to put the fast hitch on their new generation tractor.  The 4010 gained such a foot hold, along with ford and case producing them, that it became the standard, not because it was better in anyway.