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IHCPloughman
10-25-2013 11:44:18
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Re: Minneapolis Moline Plow in reply to Alex Garrett, 10-22-2013 05:44:54
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Quoting Removed, click Modern View to see
I don't know what model you have, but the very common model AF (40's-50's era with I-beam construction) doesn't have a side-to-side adjustment for the tail wheel like an IHC #8 does. The only way to adjust how straight the plow pulls is to adjust the landside and the landside heel. And there really isn't adjustment to that either, you just have to make sure the heel isn't worn too far, and if it is, you can weld beads on it or weld junk to it to build it back up.
When I see a tail wheel flop on an MM plow, there are two possibilities: the vertical adjustment has the wheel set too high, or, most likely, the rear of the plow is lifting up because the shares arent sucking the plow into the ground or the vertical hitch is out of adjustment.
A plow hitch set too high on the plow or too low on the tractor can cause this condition. There is truly only one correct position for the hitch, and if the tail wheel still flops once the hitch is correct, I would say your shares aren't pulling the plow down.
Oh, I have seen this also: If the shares are good and the plow is working at a consistent depth, look for the landside heel making a mark in the furrow bottom. If it is, then the vertical adjustment of the tail wheel has it set too high.
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If you have the later Oliver based MM plow (ex: Oliver 4240), most of the above is still true, however, that plow does have side-to-side adjustment on the tail wheel. I see those tail wheels flop alot, and it is usually caused by incorrect vertical hitch adjustment.
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I looked back at your old posts, I am assuming you have an AF. I used a 3-14 AF behind a UB and ran the plow hitch at the lowest hole on the plow. When I did that, I had to lower the tractor hitch down an inch or two by rigging up spacers. It was a departure from original, but a justified one. The hitch on an MM plow is so short that vertical hitch adjustments are very finicky. A change in depth changes the angle of the hitch more so than on a plow with a longer hitch.
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