Posted by rumplestiltskin on June 02, 2013 at 16:35:02 from (107.216.124.112):
In Reply to: 300U pto revisted posted by Dave H (MI) on June 02, 2013 at 14:15:56:
Hi, Dave.
I know exactly what you mean. Been there, done that with a 300U and a 350U.
As for the punch marks, I couldn't find them on either tractor to save my life. I just centered the control lever between the limits of its travel as Jim suggested. Then I adjusted the band screws until they each had the same number of threads showing when producing just a little drag on the shaft. In other words, I made sure I didn't start off with one screw sticking way out and the other screw way in. So as a starting point, I had the lever centered and the bands just loose and symmetrical.
Now as you know, the problem is when you have one band holding tight you can't tell when the other band is also holding tight because it could be the first band or both of them.
I adjusted the first band until tight, then backed it off (counting by 1/4 turns) until the shaft just turned freely. Then I did the same with the second band, backing it off the same number of turns as the first band. Then I held the screws while I tightened the lock nuts. This way both bands were just loose at mid-lever travel, and adjusted symmetrically.
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