Posted by rumplestiltskin on June 02, 2013 at 20:10:34 from (107.216.124.112):
In Reply to: Re: 300U pto revisted posted by Dave H (MI) on June 02, 2013 at 19:14:06:
Hi again, Dave.
Not sure this will help any, but there is a small lever inside the rear housing that acts like a see-saw, tightening the front band as it loosens the rear band, and tightening the rear band as it loosens the front band. So although the bands technically act independently of each other, they are not actuated independently -- they are simultaneously actuated in opposite directions (tight vs. loose).
You're looking for the "sweet spot" where the handle is at mid-travel and the see-saw has allowed both bands to be just barely loose enough to not produce any noticeable drag.
It sounds like you have a pretty good handle on it, and I think you'll get it with a little more tinkering.
One thing: The entire linkage, from the actuating handle to the rear housing, should have absolutely no slop.
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