Originally Posted by
gigi712
QuiltE, sent you a pm. The accu-feed is pulled down, fully engaged, and comes off as soon as I start sewing. I'm using the 0 - 1/4" foot.
Snip, I truly believe I cause the tension knob to move during sewing because I'm not the most careful quilter, more like a bull in a china closet if you get my drift.

I didn't notice it before but if you're using the O foot, that is not an accufeed foot so the accufeed should not be engaged.