looking for help with the reverse lever on my cobra class 4, it has been slipping down out of reverse while sewing in reverse. I had a look at the manual and it says to 'tighten the nut to make it sew in reverse at the same stitch length as forwards' but the only nut there it the stitch length changing dial nut which is not able to be tightened as such. when pushing the handle into the up position it feels loose already before sewing and then just slips down while sewing.
any ideas would be much appreciated!!
