HELP! Please with serging rolled hem

It sounds like the stitches are crowding up too much on the horizontal needle in the stitch plate. I had this happen occasionally with very fine fabrics. But also check that the needle isn't loose and hasn't shifted to the back of the machine, narrowing the gap too much for the stitches to slide off as you sew... I had that happen! HV replaced the stitch plate.

If all is OK with the machine, try the following:

Hold the fabric a leeetle bit taut with both hand on the fabric, one at the back and one at the front. Also, you may need to lengthen the stitch a tad and widen the cutting width just a smidge... Make sure you have the right type and size of needle in the machine, and have set it properly for the two thread rolled hem if that is what you are using. You didn't say exactly what was wrong with the stitch, so mine is just a guess... I had a 910 for several years, and it always made a fantastic rolled hem.

I just finished up classes on my 936, and one of the things we did with the rolled hem is to make sure we are cutting material, even if it's a little bit, as we go. This helps keep the material from getting stuck.

-Irene