Originally Posted by
quiltedsunshine
Ah, it's an industrial machine. It couldn't hurt to try FMQ with the feed dogs on, and the presser foot tension lowered. You might want to check if there's a burr on the hook --which can be polished off with a very fine sandpaper (400-600 grit). On my longarm, if the thread is shredding, I turn the needle slightly to the right. If it skips stitches, I turn it slightly to the left. The hook on your machine is sideways to most domestic machines, but I think the same could apply.
You don't need to lower the tension on your presser foot..that's what the hopping foot is for, when it is raised there is zero tension on your fabric, even with the feed dogs up..it hops upward every stitch..