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.