Check that the presser bar is tightened and adjust the little hand screw on the top, above the lever and make sure it is turning at all to put the pressure needed. Too loose will give you nothing, and too tight will pucker the fabric's tail off. Also there is a spring on the presser bar. Open the face and look at it and check for functionality.
Originally Posted by emmah
I need help! I got a nice Singer Spartan (the no-frills 99) and have cleaned and oiled it...but the presser foot doesn't clamp down tight on the feed dogs. It has a lot of "play" in it and so the fabric doesn't move well no matter what stitch length I set it on. Other than that it runs very nicely, quiet and smooth. Any suggestions?