Attention Sewing Machine Guru's. I picked this Brother sewing machine yesterday for $10. It's a Bradford 1641 model..I went to the Brother site and cannot locate the year it was built. I sews really quiet..has a few cams(pictured . The needle only sews to the far left..When I move the screws for the zig zag it sews the stitch but I can't figure out how to get the neeedle to sew in the center position. Is it only supposed to sew to the left?? Help!