Description Elna 2600-2800 Sewing Machine Service-Parts Manual. Adjust: * To change the face plate. * Tension thread adjustment. * Presser foot height/alignment. * Needle swing. * Clearance between hook drive gear and lower shaft gear. * Feed balance. * Needle drop position. * Feed dog height. * Needle to hook timing. * Buttonhole feed balance. * Replacing Motor/motor belt tension. * Needle bar height. * Buttonhole zero feed. * Replacing/adjusting threader. * Upper surface of hook race. * Buttonhole functions. * Upper edge of needle eye. * Much more! 22 page service manual plus a 45 page parts manual. Please Note*** This is a Service Manual. If you need the instruction manual, you can find it here.