Bernina 800DL Manual - Page 10

Buttonholes Buttonhole foot 033 Needle: 80-70 Thread: 30 or 50 For sewing a buttonhole, thread bottom cotton through hole in finger of bobbin case. 10 0 12 3 4 -18 0 123 4 17 Adjustment of the Buttonhole Two mechanical spring settings have been built-in for the buttonhole: one for zigzag 1,75 satin stitch for the beads of the buttonhole, the other for zigzag 3-312/ width for the bar tacks at each end of the buttonhole. By turning the zigzag knob slightly the spring settings can easily be felt. Sewing the Buttonhole Zigzag 1,75 (Spring setting) Mark desired buttonhole length on material. Set the required buttonhole length with the guide on the buttonhole foot. Move needle downwards to foot level and check that needle comes to middle of foot opening. If not do one stitch, turning handwheel by hand. But never change zigzag or needle position. 1. Satin Stitch: Sew first bead of button- hole to required length. Set needle in work in the middle of the foot. Lift foot. Turn work completely clock- Needle Position: left wise. Lower foot again. 1. Bar Tack: Lift needle out of work. Set zigzag to approx. 3 width (using The buttonhole satin stitch spacing can be accurately set with the stitch length spring setting). Hold work firmly. Sew stitches for bar tack. adjusting knob (19). 2. Satin Stitch: Lift needle out of work. Turn knob (19) clockwise to the right until it stops. The marking line on the knob is vertical (stitch length = 0). Then Set zigzag back on to 1,75 (using spring setting) and sew satin stitch for second bead. you can set the satin stitch spacing - 2. Bar Tack: Lift needle out of work. depending on material and thread - by Adjust zigzag again to width approx. turning knob (19) to the left. 3 (using spring setting). Hold work It is best to check the satin stitch spac- firmly. Sew stitches for bar tack. ing on a piece of spare material before Finishing off: Set zigzag on 0 and sew a starting to sew. few stitches, still holding work firmly.