Bernina B 590 Service And Maintenance Manual page 33

3.9.2 Zigzag stitch (default settings)
Needle-thread stitching target state
Criteria
• Is the stitch formation symmetrical?
• Is the stitch formation on both sides of the fabric regular?
• Does the bobbin thread show on the right side of the fabric? It shouldn't.
• Do the threads interlock in the middle or on the wrong side of the fabric?
• Is the interlocking of the needle thread and bobbin thread on the wrong side of the fabric regular?
• Does no puckering occur?
• Is the seam free of skipped stitches?
3.9.3 Satinstitching (stitch width 5.0, stitch length 0.4)
Needle-thread stitching target state
Criteria
• Is the stitch formation symmetrical?
• Is the stitch formation on both sides of the fabric regular?
• Does the bobbin thread show on the right side of the fabric? It shouldn't.
• Do the threads interlock in the middle or on the wrong side of the fabric?
• Is the interlocking of the needle thread and bobbin thread on the wrong side of the fabric regular?
• Does no puckering occur?
• Is the seam free of skipped stitches?
BERNINA International AG Seestrasse 161 CH-8266 Steckborn
DRAFT – VERSION
Bobbin-thread stitching target state
Bobbin-thread stitching target state
Schweiz Seite 33 von 172