Mechanical Balance Fine-Adjusting; Electronic Balance Fine-Adjusting - Fritz Gegauf Bernina artista 630 Service Manual

5b Mechanical balance fine-adjusting:
What to test:
•
The (stitch counter) darning program.
•
Thread machine, place two-layered sewing-off cotton under the
presser foot and start machine.
•
The stitch formation must form a virtual straight top and bottom line.
Picture 5
Repairing note:
•
Make sure that the basic mechanical settings are correct. (p. 58)
•
Use the icons 1-5 to increase or decrease the balance value by one unit respectively.
•
Turn balance shaft C in such way that the "9" is sewn correctly, i. e. stitching line ends meet
exactly.
Picture 5
5b Electronic balance fine-adjusting:
What to test:
•
The "leaf" pattern.
•
Thread machine, place two-layered sewing-off cotton under the
presser foot and start machine.
•
The leaf pattern outline must be stitched in such way that the
stitching line ends meet exactly.
•
The needle penetration points at the pattern beginning and ending must match. Picture 4
Repairing note:
•
Make sure that the basic mechanical settings are correct. (p. 58)
•
Use the icons 1-5 to increase or decrease the balance value by one unit
respectively.
•
Turn balance shaft C in such way that the "9" is sewn correctly, i. e.
stitching line ends meet exactly.
Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc
correct
Pict. 4
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