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

5b Electronic balance calibration:
What to test:
•
Zero feed
•
Use a double-layered cotton piece for the sewing-off, place it under
the presser foot and start machine. The fabric must not move now.
What to adjust:
•
Use icons 1-5 to set zero feed to lowest forward and reverse feed.
•
The default value is 3.
•
Press OK to save the value. This brings you back to menu 5.
•
Press ESC to return to menu 5 without saving.
Repairing note:
•
Make sure that the basic mechanical settings are correct. (p. 58)
5b Mechanical balance fine-adjusting:
What to test:
•
The number "9" pattern.
•
Thread machine, place two-layered sewing-off cotton under the
presser foot and start machine.
•
The "9" pattern must now be stitched in such way that the ends
meet.
What to adjust:
•
Fine-adjusting.
•
Turn balance shaft C in such way that the "9" is sewn correctly,
i. e. ends of stitching lines meet exactly.
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 clockwise
Turn
T rn
Turn counter clockwise
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