Servicemanual_aurora_435_450_english_V3_032530.50.04_Korrektur.doc 45
SP 8.2 '9' balance (Electronical fine adjustment)
SP 8.3 Balance leaf pattern
What to test:
SP 8.2 - 8.3 Fine adjustment of balance
What to adjust: Make sure that the basic mechanical
settings are correct.
Press button 8 twice in the basic program
for the “9” pattern or three times for the leaf
pattern.
Press key 18 to confirm selected test.
Place fabric under presser foot and actuate
foot control.
Press OK key to exit with saving or ESC
key to exit without saving.
Desired status: Each test type is displayed in the matrix
(symbol g) until activated by pressing key
18 (start/stop).
The balance symbol lights. symbol j
Zero feed: fabric should not move under
the presser foot.
Balance offset is displayed in the 7-
segment stitch width block display. The
offset value can be in the range of 1 to 16,
the basic setting is 8. symbol d
The balance offset values can be reduced
(keys 24 + 25) or increased (keys 25 + 26)
by one unit.
fine adjustment:
Turn balance shaft (C) in such a way that
the '9' (middle of figure D) is stitched
correctly. For a finer adjustment, the leaf
pattern (E) can be used. The points of the
leafes must be together.
Repair note:
• Set offset value to lowest forward or
reverse feed value.
• Press keys 24 and 25 simultaneously to
reduce the value by one unit.
• Press keys 25 and 26 simultaneously to
increase the value by one unit.
C
E
D
9
9
9
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