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9. NEEDLE PLATE AND NEEDLE POSITION
Calibration Point
Check
1. Remove the light cover.
2. Start the service program. ( See page 22)
3. In menu 1, Press Key No 2 (Step motor will move
the calibration point.)
4. At this time, the gap between the projection (a) on
the center gear and the bracket should be 0 (zero).
Adjust
1. Loosen the screw (b) on the step motor gear.
2. In menu 1, Press Key No 2 (Step motor will move
the calibration point.
3. Pressing the lower side of center gear lightliy so
that the gap between project (a) and bracket is 0
and tighten the screw (b).
3. Press the Key No. 3 (centre positon) and press
the Key No. 2 again, check the gap is 0.
Centre position
Check
1. In menu 1, Press Key No 1 (Step motor will move
to the calibration point and move to the centre
point.)
2. At this time, the needle should fall into the centre
of the needle plate hole.
If it is not so, adjust as follows:
Adjustment
1. In menu 1, Press Key No 1 .
2. Remove the presser foot and the light cover.
3. Loosen the center screw (c).
4. Turn the adjusting screw (d) left or right until the
needle falls center position into the hole.
• When you turn the screw to the right, needle will
move to the left.
• When you turn the screw to the left, needle will
move to the right.
5. Retighten the screw (c) and re-check the position
of needle.
NOTE
At assembling, the marks of center gear and zigzag
cam should be aligned.
10
Settings
3
4
1
3
4 5
b
a
d
c
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