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Needle swing (Parabola)

Standard
The sideways movement of the needle must be equal completed in the up and down motion.
When the needle is in the descending stroke sideways end movement, this at the left side, turn the zig-
zag width dial from 5 - 0 and back, the needle movement should be less than 0.1mm.
Adjustment
• Loosen the three zigzag base assembly screws
.
• Align the upper shaft gear
and the zigzag cam gear
.
• Tighten the three zigzag base assembly screws
.
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