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Sewing Overlock Stitches on Extra
Heavyweight Fabrics
Lock the upper knife to provide maximum cutting
capability.
1. Hand turn the handwheel to lower the needle bar to
its lowest position.
2. Open the side cover.
3. Use the Allen screwdriver to turn the screw
clockwise until the upper knife cannot be
disengaged.
4. Close the side cover. Sew.
NOTE:
After sewing extra heavyweight fabric, always turn the
screw counterclockwise to unlock upper knife for
normal operation.
NOTE:
Cutting width cannot be adjusted when the upper knife
is locked.
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