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Stitch Length
The stitch length (SL) may be adjusted depending on
the fabric weight and fiber content. Stitch length may
be set between 0.5 and 5. Set a shorter stitch length
for lightweight or sheer fabrics. Set a longer stitch
length for heavyweight or bulky fabrics.
NOTE:
Stitch length should be increased to 3.5 or 4 on heavy
fabrics or when sewing over bulky seams while
hemming.
SL
Sewing Overlock Stitches on Extra
Heavyweight Fabrics
Lock the upper knife to provide maximum cutting
capability.
IMPORTANT:
Switch off the machine when locking the upper knife.
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.