6
bernette OVERLOCKER WORKBOOK
1. Thread the overlocker for a 4-thread overlock stitch using
thread colors to match the color-coded threading path on
the machine. Adjust all thread tension settings as indicated in
chart below.
2.
Fold the fabric in half to 3” x 6”.
3. For best results, raise the needles to their highest position
before stitching. To begin stitching, lift the front of the presser
foot with your thumb and slide the fabric under the presser
foot. Release the tip of the presser foot and begin stitching,
trimming the fold away. NOTE: Trimming a minimum of 1/4"
will result in a cleaner edge nish.
4.
Stitch to the end of the fabric. Continue stitching off the
fabric until you have a 3”- 4” thread chain. Cut thread chain
with scissors.
5. Examine the stitch formation:
• Blue: Loops should extend to the edge of the fabric
where they will interlock with the red loops of the
lower looper.
• Red: Loops should extend to the edge of the fabric,
interlocking with the blue loops of the upper looper.
• Yellow: Needle stitches should appear along the
inside edge of the stitch as straight stitches or tiny
“dots” of thread on the back.
• Green: Needle stitches should appear as a line of
straight stitching running through the middle of the
overlock stitching.
6. See following page for tension adjustment information.
Make any necessary tension adjustments and sew
another 4-thread overlock stitch. Record your setting
adjustments on the fabric if necessary.
4-THREAD OVERLOCK STITCH
Firm fabric, 6” x 6”
80/12
ELx705
4 Spools Serger Thread (B, R, G, Y)
4-Thread Overlock Stitch
Standard
thread tension setting machine setup
Left
NeedLe
Right
NeedLe
UppeR
LoopeR
LoweR
LoopeR
Stitch
LeNgth
cUttiNg
width
diffeReNtiaL
feed
RoLLed hem
LeveR
4 4 4 4 2�5 6 1 N
Left Needle
Right Needle
Upper Looper
Lower Looper
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