Kenmore 385.16644 El Manual Del Propietario página 47

Securing ends
To avoid unraveling, it is necessary to leave a thread chain
5 cm (2") long at the beginning and end of the seam. To
secure the beginning and end of the seam choose one of
the following methods.
At the beginning
A. Separate the end of threads and knot.
B. Thread the chain through a large eyed needle, and weave
that chain through the overlock stitches on the fabric.
C. Apply a small amount of seam sealant (Fray Check
TM
or Fray-No-More
TM)
at the edge of the fabric. Cut the
chain at the edge of the fabric.
Backstitching
Before putting your fabric in the machine, sew a thread
chain about 5 cm (2") long behind the needle.
Put your fabric in the machine. Then serge a few stitches
and stop.
41, Raise the presser foot and bring the thread chain to the
left around and under the presser foot.
Place the thread chain between the presser foot and
upper knife, holding it in position as you lower the presser
foot to sew.
After sewing about 2.5 cm (1 "), move the chain to the
right and under the upper knife, cutting the chain as you
sew,
At the end
You can use the same methods as above to secure the end
of the seam except" backstitching ". You can also use the
methods shown below.
4, Serge one stitch off the end of the seam.
41, Raise the needle and presser foot, and gently pull the
threads off the prong.
_, Turn the fabric over so that the under side is up.
_, Serge about 2.5 cm (1 ") over stitching and angle off the
fabric.
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