Operation Manual

Incorrect
thread
tensions:
The
tension
range of the
thread
tensions
lies
between
—5
and
+5.
Depending
on
the
appearance
of
the
seam,
the
thread
tension
must
be
turned
in
the
—
or
+range.
Direction
+
=
ncreased
tension
Direction
—
=
decreased
tension
Two-thread
chainstitch
The
thread
tension
of
needle
A
is
too
weak. The
blue
thread
tension
must
be
turned
in
direction
+.
Needle
thread
B
or
C
3-thread
overedge
seam
(wide)
The
thread
tension of
needle
B
is too
weak.
The
pink thread
tension
must be
turned
in
direction
+.
Left
looper
thread
Right
looper thread
3-thread
overedge
seam
(narrow)
The
right
looper thread
is
too
tight
(green
thread
tension)
or
the
left
looper
thread
is
too
loose
(yellow
thread
tension).
It
is
also
possible
that
both
tensions
are
incorrectly
set.
Adjust
tensions
accordingly!
I
I
I
I
I
Needle
thread A