Operation Manual

blue
I
green
I
wide
-4,5
N
+2
blue
I
green
1
red
I
yellow
narrow
N
j
+2
The
right
looper
thread
(red)
is
visible
on
The
left
looper
thread
(yellow)
is
too
the
reverse
side
of the
fabric,
loose.
Increase
the
tension
of
the
red
thread.
Increase
the
tension
of the
yellow
thread.
3-thread
decorative
seam
serging,
The
needle
thread
is
too
tight.
FLATL.OCK
_______________________________________
Reduce
the
tension
of
the
respective
red
j
yellow
j
needle
thread.