Operation Manual
2-thread
overeoge
seam
er
n
Adjustable
range
5.2
to
7.2
mm
Adjustable
range
3
to
5
mm
r
is
Left
needle
Standard
seam
width
N
Rght
needle
Standard
seam
width
N
B
/
/
/
/,
/1
/
‘
The
left-hand
llustration
shows
the
2-thread
oeredge
seam
with
correctly
set
thread
tensions.
Possible
correction
requirements:
1.
Looper
read
A
is
too
loose
(yellow
thread
tension>.
2.
Needle
thread
B
is
too
tight
(blue
or
green
thread
tension>.
3.
Both
tensions
have
to
be
corrected.
1.
Looper
thread
A
is
too
tight
(yellow
thread
tensIOnl
2.
Needle
thread
B
is
too
loose
blue
or
green
tnread
tension).
3.
Both
tensions
have
to
be
corrected.
19