Operation Manual

Thread
chart
for
2-,
3-,
4-thread
overedge
seam
Material
Thread
Stitch
length
Light
materials:
Organdy,
light-knit
Cotton
No.
80-
100
2.0
to
4.0
mm
fabric.
Taffeta,
silk,
Silk
No.
80-
100
lining
materials
Synthetic
thread
No.
70-
140
Medium-heavy
materials:
Cotton
No.
60-100
2.0
to
4.0mm
Cotton,
tricot,
Silk
No.
50-100
linen,
dress
materials
Synthetic
thread
No.
70-140
Heavy
materials:
Tweed,
suit
materials,
Cotton
No.
40-
60
2.0
to
5.0
mm
(787)
denim,
heavy
cloth
Silk
No.
40-
60
2.0
to
4.0
mm
(788)
Synthetic
thread
No.
70-140
Knit
fabrics:
Cotton
No.
40-60
2.0
to
5.0
mm
(787)
Silk
No.
40-60
2.0
to
4.0
mm
(788)
Synthetic
thread
No.
70-140
Rolled
hem
with
Polyester
thread
No.
1
20-140
1
.0
to
2.0
mm
2
or
3
threads
Mercerized
thread
(bulk
thread)
Setting
the
stitch
length
on
the
Hobbylock
788
with
differential
feed
Open
work
support
1
2.
Hold
hand
wheel
9
fast
and
set
stitch-
length
adjustment
knob
25
at
the
stitch
length
desired
between
1
and
4
mm.
Standard
setting
N
is
3
mm.
Setting
the
stitch
length
on
the
Hobbylock
787
without
differential
feed
Open
work
support
1
2.
Hold
hand
wheel
9
fast
and
set
stitch
length
adjustment
knob
25
at
the
stitch
length
desired
between
1
and
5
mm.
Standard
setting
N
is 3
mm.
20