Operation Manual

C.
OPerating
the
machine
a.
Test
sewing
After
threading, be
sure to make
a
test sewing
before actual
operation.
Procedure
1.
Hold the
4
threads by your left
hand and
turn the
pulley
2
or
3
turns
slowly towards
you
with your
right
hand.
Checking
the threads being interlocked.
2. Insert
the
cloth
under the presser
foot
up
to
the
edge of the upper
cutter and
start
sewing
slowly.
b.
Thread tension
adjustment
(Normal
hemming)
The
correct thread
tension varies depending
on the fabric
and
type and
thickness
of
the
thread
and must
therefore
be adjusted
accordingly.
By
refering
to the chart
below it will
assist
you in achieving
the
best results.
c.
Dial chart
for
thread
tension
adjustment
Thread
Fabrics
L.needle
R.needle
R.lper L.looper
1
ft
Thread Dial for Dial
for Dial for
Dial
for
Presser
L.needle R.needle
Rjooper Liooper
Spun Spun Spun
Spun
3 3 3
3
I
Broad iply
8O 8O
8O 8O
for
Denim
2plies
4 4 3
3
Normal
hemming
Georgette 2plies
•
2 2
3
3
J
I
Spun Spun Spun
Spun
Broad
iply
I
*80
*80 *80
*80
— 3
3 10
for
Roll
Georgetteiply
— 2
3
10
hemming
• Narrow hemming
i
• Fold-over hemming
9