•
How
to
use
the
machine
*10
Order
of
pedal
operation
(Operation
of
machine)
The
peda!
can be operated
in
four
(4) steps.
(1)
Light
forward
step-on :
Low
speed
stitching
(inching).
(2) Deep step-on :
High
speed stitching. (3)
Neutral
: Stop at needle-
down
position.
(4) Kick-back : Stop at
needle-
up position after thread cutting.
• Speed adjustment is possible by
controlling
the amount of step-on between the above (1)
and (2). Direct kick-back
from
(2) to (4)
also ensures
normal
thread cutting.
11. How
to
treat
the
needle thread at
start
of
stitching
(1)
Open
stitching
When starting to stitch
without
having
the
upper thread held by
presser
foot, the end of
upper
thread
IS
stitched
to
the
reverse
side
of
the
cloth
together
with lower thread. In
this
case
start
the
first
2 - 3
stitches
very slowly to prevent
the
slip
out
of
the
thread
from
the
needle
hole.
(2) When upper thread held under pres
ser
foot
the
end
of
upper
thread
re
mains
on
the
surface
of
cloth.
For
this way of stitch, it is advisable to
pull out the sewn fabric to the other
side.
12.
Adjustment
for
length
of the
thread
taif
In case the length of the upper thread
tail is changed according to the stitching
condition, adjustment can be
made
by
pretension
spring pressure.
Tighten the tension; Short thread tail
Loosen
the
tension:
Long
thread
tail
• In case of using the cotton thread and
the thick polyester thread, change the
pretension spring with the thick one.
• In case of making
the
upper thread
further lengthen, make the thread
guide
operate.
How
to
operate
the
thread
guide
1.
Take
off
the
face plate and pull up
the
presser bar lifter.
2.
Attach
the
wire
in
the
accessory
(Hook the wire in holes of the bell
crank
and
the
thread
guide
as
shown
in Fig.)
Upper
thread
Lower
thread
Upper
thread
Upper
thread
Pretension
Inside
of
face
plate
Bell
crank
Wire
\
'Thread
guide
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