JUKI Sewing Machine - Winding the Bobbin Thread; Setting the Bobbin into the Bobbin Case

–
13
–
1) Install the bobbin in the bobbin case so that the
thread wound direction is clockwise.
2) Pass the thread through thread slit
A
, and
pull the thread in direction
B
. By so doing, the
thread will pass under the tension spring and
come out from notch
B
.
3) Check that the bobbin rotates in the direction of
the arrow when thread
C
is pulled.
4-3 Winding the bobbin thread
1) Insert the bobbin deep into the bobbin winder
spindle
1
until it will go no further.
2) Pass the bobbin thread pulled out from the
spool rested on the right side of the thread stand
following the order as shown in the gure on the
left. Then, wind clockwise the end of the bobbin
thread on the bobbin several times.
(In case of the aluminum bobbin, after winding
clockwise the end of the bobbin thread, wind
counterclockwise the thread coming from the
bobbin thread tension several times to wind the
bobbin thread with ease.)
3) Press the bobbin winder trip latch
2
in the
direction of
A
and start the sewing machine.
The bobbin rotates in the direction of
C
and the
bobbin thread is wound up. The bobbin winder
spindle
1
automatically as soon as the winding
is nished.
4) Remove the bobbin and cut the bobbin thread
with the thread cut retainer
3
.
5) To adjust the winding amount of the bobbin
thread, loosen the setscrew
4
and move the
bobbin winder adjusting plate
5
to the direction
of
A
or
B
. Then, tighten the setscrew
4
.
To the direction of
A
: Decrease
To the direction of
B
: Increase
6) In case that the bobbin thread is not wound
evenly on the bobbin, loosen the nut
6
and turn
the bobbin thread tension to adjust the height of
the thread tension disk
7
.
• It is the standard that the center of the bobbin is
as high as the center of the thread tension disk.
• Move the position of the thread tension disk
7
to the direction of
A
as shown in the gure on the
left when the winding amount of the bobbin thread on the lower part of the bobbin is excessive and to
the direction of
B
as shown in the gure on the left when the winding amount of the bobbin thread on
the upper part of the bobbin is excessive.
After the adjustment, tighten the nut
6
.
7) To adjust the tension of the bobbin winder, turn the thread tension nut
8
.
(Caution) 1. When winding the bobbin thread, start the winding in the state that the thread between the
bobbin and thread tension disk
7
is tense.
2. When winding the bobbin thread in the state that sewing is not performed, remove the
needle thread from the thread path of thread take-up and remove the bobbin from the
hook.
3. There is the possibility that the thread pulled out from the thread stand is loosened due to
theinuence(direction)ofthewindandmaybeentangledinthehandwheel.Becarefulof
the direction of the wind.
4-4 Setting the bobbin into the bobbin case
6
7
8
7
7
A
B
C
4
5
A
B
3
2
1
B
A
C