– 6 –
) Stroke of thread take-up sprng
1
on the rght s adjustable by movng thread tenson No. 2 asm.
3
to the left or rght after loosenng thread tenson No. 2 setscrew
2
.
2) Stroke of thread take-up sprng
4
on the left s adjustable by movng thread tenson No. 2 asm.
6
to the left or rght after loosenng thread tenson No. 2 setscrew
5
.
3) Move thread tenson No. 2 asm.
3
and
6
to the rght to ncrease or to the left to decrease the
stroke of the thread take-up sprng.
When adjusting the stroke of thread take-up springs
1
and
4
, thread release pins
7
and
8
should not come in contact with disk release plate
9
.
In addition, make sure that thread tension disks
!1
and
!2
securely rise when hand
lifter lever
!0
is turned in the direction of the arrow.
4-9. Thread take-up spring
(1) When you want to change the stroke of the thread take-up spring
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
To turn
) Needle thread tenson
Turn thread tenson nut No. 2
1
clockwse to
ncrease or counterclockwse to reduce the
needle thread tenson.
4-8. Thread tension
2) Bobbn thread tenson
Turn tenson adjustng screw
2
clockwse to
ncrease or counterclockwse to reduce the
bobbn thread tenson.
1
2
7
8
9
!1
!2
!0
2
3
4
6
1
5