JUKI LH-3500A series Instruction Manual page 28

[A type and F type]
(1) When you want to change the stroke of the thread take-up spring
4
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, for LH-3528A, 3528A-7 make sure that thread tension disks !1 and !2 securely rise
when hand lifter lever !0 is turned in the direction of the arrow.
(2) When you want to change the tension of the thread take-up spring
3
4
7
5
9
1
2
3
1
2
!1
8 !2
) Tenson of thread take-up sprng 1 on the rght
s adjustable by turnng sprng stud 2 to the rght
to ncrease or to the left to reduce.
2) Tenson of thread take-up sprng 3 on the left s
adjustable by turnng sprng stud 4 to the rght
to ncrease or to the left to reduce.
– 26� –
!0
To turn