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【
10
】
STITCH FORMATION ADJUSTMENT
10-1 Thread tension adjustment
Thread tension varies according to sewing
conditions such as kinds of fabrics, threads,
sewing width, and stitch length.
Adjust by knob A.
Rotate them clockwise to tighten the threads
and vice versa.
10-2 Position of the needle thread take-up & thread eyelet
*
Adjust by referring to below illustration when the needle take-up is at its extreme
position to the bottom.
JJ5004
JJ5005
JJ5014
出荷時は調整済みです。
Already adjusted
出荷時は調整済みです。
Already adjusted
7
7
合わします。
Adjust
合わします。
Adjust
16
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10-3 Looper thread take-up adjustment
The below table is the dimension when the lower looper is at the right position.
504
505
514
504
514
504
514
Stitch type
S
H
H
E
Looper capacity
A
21.5
21.5
21.5
21.5
B
14.5
14.5
17.5
17.5
C
20
28
28
25
D
29
29
29
29
E
28
28
25
30
F
Left
Left
Left
Right
G
Left
Left
Left
Right
Содержание JJ Series
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Страница 29: ...J JJ J s se er ri ie es s INSTRUCTION Industrial Sewing Machines First edition July 2016 No KX16017 JJ50 ...