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AZ8600SD
6.Adjustment of sewing machine
6.2 Looper thread tension for overlock stitch
⑪
⑨
④
⑤
⑩
⑧
⑦
⑥
T
L
L
L
L
L
L
T
T
T
T
L
T
T
②
③
①
A
B
Fig. 6-3
The standard position of each looper thread eyelet:
Upper looper supplementary thread eyelet ①
Move it to the extreme left.
Looper thread eyelet(left) ②
Position the part A horizontally.
Upper looper thread eyelet ③
Move its left end to mark ④ .
Lower looper thread eyelet ⑤
Position the center of the width B with mark ⑥ .
Looper thread pull-off ⑦
Move its right end to mark ⑧ .
Upper looper thread pull-off ⑨
Align the eye of the thread pull-off with the mark ⑩ when the lower looper moves to the
extreme right.
Lower looper thread pull-off ⑪
Tighten it with the screw at the center of the slot.
● To tighten the thread tension, move each thread eyelet or thread pull-off in the direction
“T”.
● To loosen the thread tension, move them in the direction
“L”.