ZOJE 5780BK, Operation Manual

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► 注意：调整了底线张力之后，请确认存储器开关的上线张力设定。
（
5
）底线张力的调整
/Adjusting the bobbin thread tension
在梭壳穿线口 在上方的位置，把底线向上拉出之后，请按照下列的方法调整底线张力。
直锁眼缝 0.05 ～ 0.15N 手拿从梭壳出来的线头，轻轻地上下摆动时，梭壳就稍稍下
降
锯齿边缝
0.15
～
0.3N
手拿从梭壳出来的线头，用稍稍强的力量摆动时，梭壳才下
降
1)
把线张力螺钉 向右转动，底线张力变强，向左转动，底线张力变弱。
2) 使用化纤缝纫机线时，请把张力稍稍减弱，棉纱线时请稍稍加强。因为本机装有防止
空转弹簧，所以装上旋梭之后的线张力请再调强
0.05N
左右。
Adjust the bobbin thread tension as given below when the bobbin thread is pulled up at the position
where thread slit of bobbin case comes up .
Purl stitch 0.05 ～ 0.15N To such an extent that bobbin case quietly comes down when holding
thread end coming from bobbin case and shaking it quietly up and down.
Whip stitch 0.15
～
0.3N To such an extent that bobbin case barely comes down when holding thread
end coming from bobbin case and shaking it somewhat strongly.
Turning tension adjust screw clockwise will increase bobbin thread tension and turning it
counterclockwise will decrease the tension.
Adjust the bobbin thread tension to lower for synthetic filament thread, and to higher for
spun thread .The thread tension is higher by approximately 0.05N when the bobbin case
is set to the hook since idle-prevention spring is provided.
► CAUTIO N ： When bobbin thread tension is adjusted, check the needle thread tension
setting of the memory switch.
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