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Check your trial run
4/3 Thread OL
1. Upper looper thread (purple).
2. Lower looper thread (red).
3. Right-hand needle thread (green).
4. Left-hand needle thread (beige).
Perfect stitch formation is when both
looper threads meet at the fab-
ric edge. The needle threads form
straight stitches for a stretchy and
durable seam.
Thread tension /
正确的缝迹
Thread tension
Thread tension should be properly adjusted
to suit the various types of work.
The ideal tension setting for most fabrics and
threads is between 3 and 5. However this
can vary quite considerably when special
threads such as filament, woolly nylon, but-
tonhole twist (cordonnet), pearl yarn or deco-
rative threads are used. Only use decorative
threads in the looper. The thread must move
easily and without resistance through the
looper eye.
Infinitely variable adjustments can be made
from 1 - 9.
Turn the dial downwards for less tension.
Turn the dial upwards for more tension.
调整线张力
不完全的缝迹可通过夹线片调节盘（1 ～ 9）
来进行调节修正。
一般普通的面料的夹线刻度在 3 ～ 5.
* 如果是羊毛尼龙线、粗丝线、珍珠纱或装
饰线等可能会有所变化。
向右转动调节盘张力弱。
向左转动调节盘张力强。
检查双针 4 线包缝
1.上弯针线（紫色）。
2. 下弯针线（红色）。
3.右针线（绿色）
4.左针线（黄色）。
在面料边上由上弯针线和下弯针线咬
合在一起。
左针线和右针线则是在面料的正面和
反面都能看见的浮动的线。
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