39
Adjusting the thread tension
Turn the tension dials by quarter or half number, then test sew again and check the result.
• The loops are formed on the underside.
Tighten the upper looper thread tension, (purple) or loosen the lower looper thread tension, red (A).
• The loops are formed on the upper side.
Tighten the lower looper thread tension, (red) or loosen the upper looper thread tension, purple (B).
• The right-hand needle thread forms loops on the underside.
Tighten the right-hand needle thread tension, green (C).
• The left-hand needle thread forms loops on the underside.
Tighten the left-hand needle thread tension, beige (D).
• The edge of the fabric curls up, tension of both looper threads is too tight:
Loosen upper and lower looper thread tensions, purple and red (E).
• The fabric puckers during sewing:
Loosen the right- or left-hand needle thread tension, green or beige (F).
调节线张力
以 1/4 或是半圈来旋转调节刻度盘,进行试缝并确认缝制样品。
•
上弯针出现在面料的反面 :
加强上弯针线张力(紫色)或减弱下弯针线张力(红色)(A)。
•
下弯针线出现在面料的正面 :
减弱上弯针线张力(紫色)或加强下弯针线张力(红色)(B)。
•
右针线在面料反面呈线环状 :
加强右针线张力绿色(C)。
•
左针线在面料反面呈线环状 :
加强左针线张力黄色(D)。
•
在缝迹中面料被卷起 :
同时减弱上弯针线(紫色)和下弯针线(红色)(E)。
•
面料起皱 :
同时减弱右针线(绿色)和左针线(黄色)(F)。
Thread tension /
线张力