Adjust adjustment screw 2 of the amount of bobbin thread to be wound round the bobbin so that the bobbin is wound with thread about 80%.Turn the adjustment screw 2 clockwise to increase the bobbin thread amount or counterclockwise to decrease it.
用绕线量调节螺丝2进行调节,让线绕到80% 。向右转动绕线量调节螺丝2绕线量变多,向左转动则变小。
Decrease the bobbin thread tension.
请调弱底线张力。
The bobbin thread tension is too high.
底线张力过强。
Remove machine basting by snipping the top thread at frequent intervals and pulling out the bobbin thread first.
拆除机制粗缝的方法:先抽出底线,后剪断间隔处的面线即可。
Increase the bobbin thread tension.
请调强底线张力。
Turn thread tension screw 2 toward A to increase the bobbin thread tension, or toward B to decrease it.