When the thread became tangled under the bobbin winder seat
If the bobbin winding starts when the thread is not passed under the pretension disk of the bobbin-winding thread guide correctly, the thread may become tangled under the bobbin winder seat.
(2) Bobbin winder seat
- Do not remove the bobbin winder seat even if the thread become tangled under the bobbin winder seat. Otherwise, the cutter in the bobbin winder seat may be damaged.
Do not remove the screw on the bobbin winder guide post, otherwise the machine may be damaged; you cannot wind off the thread by removing the screw.
(1) Screw of the bobbin winder guide post
Stop the bobbin winding.
Cut the thread with scissors beside the bobbin-winding thread guide.
(1) Bobbin-winding thread guide
Slide the bobbin winder shaft to the left, and then remove the bobbin from the shaft and cut the thread leading to the bobbin in order to be able to completely remove the bobbin from shaft.
Hold the thread end with your left hand, and wind off the thread clockwise from under the bobbin winder seat with your right hand as shown below.
Wind the bobbin again.
Make sure that the thread passes under the pretension disk of the bobbin-winding thread guide correctly.