Put a spool of thread on the spool pin. Wrap the thread around – to the right of the bobbin winder tension disk. Wind the thread clockwise around the bobbin several times.
Why does my thread bunch up underneath?
Your Thread Tension Is Too Tight
Make sure that you are using the same weight thread in both your bobbin and upper thread. If you don’t, your tension can be uneven and cause you to get bunched-up thread under your fabric. … If your tension is too tight, it can pull your thread and break it.
Why does my sewing machine not pick up the bobbin thread?
If it is not in the correct position, the needle will not go down and pick-up your bobbin thread. … Also, make sure your bobbin is in correctly (not backwards) and that the upper tension disks of your machine are threaded correctly. Make sure the presser foot is up when seating the thread through the upper tension.
Does the bobbin thread go through the needle?
The thread enters the tension spring of the bobbin case. Pass the bobbin thread through the slot. Do not cut the thread with the cutter. While lightly holding the upper thread with your left hand, press (Needle position button) twice to lower and then raise the needle.
Why does my sewing machine keep jamming?
1 5 Reasons Why Your Sewing Machine Keeps Jamming: 1.1 Lack of tension on the upper thread. 1.2 Your machine is clogged at some point or place. 1.3 The needle is deformed or broken.
What is a Class 15 bobbin?
The Class 15 (A Style) Bobbin:
The Class 15 is about the size of an American nickel. Its diameter measures approximately 20.3 mm and has a width of approximately 11.7 mm. This bobbin has two flat sides and is available in both plastic and metal.
Why is my bobbin winding loosely?
If your bobbin does not wind quickly and smoothly when you press on your foot pedal, your bobbin winder might not be fully engaged. This can cause uneven winding. Make sure you push your bobbin pin all the way over or loosen your bobbin wheel completely to engage your bobbin winding mechanism.
Where do you insert the bobbin after threading?
Installing Bobbin Case in Machine
Insert the bobbin and case in the machine with the pigtail facing up. Push on the bobbin case until it snaps into place. Leave 2 –3 inches of thread hanging free. When the machine begins to sew, the thread will pull up on the first stitch.