Many reasons for this. Old bent needle. The needle in serted incorrectly. Make sure it is pushed high in the shaft. Ifit has a flat side make sure it is inserted correctly. Could be the wrong thread for that size needle. Change size of needle or thread, or material needs a thicker needle. The foot may not be attached correctly.The presser foot is not strong enough.(adjust pressure) Make sure the machine is actually threaded correctly. It's an easy mistake to make. Hope this helps. :-)
Answers & Comments
Many reasons for this. Old bent needle. The needle in serted incorrectly. Make sure it is pushed high in the shaft. Ifit has a flat side make sure it is inserted correctly. Could be the wrong thread for that size needle. Change size of needle or thread, or material needs a thicker needle.
The foot may not be attached correctly.The presser foot is not strong enough.(adjust pressure) Make sure the machine is actually threaded correctly. It's an easy mistake to make. Hope this helps. :-)