SPECIAL ATTACHMENTS - Quiz

1) What is the reasons of upper thread breaking?

Set the bobbin in correct position Thread the needle properly Excess oil Oil and clean periodically

2) What is the remedy for tanglrf thread of the beginning of stitch?

Under thread should be drawn out Excess oil Select the correct needle Clean the feed dog

3) How is the remedy for lower thread breaking?

Sharp needle Blunt needle Select the correct thread Needle too small

4) What is the defects on fabric puckering?

Take up spring broken Blunt needle Excess oil on shuttle Bobbin too full

5) What is the remedy for needle breaking?

Set the presser foot properly Take - up spring weak Lower tension too tight Feeddog dirty