To avoid 80% of these problems, follow this seasonal maintenance schedule:
If you hear the motor whirring but the needle stays still, the machine might be in . singer 974 sewing machine problems
Using a thin needle on heavy denim (or vice versa) will cause bending. Always match your needle size to your fabric weight. 3. Tension and Stitch Quality To avoid 80% of these problems, follow this
The bobbin winder spindle remains stationary when you push it to the right. The hand wheel spins but the winder doesn’t. Remove the needle plate and use a small
Remove the needle plate and use a small brush to clear out "dust bunnies" from the feed dogs and bobbin area.
– usually due to improper threading or burred hook .
If you see loops on the bottom of the fabric, tighten the top tension dial.