Necchi HD22 Instruction Book page 39

Condition
Seam Puckering
Stitches form loops below
the work.
The cloth is not feeding
smoothly.
The machine does not work.
The buttonhole stitches are
not balanced.
1. The needle thread tension is too tight.
2. The machine is not threaded correctly.
3. The needle is too heavy for the cloth being sewn.
4. The stitches are too coarse for the fabric being sewn.
5. The presser foot pressure is not correctly adjusted.
* When sewing extremely light weight materials, place a sheet of paper underneath the fabric.
1. The needle thread tension is too loose.
2. The needle is either too heavy or too fine for the thread.
1. The feed dog is packed with lint.
2. The presser foot pressure is too weak.
3. The stitches are too fine.
4. The feed dog is not raised after "Drop feed" has been used.
1. The machine is not plugged in.
2. A thread is caught in the hook race.
3. Stop motion knob is disengaged for the bobbin winding.
1. The stitch length is not suitable for the fabric being sewn.
2. The work is being pulled or held back.
Cause Reference
See Page 17
See Page 15
See Page 11
Make the stitches
denser.
See Page 7
See Page 17
See Page 11
See Page 35
See Page 7
Make the stitches
coarser.
See Page 8
See Page 4
See Page 34
See Page 13
See Page 18
Do not force the
fabric for guiding
37