AAASewing.com
36
Seam puckering
S t i t c h e s f o r m
loops
below the work
The cloth is not
feeding smoothly.
The machine does
not work.
The machine does
not run smoothly
and is noisy.
1. The needle thread tension is too tight.
2. The machine is not threaded correctly.
3. The needle is too heavy for the fabric
being sewn.
4. The stitches are too coarse for the fabric
being new line sewn.
* 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 stitches are too fine.
1. The machine is not plugged in.
2. Thread is caught in the hook race.
3. Stop motion knob is loosen for
bobbin winding.
1. Threads have been caught in hook
mechanism.
2. The feed dog is packed with lint.
See Page 14
See Page 12
See Page 15
Make the
stitches denser.
See Page 14
See Page 15
See Page 32
Make the
stitches coarser.
See Page 4
See Page 33
See Page 10
See page 33
See Page 32
Reference
Cause
Condition
Janome 7312 Instruction Manual
Janome Sewing Machine
www.aaasewing.com
Magnolia 7312 Owners Manual/ User Guide