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SEWING HINTS
See that the presser foot screw is securely tightened. It is
dangerous for the foot to vibrate loose while you are operat-
ing the machine.
Skipped stitches may be caused by a bent or blunt needle,
by incorrect positioning of the needle, the wrong size of nee-
dle, or by thread that is too heavy for the selected needle.
Breaking needles are usually caused by the operator pulling
on the fabric in an effort to help the machine feed. This ac-
tion will pull the needle out of line and it will strike the
presser foot or needle plate.
Breaking the upper thread may be caused by:
1– Incorrect threading
2– Not bringing up the bobbin thread correctly
3– Upper tension too tight
4– Bad needle, or clamped incorrectly
5– Needle rubbing against attachments or presser foot
6– Needle eye too small for thread
7– Starting the machine at full speed
8– Starting machine without take up lever at highest point
Breaking the lower thread may be caused by:
1– Incorrect threading of bobbin case
2– Too tight a tension
3– Bobbin wound too full to revolve freely
4– Not bringing up bobbin thread correctly
5– Hole in the needle plate damaged by needle strikes
Uneven stitches may be caused by:
1– Presser foot not resting evenly on material
2– Feed dogs not high enough
3– Too short a stitch
4– Pulling the cloth
5– Incorrect needle for the thread, or poor quality thread