Helpful Hints - Singer 4166 Instruction Book

HELPFUL HINTS

PROBLEM
Upper thread
breaks
Lower thread
breaks
Machine skips
stitches
Fabric puckers
Machine makes
loose stitches
or loops
Threader does
not thread
needle eye
Machine does
not feed
properly
Needle breaks
Machine runs
with difficulty
Machine will not
run
CAUSE
Machine not properly threaded.
Thread entwined around bobbin.
Needle inserted incorrectly.
Thread tension too tight.
Thread of incorrect size or poor
quality.
Bobbin threaded incorrectly.
Bobbin wound unevenly or too
full.
Dirt on the bobbin holder.
Needle inserted incorrectly.
Bent or blunt needle.
Incorrect size of needle.
(on stretch fabric)
Machine not properly threaded.
Bobbin threaded incorrectly.
Blunt needle.
Thread tension too tight.
Bobbin threaded incorrectly.
Machine not properly threaded.
Tension not adjusted properly.
Needle is not raised.
Needle inserted incorrectly.
Bent needle.
Feed dogs are lowered.
Lint and dust accumulated around
feed dogs.
Fabric pulled while sewing.
Needle is hitting the presser foot.
Needle inserted incorrectly.
Incorrect size needle or thread for
fabric being sewn.
Dirt or lint accumulated in the hook
race and feed dog.
Cord not plugged into electrical
outlet.
Power switch is not turned on.
Bobbin winder spindle is pushed to
the right.
Presser foot is not lowered.
Buttonhole Sewing Mode;
Buttonhole lever is not lowered
completely.
Buttonhole foot is not attached.
CORRECTION
Re-thread machine.
Remove entwined thread.
Re-insert needle.
Readjust thread tension.
Choose correct thread.
Re-thread the bobbin.
Rewind the bobbin.
Clean the holder.
Re-insert needle.
Insert new needle.
Choose correct size needle
for fabric.
(use stretch needle)
Re-thread machine.
Re-thread the bobbin.
Insert new needle.
Readjust thread tension.
Re-thread the bobbin.
Re-thread machine.
Readjust thread tension.
Raise the needle.
Re-insert needle.
Insert new needle.
Raise the feed dogs.
Clean the feed dogs area.
Do not pull fabric.
Select correct foot and pattern.
Re-insert needle.
Choose correct size needle
and thread.
Remove the needle plate
and bobbin holder and clean
the hook race and feed dog.
Insert plug fully into outlet.
Turn on the switch.
Push spindle to the left.
Lower the foot.
Lower the buttonhole lever. Lower the buttonhole lever.
Attach the buttonhole foot.
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