Singer 9980 QUANTUM STYLIST Instruction Manual - Page 104

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HELPFUL HINTS PROBLEM CAUSE CORRECTION Page Machine not properly threaded. Re-thread machine. 32 Upper thread Thread entwined around bobbin. Remove entwined thread. 30 breaks Needle inserted incorrectly. Re-insert needle. 16 Thread tension too tight. Readjust thread tension. 42 Thread of incorrect size or poor quality. Choose correct thread. 16 Lower thread Bobbin threaded incorrectly. Re-thread the bobbin. 30 breaks Bobbin wound unevenly or too full. Rewind the bobbin. 28 Dirt or lint on the bobbin holder. Clean the holder. 100 Machine skips stitches Needle inserted incorrectly. Bent or blunt needle. Incorrect size of needle. (on stretch fabric) Re-insert needle. 16 Insert new needle. 16 Choose correct size needle for 16 fabric. (use stretch needle) Fabric puckers Machine not properly threaded. Bobbin threaded incorrectly. Blunt needle. Thread tension too tight. Re-thread machine. 32 Re-thread the bobbin. 30 Insert new needle. 16 Readjust thread tension. 42 Machine makes Bobbin threaded incorrectly. loose stitches or Machine not properly threaded. loops Tension not adjusted properly. Re-thread the bobbin. 30 Re-thread machine. 32 Readjust thread tension. 42 Stitch pattern is Presser foot is not suited for the pattern. distorted Thread tension is not balanced. Stitch is not balanced. Attach correct foot. 50- Adjust the thread tension. 42 Adjust the balance of the stitches. 98 Threader does not thread needle eye Needle is not raised. Needle inserted incorrectly. Bent needle. Raise the needle. 20 Re-insert needle. 16 Insert new needle. 16 Machine does Feed dogs are lowered. Raise the feed dogs 22 not feed properly Stitch length not suitable for fabric. Regulate stitch length. 46 Lint and dust accumulated around feed dog. Clean the feed dog area. 100 Needle breaks Fabric pulled while sewing. Needle is hitting the presser foot. Needle inserted incorrectly. Incorrect size needle or thread for fabric being sewn. Do not pull fabric. 36 Select correct foot and pattern. 50- Re-insert needle. 16 Choose correct size needle and 16 thread. Machine runs Dirt or lint accumulated in the hook race and Remove the needle plate and 100 with difficulty feed dog. bobbin holder and clean the hook race and feed dog. Cord not plugged into electrical outlet. Insert plug fully into outlet. 18 Power switch is not turned on. Turn on the switch. 18 Machine will not Bobbin winder spindle is pushed to the right. Push spindle to the left. 28 run Presser foot is not lowered. Lower the foot. 20 Buttonhole Sewing Mode; * Buttonhole lever is not lowered completely. Lower the buttonhole lever. 68 * Buttonhole foot is not attached. Attach the buttonhole foot. 68 104

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104
PROBLEM
Upper thread
breaks
Lower thread
breaks
Machine skips
stitches
Fabric puckers
Machine makes
loose stitches or
loops
Stitch pattern is
distorted
Threader does
not thread
needle eye
Machine does
not feed properly
Needle breaks
Machine runs
with difficulty
Machine will not
run
HELPFUL HINTS
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.
Attach correct foot.
Adjust the thread tension.
Adjust the balance of the stitches.
Raise the needle.
Re-insert needle.
Insert new needle.
Raise the feed dogs
Regulate stitch length.
Clean the feed dog 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.
Attach the buttonhole foot.
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 or lint 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.
Presser foot is not suited for the pattern.
Thread tension is not balanced.
Stitch is not balanced.
Needle is not raised.
Needle inserted incorrectly.
Bent needle.
Feed dogs are lowered.
Stitch length not suitable for fabric.
Lint and dust accumulated around feed dog.
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.
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