Singer 9960 instruction manual Helpful Hints, Problem Cause Correction

HELPFUL HINTS

PROBLEM	CAUSE	CORRECTION	Page
	Machine not properly threaded.	Re-thread machine.	16
Upper thread	Thread entwined around bobbin.	Remove entwined thread.	15
breaks	Needle inserted incorrectly.	Re-insert needle.	8
	Thread tension too tight.	Readjust thread tension.	21
	Thread of incorrect size or poor quality.	Choose correct thread.	8
Lower thread	Bobbin threaded incorrectly.	Re-thread the bobbin.	15
breaks	Bobbin wound unevenly or too full.	Rewind the bobbin.	14
	Dirt on the bobbin holder.	Clean the holder.	50
	Needle inserted incorrectly.	Re-insert needle.	8
Machine skips	Bent or blunt needle.	Insert new needle.	8
stitches	Incorrect size of needle.	Choose correct size needle for	8
		fabric.
	(on stretch fabric)	(use stretch needle)
	Machine not properly threaded.	Re-thread machine.	16
Fabric puckers	Bobbin threaded incorrectly.	Re-thread the bobbin.	15
	Blunt needle.	Insert new needle.	8
	Thread tension too tight.	Readjust thread tension.	21
Machine makes	Bobbin threaded incorrectly.	Re-thread the bobbin.	15
loose stitches or	Machine not properly threaded.	Re-thread machine.	16
loops	Tension not adjusted properly.	Readjust thread tension.	21
Stitch pattern is	Presser foot is not suited for the pattern.	Attach correct foot.	25-
distorted	Thread tension is not balanced.	Adjust the thread tension.	21
	Forward and reverse stitch is not balanced.	Adjust the forward and reverse	49
Threader does	Needle is not raised.	Raise the needle.	10
not thread	Needle inserted incorrectly.	Re-insert needle.	8
needle eye	Bent needle.	Insert new needle.	8
Machine does	Feed dogs are lowered	Raise the feed dogs	11
not feed properly	Stitch length not suitable for fabric.	Regulate stitch length.	23
	Lint and dust accumulated around feed dog.	Clean the feed dog area.	50
	Fabric pulled while sewing.	Do not pull fabric.	18
	Needle is hitting the presser foot.	Select correct foot and pattern.	25-
Needle breaks	Needle inserted incorrectly.	Re-insert needle.	8
	Incorrect size needle or thread for fabric	Choose correct size needle and	8
	being sewn.	thread.
Machine runs	Dirt or lint accumulated in the hook race and	Remove the needle plate and	50
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.	9
	Power switch is not turned on.	Turn on the switch.	9
Machine will not	Bobbin winder spindle is pushed to the right.	Push spindle to the left.	14
run	Presser foot is not lowered.	Lower the foot.	10
	Buttonhole Sewing Mode;
	* Buttonhole lever is not lowered completely.	Lower the buttonhole lever.	34
	* Buttonhole foot is not attached.	Attach the buttonhole foot.	34

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