White 1570 manual Not using a ball point needle for elastic

	Improper upper threading.
	Not using a ball point needle for elastic
	and thin fabric.
	Improper tension.
	Sewing foot not suitable for the work.
Stitches not	Upper thread tension too loose.
locked	Improper tension of lower thread.
	Improper needle for thread.
Wrinkled	Upper or lower thread tension too
fabrics	tight.
	-
	Improper threading of upper or lower
	thread -
	Needle too thick for fabric.
	Stitch length too long for fabric.
Fabric not	Lint jamming on feed dog.
moving	Feed dog is lowered.
	Stitches too close.
	Pressure regulator too light.
Breaking	Improper needle setting
needle	Needle bent.
	Needle clamp screw too loose.
	Upper thread tension too tight.
	Needle too thin for fabric or/and thread.
	Changing pattern or width of stitch
	when needle is down in fabric,
	Setting stitch width more than 3.5
	when sewing with twin needle.
	Presser foot attached improperly.
Light going	Not plugged in properly.
out	Power supply switch is not on.
	Light bulb burnt out.

See Page 9-10-15

See Page 10

See Paqe i

See Page 59

Bring needle to high test

position.

See Page 7

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