Brother computerized embroidery and sewing machine Remove the tangled thread. If, Fast, Race

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Symptom	Probable Cause	Remedy	Reference
	The upper thread was not
	threaded correctly (for example,
	the spool is not installed correctly,	Correct the upper threading.
	the spool cap is too big for the	Use the spool cap that best fits the	page 31
	spool being used, or the thread	size of the spool being used.
	has come out of the needle bar
	thread guide.)
	There are knots or tangles in the	Remove any knots or tangles.	-
	thread.
	The selected needle is not	Select a needle that is appropriate for
	appropriate for the thread being		page 39
		the type of thread being used.
	used.
	The upper thread tension is too	Loosen the upper thread tension.	page 62
	tight.
The upper thread
	The thread is tangled, for example,	Remove the tangled thread. If the
breaks.		thread is tangled in the bobbin case,	page 176
	in the bobbin case.
		clean the race.
	The needle is bent or blunt.	Replace the needle.	page 41
	The needle is incorrectly installed.	Correctly install the needle.
	The area around the hole in the	Replace the presser foot.
	presser foot is scratched, or has a	Contact your dealer or the nearest	-
	burr on it.	authorized service center.
	The bobbin case is scratched, or	Replace the bobbin case.		5
		Contact your dealer or the nearest	-
	has a burr on it.
		authorized service center.
		Incorrect bobbins will not work
	A bobbin designed specifically for	properly. Only use a bobbin	page 22
	this machine is not used.	designed specifically for this
		machine.
	The thread is not passed through	Correctly pass the thread through the
	the bobbin-winding thread guide		page 24
		bobbin-winding thread guide.
	correctly.
Bobbin thread
		Move the sewing speed controller to
does not wind
	Bobbin spins slowly.	the right (so that the speed will be	page 25
neatly on the
		fast).
bobbin.
	The thread that was pulled out	Wind the thread that was pulled off
	was not wound onto the bobbin	around the bobbin five or six times	page 25
	correctly.	clockwise.
	The bobbin thread is incorrectly	Correctly install the bobbin thread.	page 27
	installed.
The lower thread is	The bobbin is scratched or does
	not rotate smoothly, or has a burr	Replace the bobbin.	-
tangled or breaks.
	on it.
	The thread is tangled.	Remove the tangled thread and clean	page 176
		the race.

Troubleshooting 189