Brother PC 8500 manual Trouble with threads and stitches, 181

Trouble with threads and stitches

Before calling for service, check the following items. If the problem still persists, contact the place of purchase or your nearest Brother dealer.

Symptom	Probable cause		Remedy
1. Upper thread breaks	1. Upper threading is not correct.		1.	Re-thread upper thread.
	2.	Upper thread is tangled.	2.	Remove thread ends in the race or
				shuttle.
	3.	Spool of thread is not correctly set.	3.	Set spool of thread correctly.
	4.	Correct needle is not used.	4.	Change to proper needle.
	5.	Shuttle is damaged.	5.	Contact service center.
2. Bobbin thread breaks	1. Upper thread is tangled.		1.	Remove thread ends in the race or
				inner shuttle or from around spool pin.
	2.	Bobbin is not threaded properly in the	2.	Set bobbin properly and pull out the
		shuttle.		bobbin thread.
3. Skipped stitches	1. Needle is not correctly inserted.		1.	Insert needle properly.
	2.	Correct needle is not used.	2.	Change to proper needle.
	3.	The combination of fabric, thread and	3.	Check the “RELATED CHART OF
		needle is not correct.		SEWING FABRICS, THREAD AND
				NEEDLE” on page 172.
	4.	Dust is clinging under the needle plate.	4.	Remove dust by cleaning with a brush.
	5.	Upper threading is not correct.	5.	Re-thread upper thread.
4. Fabric puckers	1.	Threading is not correct	1.	Re-thread upper and bobbin thread
				correctly.
	2.	Correct needle is not used.	2.	Change to proper needle.
	3.	Combination of fabric, thread and	3.	Check “RELATED CHART OF
		needle is not correct.		SEWING FABRICS, THREAD AND
				NEEDLE” on page 172.
	4.	Check if thread tension is set at	4.	Refer to “THREAD TENSION” on page
		“AUTO” position,		29.
5. Inability to thread needle	1. Needle position is not collect.		1.	Set needle at proper position using
				“NEEDLE POSITION” button.
	2.	Hook of needle threader does not fit	2.	Set needle at proper position using
		into the eye of the needle.		“NEEDLE POSITION” button.
6. Inability for thread tension control	1. Upper threading is not correct.		1.	Re-thread upper thread.
	2.	Set of bobbin thread is not correct.	2.	Set bobbin properly and pull out the
				bobbin thread.
	3.	Combination of fabric, thread and	3.	Check “RELATED CHART OF
		needle is not correct.		SEWING FABRICS, THREAD AND
				NEEDLE” on page 172.
	4.	Check if the thread tension is set at	4.	Refer to “THREAD TENSION” on page
		“AUTO” position.		29.

181

Setting Up
Sewing
Stitches	Utility
Stitches	Decorative	Characters and
Embroidering
Patterns	Embroidery	Editing
Retrieving
Stitch TM	Custom	My
Maintenance
Messages	Error
shooting	Trouble
Chart	Sewing
in Machine)	(Programmed	Patterns
Card)	(Memory	Patterns