Thread and stitch problems

Before calling for service, check the following items. If the problem persists, contact the store where the sewing machine was purchased or your nearest service representative.

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 from race and

 

 

 

 

shuttle.

 

 

 

 

 

 

3.

Spool of thread is not correctly set.

3.

Set spool of thread correctly.

 

 

 

 

 

 

4.

Correct needle is not used.

4.

Install proper needle.

 

 

 

 

 

 

5.

Shuttle is damaged.

5.

Contact service representative.

 

 

 

 

2. Bobbin thread breaks

1. Upper thread is tangled.

1.

Remove thread ends from race and

 

 

 

 

inner shuttle and from around spool

 

 

 

 

pin.

 

 

 

 

 

 

2.

Bobbin is not threaded properly.

2.

Re-thread bobbin thread.

 

 

 

 

3. Skipped stitches

1. Needle is not correctly inserted.

1.

Insert needle correctly.

 

 

 

 

 

 

2.

Correct needle is not used.

2.

Install proper needle.

 

 

 

 

 

 

3.

The combination of fabric, thread and

3.

Check “FABRIC/THREAD/NEEDLE

 

 

needle is not correct.

 

COMBINATIONS” chart on page 19.

 

 

 

 

 

 

4.

Dust is clinging to bottom of needle

4.

Remove dust by cleaning with a brush.

 

 

plate.

 

 

 

 

 

 

 

 

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 threads

 

 

 

 

correctly.

 

 

 

 

 

 

2.

Correct needle is not used.

2.

Install proper needle.

 

 

 

 

 

 

3.

Combination of fabric, thread and

3.

Check “FABRIC/THREAD/NEEDLE

 

 

needle is not correct.

 

COMBINATIONS” chart on page 19.

 

 

 

 

 

 

4.

Thread tension is set to AUTO.

4.

Refer to “THREAD TENSION” on page

 

 

 

 

34.

 

 

 

 

5. Inability to thread needle

1. Needle is not correctly inserted.

1.

Insert needle correctly.

 

 

 

 

 

 

2.

Needle threader lever cannot be

2.

Turn balance wheel to raise needle to

 

 

lowered.

 

its highest position.

 

 

 

 

6. Inability to adjust thread tension

1. Upper threading is not correct.

1.

Re-thread upper thread.

 

 

 

 

 

 

2.

Bobbin is not threaded correctly.

2.

Re-thread bobbin thread.

 

 

 

 

 

 

3.

Combination of fabric, thread and

3.

Check “FABRIC/THREAD/NEEDLE

 

 

needle is not correct.

 

COMBINATIONS” chart on page 19.

 

 

 

 

 

 

4.

Thread tension is set to AUTO.

4.

Refer to “THREAD TENSION” on page

 

 

 

 

34.

 

 

 

 

 

CONTENTS

 

 

 

SETTING UP

 

 

 

SEWING

 

 

 

STITCHES

UTILITY

 

 

STITCH DESIGNS)

(CREATE YOUR OWN

STITCHTM

MY CUSTOM

EMBROIDERING

 

 

 

MAINTENANCE

 

 

 

MESSAGES

ERROR

 

 

SEWING CHART

 

 

 

IN MACHINE)

(PROGRAMMED

PATTERNS

 

130

Page 133
Image 133
Brother PC 6500 operation manual Thread and stitch problems, Symptom Probable cause Remedy Upper thread breaks