吀栀爀攀愀搀 愀渀搀 猀琀椀琀挀栀 瀀爀漀戀氀攀洀猀; Thread and stitch problems; 1. Upper thread breaks- Page 133

130

CONTENTS

SETTING UP

SEWING

UTILITY

STITCHES

MY CUSTOM

STITCH

TM

(CREATE

YOUR

OWN

STITCH

DESIGNS)

EMBROIDERING

MAINTENANCE

ERROR

MESSAGES

SEWING CHART

PATTERNS

(PROGRAMMED

IN MACHINE)

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.

Thread and stitch problems

Symptom

1. Upper thread breaks

2. Bobbin thread breaks

3. Skipped stitches

4. Fabric puckers

5. Inability to thread needle

6. Inability to adjust thread tension

Probable cause

1. Upper threading is not correct.

2. Upper thread is tangled.

3. Spool of thread is not correctly set.

4. Correct needle is not used.

5. Shuttle is damaged.

1. Upper thread is tangled.

2. Bobbin is not threaded properly.

1. Needle is not correctly inserted.

2. Correct needle is not used.

3. The combination of fabric, thread and

needle is not correct.

4. Dust is clinging to bottom of needle

plate.

5. Upper threading is not correct.

1. Threading is not correct

2. Correct needle is not used.

3. Combination of fabric, thread and

needle is not correct.

4. Thread tension is set to AUTO.

1. Needle is not correctly inserted.

2. Needle threader lever cannot be

lowered.

1. Upper threading is not correct.

2. Bobbin is not threaded correctly.

3. Combination of fabric, thread and

needle is not correct.

4. Thread tension is set to AUTO.

Remedy

1. Re-thread upper thread.

2. Remove thread ends from race and

shuttle.

3. Set spool of thread correctly.

4. Install proper needle.

5. Contact service representative.

1. Remove thread ends from race and

inner shuttle and from around spool
pin.

2. Re-thread bobbin thread.

1. Insert needle correctly.

2. Install proper needle.

3. Check “FABRIC/THREAD/NEEDLE

COMBINATIONS” chart on page 19.

4. Remove dust by cleaning with a brush.

5. Re-thread upper thread.

1. Re-thread upper and bobbin threads

correctly.

2. Install proper needle.

3. Check “FABRIC/THREAD/NEEDLE

COMBINATIONS” chart on page 19.

4. Refer to “THREAD TENSION” on page

34.

1. Insert needle correctly.

2. Turn balance wheel to raise needle to

its highest position.

1. Re-thread upper thread.

2. Re-thread bobbin thread.

3. Check “FABRIC/THREAD/NEEDLE

COMBINATIONS” chart on page 19.

4. Refer to “THREAD TENSION” on page

34.