Performance Checklist; LOOP IN SEAM; LOWER THREAD- Page 67

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57

MAINTENANCE

ENTRETIEN

MANTENIMIENT

O

MANUTEN

ÇÃ

O

Performance Checklist

Whenever sewing difficulties are encountered, review the section in this instruction manual that details the operation you are performing to make
sure you are correctly using the machine. If the problem continues, the following checklist may help you to improve the operation.
If you still have difficulties, contact your nearest service center.

The combination

of needle size/

thread size/fabric

is incorrect.

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No

Page 16

No

Page 15

No

Page 6

No

Page 21

No

Page 21

No

Page 16

No

Page 21

No

Page 16

No

Page 6

No

Page 23

No

Page 15

No

Page 22

No

Page 15

No

Page 6

No

Page 23

No

No

Pages 15–16

No

No

Page 6

No

Page 23

Pages 15–16

Page 55

FABRIC

PUCKERS

SKIPPED

STITCHES

LOOP IN SEAM

LOWER THREAD

BREAKS

UPPER THREAD

BREAKS

Lower thread is

tangled.

Needle is incor-

rectly inserted.

Thread tension is

incorrect.

Thread tension is

too tight.

Bobbin is not

threaded properly

in the shuttle

hook.

Upper thread is

tangled.

Damaged or worn

needle is used.

Threading is not

correct.

The combination

of needle size/

thread size/fabric

is incorrect.

Lower thread
tension is too

tight.

Upper thread
tension is too

tight.

Wrong needle is

used.

Spool of thread is

not correctly

installed.

Lint is clinging to
the bottom of the

needle plate.

Lower threading is

not correct.

Needle is bent or

not sharp.

Threading is not

correct.

The combination

of needle size/

thread size/fabric

is incorrect.

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CONTACT YOUR LOCAL SERVICE CENTER

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Upper threading

is not correct.