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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.
UPPER THREAD
BREAKS
Upper threading
is not correct.
M
Page 16
M
Upper thread is
tangled.
M
Page 16
M
Upper thread
tension is too
tight.
M
Page 21
M
Spool of thread is
not correctly
installed.
M
Page 16
M
Needle is bent or
not sharp.
M
Page 6
M
The combination
of needle size/
thread size/fabric
is incorrect.
M
Page 23
M
57
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Performance Checklist
LOWER THREAD
BREAKS
Lower thread is
tangled.
M
No
No
Page 15
M
Bobbin is not
threaded properly
in the shuttle
hook.
M
No
No
Page 15
M
Lower thread
tension is too
tight.
M
No
No
Page 22
M
Lower threading is
not correct.
M
No
No
Page 15
No
Pages 15–16
No
M
CONTACT YOUR LOCAL SERVICE CENTER
SKIPPED
LOOP IN SEAM
STITCHES
Needle is incor-
Thread tension is
rectly inserted.
incorrect.
M
M
No
Page 6
Page 21
M
Damaged or worn
needle is used.
M
No
Page 6
M
The combination
of needle size/
thread size/fabric
is incorrect.
M
No
Page 23
M
Lint is clinging to
the bottom of the
needle plate.
M
No
Page 55
M
Threading is not
correct.
M
No
M
FABRIC
PUCKERS
Thread tension is
too tight.
M
No
No
Page 21
M
Threading is not
correct.
M
No
Pages 15–16
M
Wrong needle is
used.
M
No
Page 6
M
The combination
of needle size/
thread size/fabric
is incorrect.
M
No
Page 23
M
M
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