UPPER THREAD
LOWER THREAD
BREAKS
Upper thread is
Lower thread is
not correctly
installed.
M
No
Page 26
Page 25
M
Upper thread is
threaded properly
tangled.
M
No
Page 26
Page 25
M
Upper thread
tension is too
tight.
M
No
Page 31
M
Spool of thread is
not correctly
installed.
M
No
Page 22
M
Needle is bent or
not sharp.
M
No
Page 9
M
The combination
of needle size/
thread size/fabric
is incorrect.
M
No
Page 34
M
CONTACT YOUR LOCAL SERVICE CENTER
PERFORMANCE CHECK LIST
SKIPPED
STITCHES
BREAKS
Needle is incor-
tangled.
rectly inserted.
M
M
No
Page 9
M
Bobbin is not
Inferior needle is
in the shuttle
hook.
M
M
No
Page 9
The combination
of needle size/
thread size/fabric
is incorrect.
M
Page 34
Lint is clinging to
the bottom of the
needle plate.
M
Page 65
Threading is not
M
Page 26
M
LOOP IN SEAM
Thread tension is
incorrect.
M
No
Page 31
M
used.
No
M
No
M
No
M
correct.
No
M
FABRIC
PUCKERS
Thread tension is
too tight.
M
No
No
Page 31
M
Threading is not
correct.
M
No
Page 26
M
Wrong needle is
used.
M
No
Page 9
M
The combination
of needle size/
thread size/fabric
is incorrect.
M
No
Page 34
M
M
76