Performance Check List - Brother PS-3100 Manuel D'instructions

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 check list may help you to improve the operation.
If you still have difficulties, contact your nearest authorized service center.
With the model PS-2470/PS-3100, you can use the sewing speed controller to adjust the sewing speed. When sewing at the slowest speed,
skipped stitches may easily occur depending on the type of thread and fabric used. If this occurs, sew at a faster speed.
UPPER THREAD
BREAKS
Upper thread is not
correctly installed.
Page 39 No
Upper thread is
tangled.
Page 39 No
Upper thread
tension is too tight.
Page 46 No
Spool of thread is
not correctly
installed.
Page 39 No
Needle is bent or
not sharp.
No
Page 11
The combination of
needle size/thread
size/fabric is
incorrect.
Page 47 No
CONTACT YOUR LOCAL SERVICE CENTER
89

PERFORMANCE CHECK LIST

LOWER THREAD SKIPPED
BREAKS STITCHES
Lower thread is Needle is incorrectly
tangled. inserted.
Page 37 No Page 11
Bobbin is not
Inferior needle is
threaded properly in
the race.
Page 11
Page 37 No
The combination of
needle size/thread
size/fabric is
incorrect.
Page 47
Lint is clinging to the
bottom of the needle
Page 87
Threading is not
correct.
Page 39
LOOP IN SEAM
Thread tension is
incorrect.
No Page 46
used.
No
No
plate.
No
No
FABRIC
PUCKERS
Thread tension is
too tight.
No Page 46 No
Threading is not
correct.
Page 39 No
Wrong needle is
used.
Page 11 No
The combination of
needle size/thread
size/fabric is
incorrect.
Page 47 No