Table of Contents
Advertisement
TROUBLESHOOTING
Problem
Upper thread breaks. Machine is not threaded correctly (used the
wrong spool cap, spool cap is loose, the
thread did not catch the needle bar threader,
etc.).
Knotted or tangled thread is being used.
The selected needle is not appropriate for the
thread being used.
Upper thread tension is too tight.
Thread is twisted.
Needle is turned, bent or the point is dull.
Needle is installed incorrectly.
There are scratches around the opening of the
needle plate.
* There is a notch on the left side of the
There are scratches around the opening in the
presser foot.
There are scratches on the bobbin case.
Using improper needle or thread for the
selected fabric.
While sewing, the thread became knotted or
tangled.
A bobbin designed specifically for this
machine is not used.
The thread is tangled
Upper threading is incorrect.
on the wrong side of
the fabric.
Using improper needle or thread for the
selected fabric.
The upper thread is
The bobbin thread is incorrectly installed.
too tight.
Bobbin thread
Bobbin is set incorrectly.
breaks.
Bobbin thread is incorrectly wound.
There are scratches on the bobbin or it doesn't
rotate properly.
Thread is twisted.
A bobbin designed specifically for this
machine is not used.
Fabric puckers.
There is a mistake in the upper or bobbin
threading.
Spool cap is set incorrectly.
Using improper needle or thread for the
selected fabric.
Needle is turned, bent or the point is dull.
Stitches are too long when sewing thin fabrics. Shorten the stitch length.
Thread tension is set incorrectly.
Wrong presser foot.
188
Cause
opening in the needle plate. This is not a
scratch.
a Notch
a
Solution
Rethread the machine correctly.
Remove any knots or tangles.
Select a needle that is appropriate for the type
of thread being used.
Adjust the thread tension.
Use scissors, etc., to cut the twisted thread
and remove it from the race, etc.
Replace the needle.
Reinstall the needle correctly.
Replace the needle plate, or consult your
authorized Brother dealer.
Replace the presser foot, or consult your
authorized Brother dealer.
Replace the bobbin case, or consult your
authorized Brother dealer.
Check the "Fabric/Thread/Needle
Combinations" chart.
Rethread upper and lower thread.
Use a bobbin designed specifically for this
machine.
Check the steps for threading the machine and
rethread the machine. Be sure that the presser
foot is in the raised position when threading
the machine so that the upper thread sets
properly in the upper tension.
Check the "Fabric/Thread/Needle
Combinations" chart.
Correctly install the bobbin thread.
Reset the bobbin thread correctly.
Use a correctly wound bobbin.
Replace the bobbin.
Use scissors, etc. to cut the twisted thread
and remove it from the race, etc.
Use a bobbin designed specifically for this
machine.
Check the steps for threading the machine and
rethread it correctly.
Check the method for attaching the spool cap,
then reattach the spool cap.
Check the "Fabric/Thread/Needle
Combinations" chart.
Replace the needle.
Adjust the thread tension.
Use the correct presser foot.
Page
47
—
56
74
—
54
54
178
57
178
56
44, 47
40
47
56
44
44
40
44
—
40
44, 47
47
56
54
73
74
198
Advertisement
Table of Contents
