Brother 888-F42, Operation Manual

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Troubleshooting
Appendix A-17
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A
■ After sewing
The stitch is not
sewn correctly.
The presser foot that is used is not appropriate
for the type of stitch that you wish to sew. Attach the presser foot that is appropriate for
the type of stitch that you wish to sew.
B-31
The thread tension is incorrect. Adjust the tension of the upper thread. B-40, A-6
The thread is tangled, for example, in the
bobbin case. Remove the tangle thread. If the thread is
tangled in the bobbin case, clean the race.
A-7
Feed dogs are set in the down position.
Slide the feed dog position switch to the right
.
B-2
Symptom Probable Cause Remedy Reference
Thread tension is
incorrect.
Upper threading is incorrect.
Check the steps for threading the machine and
rethread the machine.
B-20
Bobbin is set incorrectly.
Reset the bobbin. (If needle plate was removed,
reinstall needle plate and tighten screws prior to
installing bobbin case. Check to make sure
needle enter through the center of needle plate
opening.)
B-17, A-2
Using improper needle or thread for the
selected fabric. Check the “Fabric/Thread/Needle
Combinations” chart.
B-27
Presser foot holder is not attached correctly. Reattach the presser foot holder correctly. B-31
Thread tension is set incorrectly. Adjust the thread tension. B-40, A-6
Bobbin thread is incorrectly wound. Use a correctly wound bobbin. B-14
Needle is turned, bent or the point is dull. Replace the needle. B-28
A bobbin designed specifically for this machine
is not used.
Incorrect bobbins will not work properly. Only
use a bobbin designed specifically for this
machine.
B-14
Pattern does not
turn out.
Wrong presser foot was used. Attach the correct presser foot. B-31
Did not use a stabilizer material on thin fabrics
or stretch fabrics.
Attach a stabilizer material. S-4
Thread tension is set incorrectly. Adjust the thread tension. B-40, A-6
Fabric was pulled, pushed or fed at an angle
while it was being sewn. Sew while guiding the fabric with your hands so
that the fabric is fed in a straight line.
B-34
The thread is tangled, for example, in the
bobbin case. Remove the tangle thread. If the thread is
tangled in the bobbin case, clean the race.
A-7
Symptom Probable Cause Remedy Reference