Brother SuperGalaxie 3000 3000C 3000D 3100D - Manual (Page 300)

Troubleshooting 9-5
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CONTENTS
Index
1 Machine is not threaded correctly (used
the wrong spool cap, spool cap is loose,
the thread did not catch the needle bar
threader, etc.)
2 Thread is knotted or tangled.
3 Thread is too thick for the needle.
4 Upper thread tension is too strong.
5 Thread is twisted.
6 Needle is turned, bent or the point is dull.
7 Needle is installed incorrectly.
8 There are scratches near the hole of the
needle plate.
9 There are scratches near the hole in the
presser foot.
0 There are scratches on the race.
1 Bobbin is set incorrectly.
2 There are scratches on the bobbin or it
doesn’t rotate properly.
3 Thread is twisted.
1 Machine is threaded incorrectly.
2 Using improper needle or thread for the
selected fabric.
3 Needle is turned, bent or the point is dull.
4 Needle is installed incorrectly.
5 Needle is defective.
6 Dust or lint is collected under the nee-
dle plate.
Upper
thread
breaks
Rethread the machine correctly.
Re-thread upper and lower thread.
Check needle and thread combi-
nations.
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 con-
sult your authorized dealer.
Replace the presser foot, or con-
sult your authorized dealer.
Replace the race, or consult your
authorized dealer.
Reset the bobbin thread correctly.
Replace the bobbin.
Use scissors, etc. to cut the twisted
thread and remove it from the race,
etc.
Check the steps for threading the
machine and rethread it correctly.
Check the “Fabric/Thread/Needle
Combination” chart.
Replace the needle.
Reinstall the needle correctly.
Replace the needle.
Remove the dust or lint with the
brush.
Bobbin
thread
breaks
Skipped
stitches
Problem Cause Page Solution
1-32
1-31, 1-32
1-45
2-13, 5-40
7-2
1-43
1-43
8-2
1-39
8-2
1-31
1-31
7-2
1-32
1-45
1-43
1-43
1-43
8-2
MAKING MINOR MACHINE ADJUSTMENTS
If you have a minor problem with your sewing machine, check the following solutions. If the
solutions suggested do not correct the problem, contact your authorized dealer.