Chapter 6: Troubleshooting - Brother 3534DT Operation Manual

CHAPTER 6
TROUBLESHOOTING
This sewing machine is designed for trouble-free operation. However, the following chart indicates trouble
which may occur if basic adjustments are not made properly.
Trouble
1. Does not feed
2. Needles break
3. Threads break
4. Skipped stitches
5. Stitches are not uniform
6. Fabric is puckered
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Cause
Presser foot pressure too loose
1. Needles bent, or needle tip blunt Replace with new needle.
2. Needles incorrectly installed
3. Material pulled forcibly
1. Improper threading
2. Thread tangled
3. Thread tension too tight
4. Needles incorrectly installed
5. Wrong needle used
1. Needle bent, or needle tip blunt Replace with new needle.
2. Needle incorrectly installed
3. Wrong needle used
4. Improper threading
5. Presser foot pressure too loose
Thread tensions are not adjusted
properly
1. Thread tension too tight
2. Improper threading or thread
tangled
Remedy
Turn the pressure adjustment
screw clockwise to increase the
presser foot pressure.
(See page 9.)
(See page 13.)
Install needles correctly.
(See page 13.)
Do not press or pull material too
hard when sewing.
Thread correctly.
(See pages 15-18.)
Check spool pin, thread holders,
etc. and remove tangled thread.
Adjust the thread tension.
(See pages 10-12.)
Install needles correctly.
(See page 13.)
Use correct needle.
130/705H - suggested
(See page 13.)
(See page 13.)
Install needle correctly.
(See page 13.)
Use correct needle.
130/705H - suggested
(See page 13.)
Thread correctly.
(See pages 15-18.)
Turn the pressure adjustment
screw clockwise to increase the
presser foot pressure.
(See page 9.)
Adjust the thread tension.
(See pages 10-12.)
Decrease thread tension when
sewing lightweight or fi ne material.
(See pages 10-12.)
Thread correctly.
(See pages 15-18.)