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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
42
Cause
Presser foot pressure too loose
1. Needles bent, or needle tip
blunt
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
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.
Replace with new needle.
Install needles correctly.
(See page 8.)
Do not press or pull material too hard when
sewing.
Thread correctly.
(See pages 17~27.)
Check spool pin, thread holders, etc. and
remove tangled thread.
See pages 30~35, "Thread tension".
Install needles correctly.
(See page 8.)
Use correct needle
Schmetz 130/705H – suggested
Replace with new needle.
Install needle correctly.
(See page 8.)
Use correct needle.
Schmetz 130/705H – suggested
Thread correctly.
(See pages 17~27.)
Turn the pressure adjustment screw
clockwise to increase the presser foot
pressure.
See pages 30~35, "Thread tension".
Decrease thread tension when sewing
lightweight or fine material.
(See pages 30~35.)
Thread correctly.
(See pages 17~27.)
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