M343D
FAQs & Troubleshooting |
Threads break
- Improper threading.
Thread correctly.
- Thread tangled.
Check spool pin, thread holders, etc. and remove tangled thread.
- Thread tension too tight.
Adjust the thread tension.
- Needles incorrectly installed.
Install needles correctly.
- Wrong needle used.
Use correct needle Schmetz 130/705H - suggested.
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