PR1050X
FAQs & Troubleshooting |
The thread tension is incorrect.
There could be several reasons why the tension is incorrect.
Check the following points or issues.
For details, see "How do I thread the machine? (Threading the upper thread)" .
For details, see "How do I install the bobbin wound with thread? " .
For details, see "How do I adjust the tension of the bobbin thread ? " .
For details, see "Maintenance (Cleaning the thread paths of the upper threads) " .