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My machine is not detecting thread breaks, what do I do?

There are 2 types of thread break detectors used on Barudan machines.
Older Barudan machines use the Check Spring.
Newer Barudan machines use a Rotary Thread Break Wheel for each needle.
And some Barudan machines use a combination of both.
If you're unsure of what type of thread break detection your machine has, please contact technical service.

Check Spring troubleshooting:
If the check spring is sitting against its post, then the machine assumes the thread is broken. If the machine consistently is not recognizing thread breaks on a particular needle, look at the check spring area. Be sure the spring can move freely. Clean the spring and the post to be sure it can make good electrical contact. You can also try loosening the check spring slightly. If the problem persists, or is occurring on more than one needle, you may have a different problem and need to contact technical service.

Rotary Wheel trouble shooting:
The top thread has to wrap around this wheel, and when the machine sews, it spins the wheel. The machine monitors whether this wheel is spinning while sewing. If the wheel is not spinning, it assumes the thread has broken. If you're getting false breaks, make sure the thread is wrapped around the wheel. If the thread gets too much slack in it, it can simply jump off the wheel and just needs re-wrapped. Thread tension can also be an issue. The tensioner above and below the wheel have to be balanced. You cannot have all the tension on the top tensioner and none on the bottom tensioner or vice versa. Re-adjust the tension if it's out of balance. If you have intermittent problems, you may try wrapping the thread twice around the wheel to increase friction to spin the wheel. If the problem persists, or is occurring on more than one needle, you may have a different problem and need to contact technical service.

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