First, we need to determine if the issue is happening with ALL needles or just one or a couple. If it's only happening with a few needles, it's possible that the issue could be related to the Thread Path or Tension.
Please make sure that one of the Thread Break Sensors Wheels is spinning while the machine is functioning.
If the sensor is Spinning and the Thread Path looks correct, we'll need to check the sensor on the back of the head.
To do this, set the machine to Needle 14 and remove the cover.
Do not touch the wheels or sensor, as they can be easily damaged. Make sure that the sensor and wheel are correctly aligned in the center of the Black Flag (refer to the pictures below).
If the sensor and wheel are correctly placed, try cleaning them with Compressed Air to remove any dust or debris that may have accumulated.
If the machine is still stopping, we'll need to adjust the sensor settings for further testing:
Go to "EMB Param".
Select "EMB Param2".
Search for "Thread Broken Sensitivity".
Once you find it, if it is set to "No Check", then change it to "5" and test the machine.
If it continues to stop, try setting it to "7" or "9". If it continues to stop, and all other areas are correct, then it's possible the sensor may be faulty and might need to be replaced. Please let us know if this is the case.
Need additional help?
Please don’t hesitate to reach out to us for further assistance via email at service@ricoma.com or by visiting our support page at www.ricoma.com/US/support.