Thread Bunching At Beginning; Upper Thread Breaking - Husqvarna VIKING Onyx 15 User Manual

Thread Bunching at Beginning

Possible cause: Top and bobbin threads have not been properly placed underneath presser foot before starting to sew.
Solution: Ensure that both the top thread and the bobbin thread are under the presser foot and toward the back before starting to sew.
Possible cause: Sewing was started with no fabric under the presser foot.
Place fabric under foot, making sure that needle comes down into fabric; lightly hold both thread tails for first few stitches.
Solution:
Possible cause: Stabilizer may be needed for technique.
Solution: Place stabilizer underneath fabric.

Upper Thread Breaking

Possible cause:
Thread path obstructed.
Check if thread is caught on thread spool (rough spots on the spool itself) or behind spool pin or spool cap (if the thread has
Solution:
fallen behind the spool cap and therefore cannot feed freely through the machine path).
Possible cause: Machine is not threaded correctly.
Solution: Remove upper thread completely, raise presser foot lifter, rethread machine making sure thread is in take-up lever (raise take
-up lever to its highest position by turning hand wheel toward you.
Possible cause:
Upper tension too tight.
Reduce upper thread tension.
Solution:
Maintenance – 31