Troubleshooting; Thread Loops On Underside Of Fabric; Bobbin Thread Breaking; Bobbin Thread Showing On Top Of Fabric - Husqvarna VIKING Onyx 15 User Manual

TROUBLESHOOTING

In this troubleshooting guide you will find solutions to the problems you may have with your machine. For further information
please contact your local authorized HUSQVARNA® VIKING® retailer who will be happy to help you.

Thread Loops on Underside of Fabric

Possible cause: Thread looping on the underside of the fabric is always an indication that the upper thread is not co-
rrectly threaded. This happens when the upper thread is not correctly placed in the thread tension mecha-
nism and has not been threaded through the take up lever.
Solution: Rethread the machine, making sure to first raise the presser foot lifter before starting to thread, so thread can be properly seated
in the tension mechanism and take up lever. To know if you have rethreaded the machine correctly, try this test:
• Raise the presser foot lifter and thread the top of the machine.
• Thread the needle, but don't put the thread under the presser foot yet. As you pull the upper thread to
the left, it should pull freely.
• Put the presser foot lifter down. As you pull the upper thread to the left, you should feel resistance.
This means you are threaded correctly.
• Put the thread under the presser foot, and then draw up the bobbin thread. Slip both thread tails
under the presser foot towards the back. Lower the presser foot and begin sewing.
If you put the presser foot lifter down, but the thread still pulls freely (you feel no difference whether the presser foot is up or
down), this means that you have threaded incorrectly. Remove the upper thread and rethread the machine.

Bobbin Thread Breaking

Possible cause:
Bobbin is threaded incorrectly.
Check that bobbin is placed correctly in the bobbin holder.
Solution:
Possible cause: Bobbin wound too full or unevenly.
Solution: Bobbin thread may not have been correctly placed into bobbin winding tension disc during the bobbin winding process.
Possible cause: Dirt or lint in bobbin holder.
Solution: Clean bobbin holder.
Possible cause: Wrong bobbins being used.
Solution: Use bobbins that are the same style as those that come with the machine – don't substitute.

Bobbin Thread Showing on Top of Fabric

Possible cause: Top thread is too tight.
Reduce upper thread tension.
Solution:
Possible cause: Thread path is obstructed, putting extra tension on top thread.
Solution: Check that the top thread path is not obstructed and thread is moving freely through the thread path.
Possible cause: Bobbin thread not in bobbin case tension.
Solution: Rethread bobbin.

Bobbin Winding Difficulties

Possible cause:
Bobbin thread loosely wound on bobbin.
Rewind bobbin, making sure that the thread is placed snuggly in the bobbin winding tension disc.
Solution:
Possible cause: Bobbin winding spindle not fully engaged, therefore bobbin not winding.
28 – Maintenance