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MY STITCHING IS LOOPING OR BUNCHING UNDERNEATH THE MATERIAL, WHAT AM I DOING WRONG?
Most of the time when your machine bunches underneath like this it is a problem with the top thread, common faults are
- Top thread not threaded correctly (check you have threaded machine as the manual shows)
- Machine threaded with presser foot down (blocks thread passing through tension discs) always ensure presser foot is raised before threading up.
- more serious causes can be if the tension unit has developed a fault.
Rethreading the top thread will usually solve this problem unless there is a more severe problem if that does not work for you then you may need to have your machine inspected by a Pfaff service engineer.
https://www.performancesewing.com/faq/question/ajax/faq_id/109/
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