RE: 9400 accu-feed foot

Make sure that you push it in well. It shouldn't pop out, but sometimes something might get caught on it and it will then. Just make sure that your quilt or fabric is coming out flat behind the foot. If it continues check with your dealer, make your foot is damaged. Also get them to show you how to put it on correctly. They aren't the easiest to learn to use the first few times you try.

Cheryl