Originally Posted by
J Miller
Nancy, there is a spring finger on the part that holds the bobbin case in. It's the black part on the right of the case held on by the two screws. It had been moved to the right creating a big gap between the springy finger and bobbin case. I moved it back to match the one on my 401A and now it sews properly.
Joe
Thank you Joe, and thanks for the quiz! I had set my 503a on the computer table so I could compare my machine to your photo! I could not tell by looking at your photo what the problem was! Luckily I have a 503a, 2-401a's, and a 500a - but, none of them have ever had a problem with the horizontal rotary hook/bobbin assembly area! Now, if I get a horizontal rotary hook machine I will know what to look for if I do get one with issues!
Nancy