Hello!
I have purchased a brand new Pfaff 335. I am so close to having the tension perfect, but after several test runs, I come up with the same problem.
See the photos attached: I have circled the areas in question. I have tested different thicknesses of leather etc. and I still wind up with a single loose loop on the backside of the stitch every so often. How do I fix this?
Additional Info: Needle: 134-35 #19, Amman Thread T70 (I am ordering #16 and #18 needles to test)
Thanks!