Pfaff 1245 Tension

[truenorth]

im having a heck of a time with this machine,on 2 layers of chap the underside shows the knot played with the tension till i wound it right in!!!is the tension spring worn?it seems to like it there but it looks weird for it to be wound in all the way, do you guys think this is normal?i didnt want to touch the bobim seems fine do i have to play with tension with different types and thickness of leather?

[CowboyBob]

Try to loosen the bobbin tension 1/2 a turn @ a time .

[Wizcrafts]

It's possible that somebody before you ordered or replaced the original beehive spring with a lighter duty spring. This is typical for machines that are used in tailor shops and garment factories, where the dominant thread is soft cotton, not hard bonded nylon.

If your top tension beehive spring is too light, you can buy a heavier duty replacement from most industrial sewing machine dealers, like Toledo Industrial Sewing Machines.

Otherwise, loosen the bobbin tension spring, checking for thread particles inside the case, or under the spring. You can also move up one needle size to punch a bigger hole. This makes it much easier to pull up the knots.

[truenorth]

You guys are great thanks for the help, it does seem to be the weak spring will have to get one, thanks again this forum is awsome!!!