bert boesten Report post Posted January 23, 2013 I own an Adler 4-2 and a Singer 45K25 which both pose the same problem. I use Serafil #10 yarn and after sewing a little distance the yarn is twisting open and gets stuck in the needle hole. I find it gets twisted between the tension discs. In the Singer manual it states I should use left handed yarn. So is there anyone who experienced the same problem and how can I solve it. Where can I for instance order the right yarn and will that solve the problem? Quote Share this post Link to post Share on other sites
bert boesten Report post Posted January 28, 2013 Well, I'm making some progress, but also have some more questions. Reading some other topics on this forum I saw that the thread should go around the lower tensioner twice. That made sense to me because the lower tensioner consists of a wheel sandwiched between two felt discs. The thread just slides over this wheel and the tensioner is not working at all. Going around a second time with the thread may improve the grip on the lower tensioner and I may slacken the top tensioner. Which may solve the problem of the unwinding thread. So far the theory In practice I had to go around the lower tensioner wheel twice more ( that makes 2 and 3/4 turn) to stop the thread from sliding over the wheel. But as soon as I increase the tension, it starts sliding again. And to get a proper stitch, I still need a lot of tension on the top tensioner. So I figure the bottom tensioner is not doing its job, but all my 45K's are like this (last week I bought a third one, a 45K58). A different type of thread (or yarn?) probably will solve the problem, but still I would like to see the bottom tensioner doing what it is supposed to do. Quote Share this post Link to post Share on other sites
Anne Bonnys Locker Report post Posted January 29, 2013 Serafil is a lovely thread but it does twist! Send a PM to Trox as he uses this too in his machines. Quote Share this post Link to post Share on other sites
Trox Report post Posted January 29, 2013 Hi, I use serafil on all my machines (Adler class 5, cl. 204, cl. 105, 441 clone and 29K together with triple feed DA and Pfaff upholstery class machines too) You must have the thread guide on top of spool in center of spool, thread the thread several times true the thread pin guide (top machine head) and true a lube pot if you have this. All of this take the "twink" out of the thread, this is the same with all threads. I have other threads too, in my experience Serafil preform very well. I guess compared to bonded nylon, polyester has to be taken extra care so it do not twist. It is softer and has more fiber volume than bonded Nylon. However, my big Adler's do not like bonded nylon much. However they love Serafil. Look at the threading tips of the Cowboy 4500 by Bob Kowar, thread it like that and you will not have any problems ( if still problems add some turns on the thread pin). As long as your threads is not old, or old and black in color; then use Fibings liquid glycerin saddle soap on the thread spools. Good luck Thanks Tor (aka Trox) Quote Share this post Link to post Share on other sites
bert boesten Report post Posted January 31, 2013 Thanks Tor. I think I'm on top of this problem now. I sized up the needle one step (to 25) as well. The thread I'm using is black and thinking of it, it may be old as well. When I get round to it I must buy some other colour. But for the moment I'm quite happy now. Quote Share this post Link to post Share on other sites
Trox Report post Posted January 31, 2013 Hallo Bert, Wiz has posted about problems with black thread, it usually is recolored leftovers from other colors. I always pack my thread cones in plastic to keep it from drying out. Fibings liquid saddle soap will help to restore some moister in to it again. Nevertheless, thread is fresh ware. new needles and fresh threads takes care of most stitching errors. You might find the pinned topic about http://leatherworker.net/forum/index.php?showtopic=13283 needle sizing useful too. By the way, I lived some years in Antwerp not to far from Bert (if thats where you live). I loved Belgium, the only thing I did not like was the winter weather. I prefer dry cold snow before rain and fog, and I missed the Norwegian nature too. It is almost twenty years since I have been there, I got to go to visit you soon. Good luck to you. Tot ziens, Goedenavond. Tor Quote Share this post Link to post Share on other sites