Members venator Posted April 10, 2015 Members Report Posted April 10, 2015 So I have a Durkopp Adler 467. Got it and it worked great. Somehow I appear to have screwed it up beyond belief and I don't know how. Basically I'm using a 207 thread (nylon, I swapped from a poly because it kept breaking strands and bunching) and when I sew it seems okay right up until I reverse then the thread breaks. On test pieces of vegetan it doesn't seem to happen but I've sewn through the same holes about 30 times on my prodject and snap snap f'ing snap. Sometimes right away, sometimes reversing, sometimes part way thoguh but always freaking snapping. I've even loosened the tension off to the point I get a nest of thread underneath and it still snaps. Help. I'm at the end of my rope and know nothing about sewing machines. Things I can say: 1) It's got a new needle, it's straight and the right way in for sure. 2) It's threaded the way it was when it arrived from NIck-o-sew 3) I've played with the top tension repeatedly but that's all. I'm going to snap soon. I desperately need help here please. STU Quote
Moderator Wizcrafts Posted April 10, 2015 Moderator Report Posted April 10, 2015 Check the travel on the check spring. Too little travel allows the thread to form a semi loop near the point of the needle, on top of the work, leading to thread separation. Too much travel dissolves the loop before the hook picks it up, causing skipped stitches. The check spring should keep your top thread under tension until the needle penetrates the material. then, it should release the tension and allow slack so the loop can form underneath. IHTH. Quote Posted IMHO, by Wiz My current crop of sewing machines: Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.
Members venator Posted April 11, 2015 Author Members Report Posted April 11, 2015 Check the travel on the check spring. Too little travel allows the thread to form a semi loop near the point of the needle, on top of the work, leading to thread separation. Too much travel dissolves the loop before the hook picks it up, causing skipped stitches. The check spring should keep your top thread under tension until the needle penetrates the material. then, it should release the tension and allow slack so the loop can form underneath. IHTH. Check the travel on the check spring. Too little travel allows the thread to form a semi loop near the point of the needle, on top of the work, leading to thread separation. Too much travel dissolves the loop before the hook picks it up, causing skipped stitches. The check spring should keep your top thread under tension until the needle penetrates the material. then, it should release the tension and allow slack so the loop can form underneath. IHTH. Thank you. I have absolutely no idea what this means unfortunately as I know nothing about sewing machines. I am quite mechanically inclined and handy but no specific knowledge here. . . Can you simplify? Quote
Moderator Wizcrafts Posted April 11, 2015 Moderator Report Posted April 11, 2015 Thank you. I have absolutely no idea what this means unfortunately as I know nothing about sewing machines. I am quite mechanically inclined and handy but no specific knowledge here. . . Can you simplify? I Googled for close up images of your machine and found this one, which clearly shows the lower left knob has an external "check" spring on its shaft. Your thread must pass through this spring on the way to the take up lever. That spring follows the thread with the upward and downward motion of the take up. As the needle descends, so does the take up lever. The check spring should be adjusted to maintain tension on the thread as the take-up moves down. The travel of the spring can be adjusted by moving some kind of limiting tab on the mechanism where the spring is mounted. Please consult your user manual for better instructions. Quote Posted IMHO, by Wiz My current crop of sewing machines: Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.
Members venator Posted April 11, 2015 Author Members Report Posted April 11, 2015 I have this device! And when I reD the manual it doesn't seem to mention it... Quote
Moderator Wizcrafts Posted April 11, 2015 Moderator Report Posted April 11, 2015 That little spring is very important. Did you run the thread through it until you heard it snap in? pulling up on the thread should lift the top of the spring, if threaded correctly. If this spring was not threaded, it explains your ripped thread problem. Quote Posted IMHO, by Wiz My current crop of sewing machines: Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.
Members Wishful Posted April 11, 2015 Members Report Posted April 11, 2015 If all else fails, take it to a shop that can 'fix' it or show you how it works. Quote
Members venator Posted April 11, 2015 Author Members Report Posted April 11, 2015 That little spring is very important. Did you run the thread through it until you heard it snap in? pulling up on the thread should lift the top of the spring, if threaded correctly. If this spring was not threaded, it explains your ripped thread problem. That little spring is very important. Did you run the thread through it until you heard it snap in? pulling up on the thread should lift the top of the spring, if threaded correctly. If this spring was not threaded, it explains your ripped thread problem. Snap in? It's through that spring but still snapping. Unfortunately I can't take it in anywhere as that would require a truck which I don't have. Quote
Members venator Posted April 11, 2015 Author Members Report Posted April 11, 2015 Even with the tension so loose it pulls the top thread through to the bottom the thread breaks when it reverses Quote
Members venator Posted April 11, 2015 Author Members Report Posted April 11, 2015 Not sure if the laxity in the thread should be happening or not. . . Video.MOV Quote
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