Members CPeter Posted September 23, 2013 Members Report Posted September 23, 2013 The joint on the top of the rod shown in the image below is loose and the arm does not lift the tension spring properly which I think affects the stitch. Does anyone have an idea on how to repair the loose joint. It is peened over like a rivet. Peter Quote
Moderator Wizcrafts Posted September 23, 2013 Moderator Report Posted September 23, 2013 Maybe it can be bronze brazed to stay put. Quote
Members pcox Posted September 23, 2013 Members Report Posted September 23, 2013 silver solder work great Quote
Members CPeter Posted September 23, 2013 Author Members Report Posted September 23, 2013 There is an alignment issue with brazing it. That would be too easy. I did find a "fix" used by Ken Jerrems in Australia and this is a link to that information: http://alasdair.muckart.net/files/KenJerrems29k13/EngineeringDrawings/SINGERTENSIONLIFTRODMODS2.pdf I am going to try that. I do have a metal lathe and milling machine, so this is feasible. The alignment issue is that there is a "fin" on the bar the slides in a groove in the head and the arm must be perfectly positioned to correctly work the tension release. The threaded stud method allows the arm to be rotated to get the correct alignment. I think I will have to machine off a bit of the rod and put a flat washer on both sides of the arm to overcome the wear on the end of the arm. Thank you for the suggestions. BTW, I did replace the check lever spring and that did help with the birdnesting, but I think the tension lifter will also help in creating the correct stitch. Peter Quote
Moderator Wizcrafts Posted September 23, 2013 Moderator Report Posted September 23, 2013 If it can't be repaired, it can be replaced. Quote
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