Search the Community

I could use some help sorting the timing/setup on my Adler 267-373GK. I picked it up used but it has little noticeable wear, The hook and basket are snug with virtually no play. The needle bar is tight and the bed only shows some scissor rash, no feed path paint wear. I've been working on getting it timed correctly. The manual states the hook should be centered on needle at 1.8mm - 2.0mm (depending on subclass) rise after BDC. This doesn't come close to matching Constabulary's 1.6mm above the needle eye (hook too high). I get random skipped stitches with book settings but no drops with Constabulary's timing. The needle does barely deflect as the hook shield passes but is within specs for needle/hook spacing. Unfortunately, all I have are 180/24 needles but the forums indicate this needle will work in this machine and I don't want to move the hook assy until things are resolved. Okay finally, here is what I think the problem is. I get serious loop resistance about 4 o'clock on the bobbin case (needle is 12 o'clock) after the hook catches the thread. After carefully watching and comparing a couple machines it appears the thread take up arm is rising too soon after hitting it's lowest point. This pulls the thread tight before passing the apex(?) of the bobbin case arc i.e. 4 o'clock instead of 6 or 7 o'clock, The loop flows easily and smoothly around the bobbin case on all my other machines. What determines take up arm timing? Needle bar height? Am I on the right track here or out in the weeds? thanks