lazabby

I'm trying to remove the balance wheel from my machine. It is the type where it has the pull and twist knob and the notch fits into the slots. I understand that the "middle ring" has to be twisted clock-wise to unscrew it. I've applied heat and two different penetrating oils to it. The notch to tap on is in an awkward position and I can't get the ring to budge. Surely, when Singer designed this thing, that workers were not using a hammer and some kind of small bar to unscrew this thing. Did they have a special tool that could latch into the notch that allowed them to unscrew it?

OurWorkbench

????????????? maybe a spanner wrench ??????????????
https://navyaviation.tpub.com/14310/...renches-36.htm

Janey - Neat people never make the exciting discoveries I do.
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WIChix

I have found some information off site that indicates removing the hand wheel is very difficult, and not recommended, for the Singer 12. (Janey, the Singer 15-1 1883 Doubts thread from Andy Y.)recommended

I will pm the info to you.

AlZilla

Are you trying to get the piece with the V notch to unscrew? Are you sure it's a left hand thread? ("twisted clock-wise to unscrew")

I can't imagine a heat gun would be too aggressive. I suppose you could blister the paint if you tried but caution should kick in well before then.

I might be inclined to put a small pipe wrench on it, well padded with some veg tanned leather, and tap the handle with a small mallet. If I were certain which way it unscrews. It's possible I'd block it internally with a piece if wood to keep it from turning but then it gets a lot more delicate not to use too much force.