TimR wrote, on Thu, 19 Feb 2015 11:08:42 -0800:

Big C-clamp, maybe?
You'd want to run a stiff rod in the center to keep it from jumping out.

I have a LOT of C clamps.
Normally, if you had the room, it might work, but, there is absolutely
no way *any* c-shaped spring compressor is gonna work in this application.

I think I have it though.

The trick is really simple, but it *has* to be done well:
1. You MUST hold down the spring somehow (otherwise it will sproing every time).
2. You MUST leverage on a teeny tiny spot at the END of the spring (only one end)!
3. You MUST then spin the dial, again with leverage on a single point, to
unlock the brake without the benefit of the huge brake lever on the saw.

Anyway, I think I have it now. I hope to report back success once I finish
responding to the posts (just in case a better idea pops up).

Thanks for the help and advice.