On Tue, 14 May 2013 01:44:38 +0100 in sci.electronics.repair, "Arfa
Daily" wrote,
pliers catch the flat leaf spring that couples the speed select knob to the
belt shifting lever. It only holds in there because it's bent and under
tension. And of course, it detaches and flies ...

I have combed every square inch of the floor under light strong enough to
burn your eyes out, but nope, it's gone ...

Sweep with big magnet. Include floor not under the light.