According to Mark Main :

[ ... ]

The motor shaft is on the right side as I'm looking at it and on the
left of the motor is this attachment that is about 40% of the motor
width and almost the same diameter. This appears to be where the white
wires (that I marked C2 and C3) go.

That sure sounds like an electrically operated brake, power to
release the brake is typical.

I checked for continuity between C2 and C3 and the buzzing sound that I
get when making a typically connection was faint (about 25% of the
standard buzzing noise), but it did make a buzz. I'll try to get a
picture of it uploaded and I'll hook just these two up to 240V to see
if I hear a clank noise.

O.K.

Good Luck,
DoN.

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