[TowerTalk] Tailtwister not turning

[al_n6ta at comcast.net]

Finally my turn again.
T2X will not rotate, all of a sudden.   Brake sounds like it releases with the loud 'clank'.  Diretcion meter will not move from its last indication, at JA.  Voltages and resistances checked per the manual and are in tolerance.   Archives suggests changing the AC capacitor.  Got one PDQ from C.A.T.S. but no improvement.  Meter not moving means no mast movement but I can see that myself!  Is there some kind of internal problem that would allow all the electrical tests to be FB but no mechanical movement?

I can get it down but that is less than fun.

Tnx!
Al