I just went through some confusing times with one of my rings. Your
problem sounds very familiar (especially the part about tearing off
the coax). What i found was that the pot gear was not engaging with
its mate sufficiently and at some point in the rotation, though
turing, the the control box didn't know it because the pot wasn't
being drivin. Obviously, this is not good for the coax. The fix (or
the typical K0RF fix I should say0 is easy. Simply open the motor
box and force a shim under the plate that holds the pot. This
increases the engagement and solves the problem.
73, Chuck
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