On Dec 20, 9:20*am, Walter Weir wrote:
*It's off the panel so that's not the problem. There's no doubt that
it's bent. The end of the knob does an orbit when it's rotated.
Before I try anything I'm going to talk to Cambridge - but I thought
maybe I could get some good advice here. A little oil sounds like a
good idea for starters.

Walter

The fact that the end of the knob does an orbit is not proof in itself
that the shaft is bent. Before you resort to anything more drastic,
remove the knob and confirm the shaft is really bent.

Removal of the knob requires teasing off the trim cap (finger nail or
knife blade) and then loosening the collet screw.

When you put the knob back on make sure there is clearance between it
and the panel when it is fully pressed in.


Andy