[Elecraft] K3 AF Knob - No End Stops/Detents

[Scott]

It's taken me 8 years to finally "break" something.  Well it's not 
really broken it just doesn't indicate right.

The smallest AF knob (the one furthest "out" from the front panel) does 
not stop at the min and max detent stops.  It still adjusts the volume 
up and down ok but it does not indicate properly.  Additionally it will 
go "all the way around" to adjust the volume.  The interior sub receiver 
AF knob (the biggest and closest to the radio front panel) works fb.

Is there any way to fix the smallest AF knob without changing the pot or 
is that the only fix.  Thanks in advance.

Scott
AD5HS