02-21-2013, 07:14 PM
By the tensioning ring do you mean the "C" clip that fits in a groove on the control's shaft? I would try removing one from a scrapped control and see if that fits, you need a sharp flat bladed screwdriver to push them off the shaft, sometimes you need to pry the ends open with a jewelers screwdriver or something first.
Regards
Arran
Regards
Arran