On Wednesday, 9 August 2017 19:10:54 UTC+1, Harry Bloomfield wrote:
David pretended :
Apart from cling film over the shaft, any other suggestions?

Make sure there is no gease in the new knobs socket, grease the shaft,
then fill the socket with slow setting proper Araldite. Leave to set up
properly position and it should remain removable, due to the grease.

Yes, put glue on your knob. But certainly don't fill the hole, that'll be far too much and it might never move again. I'd put polythene sheet over the shaft first


NT