TE 21 trafficator switch.

Trafficator wswitch on my TE21 does not self cancel. I do not want to remove the fascia to release the housing and it seems that if i undo the steering wheel adjuster I can slide out the wheel to release it . Trouble is I can't undo the adjuster nut with 10" stilsons or a strap wrench and I am worried that larger stilsons will damage or break the nut which looks like bakelite . Any ideas out there?
Terry Johnson

Terry,
I realise your post was 3 years ago but did you manage to release the “nut” on the steering column shaft, also do you turn the nut clockwise or anti-clockwise to release it? If anyone else who is reading my post has any advice it will be very much appreciated. The object is to move the steering wheel closer to the dashboard.
Brian