Thanks for your attention. Photos attached. All the blades swing from side to side, but they all foul on the plate because it is not flat, and so will not swing 360′. I wonder if I am overthinking this, and just a bit of deflection is all that is needed.
I checked the gearbox this morning, and it is good for oil.
I went to tension the drive belt, and realised I need to weld up one side of the tensioner as at the moment one side is not welded/broken, and therefore the tensioner is twisting the frame. This looks to have been a long time problem that was ignored in the past.
