Glad it has worked out Allan. It sounds as if the clutch pull rod adjusts at the front, not the back as I had guessed.
I'm having trouble sorting out the mechanism in my mind, from some of the pictures - the pull rod attachment to the idler pulley pivoted link, and its attachment and adjustment at the clutch pedal end. I also think two of your final adjustments look as if there is an assembly problem. The huge amount of slack in the blade engage adjustment does not look right, and its nuts seem to be free to rotate, changing the adjustment all the time due to vibration. Another adjustment seems to be screwed all the way to the end of its thread.
