Hi all,
finally my floating head works fine. But I spent three days for this, until I realise what switchoffset really is.
I mentioned this is the travel between moments when switch is on and off, usually 0,5 - 1 mm.
But it isn't.
It includes complete travel of floating head holding plate, from the moment when torch touches material, to the moment when switch is activated. In my case - 16 mm.
I suppose I didn't precisely understood the explanations and texts I got. (I newer learned English in the school),
Thanks to everybody who helped me
mrpeja