Thanks prd, this is my third Greenie and it did not look right but I sort of figures the way it was setup it was what they had copied. I have worked out how it can be done with the parallelogram to make it work but there is no indication that there was ever any mounting/pivot points fitted. I have started moving in this direction and have made up the triangles and pivot points. I will get some pics of the deck repair which has been reasonably well done, so whoever did it had a fair idea of what they are doing