Im in the same boat. Mine would give me trouble so the other day I took it off only to fine that someone had welded some of the linkage. They also put a block of wood in the linkage to hold it in place. I have also taken my vavles apart only to find water in the hyd oil and trash in the vavles. So ive gotten those all cleaned up and will flush the hyd oil out. I also have some orings to replace. I ordered the manual and it is of very poor quality. I think i now how the linkage goes together but I realy think Im missing a spring. As I figure out more of this puzzle I will post it and maybe help you out. :confused2: