finally got round to taking the sliding table off, the adjusting set screws are the cheap nasty rolled on thread type with concave ends, so whoever has put a number of circular indentations into the load spreading pads underneath the table, so when you try to adjust it, goes all over the place. remedy.face off the end off the set screws slightly domed, free up threads and oil, turn load pads over and assemble, you can then do most of the adjustment turning the screws with your fingers