Thanks guys, Crabby you can adjust the arm the instructions are in the manual, my saw is 14 months old and I have had a number of problems such as the main bearing collapsing and after replacement it vibrates like a cheap saw, it is to go back to the dealers for that so hopefully they can sort that out, I have also striped the thread on the blade holder, that was replaced and now the tension lever, I took it apart today and sanded all the surfaces flat and that seems to have helped
Jimbo