eunimia saw problems

[louis]

i have an eunemia m50l/600 (radial) arm saw.
when i cut two pieces of wood or mdf, lay them on a flat surface and butt them toghether, there is a very small gap between the pieces on the surface.
when i turn the pieces upside down the same happens.
it looks as is the cuts are convex.
what can be the reason for this?
blade: cmt z=64 220x30x3.2

 

[OLD]

I do not now the specific answer to this but i would check the table for flatness and square and that the upstand is close fitting (i screw mine) to the table i have had misalignments/wear in this area .Then its the usual checks for square blade to table and clean up the 'bearings' where they run along the box section tube.