top priory: always keep the compressing air connected and air on with a pressure minimum 0.6 BAR
1st step. remove the fixing bolt
2nd step: press the tension button, move the top roller down so you can remove the old belt and change a new one.
put the new belt inside the correction sensor rod, change belt must keep the belt arrow direction same to roller turning directions.
3rd step, tighten all bolts and pull the tension button to rise the top roller to provide belt tension again.
it’s done
video of how to:
belt directions: