2/6
White part of the figure is rubber, red grid-like canvas, see the following illustration:
3/6
As in step 2, uncover the canvas at the other end, requiring the two ends to correspond, as shown below:
4/6
As in the picture, use a grinder to grind the uncovered part of the conveyor belt at both ends, with a slope.
5/6
Blow off all the dirt from the sanding, wipe on the belt adhesive, and start drying it out a bit for the required amount of time.
6/6
Glue the conveyor belt in the way shown in the following illustration,