2) Regarding the lengths of the pins. Nylon pins may never be in full length of belt width. You need pin play (shorter pin then belt width) of between 18 and 22 mm to make sure there’s space for the nylon to absorb humidity (when cleaning the belt in water) and to make sure the pins are not growing out of the belt, or break in the middle of the belt. So belt width 1068 minus 18-22 mm for the pins total, meaning that the belt has been mounted correct according to our instructions. Under normal load, the fact that the outer eyes are without pin does not weaken the belt in a straight running conveyor.
Please check that this is the same measure at the delivered belt.