Originally Posted by pugs
Yah, they are a bit hidden. I finally found them.
As for weight it looks like these units have their own weights. Not sure if I am right or not but it appears that they kinda float. Like each set of 2 tine wheels has a weight between them and floats on a shaft so if they encounter something in the ground they will just ride up out of the ground over it.
That's correct. The weight of the mower is not used.