Stehl Tow Dolly Scrapes
Ours did the same thing until I added a drop hitch between the motorhome and the dolly to lower the ball.
Stehl recommends the base of the ball to be between 15” - 19” above the ground.
You don't want the dolly ramps dragging if you can help it.
Denny, Connie & Shadow (former barn cat made good)
2006 Tiffin Phaeton, Cat C7, Freightliner Chassis