If the cart doesn't have a stylus guard you can fashion one out of some stiff paper. Cut a strip of paper, sort of stiff paper, about 1" long and 1/2" wide. Lightly tape one end to one side of the cart and then bending the paper over the stylus so as to not actually touch the cantilever/stylus tape the other side in place.
This will work like a football helmet face shield and protect the cantilever from catching on something and being pulled.
This will work like a football helmet face shield and protect the cantilever from catching on something and being pulled.