You would have to be extremely skilled to back up a dolly using the MH as “Dale.Traveling” suggested. But if you do you must reinsert the “locking pin” into the dolly first. Without that pin being in place you can back the dolly a very short distance and in a straight line only.
In almost 11 years and 50,000 miles of traveling I’ve never had to unload the toad anyplace other than my campsite. We pull to the site, unload the toad, park it in a nearby empty space, disconnect the dolly, push it to the back of our campsite, park the MH over the dolly tongue and then park the toad in our campsite. If I have to move the dolly any distance or uphill I have a “trailer dolly” that I can hook onto the dolly tongue to move it around. I’m lucky in that my back bay can hold the trailer dolly. At 76 it’s getting a little harder to move the dolly around but still doable.
Do you have any idea how old your KarKaddy is? Is it the SS model (folds in half for storage)? If it’s more than 10 years old it might not have the down hill tension spring that keeps the dolly brakes from being activated too much on steep down hill travel. Mine didn’t have this spring. Demco shipped me the spring with instructions and I installed it.
If you don’t have a “operation manual" for the dolly I’d suggest that you Google “Demco KarKaddy SS” for a manual.
Good Luck and Happy Camping
Dave Bates