Most times the tires are way overinflated from the dealer. So you will want to check pressures anyway...If the tires are filled you will know as soon as you take your air chuck off the stem (or you can hear the air gurgling through the fluid). Even if the valves are at the top they still hold a little liquid in them. I fill my filled tires with the valve stem at the top, idkw. Oh, I remember, because the valves sometimes stick a little with calcium in them. When they stick and the stem is at the bottom the fluid gushes out. When the valves are at the top and you hit them with pretty high pressure the fluid is blown out of the stem into the tire immediately and the valves don't stick open. Calcium is used in Canada's colder regions because anything else will freeze. Calcium is also heavy. The rusted rim problems are way overstated (as long as your inner tubes are good).
Keep a good eye (wrench) on the loader pin-keeper bolts. Also check all of the loader- frame bolts. Check your drawbar pin-keeper (dealer probably installed the drawbar).
Check the wheel lugs!
Basically check all the bolts, especially the ones the dealer has touched.
Not to be too hard on dealers, but the factory torques to spec. The dealer, not so much...