Them kabota generators are to tall to fit under a bus.
Please for the love of god, do not hang a 500 pound generator from a cable under your bus. Build a proper support / mounting system.
A generator of that type is like the engine in your bus. There is no reason to have to drop it. Oil changes, filter changes, ect can all be done with the unit still mounted in it's place.
Should something fail, lowering it should be the same as lowering the engine in your bus. Support with a jack, remove rubber mounts, cross member, then lower it.
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."
Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization