Hmmm, I jack it up by calling the Automobile Association.
When we arrived at a campsite this summer my dear wife noticed a nail sticking out of one of my tires, and it was getting low. So I called AMA (AAA for my American friends).
I pay for the extra RV coverage, might as well use it eh?
BTW they came to the campsite (about a hour from nearest AMA service centre) but did not bring a socket that would take off my trailer tires (seems they do not use regular lugs). It was dark by then so he left it jacked up and said he could come back in two hours and fix it that night if we wanted to. We said tomorrow would be fine. We were not going anywhere. Next morning, bright and early he was back with the proper tool.
One thing I did learn beside the odd socket thing; the trailer tires off my Rockwood will not go onto the spare tire carrier on the back, good thing there was space in my truck to haul the regular tire into the tireshop for repair.
And, I have since added that socket to my on board tool box, just in case.