I am changing the wheels on an Accucraft arch bar tender truck this week, and discovered (a) that the truck was entirely bolted together and (b) that it had to be almost entirely un-bolted to get the wheels out. I thought you might like to see the pieces.
Covers on the axle boxes are hinged, although most are glued by the paint. The square things are spring quads - 4 springs with a bolt through the top and bottom to hold it together. [I was clamping the truck bolster pieces together to avoid losing the springs when one fell out and I realised they were already held together.] 4 springs each side ?
As Murphy would have it, the dismantling was because the brake gear is soldered to the bolster (not bolted) and you can’t get the wheels out without taking off the side frame, which means . . .