depends on the style of RIM.. if you have daytons.. its possible for a man to lift and replace a mounted tire and rim .. of course you have to have the magic to get the wedges on so the wheel isnt wobbly...
with Buds / hub pilot, i wouldnt want to move it without a dolly...
caging the brakes is generally a safe operation as long as you dont crossthread.. thats where the bolt can let go as the threads get destroyed... or if the threads are in bad shape already from age and disintegrate under spring pressure...
its a good idea to make sure the caging bolts are with your bus and are easy to get to in case you need them..
sure, in the event of a simple tow dur to drivetrain failure, a tow-rig can just air up the brake system, however if a diaphram busts, the only way you will move that bus easily is to cage that spring!
-Christopher
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