All you have to do is remove the outriggers that are normally used
for strapping down purposes, insert the castor rigs, up-end the trailer
and it just wheels along, down the narrowest of paths, remembering,
of course, to take off the saddle clamp post.
You should just be able to make out the braking mechanism on the
heavy duty castor sets that are nearest the floor. This is so you stay
in full control while standing the trailer on its hind legs.