the way i did it was
take the wheels off (if longchamps give them to softy)
then i took the drum off...if the drum is hard to get off,ther is two small holes with thread tapped into em,in the centre of the drum.put 2 bolts that fit in there in and tighten em evenly that will force the drum off
then once its open u will see the shoes and a rod with thread and a ratchet spindle thing in the center.
turning that makes the shoes go in and out.
so spin it around a bit so the shoes more outwards,do that a couple of times and try put the drum back on and see if it still fits. if so spin it some more to push the shoes out further
once u get it so the drum wont go back on,spin the ratchet enough so u can get the drum back on.
thats about it really
tho if ur been a poxy poser and have been tightening the brakes from the handbrake lever inside the car back that off to and take the slack up with the shoes inside the drum
hope that helps
now wheres my dinner bitch