Yes mate, take the drums off, and you can see the pistons that push the shoe's into the drum? (see the pic)
there is a little ring there that will click over (spinning it towards you)
just rotate that and keep offering the drum up untill it's a tight fit.
then attatch drum and your away.
Is there no guide for this? as i could do a more detailed one if needs be...
Oh and no by big anal clean i did not mean i went for a colonic irrigation. Lol