not sure, but theres youtube vids, its pretty simple, only yhr spring compressor fighting sucks. it likes to pop off the spring.

and a strong magnet helps too to pull the locks out, once the spring is compressed a bit, push to one side to open the lock up and the magnet will pill it out and keep it safe.

in this vid he ises a lever style compressor, it really looks much easier to use but i was told the blower would be in the way, and in the vid the lim is off as well as the blower.