Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
It needs to come out to be greased. If not kept greased they do wear out and very hard to find a good one
I did not disassembly mine, but I've read that a lot of heat (propane) helps. There are also some videos on YT too I was told.I tired, but gave up as it was not absolutely necessary