Disassemble HP2 saddle...

Hello.
can someone tell me how to disassemble an HP2 saddle? I mean, how do you get the saddle holder from the piston housing (floating part of the saddle). Just looking at the quick ones. The tour consists of 3 sliding sleeves. I guess they have to get out that you can disassemble the saddle. From BMW and various Japanese I know that the sliding pins have to be unscrewed with a 7-inch bus. I didn't see anything on the Audi saddles. Are the parts checked?
Thank you for the answers.