Changing shanks on a Wirtgen w2000 milling machine

[@Seethday]

Have you tried a really stout air hammer with a flat or smoothing bit on the bolt head?

[@heavyequipmentandmore9994]

Yeah I made a special bit for it a lot of the areas are really tight to get to

[@deanl2427]

Any idea what year this machine is? Or is that an aftermarket drum? I've been around a lot of Wirtgen milling machines and never seen a drum like that.