New member from Kirchhayn WI

[Thestevend]

I bought a 3 point Lindig 12" drum wood chipper and need to sharpen the blades. I removed the 4 allen bolts for each blade but am confused on how to remove the wedge being as there is no threaded hole to push it out like other brands. Looking for hints on other methods to remove being there isn't any side room to drive a chisel. Thanks for any help in advance.