Terex T200/T25 or Matbro TR200/250 Transmission oil leak


I have a Terex T200 with an oil leaking from the transmission output shafts oil seals. I can remove the drive shafts but it is not clear how to remove the flanges from the output shafts of the transmission. They appear to be press fitted over the shaft but I dont have a manual to check if there is some other mechanism holding the shafts in place.

Does anyone know how to remove these flanges / shafts so that the oil seals can be replaced