Chosen Solution
Sorry, don’t know this Type from Krups. It seems that there are different versions of 203, depending of production date and country. I did not know, that they also had a factory in Hong Kong. Anyway, they are similar ," mas o menos". Perhaps this Krups F203 Coffee Grinder Motor Replacement helps. I think the blades are just pressed in. Good Luck! Update (09.07.2022) Did you see this videos:
and
On this device the blades are screwed in.
