Agri weld beet bucket

[The Son]

Had a secondhand one of these dropped off today, had the wrong fittings so only got it going this evening but it doesn't seem to be doing a great job.

Should the fins in the cutting die be sharp, they are very dull and bits of beet top are folding over the cutting edge and stopping it cutting, it then tends to throw the beet over the top of the bucket, and it takes an age to achieve anything.

Any tips ideas greatly received.