GilaMinumBeer said:It is there to ensure that something is engaging the free roller. Which is usually not an issue so long as there is grain in the hopper but, it does help to reduce the risk of the mill getting jambed by moving both rollers.
You will most likely be fine without it but, if you find you get a lot of jams try getting a replacement from the faucet parts sections of local big box home store.
it floats in the mash...
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