Champion 4000 Owner's Manual page 9

Assembly Instructions
3. Slide the back of auger onto the motor shaft and rotate until
the flat in the auger and the flat on the motor shaft are
aligned. Continue to slide the auger onto the motor shaft until
the auger stops against the end of the motor shaft.
a. Use the GREENS auger (green) for juicing of wheatgrass,
most leafy greens and for shredding.
b. Use the GRINDING auger (black) for juicing of vegetables,
such as carrots and beets, for juicing of non‐fibrous greens, for
juicing of most fruits and for homogenizing.
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