R.G.V. DUETTO plus Instruction Booklet For Use And Maintenance page 36

b4 - Insert the auger (H) in the infeed duct (B)
attaching it to the motor pin.
b5 - Position the star blade (I) on the auger (H) with
its edge side facing outwards.
Positioning the star blade (I) with its sharp edge
towards the auger (H) will cause the appliance
to not function correctly.
The star blade (I) is very sharp.
It can cause injury!
b6 - Position the chosen grinding disk (L, M or N) in
the infeed duct (B) aligning the two protruding
disk ridges with their respective slots.
b7 - Tighten the ring nut (O) using your hands.
While tightening the nut (O) with the other
hand hold the infeed duct (B).
36
B
H
H
I
NO !!!
OK !
B
O