These instructions come directly from the service manual. Notice the mention of a qualified technician. If you do this on your own be careful. If you don't follow the instructions correctly or you break something you've will have no one to blame but yourself.
-Clean the coffee beans container periodically; this operation should be accomplished by a qualified technician! Unplug the machine. Empty the coffee container and unloose the two fastening screws. Now, the container can be removed and cleaned.
-Carefully pull the adjustment lever upwards, previously writing the set grinding degree.
-Turn the adjustment ring counterclockwise, until the blue marks coincide.
-Now, it is possible to remove the grinding ring from the machine, slightly pulling it upwards.
-With the aid of a brush or a narrow vacuum hose, clean both the gear box and the grind ring support. Make sure the position of the grind ring does not shift. To reassemble the coffee grinder, carry out the reverse sequence, making sure the adjustment ring has not been shifted during cleaning. If that is the case, turn it until the blue mark coincide with one of the three notches. Assemble the grind ring support and make sure the blue marks coincide.
-Turn the adjustment ring clockwise, to make the red marks coincide.
-Fit the adjustment lever on the ring, until it coincides with the previously set grinding degree.
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