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It is mandatory to follow these instructions in order to prevent situations that could endanger the operator’s and other people’s safety, and to ensure the correct functioning of the shredder. If you have questions, call “FERRI” after-sales service or a specialized “FERRI” dealer. 1.2 Identifying the Machine Each shredder has an identification plate attached; the data necessary to identify the model and the serial number to order spare parts or after-sales service are both stamped on the plate (