Abstract: A powered shrimp deveining assembly includes a motor coupled to an output and a secondary shaft both housed in a removable enclosure, the output shaft and the secondary shaft extending through an adapter to turn a cutter against the rotation of a pair of guide disks. The adapter is provided with a boss in which one end of a bell crank is engaged, the other end of the bell crank extends in a threaded projection through an arcuate slot formed in a cover that is mounted on the adapter to shield the cutting mechanism. An idler roller on the bell crank is thus pivotally spaced from the guide disks to direct shrimp bodies against the cutter, the same bell crank fixing mechanism also retaining the cover in place.