HOEYTRYKKSDUSJ FOR EN SIKTEENHET

摘要

A shower system (12) for a screening machine (10) or unit and method of using the shower system (12) to clean the screen surface (24). The shower system includes a spray nozzle (28) connected to a movement arm (32), a driver (38) for longitudinally moving the movement arm (32) in a reciprocal path, and an indexing system (36) adapted to allow limited axial rotation of the movement arm (32) at predetermined longitudinal positions of the movement arm (32).