The invention relates to a trashrack installation for liquid borne trash, the installation having trash collecting rack rods and a rack cleaner mechanism for cleaning the rack rods and which includes a toothed comb mounted on a tilting mechanism and pivotable between a cleaning position and a free position. The tilting mechanism is mounted pivotably on a carrier which can be moved by means of a conveyor mechanism along a guiding device, tilting of the tilting mechanism relative to the carrier being actuated by movement of the conveyor mechanism and the guiding device being arranged remote from the rack rods through which the liquid flows. The carrier includes a brake mechanism, the braking force of which is sufficient to prevent movement of the carrier under gravity, but which is insufficient to prevent the conveyor mechanism moving the carrier either in a direction for cleaning or in a return direction.