Abstract: A self-propelled forager can accumulate dust, dirt or crop material particles in its maintenance and/or engine compartment. To avoid such accumulations, suction devices are provided in the engine and/or maintenance compartment which extract dust, dirt or crop material particles. The suction is provided by the post-accelerator which conveys the chopped crop.

Abstract: In a sugar-cane harvesting machine with a mobile machine base frame and a chopping mechanism (8), harvesting attachments which can be optionally fixed on the machine base frame are provided for adapting to different harvesting circumstances and terrain conditions, of which harvesting attachments one is designed for single-row harvesting and another for multi-row harvesting. The harvesting attachments contain row dividers (5, 6, 7), a mowing mechanism (23, 24, 25, 26) and a feeding mechanism (b 19, 20, 21, 41, 42). The multi-row harvesting attachment projects beyond the chopping mechanism (8) predominantly on one side so that symmetry is produced with respect to the running gear. In the uniform feeding space behind the mowing mechanism, the stream of material is laterally constricted and, specifically, preferably on one side.