The aim of the experiment was to confirm that when harvesting clover with a poorly adjusted rotor rake, a lot of dirt and dust gets into the cuttings, which can significantly deteriorate the quality of the silage. Another goal was to confirm the hypothesis that silage quality can be better when using a belt rake than a rotary rake. There were more clostridia in silages when a rotary, poorly adjusted machine was used than when a well adjusted machine or belt rake was used. In another experiment, the harvesting variant using a belt rake increased the dry matter content and ash content in the dry matter, and conversely decreased the protein and ADF content in the dry matter. The highest losses were when using a belt rake after adding 170 g of clay per 5 kg of cuttings. On the contrary, the lowest losses, although not significant, were when using a belt rake without adding clay.