The invention relates to a seed drill (10) for spreading seed and / or fertilizer, having an impeller (38) which is fastened to a support arm (36) and can be moved between a transport state and a working state, wherein the impeller (38) in the Transport state is raised and lowered in the working state to the floor (64), a support beam (34) which is fixed to a frame (20), wherein the support arm (36) about a pivot axis (56) pivotally connected to the support beam (34 ), a metering member (18) which is adapted to dose the auszubringende seed and / or fertilizer amount depending on the rotational speed of the impeller (38), and a spring-loaded separate coupling member (46) which is adapted to a To transmit spring force to the support arm (36), wherein the spring-loaded separate coupling member (46) non-destructive and reversibly releasably connected to the support arm (36) is connectable.