| 摘要 |
An agricultural spreader ( 200 ) includes one or more hydraulically actuated spreading means in a hydraulic circuit including a hydraulic pump. The hydraulic pump is driven by at least one drive wheel ( 6 ) mounted on drive wheel mounting means ( 7 ) and engageable with at least one ground wheel ( 9 ) of the spreader. The hydraulic pump is adapted to supply hydraulic fluid at a substantially constant required flowrate to the one or more hydraulically actuated spreading means ( 2 ) when a rotational speed of the ground wheel ( 9 ) is greater than or equal to a minimum required rotational speed. |
