tool for ankuppeln to an agricultural working period: a body, between a transport position and a arbeitsstellung verlagerbar is a first fluidzylinder (55), which is set up between the arbeitsstellung and a transport position. the arbeitsorgans rlagern power an arming device, in a sicherungsstellung,the shifting of the arbeitsorgans limited, and in a freigabestellung results, in which the shift of the arbeitsorgans not limited to, a second fluidzylinder (60), is established, the arming device drive, and a first and a second fluidleitungsstrang (65, 80), each of which are set upthe first fluidzylinder to effect this antriebsbewegungen whose druckfluid resources with a fluidleitungsstrang (65) of the first and second fluidleitungsstr u00e4ngen is established, at the same time, with an intake of druckfluid in the first and the second fluidzy fluidzylinder the effect of the druckfluid linder antriebsbewegung capital.this is a simplification of the stellens the arming device is achieved.