An arrangement for cleaning an end effector (21) carried by a robotic manipulation device (9a, 9b, 9c) includes an end effector cleaning station (18) mounted within a working area of the robotic manipulation device (9a, 9b, 9c), with a spray device (26) configured to provide at least one liquid jet. A control unit (11) is, when it is time to clean the end effector (21), configured to activate the robotic manipulation device (9a, 9b, 9c) such that it moves the end effector (21) downwards from a position above the end effector cleaning station (18) to a position where it is hit by the liquid jet, wherein during this movement the end effector (21) is substantially vertical.
