Apparatus and a method for cleaning milking stalls on a rotary platform of a rotary parlour

A method for cleaning milking stalls (3) on a platform of a rotary parlour, comprising the steps of:

• having a hose member (18) with an end portion (18a) with an outlet opening (18c, 18c1, 18c2), wherein during a cleaning process liquid jets are sprayed out through the outlet opening (18c, 18c1, 18c2);
• having a liquid regulating element (18d, 18d1, 18d2) that regulates liquid supply to the end portion (18a) of the hose member (18);
• having a holding device (19) hold the end portion (18a) of the hose member (18) in a predetermined parking position (p0);
• having a robotic manipulation device (9a, 9b, 9c) that operates to perform i) a primary task in the milking stalls (3), and ii) an additional task in which the robotic manipulation device (9a, 9b, 9c) grips the end portion (18a) being held in the parking position (p0) and then moves the end portion (18a) from the parking position (p0) to a number of different cleaning positions (pn);
• and
• with a control unit (11, 11a) operatively connected to the robotic manipulation device (9a, 9b, 9c), i) at a time to clean one of the milking stalls (3), activating the robotic manipulation device (9a, 9b, 9c) such that instead of the robotic manipulation device (9a, 9b, 9c) performing the primary task, the robotic manipulation device (9a, 9b, 9c) performs the additional task in which the robotic manipulation device (9a, 9b, 9c) grips the end portion (18a) of the hose member (18) being held in the holding device (19) and then moves the end portion (18a) from the parking position (p0) to the number of different cleaning positions (pn) from which liquid jets are sprayed from the outlet opening (18c, 18c1, 18c2) of the end portion (18a) against predetermined surfaces to be cleaned in the one milking stall (3).