This morning in the Altenessen district without a mowing vehicle on the bridge Zweigert the Emscher dam . Because of the relatively softened by flooding the soil and steep terrain threatened the tractor is equipped with a special arm to sink into the Emscher . The driver tried to arm grip on the ground in order to stabilize its position . Shortly before the water surface of the tractor by experts of the fire could be secured with three steel cables . The mowing vehicle was successfully recovered after a few hours .