Abstract: A pneumatic supply device for an agricultural tractor includes a compressed air source for producing a compressed air flow, a cooler for cooling the air flow produced, and a first air dryer, which is fed with the cooled air flow and via the outlet of which a first pneumatic consumer group can be supplied with dehumidified compressed air in accordance with a first dehumidification and flow capacity, and a second air dryer, which is fed with the cooled air flow and via the outlet of which a second pneumatic consumer group can be supplied with dehumidified compressed air in accordance with a second dehumidification and flow capacity.

Abstract: A method for determining an axle load on a vehicle axle of a tractor includes providing a power lift and a payload coupled thereto, driving the power lift by a hydraulic pump, setting a pump pressure of the hydraulic pump as a function of the coupled payload, detecting the pump pressure by a sensor, and determining the axle load as a function of the detected pump pressure from characteristic data which represents a relationship between the pump pressure and the weight of the payload.

Abstract: A processing device for grey water for a rail vehicle includes a grey water container, a grey water supply in an inlet region, a drain for processed grey water in an outlet region, and a slotted filter between the inlet and outlet regions that has at least one movable sliding member which touches the base of the grey water container in a lowered position and is lifted off the base in a raised position. The base of the grey water container rises from the inlet region to the outlet region. A cleaning outflow is disposed in the inlet region on the base side. A fresh water supply for supplying fresh water is disposed in the outlet region. A rail vehicle having at least one processing device for grey water for a toilet module or toilet bowl is also provided.

Abstract: A method for determining an axle load on a vehicle axle of a tractor includes providing a power lift and a payload coupled thereto, driving the power lift by a hydraulic pump, setting a pump pressure of the hydraulic pump as a function of the coupled payload, detecting the pump pressure by a sensor, and determining the axle load as a function of the detected pump pressure from characteristic data which represents a relationship between the pump pressure and the weight of the payload.

Abstract: A processing device for grey water for a rail vehicle includes a grey water container, a grey water supply in an inlet region, a drain for processed grey water in an outlet region, and a slotted filter between the inlet and outlet regions that has at least one movable sliding member which touches the base of the grey water container in a lowered position and is lifted off the base in a raised position. The base of the grey water container rises from the inlet region to the outlet region. A cleaning outflow is disposed in the inlet region on the base side. A fresh water supply for supplying fresh water is disposed in the outlet region. A rail vehicle having at least one processing device for grey water for a WC module or toilet bowl is also provided.