1. A direct swing leaf actuator for actuating a swing leaf of a leaf system, the direct swing leaf actuator comprising: a receiving box for receiving an actuator unit and for arrangement in or on a stationary part of the leaf system or of a building comprising the leaf system, and further comprising a driven shaft configured to be moved into operative connection with an actuator unit, wherein a swing leaf is configured to be placed on the driven shaft in a torque-transmitting manner, and wherein a device is present for adjusting a spatial position of the driven shaft relative to the receiving box, wherein the device has an adjusting frame with a height-adjusting unit, wherein the adjusting frame is arranged in the receiving box and wherein the driven shaft is received on the adjusting frame to be height-adjustable using the height-adjusting unit, and wherein the height-adjusting unit has a swing arm, rotatably received on the adjusting frame on a first end side in a pivot point and articulated on a second end side in an articulation point to be adjustable by an adjusting element in a vertical direction.