Abstract: The invention relates to a method for adjusting the tension of endless and spaced-apart drive elements (1) of a screening device (2), which is used for separating out and removing debris from wastewater (3), wherein the drive elements (1) are moved on a circulating path with the aid of a drive motor (4) of the screening device (2) during the operation of the screening device (2), characterized in that the energy consumption of the drive motor (4) is monitored during the operation thereof, and that the tension is increased as necessary until the energy consumption increases in a previously defined way. Moreover, a screening device (2) for separating out and removing debris from wastewater (3) is provided.

Abstract: A sieve device for insertion in a shaft has a connection for wastewater arriving in a supply device, which supply device is connected to a sieve surface of the sieve device for separating material to be separated from the wastewater. A worm conveyor transports the material to be separated out of the shaft. A fastening device is arranged in the shaft for the vertical fastening of the sieve device. The fastening device comprises a guide for the sieve device. An intersection is provided between the supply device and the sieve device. The guide positions the sieve device in front of the intersection when the sieve device is moved relative to the supply device into the shaft for purposes of mounting.

Abstract: A sieve device (1) for insertion in a shaft (2) comprises a connection for wastewater arriving in a supply device (3, 4), which supply device (3, 4) is connected to a sieve surface of the sieve device (1) for separating material to be separated from the wastewater, and comprises a worm conveyor device (25) that comprises a worm conveyor for transporting the material to be separated out of the shaft (2). A fastening device (1) is arranged in the shaft for the vertical fastening of the sieve device (1). The fastening device (10) comprises a guide (12) for the sieve device (1). An intersection is provided between the supply device (3, 4) and the sieve device (1). The guide (12) positions the sieve device (1) in front of the intersection when the sieve device (1) is moved relative to the supply device (3, 4) into the shaft (2) for purposes of mounting.