An arrangement having a powered sheet cover apparatus and a load space for an agricultural machine, comprising - a load space defined in a load container by walls on opposing sides and walls on opposing end sides ; - a sheet cover configured to cover a top opening of the load space; - a first support member connected to the sheet cover on a proximal side of the sheet cover and extending essentially parallel to the walls on the opposing sides , wherein the first support member is provided in at least one fixed position with regard to an adjacent wall on one of the opposing sides of the load container; - a second support member connected to the sheet cover on a distal side of the sheet cover and extending essentially parallel to the walls on the opposing sides ; - a support device provided on the walls (4a, ..., 7a) of the load container and connected to the second support member in such a way that the second support member is movable between the opposing sides for covering and uncovering the top opening by the sheet cover ; - a powered driving device connected to a roll of the first support member in such a way that rotation of the roll causes the sheet cover to roll and unroll from the roll while the second support member is moving between the opposing sides for covering and uncovering the top opening , the powered driving device being provided with a driving motor received in an inner space of the roll ; and - a biasing apparatus connected to the support device in such a way that a biasing force provided by the biasing apparatus is applied to the support device for biasing the support device against movement between the opposing sides . - a load space defined in a load container by walls on opposing sides and walls on opposing end sides ; - a sheet cover configured to cover a top opening of the load space; - a first support member connected to the sheet cover on a proximal side of the sheet cover and extending essentially parallel to the walls on the opposing sides , wherein the first support member is provided in at least one fixed position with regard to an adjacent wall on one of the opposing sides of the load container; - a second support member connected to the sheet cover on a distal side of the sheet cover and extending essentially parallel to the walls on the opposing sides ; - a support device provided on the walls (4a, ..., 7a) of the load container and connected to the second support member in such a way that the second support member is movable between the opposing sides for covering and uncovering the top opening by the sheet cover ; - a powered driving device connected to a roll of the first support member in such a way that rotation of the roll causes the sheet cover to roll and unroll from the roll while the second support member is moving between the opposing sides for covering and uncovering the top opening , the powered driving device being provided with a driving motor received in an inner space of the roll ; and - a biasing apparatus connected to the support device in such a way that a biasing force provided by the biasing apparatus is applied to the support device for biasing the support device against movement between the opposing sides . <EOS>