Belt and tread drum, assembly and method for manufacturing a belt and tread package

A belt and tread drum for manufacturing a belt and tread package, wherein the belt and tread package comprises a belt layer and a tread layer that is wider than the belt layer, wherein the belt and tread drum has a circumferential surface that is rotatable about a drum axis, wherein the belt and tread drum comprises a first support member, wherein the first support member comprises a tread support surface which faces away from the drum axis for at least partially supporting the tread layer where said tread layer is wider than the belt layer, wherein the first support member is positionable in a raised position outside the circumferential surface in a radial direction, wherein the belt and tread drum further comprises a first retaining element at the first support member for engaging onto the tread layer to retain the tread layer in position on the tread support surface, wherein the first support member is movable in a radial direction perpendicular to the drum axis between a retracted position at a first distance from the circumferential surface in the radial direction and the raised position at a second distance from the circumferential surface in the radial direction, wherein the second distance is greater than the first distance, wherein the belt and tread drum comprises a first drive member for driving the movement of the first support member and the first retaining element in the radial direction, wherein the first drive member is a linear drive that is movable along a stroke distance, wherein the first drive member, along a first part of the stroke distance, is arranged to drive only the first retaining element in the radial direction and wherein the first drive member, along a second part of the stroke distance, is arranged to drive both the first retaining element and the first support member in the radial direction.