Abstract: The invention relates to a grouping of cylinders in a drying section of a paper machine, in which drying section a paper web and a wire are carried meandering from a first heated drying cylinder onto a leading cylinder and from the leading cylinder further onto the next heated drying cylinder. A drying group consists of a number of subsequent groupings of cylinders, whereby, in each grouping of cylinders, the drying cylinders and the leading cylinders are placed, in relation to one another, substantially at three different height levels, so that the drying cylinders with larger diameter are placed at a height level Y.sub.1 and the drying cylinders that have a diameter smaller than said larger diameter are placed at a height level Y.sub.2. In the groupings of cylinder the leading cylinders are placed at a third height level Y.sub.3.

Abstract: Method and apparatus in a cantilevered frame part of a press section and/or wire section of a paper machine in which a cantilevered beam extending between the side frames of the machine is pre-tensioned by applying a force on the cantilevered or projecting part of the beam. The pre-tensioning is produced by a power device, preferably a hydraulic power unit, which produces a downwardly directed pre-tensioning force on the projecting part of the cantilevered beam. The pre-tensioning is applied prior to the replacement of press fabrics or an equivalent operation, and is released after the fabric replacement has been carried out and the side frame at the service side of the machine has been closed or is closeable.