Abstract: A mounting arrangement for a tensioning device with a tensioning unit in a side carrier of a crawler of a tracked undercarriage in a large machine is disclosed. The tensioning unit is arranged in a side carrier compartment in the side carrier of the crawler, wherein a mounting opening is arranged in the side carrier on the outside thereof in an installation area of the tensioning unit for allowing removal of the tensioning unit, when installed, from the side carrier compartment through the mounting opening transversely to a track running direction.

Abstract: The invention relates to a crawler track for tracked vehicles, wherein the chain links are provided with articulated eyes facing one another, in which chain bolts connecting the chain links to one another are arranged. At the respective outer contour of the areas of the articulated eyes facing one another, a contour adaptation takes places on at least a partial circumference of the articulated eye, which on at least a partial area has a curvature, which is zero or positive (convex) in the viewing direction from the adjoining articulated eye end face to the center of the articulated eye.

Abstract: An emergency descent system includes at least one ladder which is articulated on at least one supporting unit on a bearing device. The ladder is designed to be unfolded about this bearing device out of a rest position in which the ladder is disposed parallel to the at least one supporting unit and into a working position, wherein a push-out unit and a pivot unit operatively connected thereto by means of a catch are associated with the ladder. The pivot unit drives the push-out unit by the kinetic energy generated during the unfolding, wherein the push-out unit moves away from the at least one supporting unit at a first acute angle, and in the operating position, the push-out unit forms an acute angle with the at least one supporting unit and the pivot unit is held at an obtuse angle relative to the push-out unit on a stop associated with the at least one supporting unit.

Abstract: A mounting arrangement for a tensioning device with a tensioning unit in a side carrier of a crawler of a tracked undercarriage in a large machine is disclosed. The tensioning unit is arranged in a side carrier compartment in the side carrier of the crawler, wherein a mounting opening is arranged in the side carrier on the outside thereof in an installation area of the tensioning unit for allowing removal of the tensioning unit, when installed, from the side carrier compartment through the mounting opening transversely to a track running direction.

Abstract: An emergency descent system includes at least one descent means formed as a ladder which is articulated on at least one supporting unit on bearing means provided for this purpose, and the descent means is designed to be unfolded about this bearing means out of a rest position in which the descent means is disposed parallel to the support means and into a working position, wherein a push-out unit and a pivot unit operatively connected thereto by means of a catch are associated with the descent means and the pivot unit drives the push-out unit by the kinetic energy generated during the unfolding, wherein the push-out unit moves away from the supporting unit at a first acute angle, wherein in the operating position the push-out unit forms an acute angle with the supporting unit and the pivot unit is held at an obtuse angle relative to the push-out unit on a stop associated with the supporting unit.