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.