The wheeled excavator A 900 C Litronic is the "smallest" of the Liebher hydraulic excavators in the standard range. The power unit is a 4-cylinder Liebherr construction machinery engine, producing maximum output at only 1800 min-1. The hydraulic pump, a Liebherr variable displacement pump with swashplate design is controlled via the Liebherr-Synchron-Comfort-System (LSC). Mode switching ensures synchronisation of the engine and hydraulics output to the respective application conditions. The Liebherr quick-change-system, comprised of the Liebherr hydraulic quick coupler and automatic hydraulic coupling system LIKUFIX allows the tool to be changed in no time.