Apparatus for the Earth treatment

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The equipment has a working tool (12) located in a housing (2), where the working tool is driven by a motor. A height adjusting device (50) adjusts the height of the housing relative to a land area (3). The height adjusting device has a rocker arm (20) that is movable about a swivel axis (21). The rocker arm has an end (24) that carries a bottom support (7). The rocker arm swivels in a position through a positioning device, where the working tool is held in a region of another end (25) of the rocker arm.