FORFARANDE OCH ANORDNING FOR LEGESJUSTERING AV MARKFORLAGD KONSTRUKTION

摘要

The wedging operation enables an intermediary layer to be inserted or removed from the space between the top (2) of the well lower part and the well cover (3). A power unit is provided (5) for transmission of the requisite power to the wedge tool (6) so that it engages against the diametrically opposed wall of the well cover. A frame projects from the power unit for its operation and guiding.