| 摘要 |
The invention relates to a construction apparatus for foundation construction comprising a chassis, a mast for guidance of at least one ground working apparatus and a support mechanism for the mast, by means of which the mast is arranged in an adjustable manner on the chassis, whereby the support mechanism has at least one support arm, which is pivotably hinged about a pivot axis on the chassis. In accordance with the invention a rotary encoder is provided for detecting the pivot angle of the support arm relative to the chassis as a degree of an adjustment position of the mast.
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