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Construction cranes are raised by hydraulic jacks and winches. The booms of the crane are attached to the counterweight and jacking mechanism, and once the crane is assembled and leveled, the jacks and winches are used to lift the crane into position.
Construction cranes are raised by hydraulic jacks and winches. The booms of the crane are attached to the counterweight and jacking mechanism, and once the crane is assembled and leveled, the jacks and winches are used to lift the crane into position.
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