A crane may include a travelable undercarriage, a superstructure rotatably supported thereon with a luffable boom system arranged thereon and a derrick boom, with an auxiliary crane being used as derrick ballast. In The auxiliary crane may be driven onto a ballast base plate attached to the derrick boom for the alignment of the boom system in order to thus form at least a large portion of the counter-weight.
METHOD OF OPERATING A CRANE, AND CRANE
2016-11-17
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |