ASME B30.4 pdf download Portal and Pedestal Cranes Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings SECTION 4-0.1: SCOPE OF B30.4 Volume B30.4 includes provisions that apply to theconstruction,installation, operation, inspection, testingand maintenance of electric motor or internalcombustion engine-powered portal and pedestal cranesthat adjust operating radius by means of a boom luffingmechanism or by means of a...