B30.3 applies to "construction tower cranes" and "permanently fastened tower cranes" which are powered by means of electrical automobiles or inner combustion engines and that vary their working radius by way of a luffing increase mechanism, a trolley traversing a horizontal jib, or a mix of the 2.
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Additional resources for ASME B30-3-CONSTRUCTION OF TOWER CRANES
When external evidence of possible damage is found, it may be necessary to remove the sheave from its mounting for further examination. 10; (10) travel mechanisms for malfunction, excessive wear or damage; (II) hydraulic and pneumatic pumps, motors, valves, hoses, fittings, and tubing for excessive wear or damage. ( b ) For cranes used in service involving periodic reerection, advantage can be taken of the ease of performing detailed inspection when the crane is disassembled. During visual inspection of members and their connections [see para.
Summary of Changes . ... 111 v vii | | |||| || | | | || || ||| || --- Introduction General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope .................... Section I Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section II Interpretations . . . . . . Section III New and Existing Installations ................................... Section IV Mandatory and Advisory Rules . . . . . . . 0 .
4. 1(0]; (c) stop load block upward motion before twoblocking occurs or warn of an impending two-block condition; (d) limit crane travel at both ends of the runway tracks; (e) limit lifted load; (fl limit operating radius in accordance with lifted load; and (g) limit pressures in hydraulic or pneumatic circuits (see para. 9). 5 Any new poured socket or swaged socket assembly used as a boom pendant shall be proof tested to the crane or fitting manufacturer’s recommendation but in no case greater than 50% of the component wire rope’s or structural strand’s nominal strength.