ASME B30.5-2007 pdf download.Mobile and Locomotive Cranes.
SECTION 5-0.1: SCOPE OF B30.5 Within the general scope defined in Section I, American National Standard B30.5 applies to crawler cranes, locomotive cranes, wheel-mounted cranes, and any variations thereof that retain the same fundamental characteristics. The scope includes only cranes of the above types that are basically powered by internal com- bustion engines or electric motors. Side boom tractors and cranes designed for railway and automobile wreck clearance, digger derricks, cranes manufactured specifi- cally for, or when used for, energized electrical line ser- vice, knuckle boom, trolley boom cranes, and cranes having a maximum rated capacity of one ton or less are excluded. Special adaptions to the general types of machines covered by this volume, where applicable, fall under this scope. Some basic machine types within this scope are used alternatively for lifting service and for applications not considered to be lifting service. All of the requirements of this Volume are applicable to such machines when used for lifting service. However, at a minimum, Section 5-1.11, Chapter 5-2, and Section 5-3.1 of this Volume apply to machines when used in other than lifting service. SECTION 5-0.2: DEFINITIONS 5-0.2.1 Types of Mobile and Locomotive Cranes commercial truck-mounted crane: a crane consisting of a rotating superstructure (center post or turntable), boom, operating machinery, and one or more operator’s sta- tions mountedona frame attached to acommercial truck chassis, usually retaining a payload hauling capability whose power source usually powers the crane. Its func- tion is to lift, lower, and swing loads at various radii (see Figs. 1 and 2). crawler crane: a crane consisting of a rotating superstruc- ture with a power plant, operating machinery, and boom, mounted on a base and equipped with crawler treads for travel. Its function is to lift, lower, and swing loads at various radii (see Figs. 3 and 4).
locomotive crane: a crane consisting of a rotating super- structure with a power plant, operating machinery, and boom, mounted on a base or car equipped for travel on a railroad track. It may be self-propelled or propelled by an outside source. Its function is to lift, lower, and swing loads at various radii (see Fig. 5). wheel-mounted crane (multiple control stations): a crane consisting of a rotating superstructure, operating machinery, and operator’s station and boom, mounted on a crane carrier equipped with axles and rubber-tired wheels for travel, a power source(s), and having separate stations for driving and operating. Its function is to lift, lower,and swingloads atvarious radii(see Figs. 6 and7).
5-0.2.2 General accessory: a secondary part or assembly of parts that contributes to the overall function and usefulness of a machine. administrative or regulatory authority: a governmental agency or the employer in the absence of governmental jurisdiction. angle indicator (boom): an accessory that measures the angle of the boom to the horizontal. anti–two-block device: a device that, when activated, dis- engages all crane functions whose movement can cause two-blocking. appointed: assigned specific responsibilities by the employer or the employer’s representative. authorized: appointed by a duly constituted administra- tive or regulatory authority. auxiliary hoist: a secondary hoist rope system used either in conjunction with, or independently of, the main hoist system. axis ofrotation: the vertical axis around which the crane superstructure rotates. axle: the shaft or spindle with which or about which a wheel rotates. On wheel-mounted cranes it refers to a type of axle assembly including housings, gearing, differential, bearings, and mounting appurtenances. axle (bogie): two or more axles mounted in tandem in a frame so as to divide the load between the axles and permit vertical oscillation of the wheels.
cross-over points: in multiple layer spooling of rope on a drum, those points of rope contact where the rope crosses the preceding rope layer. designated person: a person selected or assigned by the employerorthe employer’s representative asbeingcom- petent to perform specific duties. drum: the cylindrical member around which a rope is wound for lifting and lowering the load or boom. dynamic (loading): loads introduced into the machine or its components due to accelerating or decelerating forces. ensure: term used when the meaning “take steps to see that” or “make sure” is intended. flange point: a point of contact between rope and drum flange where the rope changes layers. gantry (A-frame): a structural frame, extending above the superstructure, to which the boom support ropes are reeved. hoist mechanism: a hoist drum and rope reeving system used for lifting and lowering loads. jib: an extension attached to the boom point to provide added boom length for lifting specified loads. The jib may be in line with the boom or offset to various angles in the vertical plane of the boom. jib backstop: a device thatwillrestrainthe jib fromturning over backward.