ASME B30.5-2021 pdf free.Mobile and Locomotive Cranes.
SECTION 5-0.1: SCOPE OF B30.5 Within the general scope defined in Section I of the B30 Standard Introduction, 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 combustion engines or electric motors. Side boom tractors and cranes designed for railway and auto- mobile wreck clearance, digger derricks, cranes manufac- tured specifically for, or when used for, energized electrical line service, knuckle boom, trolley boom cranes, and cranes having a maximum rated capacity of 1 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 apply to machines when used in other than lifting service.
5-0.2.2 General accessory: a secondary part or assembly of parts that con- tributes to the overall function and usefulness of the equipment. anti-two-block device: a device that, when activated, disengages all equipment functions whose movement can cause two-blocking. auxilary hoist: a secondary mechanism used either in conjunction with, or independently of, the main hoist. axis of rotation: the vertical axis around which the crane superstructure rotates. axle: the shaft or spindle with which or about which a wheel rotates. It refers to a type of axle assembly including housings, gearing, differential, bearings, and mounting appurtenances. backward stability: the ability of a crane to resist over- turning in the direction opposite the boom while in a loaded or unloaded condition. ballast: weight used to supplement the weight of the machine in providing stability for lifting loads (the term ballast is normally associated with locomotive cranes).
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 point: the outer extremity of the crane jib, containing the hoist sheave assembly. jobsite: area within the boundaries of the project where the equipment is to be operated. load hoist: a hoist drum and rope reeving system used for lifing and lowering loads. load ratings: ratings in pounds (kilograms) established by the manufacturer. lower load block: the assembly of hook or shackle, swivel, sheaves, pins, and frame suspended by the hoisting rope.ASME B30.5 pdf download.