ASME B30.25 pdf free download

ASME B30.25-2003 pdf free download.SCRAP AND MATERIAL HANDLERS.
Volume B30.25 includes provisions that apply to the construction, installation, operation, inspection, and maintenance of scrap handlers consisting of a base, a revolving upper structure with operator ‘s station(s) and a front for lifting scrap or materials using attachments such as magnets and grapples, and any variations thereof in which the equipment retains the same funda- mental characteristics. The provisions included in this volume apply to scrap handlers that are crawler mounted, rail mounted, wheel mounted, or on pedestal bases. The scope includes only handlers used to lift, lower, and swing scrap and material at various radi, which are powered by internal combustion engines or electric motors, and which are operated hydraulically. Hydraulic excavators designed for digging and trenching, forestry machines, machines designed for demolition, lattice and telescopic boom cranes, rail- mounted cranes for railway and automobile wreck clear- ance, and equipment covered by other volumes of this Standard are excluded. SECTION 25-0.2: DEFINITIONS 25-0.2.1 Types of Scrap and Material Handlers A scrap and material handler is herein after referred to as a “handler.” Handlers may be mounted on one of the following bases: crawler handler: mounted on a base, equipped with crawler tracks for travel (see Fig. 1). pedestal- mounted handler: mounted on a pedestal base (see Fig. 2). rail-mounted handler: mounted on a base, equipped for travel on a railroad track (see Fig. 3). wheel- mounted handler (multiple control stations): mounted on a base, equipped with axles and rubber-tired wheels for travel, a power source(s), and having separate control stations for driving and operating (see Fig. 4). wheel- mounted handler (single control station): mounted on a base, equipped with axles and rubber-tired wheels for travel, a power source, and having a single control sta- tion for driving and operating (see Fig. 5). 25-0.2.2 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. ancillry equipment: equipment not required for the basic operation of the handler. appointed: assigned specific responsibilities by the employer or the employer’s representative. arm cylinder(s): the hydraulic cylinder(s) that moves the arm in relation to the boom. arm (stick): the second section of a front, one end of which is attached to the boom. asemble/modifier: entity that assembles and/ or modifies basic components to produce a handler. attachment: an accessory like a magnet or grapple that is affixed to the second or third member of a front. authorized: appointed by a duly constituted administra- tive or regulatory authority. axis of rotation: the vertical axis around which the handler upper-structure rotates. axle: the shaft or spindle with which or about which a wheel rotates. On whee-mounted handlers 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. backwvard stability: the handler’s ability to resist overturn- ing in the direction opposite the front while in the unloaded condition.ASME B30.25 pdf download.