ASME B30.1:2009 pdf download

ASME B30.1:2009 pdf download.Jacks, Industrial Rollers, Air Casters, and Hydraulic Gantries
Volume B30.1 includes provisions that apply to the construction, operation, inspection, testing, and mainte- nance of mechanical ratchet jacks, hand- or power-operated mechanical screw jacks, hand- or power-operated hydraulic jacks, air-lifting bags, indus- trial rollers, air casters, and telescopic hydraulic gantry systems. Not included in this Volume are jacks designed for automotive service, trip-lowered jacks, jacks designed for static supportrather than lifting, and jacks, industrial rollers, air-lifting bags or air casters that are an integral part of other equipment.
air bladder (air caster): a monofilm or fabric-reinforced material enclosure that directs air flow beneath the air caster’s module structure. aircaster: a devicethatcanprovide liftandtravelofaload using air flow as the support medium, often referred to as air skates or air bearings. air caster, gap crossing: a fabricated module that contains a load support plate, a landing pad, and a perforated air bladder that provides the ability to travel across gaps and steps in the operating surface. air caster, high lift: a fabricated module that contains a load supportplate, alandingpad,andanair bladderthat provides approximately twice the effective lift height of alow-liftaircasterandinflates withoutrequiringcontact with the operating surface for inflation. air caster, low lift: a fabricated module that contains a load support plate, a landing pad, and an air bladder that provides approximately half the effective lift height of a high-lift air caster and requires contact with the operating surface for inflation. air castersystem: consists ofair supply, air hoses, pressure control console, and air casters. air-lifting bag: a reinforced, flat, rubberized single-chamber inflatable bag designed to contain air at pressures above 100 psi. air-lifting bag system: consists of air supply, air hoses, pressure control unit, and air-lifting bag. appointed: assigned specific responsibilities by the employer or the employer’s representative. authorized service center: an independent service facility designated by the manufacturer to repair and test equip- ment of their manufacture. designated person: a person selected or assigned by the employerorthe employer’s representative asbeingcom- petent to perform specific duties. drift: horizontal displacement of the top of a telescopic lift boom that results from clearances between boom sections. industrial roller: a structural frame containing interlinked rollers or wheels designed to support and transport a load, often referred to as skates or dollies. jack: a portable hand or a power-operated mechanism with a base and a load point designed for controlled linear movement. jack, double-acting hydraulic: a jack that is extended and retracted under hydraulic pressure. jack, hydraulic: a jack using liquid to move the load. jack, mechanical: a jack using any means other than fluid to move the load. jack, self-contained: a hydraulic jack whose hydraulic res- ervoirand pump are contained withinthejack’s housing. jack, single-acting hydraulic: a jack that is extended under hydraulic pressure and retracted by release of the hydraulic pressure.
landing pads: structural spacer(s) mounted below an air caster module structure, which provides support while the air bladder is deflated. lateral: the horizontal direction perpendicular to the length of the gantry system track. load: the total superimposed weight or force to be over- come by the load-handling equipment. load point: the point of load application. load point, auxiliary: any point of load application other than the load point. load point, integral auxiliary: any nonremovable point of load application other than the load point. longitudinal: the horizontal direction parallel to the length of the gantry system track. module structure (air caster): the load support platform that interfaces between the load and the air bladder. overload: any load greater than the rated load. overtravel: movement beyond maximum travel (mechan- ical jack) or stroke (hydraulic jack) for which the jack was designed. ply separation: a delamination of at least two layers of rubber and/or reinforcement material. qualified person: a person who, by possession of a recog- nized degree in an applicable field or certificate of pro- fessional standing, or who, by extensive knowledge, training, and experience, has successfully demonstrated the ability to solve or resolve problems relating to the subject matter and work.