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ASME B30.1-2004 pdf download

ASME B30.1-2004 pdf download.Jacks.
SECTION 1-0.1: SCOPE OF B30.1 Within the general scope defined in Section I of the Introduction, B30.1 applies to general purpose, portable jacks of the following categories: hand- or power-oper- ated hydraulic jacks, mechanicalratchetjacks, and hand- or power-operated mechanical screw jacks. Jacks designed for automotive service, trip-lowered jacks, and those that are an integral part of other equip- ment are not included in the scope of this Standard. Devices designed for static support rather than lifting are not included. 1-0.1.1 Illustrations Figures 1 through 7, on the pages that follow, show typical jacks covered by this Standard. They are not intended to be all inclusive. SECTION 1-0.2: DEFINITIONS appointed: assigned specific responsibilities by the em- ployer or the employer’s representative. authorized service center: an independent service facility designated by the manufacturer to repair and test jacks of their manufacture. controlled conditions: where the jack is evenly supported on a solid foundation, operating a gravity load only, protected against wind and other external forces such as shockloads orvibrations, andatanambienttemperature range of −20°F to 140°F (−29°C to 60°C). control parts: parts which the operator must manipulate in extending or retracting the jack. designated person: a person selected or assigned by the employerorthe employer’s representative as beingcom- petent to perform specific duties. extender: a device that increases the jack’s closed length. jack: a portable hand- or power-operated mechanism with a base and load point designed for controlled linear movement. jack, double-acting hydraulic: a jack that is extended and retracted under hydraulic pressure. 1 jack, hydraulic: a jack using liquid to move the load. jack, mechanical: a jack using any means other than fluid to move the load. load: the total superimposed weight or force to be over- come by the jack. 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. load rating, auxiliary: rated load ofthe jack, as determined by the manufacturer, when load is applied at the auxil- iary load point. overload: any load greater than the rated load. overtravel: movementbeyond maximum travel for which the jack was designed. power: any means other than manual of actuating a jack. 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. rated load (hydraulic jacks): maximum load, applied at a specified point, for which the jack is designed and built by a manufacturer for its specified travel. rated load, lifting (mechanical jacks): maximum load, ap- plied at a specified point, which the jack is designed to lift with the specified operating lever. rated load, sustaining (mechanical jacks): maximum load, applied at a specified point, which the jack was designed to sustain. service, normal: the use of jacks to raise or lower known axial loads at or less than 85% rated capacity, under controlled conditions.
SECTION 1-1.2: MARKING AND INSTRUCTIONS 1-1.2.1 Marking The rated load shall be legibly and durably marked in a prominent location. Mechanical jacks that have two ratings (sustaining and lifting) shall be so marked. The brand name or trademark, and hydraulic pressure or lever arm length and force, shall be legibly marked on the jack. Each hydraulic jack should be marked to indi- cate that only recommended jack hydraulic fluid shall be used. Double-acting hydraulic jacks shall be marked to indicate the need for a relief valve, as indicated in para. 1-1.1.3(b)(2). 1-1.2.2 Integral Auxiliary Rated Load Marking If integral auxiliary load-supporting points are pro- vided and have different ratings from the major load support points, the manufacturer shall mark the jack with the rated load for such operation in accordance with para. 1-1.2.1.

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