ASME B30.1 pdf download.Jacks, Industrial Rollers, Air Casters,and Hydraulic Gantries.
SECTION 1-0.1: SCOPE OF B30.1
Volume B30.1 includes provisions that apply to the construction, operation, inspection, testing, and maintenance of mechanical ratchet jacks, hand- or power-operated mechanical screw jacks, hand- or power-operated hydraulic jacks, air-lifting bags, industrial rollers, air casters, telescopic hydraulic gantry systems, and strand jacks.
Not included in this Volume are jacks designed for automotive service, trip-lowered jacks, jacks designed for static support rather than load handling, and jacks, industrial rollers, air-lifting bags or air casters that are an integral part of other equipment.
20 1-0.1.1 ILLustrations
Figures 1-0.4.5-1 through 1-7.1,1-1 show typical equipment and hand signals addressed In this Volume. They are not intended to be all-inclusive.
1-0.L2 TransLations
(a) Translation ol non-English documentation into English
(1) The wording of written non-English safety information and manuals regarding use, inspection, and maintenance shall be translated into English by professional translation industry standards, which include, but are not limited to the following;
(-a) translation of the complete paragraph message, instead of word by word
(-b) grammatical accuracy
(-c) respectfulness of the source document content without omitting or expanding the text
(-d) accurate translation of the terminology
(-e) reflection of the level of sophistication of the original document
(2) The finished translation shall be verified for compliance with (1)(-a) through (1)(-e) by a qualified person having an understanding of the technical content of the subject matter.
(3) Pictograms used to identify controls shall be described in the manuals. The pictograms should comply with ISO 7000.
1-1.9.5.3 Synchronized Lifts
(a) When using jacks to lift the entire load in a synchronized lift, uneven raising and lowering can cause cross loading, instability, and overloading.
(b) Some loads may require multiple lifting points and complex lifting procedures. A qualified person shall analyze the operation and instruct all personnel involved in the proper selection and positioning of the jacks and the movements to be made.
(c) When using multiple ratchet jacks simultaneously. ensure they are identical type (manufacturer, make. model, and capacity), or lifting rate to ensure they are evenly loaded during jacking.
(d) Unsynchronized lowering can cause an overload to a jack and may result in kickback of the jack handle or instability of the load.
1-1.9.5.4 BLocking
(a) While jacking. blocking should follow the load up or down to serve as an arresting device if the load falls.
(b) Wedges or shims should be used as necessary to ensure the load Is completely supported at its blocking points.
(c) Blocking should never be taller than twice the width of the blocking base.
(d) Blocking shall be of sufficient thickness, width, and length to prevent shifting, toppling, or excessive settlement of the load.
(e) Blocking shall be of sufficient strength to prevent crushing, bending failure or shear failure, and to adequately transmit the load’s weight to the supporting surface.
1-1.9.5.5 HorizontaL Jacking
(a) Applications may arise where jacks are used In a position other than vertical. These applications, referred to as horizontal jacking, require special attention.
(b) Horizontal jacking shall comply with the requirements of Section 1-1.9, as applicable.
(c) A plan shall be developed and communicated to affected personnel before horizontal jacking operations begin. The plan shall consider but not be limited to the following:
(1) load weight
(2) effects of friction
(3) angle from horizontal plane
(4) load stability and control
(5) obstructions
(6) jack base support
(7) jack support
(8) load contact point
(9) handle clearance
(10) center of gravity of the load
(11) personnel safety.
1-2.4.1 Proof Test Requirements
(a) Each newly designed hydraulic jack shall be proof tested by the manufacturer.
(b) All newly manufactured hydraulic jacks shall be proof tested by the manufacturer with the jack extended to a point of at least 25% of travel for single-stage types. and sumclent travel to ensure testing of all stages for multiple-stage or threaded extension-type jacks.
(c) The manufacturer or a qualified person shall determine if a proof test is required for any altered, modified, or repaired hydraulic jack
(d) After proof testing, the hydraulic jack shall be thoroughly inspected for the conditions stated in para. 1-2.8.4.
1-2.4.2 Proof Load Requirements
(a) When proof loading a newly designed hydraulic jack
(1) the jack’s load point shall be loaded to 110% of its lifting rated load and operated to its full length of travel through ten cycles (dynamic test).
(2) the jack or cylinder’s load point shall be loaded 3 times to 150% of its rated load. The ram(s) and screw extension shall be extended to at least 90% of full travel. After this test, the jack shall be functional for full extension under 100% of rated load (static test) and be free of leaks.
ASME B30.1 pdf download
