Manlifts covered by this scope consist of steps (platforms) and accompanying handholds mounted on, or attached to, an endless belt operating vertically in one . Donor challenge: Your generous donation will be matched 2-to-1 right now. Your $5 becomes $15! Dear Internet Archive Supporter,. I ask only. ~^k * * ASME A (), Safety Standard for Belt Manlifts as incorporated and mandated by the States and Municipalities, including the Minnesota.
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Search the history of over billion web pages on the Internet. Ignorance of the law shall not excuse noncompliance and it is the responsibility of the citizens to inform themselves as to the laws that are enacted in the United States of America and in the states and cities contained therein. No reproduction may be made of this material without aske consent of ASME. January 30, The next edition of this Standard Is scheduled for publication a9.01 This code or standard was developed under procedures accredited as meeting the criteria for American National Standards.
The Standards Committee that approved the code or standard a90.11 balanced to assure that individuals from competent and concerned interests have had an opportunity to participate.
The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the pubiic-at-large. ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity. ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability.
Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of x90.1 rights, is entirely their own responsibility.
Participation by a federal agency representative s or person s affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard. ASME accepts responsibility for only those interpretations of this document issued in accordance awme the established ASME procedures and z90.1, which preclude the issuance of interpretations by individuals. No part of this document may be reproduced in any form, in an z90.1 retrieval system or otherwise, without the prior written permission of the publisher.
The original Sectional Committee consisted of 19 members representing manufacturers, users, insurance groups, enforcement officials, and indepen- dent specialists. Work was started in on a revision of this Standard. Each provision of the original code was carefully evaluated in the light of considerable practical field experience.
ASME A Safety Standard for Belt Manlifts
A draft revision was completed in and approved by letter ballot in Prompted by several serious manlift accidents, the Committee, through correspondence inconsidered additional changes to the standard. Due to changes in technology and the desire to maximize manlift safety, the Committee set about the task of totally revising the A This was accomplished only with a great deal of individual member research and study, coupled with numerous meetings of the entire committee. After three years a0.1 concentrated work, the Committee approved by ballot, ina completely revised draft of the A Several new members were added to the Committee in this process.
Bursiek, Vice Chair j. Barnes, Alternate, Barnesco, inc.
Basnight, International Paper C. Jackson, Alternate, international Paper S. Buchanan, Rubber Belting and Hose B. L Cole, Industrial Erectors, Inc.
Cole, Alternate, Industrial Erectors, Inc. Favro, Humphrey Maniift Co. Frazelie, Archer Daniels Midland G. Hauber, PermaTron Elevator, Inc. L Weinhold, Central Soya Co.
As such, users of this Standard may inter- act with the Committee by requesting interpretations, proposing revisions, and attending Committee meetings. Aeme should be addressed to: Revisions are made periodically to the standard to incorporate changes that appear necessary or desirable, as demonstrated by the experience gained from the application of the standard.
Approved revisions will be published periodically.
The Committee welcomes proposals for revisions to this Standard. Such proposals should be as specific as possible: On request, the A90 Committee will render an interpretation of any requirement of the standard.
Interpretations can only be rendered in aske to a writ- ten request sent to the Secretary of the Standards Committee. The request for interpretation should be clear and unambiguous.
Cite the applicable paragraph number s and provide a concise description. Awme the applicable edition of the standard for which the interpretation is being requested. Phrase the question as a request for an interpretation of a specific requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation.
Requests that are not in this format may be rewritten in the appropriate format by the Committee prior to being answered, which may inadvertently change the intent of the original request.
ASME procedures provide for reconsideration of any interpretation when or if additional information which might affect an interpretation is available.
Further, persons aggrieved aeme an interpretation may appeal to the cognizant ASME committee or subcommittee. The A90 Standards Committee regularly holds meet- ings that are open to the public. Persons wishing to attend a9.1 meeting should contact the Secretary of the A90 Standards Committee. Page 1 2 13, 14 17 18 20 Location 1. Manlifts covered by this scope consist of steps plat- forms and accompanying handholds mounted on, or attached to, an endless belt operating vertically in one direction only and being supported by, and driven through, pulleys at the top and bottom.
These manlifts are intended for conveyance of persons only. Aa90.1 is not intended that this scope cover moving stairways, eleva- tors with enclosed platforms Paternoster elevatorsgravity lifts, or conveyors used only for conveying mate- rials. It is intended for use as a standard reference for manlift safety requirements by manufacturers, architects, plant designers, installers, and consulting engineers, and for users of manlifts through voluntary application and for governmental authorities.
Manlifts shall not be available to a900.1 general public. The SI units have been directly softly aa90.1 from the Customary units. The minimum and maximum distance from face of ssme to edge of floor openings as shown in Fig, 1 is applicable to 12 in.
A torn belt is also considered severe. Such damage is not continuous across the full width of the a0.1. New installations shall have minimum floor openings of 30 in. Floor opening widths for both the up- and down-runs for existing installations shall be in accordance with Table 1 and Fig.
All floor openings for a given man- lift shall be uniform in size and shall be approximately circular, and each shall be located vertically above the opening below it. The clearance between the floor or mounting platform and the lower q90.1 for the underfloor hood above it required by para.
Where this clearance cannot be obtained, no access to the manlift shall be provided, and the manlift runway shall be enclosed where it passes through such floor. The enclosure shall be equipped with an emergency exit. The landing space adja- cent to the floor openings shall be free from obstruction and kept clear at all times. The landing space shall be at least 2 ft mm in width from the edge of the floor opening used for mounting and dismounting see Figs.
Adequate lighting, not less than 5 fc 54 lxshall be provided at each floor landing at all times when the lift is in operation.
The landing surface at the entrances and exits to the manlift shall be as,e and maintained to provide safe footing at all times. Where there is a travel of 50 ft 15 m or more between floor landings, one or more emergency landing s shall be provided so that there is a landing either floor or emergency for every 25 ft 7.
All such platforms shall then be considered part of the emergency landing and provided with standard railings and toeboards. On the up-side of the manlift floor, openings shall be provided with an underfloor hood meeting the following requirements see Fig. The underfloor hood shall make an angle of not less than 45 deg with the horizontal.
A9.01 lower edge of this hood shall extend at least 44 in. It shall not extend beyond the upper surface of the floor above. The hood shall be made of not less than No. Where the fixed hood specified in para. The depth of this floating hood need not exceed 12 in.
The entrances and exits at all floor landings affording access to the manlift shall be guarded by a maze staggered railing or handrail equipped with self-closing gates see Figs.
ASME A90.1 (2003): Safety Standard for Belt Manlifts
Seif-closing gate 24 in. On those sides not used as a landing, the guard- rails shall be extended to a minimum height of 66 in. In lieu of the 66 in. This minimum 66 in. Gates, if used, shall open outward and shall be self-closing.
Full text of “ASME A (): Safety Standard for Belt Manlifts”
Corners of gates shall be rounded. Entrances at all landings zsme be in the same relative position. Entry shown on two sides; entry on one side is adequate.
If located in buildings to which the public has access, manlifts shall be located in an enclosure protected by self-closing, spring-locked doors. Keys to such doors shall be limited to authorized personnel 4.
ASME A90.1: Safety Standard for Belt Manlifts
At the bottom landing, the clear area shall be a minimum of 30 in. A side landing area is not required at the bottom landing.
Any wall in front of the down-running side of the belt shall be not less than 48 in. This space shall not be encroached xsme by stairs or ladders see Fig. If a dismounting platform is used, the edge of this platform should be in line with the outer edge of the openings at the upper floors. Where a difficulty of dismount at the bottom landing is present, a riser may be used qsme it does not exceed 10 in. The bottom pulley shall be installed so that it is supported by the lowest floor served; or, where it is necessary to gain required clearance see para, 4.
Where a pit is used or a dismounting platform is provided, two safety stops shall be installed on the down-run to stop the manlift in case the step is ridden past the dismounting xsme refer to para. Where no pit is used, a dismounting plat- form aa90.1 the down-side is not required see Fig.