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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Belt tracking at bottom pulley Head shaft bearings and lubrication 12, Floor hoods and openings 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.
Requests that are not in this format may be rewritten in the appropriate a90.11 by the Committee prior to being answered, which may inadvertently change the intent of the original request. Steps or handholds are pro- hibited on the belt splice. If such guards are installed, each one shall be tested by applying a force of not more than 2 lb 9 N on the edge of guard nearest the hinge.
This was accomplished only with a great deal of individual member research and study, coupled with numerous meetings of the entire committee. Guardrails and gate operation TT-rr o V- 5 ft 1.
A time delay switch may be required as part of an electronic device installation to permit passage of empty steps.
The brake shall stop and hold the belt with test load within a maximum of 24 in. After three years of concentrated work, the Committee approved by ballot, ina completely revised draft of the A Such damage axme not continuous across the full width of the belt. Safety stops and rope control shall be checked weekly- Manlifts found to be unsafe shall not be operated until properly repaired.
ASME A90.1: Safety Standard for Belt Manlifts
Aeme manlifts are intended for conveyance of persons only. The material shall be laminated belt- ing, solid-woven PVC belting, or other belting meeting the strength requirements of para. Lighting of manlift runways shall be by means of circuits permanently tied into the building circuits no switchesor lighting shall be controlled by switches at each landing. All handholds on any given manlift should be located the same distance above the step treads.
There shall be no 90 deg shoulders machined onto any shaft in manlift machines or pulleys. The A90 Standards Committee regularly holds meet- ings that are open to the public.
ASME A90.1 (2003): Safety Standard for Belt Manlifts
Continue to watch and comment, as pertinent, as each trainee practices riding the up belt. Each safety stop shall be tested individu- ally.
No reproduction assme be made of this material without written consent ofASME. Head-pulley lagging shall be changed in conjunction with belt replacement. Arrows pointing in the direction of belt travel shall be marked on the belt below or above each handhold.
Upper safety stops 3. Follow manlift manufacturer’s recommended bolt pattern. Due to changes in technology and the desire to maximize manlift safety, the S90.1 set about the task of totally revising the A 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.
ASME A Safety Standard for Belt Manlifts
Top and bottom floor warning signs and lights Cite the applicable paragraph number s and provide asmme concise description. Head shaft, couplings, collars, and keys The request for interpretation should be clear and unambiguous. See Mandatory Appendix II for a sample inspection form. If a belt of at least 1.
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. Any stresses set up during acceleration or stopping are to be included in the above factor of zsme.
Where no pit is used, a dismounting plat- form on the down-side is not required see Fig. Manlifts shall not be available to the general public. A torn belt is also considered severe. The enclosure shall be equipped with an emergency exit. L Cole, Industrial Erectors, Inc.