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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L Cole, Industrial Erectors, Inc. Any wall in front of the down-running side of the belt shall be not less than 48 in.
A side landing area is not required at the bottom landing. All head pulleys shall be lagged i.
ASME A90.1: Safety Standard for Belt Manlifts
If a belt of at least 1. 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 request for interpretation should be clear and unambiguous.
L Weinhold, Central Soya Co. See Mandatory Appendix I for recommended training guide and program. The width of the step or platform shall be not less than the width of the belt to which it is attached. 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.
These main drive supporting members shall be designed to support the entire combined loads of the pulley, belt steps [ lb 90 kg on each, step], hand- holds, all of the drive machinery plus the bottom pulley and related bottom pulley components that contribute to the load on the head pulley. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate.
Such a ladder may be built into the supporting structure of the manlift and may be parallel to the plane of the manlift or perpendicu- lar to the plane of the manlift see Figs. No handhold shall be provided without a corresponding step. Machines shall be the direct-connected type. Belt 40 46 16 in. When subjected to a load of lb kg mass applied at the approximate center of the step, step frames, or supports and their guides shall be of adequate strength to: Frazelie, Archer Daniels Midland G.
These two safety stops shall function so that the manlift will be stopped before the loaded step has reached a point 24 in. The individual making the inspec- tion shall also make a special point to observe which persons are using the manlift and whether they are com- plying with the operating rules listed in para. The inspecting individual shall immediately report any unsafe acts or unauthorized use to proper personnel 8.
It 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.
Handholds 20, Photo z90.1 — sonic safety if applicable 4. Lower safety stops 2. The landing surface at the entrances and exits to the manlift shall be constructed and maintained to provide safe footing at all times.
Guide rails, proper alignment, fastenings, and support The breaking strength of the manlift belt shall be not less than 30, lb N minimum tensile strength for belts with ft 30 m of travel or less; 44, lb N minimum tensile strength for belts with aame ft 31 to 46 m of travel; and.
ASME A90.1 (2003): Safety Standard for Belt Manlifts
Both runs of the manlift shall be illu- minated at all times when the lift is in operation. This was accomplished only with a great deal of individual member research and study, coupled with numerous meetings of the entire committee. A top clearance shall be provided of at least 1. qsme
The SI units have been directly softly converted from the Asmee units. Vibration or misalignment in drive The distance between steps shall be equally spaced and not less than 16 ft 4. Fastenings for handholds shall be located at least 1 in.
ASME A Safety Standard for Belt Manlifts
The test shall be performed while the machine is stationary. The A90 Standards Committee regularly holds meet- ings that are open to the public.
A lap splice that has become cracked or damaged may be converted to a butt splice and returned to service, provided that the damaged area to the splice is completely removed. There shall be no 90 deg shoulders machined onto any shaft in manlift machines or pulleys. The fasteners shall be below the surface of the lagging.
The enclosure shall be equipped with an emergency exit. Belts shall be fastened by one of the following methods: All elevator bolts used for join- ing the belt or securing handholds or steps to the belt shall be installed and maintained so that the heads do not project beyond the inner surface of the belt see Table 4.
ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity. Only one rider per step is permitted. It is not the intent of this requirement to provide total enclosure. If a step is removed for any reason, the handholds immediately above and below it shall be removed before the manlift is again placed in service. Follow manlift manufacturer’s recommended bolt pattern. Jackson, Alternate, international Paper S. Belt look for cuts or damage