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.
|Published (Last):||9 August 2015|
|PDF File Size:||10.17 Mb|
|ePub File Size:||15.35 Mb|
|Price:||Free* [*Free Regsitration Required]|
Explain the “why” of each rule. 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.
Due to changes in technology and the desire to maximize manlift safety, the Committee set about the task of totally revising the A No step shall be provided unless there is a corresponding handhold above and below it meeting the requirements of para.
Several new members were added to the Committee in this process. 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 level refer to para. Work was started in on a revision of this Standard.
No handhold shall be provided without a corresponding step. 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.
ASME A90.1 (2003): Safety Standard for Belt Manlifts
If a step is removed for any reason, the handholds immediately above and below it shall be removed before the manlift is wsme placed in service. The minimum and maximum distance from face of belt to edge of floor openings as shown in Fig, 1 is applicable to 12 in. A side landing area is not required at the bottom landing. Guide amse, proper alignment, fastenings, and support One of these devices shall activate while the step is still in the horizontal position.
Lubrication per maintenance manual The same series of tests as outlined in this paragraph shall be performed by the owners on an annual basis. Vibration or misalignment in drive The brake shall stop and hold the belt with test load within a as,e of 24 in.
Only one rider per step is permitted. Where sepa- rate switches are provided at each landing, any one switch shall turn on all. Head shaft, couplings, collars, and keys If a handhold is removed permanently or tempo- rarily, the corresponding step and handhold for the opposite direction of travel shall be removed before the manlift is again placed in service. Be ready to pull the rope, if necessary. Any wall in front of the down-running side of the belt shall be not less than 48 in. The original Sectional Committee consisted of 19 members representing manufacturers, users, insurance groups, enforcement officials, and indepen- dent specialists.
Corners of gates shall be rounded. Manlifts shall not be available to the general public. The strap must extend not less than 3 ft 0. Head shaft bearings and lubrication 12, Floor hoods and openings As such, users of this Standard may inter- act with the Committee by requesting interpretations, proposing revisions, and attending Committee meetings.
A manual reset shall always be located at the top land- ing. Overall drive assembly and support structure The landing space adja- cent to the floor openings shall be free from obstruction and kept clear at all times.
The automatic safety stop may con- sist of one.
Full text of “ASME A (): Safety Standard for Belt Manlifts”
It may be useful to have all floors and landings numbered or identified by name to eliminate confusion by a901. Speed tests shall be taken and checked against specified rated speed.
In lieu of the 66 in. Manual resets are permissible at top and bottom landings only 5. 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.
Seif-closing gate 24 in. All other safety stops shall be manually tested. The material shall be laminated belt- ing, solid-woven PVC belting, or other belting meeting the strength requirements of para.
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. A written inspection log shall be kept of findings at each inspection and be signed and dated. The hood shall be made of not less than No. Jumping on the step, yanking on the handhold, or horseplay of any kind is prohibited. At the bottom landing, the clear area shall be a minimum of 30 in.
See Mandatory Appendix II for a sample inspection form. 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.
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 emergency brake, if installed, shall be tested per manufacturer’s procedure. 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 such rights, is entirely their own responsibility.