ASME Code Corner

Code Corner 2006.1

Maintenance Requirements in Section 8.6 of ASME A17.1 dramatically affect existing installations.

Many building owners and operators are under the mistaken impression that the A17.1 Code governs new installations only. That is no longer completely correct. In fact, there are dramatic impacts on existing installations that may require retroactive upgrades that every owner should know. Some of the many requirements are simple to accomplish as long as the responsible party for maintenance is held accountable:

There are many more requirements from describing alterations and parameters for repairs and replacements to methods and replacement part requirements. However, the most significant retroactive obligation is with requirement 8.6.8.3, the Escalator Step/Skirt index. Make no mistake; A17.1 requires certain performance requirements for all escalators. This is not a rule for new escalators only.

Many owners will find that their older escalators will fail this new test and will have to make significant investments to meet this retroactive requirement.

Code Step/Skirt Performance Index Lubrication Allowed Loaded Gap Required
< A17.1d-2000 and A17.3 ≤ 0.15 Skirt deflector not required
> 0.15 to 0.4 Skirt deflector required
> 0.4 Not in compliance
Yes Indirectly
A17.1d-2000 ≤ 0.15 Skirt deflector not required
> 0.15 to 0.4 Skirt deflector required
> 0.4 Not in compliance
No Yes, 5 mm
A17.1-2000 ≤ 0.15 Skirt deflector not required
> 0.15 to 0.25 Skirt deflector required
> 0.25 Not in compliance
>No Yes, 5 mm

If you have an escalator and do not meet the requirements in this table, you may have a significant investment to make in your equipment. If you have any questions regarding your equipment, please email me. VTX

 

We at VTX deal with code issues on a regular basis. It is very likely that your question is not new to us, and we can help quickly. It is not uncommon for us to bring a request for interpretation for our clients before A17.1. Just remember that ASME wants the requirements to be clearly understood, so get it clarified, it could dramatically affect your project or operation!