Thanks for the info. Perhaps I was not clear enough. The cage would only be used by mechanics while performing inspection and maintenance of the chains and roller bearings. It would not be used as an "attachment" - for example, during order picking. It would be removed immediately after maintenance. Certainly, one mechanic and a few tools would not be over capacity ? Although, the load center might be extended should the mechanic step back to admire his work. In all seriousness, will review your citations. Appreciate your responses, believe you've also answered my previous questions. Cordially, Bud Cohan