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Rigging Check


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I've been given the task of adding additional truss to an existing span which is controlled by electric chain hoists, as the company who carried out the original installation are no longer around!


I've done some rudimental calculations which I'm more than happy with, but would like someone to run an eye over them and the plan on installation to ensure I'm not missing anything and to confirm that the original installation is up to the job, and regulation, as I obviously didn't do the install in the first place.


Do such services exist? if so can anyone recommend someone in the Yorkshire area and suggest how much I should expect to pay?



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Do you have any documentation with the original installation?


If you have any doubts at all about the structural integrity of your rigging points, you might need to engage a structural engineer.


If hoists and truss haven't been "thoroughly examined" in a long while (by default that would generally mean 12 months or more) that'll definitely want doing. I would be one of a fair few on this forum who would recommend Pete Smith of Pete Smith Inspections Ltd. for that. (He isn't local I'm afraid.) There are a various crane and general lifting gear companies much closer who might be fine, but you probably wouldn't be getting much er.. specialist knowledge, especially concerning aluminium trussing.


Do you know the make/model of the existing truss etc.? Have you been able to find manufacturers' specs for the hoists, load charts for the truss etc.?


You might try giving UK Rigging a shout. Though I don't know, to be honest, how interested any of the companies who install this kind of thing would be in consulting on an installation they're not doing themselves. I wouldn't have the foggiest idea regarding the cost I'm afraid - I have zero experience of commissioning this kind of work.


If it would be any good to you to have a reasonably experienced rigger "run an eye" over your plans in an entirely informal way, just by way of a bit of error-checking with no liability accepted and no indemnity insurance whatsoever, that would cost you a cup of coffee and a slice of cake, or possibly a pint of beer and a packet of crisps. Drop me a PM - I'm in your neighbourhood and my silly season has ended (for now), so I'm open to excuses to avoid the chores for a bit.

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