Posted by kcm.MN on May 20, 2018 at 07:41:02 from (174.219.1.162):
In Reply to: Question for YT DOT posted by John in La on May 20, 2018 at 06:41:55:
Hmmm.....What kind of wood is the crate made from? Gotta make sure the crate is strong enough for that chain! *lol*
I agree 100%. However, the two different setups will hold that load in different ways. Let's start with the load capacity of the chain from rail-freight-rail. It may seem like the chain would hold 13,200 lbs.; 6,600 lbs. in each direction. However, that ONLY works if the chain is secured at the freight in both directions, essentially making 2 chains out of 1 length. If you run rail-freight-rail with the chain just looped around an axle or such, then the entire chain still has a capacity of 6,600 lbs.
Now for the question of how the chain is applied; laterally or over the top. If the chain is going over the machine, such as those straps, then the chain would be holding the freight tight to the trailer - a vertical load. If the chain is secured as in the first pic, regardless of whether it is looped through or doubly secured, the chain will be holding a horizontal load. According to your photo, looks about like a 30/60 degree connection, so most of the tie-down force would be lengthwise on the trailer, with the other third holding the load side-to-side.
Just woke up, so don't know if I'm being clear as mud here. *lol*
...And wouldn't ya know, this was the first post! :shock:
....By the way, if you wonder which configuration would be better, BOTH! Always imagine worst case scenario. Imagine what would happen if you were in some sort of accident and the trailer (and load) rolls. Yes, yes...you're a great driver! You drive the speed limit and don't take chances. However, you're only one person on the road. Gotta watch for all the other crazies out there!! However, when hauling a machine like in the photo, I'm not familiar with any laws that state you must anchor your load over the top.
I can't see the enough of your machine to know if there is anything that might require (by law) to run a chain/strap over the top.
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