In your chaining a machine example with 4 chains (one each corner) it is not just the 2 chains keeping it from moving forward. All 4 chains are pulling down to the trailer floor holding it also by friction. Just like how a strap on the top of a pallet keeps it from moving in any direction.
What is the reasoning behind WLL requirements?
Discussion in 'Flatbed Trucking Forum' started by Bdog, Jan 14, 2019.
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Sometimes more is just more. It isn’t always better.
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It takes less time to throw a couple of chains or straps than it does to try to explain to some DOT guy why you didn't.
Cattleman84, Diesel Dave, cke and 2 others Thank this. -
Maybe so, but the blanket statement of more is better isn’t necessarily true. By that logic why not wear a helmet with your seat belt.
Nothereoften, cke, kylefitzy and 2 others Thank this. -
Diesel Dave, cke, TripleSix and 3 others Thank this. -
The Bible is the guidelines for those who need law (that means you, Stupid) because there are people who would put 2 point securement on your 19k dozer.
For the most part, stick and brick haulers stick with indirect securement and OSOW guys prefer direct. Why does direct securement only get 50% the WLL of indirect? Because without the securement pulling in the opposite direction, it is useless.
EXAMPLE
Heavy equipment secured with 4 points of securement all pulling toward the rear of the trailer. The load is only half secured. In an accident or hard braking or bumpy road or on a curve, the load is going to shift.
What HP is saying is that all securement on a load should serve a purpose. Throwing all your securement on a load does not mean that the load is properly secured. It may be secured according to the Bible, but not everyone going to church is a believer, is he?singlescrewshaker, Diesel Dave, cke and 4 others Thank this. -
cke, PoleCrusher and TripleSix Thank this.
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cke, blairandgretchen and TripleSix Thank this.
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singlescrewshaker, Diesel Dave, cke and 3 others Thank this.
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What's this about half WLL for direct tiedowns? That's the first I've heard of it. What I'm given to understand is that indirect securement, ie. rail to rail, is allowed to be half the load in WLL, but direct tie downs must reach the full load weight in WLL. Is this just a more complicated way of stating it?
cke Thanks this.
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