Combines What our Case dealer told us

If you want to pull a second trailer (doubles) they can only be 28.5 feet long in most states. As far as I know this is the only way legally you can pull 2 trailers with a tractor in all states. Wyoming,Montana and a few western states might be different. If any one knows different please post.

If I do the math you are overloaded on your trailer axles according to the bridge law. To haul 53000 lbs. on your 3 trailer axles you would need a 23 ft spread from your front trailer axle to your rear trailer axle. I am probably wrong but it looks to me like you might at the most have a 15 ft. spread which only allows 47500 lb. on those 3 axles. Does not the bridge law apply where you travelIJ

You are absolutly correct. To be legal in Ok,KS,Ne,Co you can pull doubles as long as they are like you say 28.5 each unit. As far as wyoming goes your overall length is 117 feet in combination. I myself believe down the road with the bigger machines we will havt to have around a 42-45 foot trailer and only haul the harvester on it. The head will have to be hauled seperate. When you figure the bridge law into effect it makes things tough. When I was at the port this summer with a semi and a 53' double with a spread they claimed with my bridge I was good for 92000 in Wy but in the same sentence I couldnt exceed any weight on any axle, so 40k on the spread,36k on the tandums and that would leave me 16k on the steers. It is all a goofy deal on the weights and bridge but it is the way i guess...

As far as I know, the bridge law determins the spread between the tractor tandems and the first trailer axle. I don't know how much that needs to be but this is why all grain trailers have to be at least 42'long. A farmer I know has an old 40' grain trailer and got stopped and ticketed once for that reason. For a spread axle to be a legal spread axle means that it has to be at least 10' away from the other axles. Than this one axle is allowed to carry 20.000lbs all by itself.

Yes, there is a length limit for the combination of two trailers, but I am not sure about the number. I think a guy was talking about a total of 80 feet. The trouble is, that each state has different rules.

Okay, now here is a little different scenario I have seen. I worked for a custom harvester once who had semi trailers to haul his combines. He had 1688 CNHs. The combine trailer was just slightly longer than the combine. The trailer tandem axles were behind the combine. We drove the combine on from the side. (These trailers were made out of older A-frames). On top of those tandems he had a fifthwheel to hook up his short single axle grain trailers. We hauled all three headers on one separat trailer. Another guy had a similar setup. But he pulled his short grain trailer with a dolly behind the combine trailer. The front and back wall of the hopper bottom would fold up to slide the header inside. Most states let you get by with the header sticking past the trailer ends.

Oh. I thought the bridge law applyed to every group of axles on truck and trailer.

He did it but was it legal. Nebraska burned us once for having our header sticking out front on a 53 ft. trailer.

It is quite tough to make it right for every state. I can't give a good advice on that. On the link below you can find more combine hauling setups.