Cabovers

Here legal limit for width is 102" or 8' 6". Anything over that has to be permitted.
Legal axle and gross weight limit as folows: 12k on steering axle, 34k on tandem drive and the same on tandem trailer to a total allowed weight of 80k lbs regardless if your truck has 20 axles. Anything over 80k lbs has to be permitted with the exception of Michigan and few states in the north-west. Also a 10' spacing between axles allowes for 20k per axle. A tandem spread at 10' = 40k lbs max legal capacity, but legal max GVW has to stay at 80k lbs.

Under permit on continental US each axle is allowed 20k lbs, axle groups at maximum 3(tridem) 1-2 at 5' spacing, 2-3 at 5' spacing and a minimum spacing between groups at 10'. There,s some regional exceptions but if you travel over multiple states you better stick to the general federal rules. For Canada the rules are somewhat different and I don't really have detailed knowledge about that.
Michigan is the only state that doesn't have spacing restriction or limits on number of axles.

Is this helping any?

Oh, I forgot that some states have particular bridge laws for trailers over 48' long. For example California regulated the 53' trailers bridge laws at 40' from the kingpin to the centre of the last trailer axle. Other states have different lengths and measure procedures, like 41' from the kingpin to the centre of the tandem, .....etc. it's a real nightmare trying to stay legal when traveling coast to coast.

 

Dude, I'M JOKING!

Fire exting and emergency triangles is a must, but tools? Over here you've got to buy your own tools. When you buy the truck you don't even get a screw driver or a replacement fuse or light bulb. No first aid kit either.

 

thank you but what about when you have additional dolly and additional axles behind trailer


lets say about this trailer

it says 85tons ( is that metric tons or US?) on 6axles and dolly
http://www.loadkingtrailers.com/pdf_files/Load King 503 856 DD MB.pdf

how much is this trailer heavy with dolly and how much axles tractor need to have and how much goes on every axle

i see it says Three 30,000# axles


if i understand you good you had something similar?

 

I too am running a drop out goose neck, 4 steer axles on the trailer and 3 axles on the tractor, I'll use an interdolly for the really heavy stuff to bring me up to 9 axles, I need permits for loads exceeding 97,000lbs but the permits generally aren't load specific, they will cover any amount of loads in a monthly basis usually ( depends on which country) we don't have to space out axles like that, we only have an overall weight limit and axle limits , we need permits for anything wider than a foot from each side of the vehicle, an escort is needed when you go over 3.2 meters wide or 22 meters long

 

Nah that wouldnt work here, I had a Scania and in heavy wind while opening the door a gust of wind caught it and basically it sprained the door a bit, now no water was coming in just it made a little extra windnoise while moving, but you'd barely hear it, they driver refused to drive it until the door was fixed or replaced,

 

I actually drove one of those century class, yeah pretty poor quality especially the interior, I could move the dash with my hand, not very pleasant to drive either, they can't all be like that ?

 

Ya, that's US tons. Well that language with inter dolly and dolly this that confuses me. I'm old school and I use the terms used back in tha day. That at the rear of that trailer with the extra 3 axles used to be called a "stinger" or a "booster" and is sold separately, it has it's own VIN # and it gets it's own tag/plate. There is another unit that is coupled to the front of that trailer that was called a "jeep". Just another goose neck that is coupling to te 5th wheel on te truck and on it has a 5th wheel that receives the RGN you see in that picture. Those weight bearing imits on that info page has nothing to do with legal axle weight limits imposed by DOT rules. It only tells you the maximums of the weight bearing and deck surface concentration of weight allowed by that particular deck. Many times what the structure of the trailer can bear it's allot more than what you can actually load on it because you're restricted by the number of total axles in the combination. DOT don't care how strong is the structure of that trailer, they only care that you don't exceed the maximum axle weight and to be in accordance with the permit you received from that state DOT.

Trail king is a good trailer but they,re kinda too heavy. XL trailers and fontain are also the "heavy" ones. I had a Diamond, but they're not building anymore for sale, just for thir own operations. Very good, strong and light weight compared with the competition for tha same weight bearing capacity.

 

ok thank you

how much do you think this trailer or setup with 3axle on jeep legally

( i would like to compare weight of payload and required truck+trailer for same excavator as here to get idea how more difficult is heavy haulage there

 

Over here each state is different when it comes to the width and lengths that require escorts and usually when being over 14' 6" in height you might need a pole car. Some states start at 12' in width and others start at 14' before you need escorts on interstate multy lane highways. In almost every state when exceeding 14'6" and some Midwestern states at 14"6", 15'+ they require 2 front and back commercial escorts and in urban areas or certain coutyes with dens urban areas are required police escorts in addition to the commercial escorts.


Ps: sory for the mistakes. I use a darn iPad and this thing is a pain, it has a mind of it's own.
the only thing I like about this thing is that is light weight and the battery life is really good compared to a pc laptop. By the way I'm spending my weekend on the road in my truck. I'm north of the border this weekend, in Calgary AB. If no load shows up on the board tomorrow I think i'll just start deadheading south.

 

In general, 20k(20'000 lbs) per exile. If you have a 3 axle booster that is 60k lbs, + 3 axle trailer another 60k lbs, 3 axle jeep another 60k lbs, and a 3 axle tractor(providing that the truck has a 20k front axle rating) another 60k lbs. if you have an extra tag axle on the tractor (4th axle) just add another 20k to the all thing. If you have just a regular 12k, or 315/80R22.5 front that gives you only 17k, then do the math, extract the differences from the first calcul when all axles were rated at 20k.

Got it?