How to scale a heavy truck

like a flat bed with product hanging over the back 10 feet or over the front more than x amount of feet from the center of the kingpin... has nothing to do with bridge... just with teh amount that hangs out passed the ends of the trailer not the sides....

 

I'll admit...I don't know much of anything about the rules and regs or laws to commercial vehicles in Canada...but (refer to highlighted above)...this poster is referring to trailer tail and tandem position. Perhaps the term "overhang" is what is throwing me, I have always watched and been aware of "tail swing", an issue with the rear of the trailer and the forward most position setting of the tandems.

There are some trailers that the tandem rails can come to almost the center position of the trailer, I have seen these but never pulled them...with the tandems so far forward, in a restricted area turn (tight turn) with obstacles in close proximity, the tail end could swing beyond the tracking difference causing the trailer to come in contact with these obstacles. But I have never heard of any rules or regulations or laws with regard to this situation.

Again I ask...can anyone explain this or direct me to the rule or regulation that specifically covers this?

 

We have a lot of Boom trucks (pickers) that pull flatbeds with the wheels that slide to near the center, that's because these tri drives weigh so much that you can only put a few pounds on the drives and the rest has to be on the trailer.

To give you an idea of rear overhang, Alberta allows 20 feet from the center of axles on a tandem or the center of the center axle on a tridem. British Columbia has the same rule at the front but allow 20 inches more over the back than Alberta does.

 

OK...I can accept that easily...but the post in question, the poster refers to "these states" and also refers to US....or am I reading into the post?

Reread the post and see if you see what I am seeing.

thanks!

 

You're reading it properly, I just ised examples as I'm sure the regualtions vary from state to state. A person would have to go to these states on line to the permit section for the regulations.

 

OHTW: Maryland has an "overhang" law. The rear of your trailer behind your tandems is not allowed to be more than 30% of total trailer length...I believe that's the percentage. It equals out to about 18' for a 53' trailer. You can move your tandems as far forward as you want as long as there is less than about 18' behind the rear axle. It's the only state I know of that has that. Apparently, people were sliding their tandems all the way forward and forgetting about pivot swing.

 

Thanks Injun...now I can sleep!LOL

Now, kindly go to the "14 hour rule" thread and clean that one up!

thanks again!

 

Man,

that IS a heavy rig.

Good Luck !!

 

Boy that thing is heavy. It seems the weight would hurt big company fleet sales somewhat in favor of model/makes that weigh in a little lighter.