Can someone plz explain to me about sliding tandems

When training new drivers. I trying to break it down to things most people can understand. Axle sliding, I used the See-Saw example. A fat kid gets on you need to move the pivot point . Most trailers each hole will move 250lb . Most 5th wheel sliders 500 Lbs.

 

You need to have a comprehension of how the load is situated in the trailer and how your trailer tandems become a pivot point. The heavier the back third of the trailer is, the more weight you can effectively change with a given distance of tandem movement

tandem basics by STexan posted Oct 5, 2014 at 10:02 PM

 

What is the three large numbers on the original weight ticket?

Steers, Drives and Tandem? Please... let's get through this so we can move on. Once we teach this man how to scale his fish for life, he will be able to feed others witht his knowledge.

 

I cannot emphasize enough how rare it is to move a perfectly positioned 5th wheel, especially in the things like flatbedding with a trailer you might not disconnect from for months.

Moving the 5th wheel back makes your tractor somewhat unbalanced for lack of a better word. Moving it forward threatens your catwalk space, but also contact between the two as well.

I could go on for months. At the moment I don't think the situation requires it.

Also one of the ways to dermine how much is moved by a hole is to examine how far apart a hole is. If its a foot visually, then it's 750 pounds for sure. Not so far apart it's 250 pounds.

Do not. if at all posible southern now and later is the ideal situation

 

I,m think it must be a typo. If he as only 43646 gross than it would be almost impossible to be overweight on any axle group but if the OP will not reply back we are all left guessing.

 

Some trailers have closer holes that are about 250 lbs per hole, some are 4-500 a hole if they are farther apart. That being said, if you have a trailer that's 3k over and the tandems are at the 41 foot mark, you probably won't be able to slide them enough. If your bills show 44k and the back ten feet of the trailer is empty, and it's an equally distributed product, you won't get it legal. Some guys on forklifts load it, then shut the doors, only worrying about the product getting off the dock. Out of sight out of mind. Also, if your truck has a suspension pressure gauge, typically 60 psi is about 34 thousand on the drives, and a little math helps you figure the rest.

 

I started just under 2 years ago and will confirm that training these days sucks. The school told me the company would teach me about sliding 5th wheel and tandem, but my trainer refused saying it's the schools job. I learned from YouTube and a flatbeder helping me. My backing training was him telling me "put it in the hole" , then he went in to the iron skillet for 2 hours while I practiced by myself. This is the new norm guys