Formula for sliding tandems

On our trailers its usually around 275 to 400 lbs.per hole depending on the freight.Anything under 36000 lbs in the box put it at the 41 ft mark and you will be legal unless you have that weight on a total of less than 18 pallets.If so move the tandems all the way up and scale for reassurance.36000 OR LESS ON 24 PALLETS PUT IT AT THE 41 FOOT MARK AND ROLL.No need to scale.Your going to be legal.

 

Your blue student hand book has a sliding tandem diagram as well..

 

Cargo weight varies, where it is in the trailer varies, how much is on a pallet varies, put all that together and the formula would be unknown/unknown =unknown.

Slide, weigh, repeat.

 

it's supposed to be around 500 per hole.but to be safe 400 is avg.depends on how the load is loaded as well tho.

 

This is on a trailer where I believe the holes are about 6 inches apart.If the trailer has shorter holes,lets say 3 inches apart,then of course that formula would change to half of that.But this is a good rule of thumb.Your first scale with lets say 20 to 24 pallets put it at the 41 foot mark and scale.75 percent of the time you will be legal and will not have to move the tandems at all.Just my experience.Going in to Cali you have to be at the 40 foot mark or less,so scale first at this length.With 6 inch holes the 40 foot mark is the fifth hole,41 foot mark the 7th hole.Hope this helps.

 

Yes you are correct.Ive seen it as much as 500 lbs,or as low as 275 .400 is a good starting point.Here is an example.If your at 34500 on your tandems and 31500 on your drives,move it back 3 holes and your going to be legal,No need to be scaled again.Roll.That is if your holes are 6 inches apart,lol.

 

differant trailers have differant hole spaceing, thus no formula with the holes....BUT you move 850lbs per FOOT, thats the "formula" your looking for.

so if your holes are 6" apart, and you need to move 1600lbs you need to move 4 holes...




American Trucker

 

on our trailers it's between 185 and 400lbs per hole depending on the series of trailer, weight, where it's loaded in the trailer ect ect ect.....the only way you're going to knwo for sure is once you get on with someone and start keeping data on the different types of trailers they have, hole spacing, and then you get a good idea.....i've found over time of tracking this kind of thing by trailer series that a good ballpark average for my company is 275 per hole and go from there.....it gets me a good balance unless i'm close to being over on the drives or tandems and then you have to be a little more precise but that 275 will get you pretty close every time. on ours lol yours may vary