Adjusting weight balances

There is no universal answer for that. Differant trucks and trailers have differant space between notches. Even on the same trailer the amount of weight shifted is going to differ depending on the load

 

For 5th wheels, it depends on the manufacturer or specs it was ordered for. 500 or 250 are popular.

Trailer pins also depend on manufacturer and spec, can be 200 250 or 300 are the most common.

 

Tandems forward puts it on the trailer, backwards on the tractor.

5th wheel forward puts it on the steers, backwards on the drives.

 

Think of it as a teeter totter, the farther back the bogies the heavier it gets on the drives.

 

Always move the wheels toward the problem. If you have 35000 on your rear slide the wheels back a few notch to make it closer to 34000. My trailer is 600 pounds per hole so i would slide 2 holes and scale again to verify im all good.

 

I know the search on TTR sucks but there has been some good threads on the subject.

Will repost this without any further explanation

 

I usually figure about 250lb per hole on the trailer.
For the fifth wheel. Forget it's even moveable.

If your lucky, your company will have the same trailers if not.. Have fun, since hole spacing will affect it,and some trailers will have different hole spacing.

 

and just hope you get mostly air slides that are not rusted into a single position

 

I figure about 2% of trailer tandems weight for every 6 inches as a rule of thumb.

(Assuming a 53 ft trailer and is loaded to about 48-50 foot line)

Consider 45k pounds of paper loaded back to about 40 foot... Most rules of thumb no longer apply in such a configuration in a 53. My point being unusual load configurations are hard to account for