I wrote this in reply to a similar question a coupe weeks ago:
I've learned how to use the CAT scales at most truck stops. No messing around, very easily located in the yellow pages or Google if you need to seek one out locally.
You pull up on to it (they're generally slightly elevated) and place your coach so your axles are on different sections of the scale (each section clearly marked with big yellow lines). Make sure you're tires aren't to close to one of those lines, which can cause bad readings. Anyway, with the coach set on the scales properly, go in and ask them for a weight slip. That will show you both your axle weights. Then ask them if you can be reweighed. It'll cost you another dollar. Go out and pull forward off the scales, then circle around and pull back on them. This time, pull the coach up so one set of wheels (left or right, makes no difference) are to one side of the scale tables - leaving just one side on to be weighed. Generally this is pretty easy as there's 3-4 feet of concrete on each side of the scales allowing you to do this (If you aren't sure of yourself, I doubt seriously you'll see anyone snickering if you have somebody guiding you. Most could care less...). Same thing locating on the tables, check to see your axles aren't real close to the edge of the table (yellow lines). That assured, go ask for your second weight slip.
The first slip will have the gross axle weights. The second, one side. To get the second side, subtract the second weight slip from the gross (the first) set of weights.
Easier to do it than write it out. I could probable actually do it faster than I wrote this! Total cost, less than 10.00, and I've never once had a truck waiting on me to finish my screwing around. I have had though, some pretty inept people on the other side of the counter, who for the world could not figure out what I was doing. I've found they either get it or they don't. Don't try to change them either way. It's clear in my head what I'm doing and why, and they're generally pretty good with that....
Congrats on the new coach!
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake