Overweight steer axle

Why would setting my brakes on the scale be an issue? I don’t understand how that would be a problem. My previous employer had their own scale and we would have to park on the scale and go into the office and print the ticket. The truck and trailer has been at the mechanic for the past week getting other stuff fixed, I haven’t heard back yet if he’s figured out the weight problem. The tractor seems to have too much weight on the front axle without a trailer, so I’m inclined to think the 5th wheel setting probably isn’t the problem.
Thanks everyone for your help, I hope this gets solved soon, so I can get back to work.

 

Thanks for the lesson. My first job out of school was hauling containers to the port. The dispatcher handed me the keys to a 2020 Cascadia automatic and said see you later. The school had standard transmission Volvos. I had to go down Cajon pass fully loaded. I got into the truck and then had to go find someone to tell me where the engine brake was. That’s the level of training I got. Did that for a couple of years until I had enough money saved for my airplane habit for a while. Then a few weeks ago my son in law got tired of his driver tearing up his truck and fired him. Then he showed up at my house and said that he needed me to drive for him. I’ve been trying to get the truck squared away since. It’s been a learning experience and I know that I’ve still got a lot left to learn. After the overweight issue I took the truck to his mechanic and had him start on a long list of stuff that had to get fixed. Hopefully I’ll get it back tomorrow. I’m not convinced that the mechanic knows what’s wrong with the weight issue. That’s why I posted here. Thanks again.

 

Picked up the truck today and scaled it and all seems normal. It appears that it was the leveling valve that was the problem. I have to wait a couple of days for the trailer to be ready. I guess after that I’ll find out for sure when I get my next load. Thanks for your help.