Trailer disconnect switch.

I guess a stick on the brake pedal was too simple

 

Or the brake trolley, but some company trucks do not even have one anymore.

 

Doesn’t help checking the truck

 

I don't know. Ive driven some early trucks with ABS and tractor braking is always difficult bobtail. Particularly the tractor in my avatar.

 

Yea, but the three buttons were long gone before abs came to be. I have a 96,97,and a 99, all three of which do not have real brakes unless the trailer valve is pushed in, all others of that era were the same way.

 

Unless it’s a trailer without spring brakes

Unless it’s a trailer without spring brakes. Yes you could use the spike if the truck has one

Because their trailer doesn’t have spring brakes

We have a trailer without spring brakes and you can chase that thing all over the yard trying to back under it if you don’t hook the lines up first and charge the system and apply service brakes

 

...or this
“With “Spring Brake Priority”, air pressure is routed directly. from the supply gladhand (also referred to as the “emergency” gladhand), to the spring brakes. This is accomplished in the. “Spring Brake Priority” provides the ability to quickly move a vehicle without waiting for the reservoir to fill.”

 

Lol... That makes me laugh... My first encounter with a trailer like that I did just that... I finally got it pushed up against a haystack and got it hooked up... About that time the truck boss showed up and started laughing as he examined the tire tracks from me chasing that #### trailer.

He says "How long that take you to get it clear over to the haystack?"

I told him " Longer than next time will take me... Cause when I'm done with it in parking it against the back of the haystack!"

Then he explained how to properly hook up that trailer. I felt like an idiot.