What is the Johnny bar for?

@WitchingHour I used to have an air brake endorsement on my license when I was in highschool. There is no age restriction on air brakes so I took an air brake course at 17 and had it applied to my regular driver's license. Now because you cannot obtain a class 1 CDL in Alberta without having air brakes, the endorsement no longer shows once you upgrade your license as it is implied that you have air brake certification. If I were ever to lose my CDL, my car license would be issued as a class 5 with a "Q" endorsement listed.

 

Yeah, in Canada... had something similar when I had a South African E+C, as well. But I was referring more to US licenses, and the person I quoted holds a license in the US.

 

that was it's other job

 

No, you just don't release the trailer brakes.

 

Truck at my old company was an "antique" 2014, had one as well as every other truck in the fleet.

 

When pulling doubles/triples, I use it straighten out my set when the kite starts wagging.