Instructor teaching wrong

Pull the instructor and school official aside. Show credentials and explain what you saw...safety first not bad info.

 

This right here. Any good instructor will take the correct info and pass it along.

The two things that make an instructor good are always learning (being a student for life) and always remembering what it's like to be the student.

 

If they say buzz off, call a Dot buddy for an inspection.

 

Wait until class is over. Find the school official, show him your credentials. Once you are accepted as such, Particularly the federal air brake etc. You and school official corral the instructor quietly in a office away from the students and fix this problem.

If the school refuses to do anything? Whistle the dogs to go through the place before the rest of the students get damaged from this bad material.

I have never stopped learning this and that and frankly any chance for correction or possibly fixing a flawed instruction in something pretty important as airbraking has to be good.

Whatever happens, keep your mouth shut in class. If the school is any good they will sort it out quietly. If they are not? Well there is a chance it will be a unholy mess before long.

 

Like others say, wait until you are outside of class. But make 100% sure you are right. You could have been taught wrong to begin with and the instructor is actually the correct one...

What is he claiming you think is wrong?

 

If it's his job is to teach people how to tell time, be careful pointing out that he isn't correctly explaining how to build a watch. That could come back to haunt you.

 

I keep a box of bolts big enough to back off brakes on the old trucks in my time. Please tell me that there is no mythical emergency air tank designed solely for backing off stuck brakes. Yes there is a wet side and a dry side plus a tractor protection valve and air dryer. Then the trailer has one for releasing brakes under the red glad hand line and a service line (Blue) for braking while driving.

In short I think I agree with you that the instructor is incorrect in stating there is a extra tank somehow able to released locked spring brakes. Ive always done that with maxi bolts out of the box by hand when necessary.