What do you actually check on a pre-trip inspection?

I have been a company driver for my entire career. I'm only allowed to make very simple repairs like replacing a defective license tag light, replacing a defective glad hand seal, and things like that. I'm not allowed to make major repairs. So I had no reason to learn how the hub oil seal works. If I saw a wheel end apart, I never examined it or paid much attention to it. A person does not learn by osmosis. A person has to make an effort to learn.

I think if you did a poll of truckers who have been company drivers their entire careers and have nine years of experience like I do, I think a lot of the company drivers would not know to check for hub oil seal leaks on the inside of the wheel. You'd be surprised. The people that read this thread that did not know themselves about this just don't post about it to avoid exposing themselves to ridicule.

 

The fact that the whooshing is normal makes it difficult for me to differentiate normal whooshing with an air leak. Do you ever have the same problem?

That is the first time I have ever seen anyone write oil bath hub with the word bath in it in my life. Could you take a photograph of that oil bath hub closer to the three little windows so I can see that with better resolution?

The hubs on the outside of the trailer wheels on the trailers at my carrier don't have those three little windows. So my company probably has the grease hubs.

 

Yes; that's why I created this thread, and that's why I ask. I want to learn!

 

I used to attend an HVAC program at a trade school. One of the students that was in my class is deaf. The trade school hired a sign language interpreter to attend the trade school with him and communicate with him everything that the instructor said by sign language. When the deaf student had attended the trade school for a whole year, I told the interpreter that he must be learning a lot about HVAC by being an interpreter for this deaf student in this class. To my surprise, the interpreter told me that the interpreter learned almost nothing about HVAC in the class because he was not trying to learn it. He was only trying to interpret and communicate with the deaf student. That's when I realized that people don't learn by osmosis. You have to pay attention and make an effort to learn in order to actually learn.