Tandem placement and turning radius

Discussion in 'Experienced Truckers' Advice' started by expedite_it, Jan 22, 2022.

  1. Long FLD

    Long FLD Road Train Member

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    Because frankly it’s mind blowing that someone with your experience has been asking these kinds of questions.

    When you have weight on your bags the air system is pumping air to the bags to keep your truck at ride height. When you remove the weight (in this case your trailer) the air is still going to the bags to keep it at ride height only now you’ve removed the weight within a couple seconds. And that causes the bags to extend because the leveling valve can’t exhaust the air that quickly when it’s trying to get the truck back down to ride height.
     
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  3. Last Call

    Last Call Road Train Member

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    Could of fooled me
     
  4. Long FLD

    Long FLD Road Train Member

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    There are probably tons of videos on YouTube. Search how semi truck air systems work, how air leveling valves work, truck electrical systems. Anything you’re curious about if you’re interested in learning.
     
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  5. expedite_it

    expedite_it Road Train Member

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    Thanks for letting me know, but I don't see why it's so mind blowing that I don't know this stuff.

    Since my trucking school never taught this, and my trainer did not teach me, and my teammates didn't do it, how the heck was I supposed to know about dumping the air bags?

    Since I was never a diesel mechanic, how was I supposed to know about the leveling valve and how the air bags work?
     
  6. expedite_it

    expedite_it Road Train Member

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    Since you want to write about academics, that is bad grammar. You should have wrote "You could have fooled me" if you wanted a complete sentence. If you just want to write a sentence fragment response, you should have at least wrote "Could have fooled me" or "could've fooled me". The word "of" is not a verb.
     
  7. Long FLD

    Long FLD Road Train Member

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    For many of us we learned the old way, from someone who let us ride along and learn the ropes and then letting us drive. If you don’t know this stuff it’s nothing against you, it reaffirms that companies are sending drivers out without the proper knowledge. And since you didn’t know differently you were comfortable as a trainer. It creates this endless cycle and we as an industry end up with who knows how many drivers that are in the same boat as you. You have the willingness to learn and you want to learn, but how many don’t and go through every day not knowing what they don’t know? Many of us will help if you truly want help.
     
  8. Long FLD

    Long FLD Road Train Member

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    Learning as much as you can about the truck will benefit you. Simply being able to describe what is wrong when you have a problem will save you time and make your life easier.
     
  9. REO6205

    REO6205 Road Train Member

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    That is trolling. Any attempt on your part to justify it or claim that you didn't realize it was trolling will not end well. Just so you know.
     
  10. Last Call

    Last Call Road Train Member

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    I reckon I'll take that in to consideration when I write my autobiography
     
  11. expedite_it

    expedite_it Road Train Member

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    Thank you. That's what I mainly come here for: to get advice and help from other drivers.

    Until about a year ago, I didn't know that I needed to dump the air out of the air bags when I slide the fifth wheel. So whenever I slid the fifth wheel before a year ago, it was a very violent process, sometimes some of my property would fall off my shelves in my truck. But about a year ago, I called breakdown to get them to walk me through the process in case I was doing something wrong. The guy at breakdown was making sure I was doing everything correctly. He asked me if I had extended my landing gear so that the air left the air bags. I didn't know what he was talking about at the time. So he told me I needed to get the air out of the air bags by extending the landing gear farther even after the feet of the landing gear hit the ground, or, if I had a "suspension dump" button, I could use that. Ever since then, I have been able to slide the fifth wheel a lot smoother and with more precision.
     
    Last edited: Jan 30, 2022
    Long FLD Thanks this.
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