Dumping air bags

Nothing like fresh air. Part of the new DOT pre-trip. Pennsylvania is starting that. Along with the shut down all interstates when rain/snow moves in.

 

I had one that did that. After a few times of it doing that and waking me up because I thought I got hit, I started dumping them so it wouldn't do it while I was sleeping.

 

I’ve heard of people lowering landing gear when they are heavy and will be parked 10 hours. Not airbags though.

 

What wears out your bags is them working, not while at rest, inflated or deflated.

 

That’s funny..... I guess I’ve been driving my own to long....

Air leaks out of suspension over a 34 reset.....equals fix air leaks.

 

I only deflated the aft spread in making very tight turning. and sometimes with trailers in the dock they will deploy a peg while deflating on their own. Otherwise we run em. They will come up soon enough when it's time to go.

I only had about three bags total combined with one entire trailer set that failed or broke in my time. We ran em. Occasionally the tractor air was dumped to get under the trailer when needed But not too often.

 

Jacking up vehicles is actually a tip for long-term storage.

 

If you set both your truck/trailer brakes on your 10 hr break and the next day your air bags are deflated or your PSI is close to or in the red shaded area, this means you have an air leak in your truck—only. Likewise, if you set only your truck brakes on your 10, the leak will be on either your truck or trailer or both. By the way, you can find the official air leak tests on the CDL drivers manual.

If you ever take your truck to the shop make sure you either know where the air leak is or there is an experienced mechanic available (typically the day shift). Otherwise, any newbie mechanic will look into it, not find it, and charge you for one hour of labor.

 

I only do it if I'm on a slight decline to lower the rear and level my bed, or at least get it closer.

 

Same here,
but i dont know if is a good idea, sometimes the air springs deflate overnight and truck hangs in trailer kingpin/ fifth wheel assembly. The 5th wheel jaws are not designed for vertical tensions .