non-stop trailer air freezing

Have a shop look at it. IF the trailer's valving and gauge telling you that it's not functioning well, try to find it.

Airbraking I understand. But I tell you off the bat I am NOT a fuel tanker man, I know nothing about these internals you speak of. In my time tanker work involved hand operated valves that were disassembled, sterilized, cleaned and ready for the next day's load.

You talked about gadgets going to 50 pounds. You did not explain what it likes to be at. Or detail the maximum air pressure allowed. I am forced to assume you are unhappy with poor trailer only giving you 50 pounds. Darn thing is not feeling well today is it. What are you trying to get off your gauges to know that everything is 100% in your work?

Now there is a side bar to your posting.

Vapor Lock. I'll explain that if it's foggy and 45 degrees prior to sunrise my car will love it. A old 70's era 351 winsdor that has been modified beyond sanity. I go to work. Park. Come back out to go drive to lunch. It's sunshine and now 72

She aint going to start today. She has the electric for crank and spark off the points and she has the compression. But the actual fuel off that double pump holley is going no where past the venturi because it's vapor locked.

The only way to solve that is to take a cup of gasoline pour it into the carb while cranking, a spark will light it all into a column of fire until the locked vapor cap is burned through. Then she will start once the firing order etc is all settled into the right mixture etc.

I hope you can teach me a little more about your gasoline tanker, I am anxious to learn more. I have a feeling that it's being tempermental for a very good reason, and cannot put my finger on it. There is a spike of really dry humidity working east from where I am and should it hit your area I bet your trailer will dry out and don't need to say.. blow it's nose anymore or take decongestants to work.

 

When the line froze it probley cracked it

 

..."air operated internals"....so the air is going somewhere other than to brakes and suspension? I wonder if there isn't a bad valve in those internals somewhere.

 

Air internals..... just put the power service air line treatment to it..... summer is almost here.



How old is the trailer ?

Does it hold air while loading and unloading...?

Is there any product in the air internal lines....?

 

are you certain there is not an auxiliary tank the pressure gauge reads from? on my trailers with air ride and kicker roll, all the bags run from an auxiliary tank. that tank feeds from one of the two main air tanks and is regulated. the main tanks have to reach 90 psi before the regulator will allow air to pass to the auxiliary tank. this is to prevent a blown air bag from depleting air from the main system and causing your maxis to apply. if so equipped, that regulator valve may be bad, not allowing air to flow to the auxiliary tank. may not be a freezing issue at all.

the regulator looks like this

 

In thinking what Troy is thinking. Maybe there are two tanks and the check valve that lets air from one to the other is NFG?