Moisture when purging

[dozenlemons]

So on this T600, the air dryer is spewing a lot of moisture when purging. No signs of coolant or oil, just lots of water on ground. Removed the line on the compressor side and put a paper in front of the compressor air output vent, no moisture there. What could be the problem?

 

[ironpony]

So on this T600, the air dryer is spewing a lot of moisture when purging. No signs of coolant or oil, just lots of water on ground. Removed the line on the compressor side and put a paper in front of the compressor air output vent, no moisture there. What could be the problem?

Residual moisture in the system. Do you purge your air tanks daily? You probably should to remove the moisture in the air cooling after compression, and I'll bet the filter element in your air drier is done in too.

Its been mentioned here before that installing a new air drier can be done at nearly the same price as rebuilding the one you have now. You might look into that.

 

[mndriver]

When was the last time you actually serviced the air dryer?

 

[dozenlemons]

Just replaced the dryer filter 2 months back, never serviced, and tank are usually drained once every week, no moisture when draining the tanks. Dryer filter was replaced when the problem started. As far as my lame brain understands a little bit of moisture when purging is fine but for now it is a lot. So I was thinking somehow more moisture is being introduced before air reaches the dryer and poor dryer is expelling all the moisture. Is it possible?

PS: Last winter the steel braided line running from compressor to dryer would freeze up a lot so used airline antifreeze. Nothing else would freeze just the line.

 

[Mike]

If no coolant is disappearing, hard to say what this is other than it’s simply not doing its job. How hard and expensive to replace the entire dryer assembly?

 

[dozenlemons]

I'd reckon not expensive but then again if the dryer is removing moisture from air and purging it, the dryer is working. But I have been wrong before like 9 outta 10 times. So the question is should I start with replacing the dryer or the compressor??

 

[gearjammer]

replace the dryer first

 

[dozenlemons]

Gotcha, will do that..

 

[Hammer166]

Replace the dryer? What's the matter with y'all? That dryer isn't making that moisture, and if there's no moisture in tanks it's doing its job!

How many miles on compressor?

 

[dozenlemons]

Approx 1.2 million

 

[Hammer166]

Approx 1.2 million

Are you losing any coolant? Compressors are water cooled.

 

[dozenlemons]

Nope, it is just water..

 

[Hammer166]

Nope, it is just water..

That water is coming from somewhere. You running where it's very humid?

 

[dozenlemons]

No mostly local runs, save for a trip to montreal sometimes..mind you Im canadian and winter is coming..

 

[Hammer166]

No mostly local runs, save for a trip to montreal sometimes..mind you Im canadian and winter is coming..

I hear you on winter. As long as the wet tank is dry, the dryer is doing its thing. But if your not using coolant, I'm not sure where else the water is coming from. Compressor inlet, before or after turbo?

 

[dozenlemons]

That is what has me stumped..I was thinking it is the compressor and somehow outside air is mixing with compressed air leading to moisture because the moisture quantity being purged varies.

 

[tommyh]

I had a lot of water in mine recently.I had to replace my air dryer.Then a month later,my compressor went out and I replaced that.Now it is fine.I am not sure which one was doing the damage.I suspect the compressor
My air system was screwed up during all of this.I was getting air to the dryer and I replaced the dryer,only to have the compressor go bad.Now I have a spare dryer

 

[dozenlemons]

Im just gonna go ahead and replace both just for the sake of it.

 

[mndriver]

I would have started with downloading the troubleshooting chart from the air compressor or system manufacturer that I have

 

[r3gulator3]

Well if you didn’t replace the whole dryer already. Check the fuse for the heating element if that’s good verify power and ground to the element. If that’s good replace the element and go from there.