Is there continuous air leak from air dryer purge valve?
After the system purges, there is a slow but steady air leak from the purge valve. Shut the truck off and it still leaks. It will loose down to 60 psi in about 45 minutes, and is completly depleted in about 1.5 hours. I change the purge valve, but that didn’t help. Can anyone give me some ideas on a remedy for this? I sure would appreciate it.
Why does my air dryer Purg every 30 seconds?
Your intuition is probably right. I think it would be the unloaders. When the system reaches 120psi the governor allows system air to the air dryer to signal the purge and allows air to the unloaders. The unloaders will just hold the check valves off their seat in the compressor head to stop the air from being pushed out of the compressor.
How often does my Cummins 8.3 dryer Purg?
I have a 1997 cummins 8.3 with a holset compressor and AD-9 dryer. The dryer is purging about every 30-45 seconds. It does this whether I am parked or driving. I know I do not have any air leaks as I only lose about 5 PSI over 24 hours. -The pressure in the tanks seem to stay steady at about 120psi.
How often does a 2012 Cascadia dryer leak air?
I been driving a 2012 Cascadia for about 3 months now, and it leaks air out a thin air line (pressure release valve?) under the motor every 10 to 15 seconds. Wasn’t doing it until a few days ago.
Why does my Meritor air dryer keep leaking air?
Here’s what I’ve found: Starting at zero psi, the system builds pressure fine and fairly quickly. The dryer cycles as it should per Meritor manual. After the system purges, there is a slow but steady air leak from the purge valve. Shut the truck off and it still leaks.
Why does my clothes dryer have a leak?
This can in turn lead to moisture accumulating in the structure, and also to mildew, mold, and dryer vent leaks. The materials used for a dryer’s venting ducting has an effect on how effective the venting is, as certain materials can cause more moisture to be formed inside than others.
How big is the check valve in my air dryer?
There are three lines to the dryer, the largest from the compressor to the dryer, the next from the dryer to the wet tank, them a small line from the dryer to I think the governor.This small line looks to be 3/8″.Which one will have the check valve. The Meritor parts list shows a check valve in the dryer on the outlet port.