How often should you replace an air dryer?
For the standard trucking level which is typically pick up/delivery operations, Bendix suggests you replace your air dryer every 200,000 miles, or 24 months. In this application, you should also be checking for moisture in the dryer every 25,000 miles, or three months.
How does a purge valve work on a air dryer?
The purge cycle of the air dryer begins when the governor causes the compressor to unload (stop compressing air). The purge valve will not close until air brake system pressure is reduced and the governor signals the compressor to begin compressing air again.
How do you get oil out of an air compressor tank?
Drain the Compressor Tank
- Place your air compressor in the normal position.
- Grip the ring on the compressor tank’s drain and turn it counter-clockwise.
- Make sure to open the drain valve all the way.
- Void the entire tank of the water, sludge, oil or even rust.
- Leave the valve open for a little help drying it out.
What kind of oil should I use in my air compressor?
The Clear Choice for Lubricated Compressors In general, manufacturers today recommend using either a 20 or 30 weight synthetic lubricant — rather than a mineral oil — to get the best results out of your industrial compressed air system.
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 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.
How does an air dryer drain service reservoir work?
The oil droplets and the water collected are automatically purged when the governor reaches its “cut-out” setting. For vehicles with accessories that are sensitive to small amounts of oil, we recommended installation of a Bendix®PuraGuard®system filter, designed to minimize the amount of oil present. Air Dryer Reservoir Drain Service Reservoir
How to troubleshoot an air dryer air compressor?
Check the air governor sensing line and fittings for leaks. Leaks in this line will let the pressure bleed off and cause the compressor to cycle. If a leak is found fix or replace the line. If no problems are found, check the air dryer for correct operation. Rebuild or replace it if any problems are found.