This may be useful information regarding the air dryer situation which led to us being stuck in Westfield, Massachusetts several days ago. Our purge valve had become stuck and we lost our air pressure.
The tech at Monaco was a good one. He use to repair air dryers at Monaco and said by the time the purge valve gets stuck, there are so many contaminants inside, it makes a good case for replacement. Our coach is a 1998 and even though I gave him the coach number, he said when Monaco went out of biz, they didn't pass all the coach info on to the new owners, and especially for coaches made before 2000, they have litle info on what's in the coach as far as parts and accessories, so this was disappointing. I told him the air dryer was a Midland Grau and he suggested trying to reach the company. I found that Midland Grau, became Midland Haldex, and is now just Haldex and then called their tech people. They were great. Once he knew I had a 12 volt system, he knew I had to have one of two products, which are both being made. I need to find out if my Monaco Cummins has a holset application, which requires a different part number dryer but he didn't think I had that application. Reman air dryers are available for both. If your Cummins had a holset application, the correct air dryer part number he gave me is DA33200X and without holset application, the part number is DA33100X. He suggested ordering it through the desk of Fleetpride or NapaTruckPro, and save a little money on the deal. Hope this helps with other Monaco owners. Monaco techs suggested I get a brake inspection when returning for the two rear tires, as those are the ones the parking brake controls. Thanks again for all the help and suggestions from some very smart people on this forum.
