05-14-2018, 10:18 AM
The 77 coach had no dryer when I bought the coach. Following a scary episode on slippery roads with suspected ice in the air brake system I went with the AD-9 for reasons too distant to remember.
When I acquired Forest's 93 coach I found water in the service tank downstream of the Brakemaster dryer, ergo the switch to the proven, by my personal experience, AD-9. I have since found no moisture in the tanks. Yes, the AD-9 does require an element change every few years, but at about $65 it's cheap compared to what can happen with iced brakes.
When I acquired Forest's 93 coach I found water in the service tank downstream of the Brakemaster dryer, ergo the switch to the proven, by my personal experience, AD-9. I have since found no moisture in the tanks. Yes, the AD-9 does require an element change every few years, but at about $65 it's cheap compared to what can happen with iced brakes.
Jon Kabbe
1993 coach 337 with Civic towed