Re: Air Gauge Question on my 92 U300 Reply #25 – December 05, 2014, 01:14:41 pm Yup I have run every test I could do, the big thing as Brett pointed out was the amount of water or in this case ice in my wet tank When i found the remote valve it was to late and was already froze. Just a lesson learned make sure you drain or at least check those tanks. Quote Selected
Re: Air Gauge Question on my 92 U300 Reply #26 – June 20, 2016, 04:33:34 pm Quote from: Andy 2 – December 04, 2014, 10:14:33 pmYes they are that's why owning one of these take attention to detail. I new I had a problem when it would not purge. I had no idea what had been done to the Coach and it sat in a shop for 3 years while Sam was sick. I have been going over all the systems the last couple of months to make sure. After driving in the oil patch and over the road for all these years i like to think i learned something. At least I can do the work myself and save the labor. Iam going to replace the AD4 with an AD 9 this week end. Thanks.Andy,Did you upgrade to the AD-9 and was the mounting the same? I am in the process of doing the same upgrade and saw where the AD-9 has a turbo cutoff piston which prevents turbo boost/hp loss during the purge process. This would be a significant difference and worth the cost as opposed to rebuilding the the AD-4.Thanks,Jerry Quote Selected
Re: Air Gauge Question on my 92 U300 Reply #27 – June 20, 2016, 04:50:22 pm Yes Jerry I did replace the AD 4 with a 9 and it bolted right up been working great ever since. The hardest part was putting it up there in a cramped place. Quote Selected 1 Likes
Re: Air Gauge Question on my 92 U300 Reply #28 – June 20, 2016, 05:25:41 pm AndyI just had mine changed to the AD-9. Shop said they had to rewire the heater wiring for a 2 wire connection. Did you run into that? Mine was original I think - 25 years old. The labor on mine was $500. Quote Selected
Re: Air Gauge Question on my 92 U300 Reply #29 – June 20, 2016, 05:29:40 pm Yes Peter I had to do the same thing. Quote Selected
Re: Air Gauge Question on my 92 U300 Reply #30 – June 21, 2016, 08:46:24 am We did similar a year and a half ago when the compressor died. The mobile mechanics did most of the work, but there was one connection that had all three of us on it before it finally was willing to come apart. After all was back together they discovered that the wires had been changed since 1993, so we had to make a quick trip to a truck salvage yard for a new pigtail. Quote Selected
Re: Air Gauge Question on my 92 U300 Reply #31 – June 21, 2016, 09:00:57 am The new generation pigtail has a separate PN from Bendix and can easily be purchased separately. Easy splice (butt connectors) to OE coach wiring. It "powers" the dryer heater. Quote Selected
Topic: Air Gauge Question on my 92 U300