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LX and LXI (Unique Issues) If you have a unique issue with your LX or LXI model coach and it can't be answered in one of the other forums here, then this is where you can list it, WITH THE EXCEPTION OF THOSE ISSUES INVOLVED WITH ANY LAWSUIT.....list your LX and LXI Parts here too.

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  #31  
Old 10-17-2015
drdonny drdonny is offline
Donny Goodwin
 
Join Date: Dec 2007
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I had installed a separate AC pump I used rather than the Thomas Pump. It would be easily seen in the bay just in front of where Thomas Pump
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2012 Newmar King Aire former 2003 LXI SS
Montgomery, AL
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  #32  
Old 10-17-2015
rrueckwald rrueckwald is offline
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Thomas 12vdc compressor on the right, Gast continuous duty 110vac compressor on the left under the box in the next bay.

The accessories system (aux tank) powers the driver’s air seat, the step, the step cover, (formerly the waste valves before I moved them to the toilet/seal tank), the air horn, and a feed to the microphor tank which powers the slide seal, toilet, and in my bus the dump valves. When the coach is connected to shore power, an 110vac compressor keeps the entire air system up, and the accessories tank between 80 psi and 100 psi nominal (but 70 to 90 psi on the microphor tank, probably due to cracking pressure of the check valve). It is a Gast model 3HBB-10-M300X, formerly available from Grainger for over $600, but now replaced by another (Search Gast 3HBB). When the pressure drops, the pressure valve switches on the compressor. The pressure switch is a Grainger p/n 3AFU5 by Condor. There is a switch on the dash to activate this compressor.

The Thomas compressor pressurizes the microphor tank only and is set to turn on at 60 psi and off at 80 psi nominal, which allows the 110vac compressor to take precedence if powered. By being set lower, The Thomas takes over in a boondocking situation. The Thomas compressor is available at Grainger, but 20% less at zorotool.com. Mfr p/n 405ADC38/12. Zoro p/n G0626832 for $246.99 in April, 2013. A switch should be installed wherever convenient.

There is a better compressor for 12vdc available and used by several BBers It is the chrome unit in the second picture. It is a VIAIR 350C compressor, model 35030 and 150 psi, and is less expensive I hear. Search for the best price.
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St. Joseph, MI
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  #33  
Old 10-18-2015
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BigR317 BigR317 is offline
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I was waiting for you to jump in Ron I knew you would know how this was set up. I will do some research on the 110 compressor mine is in need of a rebuild or replacement.
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Eau Claire, Wisconsin
715-577-1687
ronnie.books@yahoo.com
2000 Liberty H3-45 Prevost

1999 Lxi 43 D/S (Sold)
1985 PT 36' "The Drifter" (Sold)
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  #34  
Old 10-18-2015
rrueckwald rrueckwald is offline
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Hu, Ron,

I just rebuilt my Gast compressor. It is easy enough to do, but YOU MUST check the piston at TDC with a straightedge or there will be interference and short life. (The cylinders have to be tightened down at the right place.) They have a video on the Gast website that is well worth watching before you do the overhaul; kind of hard to find, but it is there.
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  #35  
Old 10-21-2015
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bruce1995bmc bruce1995bmc is offline
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Here are the photos of my air compressors. When I turn on the switch on the dash, the lower compressor runs. I ran it for almost an hour tonight and pressure never got higher than 60# on the dash suspension gauge. I did hear a small leak in the horn plumbing that I was able to correct. The toilet flapper worked, but no water during the flush. So I got a hose and filled the toilet and when I flushed it, air pressure seemed to want to escape out of the black tank as the water went down it splashed all over the bathroom. Thankfully it was only water!!!

I have yet to find the switch for the upper compressor.
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2003 43' LXI Front slide
1995 BMC 37' SOLD
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  #36  
Old 10-21-2015
rrueckwald rrueckwald is offline
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Quote:
Originally Posted by bruce1995bmc View Post
Here are the photos of my air compressors. When I turn on the switch on the dash, the lower compressor runs. I ran it for almost an hour tonight and pressure never got higher than 60# on the dash suspension gauge. I did hear a small leak in the horn plumbing that I was able to correct. The toilet flapper worked, but no water during the flush. So I got a hose and filled the toilet and when I flushed it, air pressure seemed to want to escape out of the black tank as the water went down it splashed all over the bathroom. Thankfully it was only water!!!

I have yet to find the switch for the upper compressor.
If you are talking about a switch for the 12vdc compressor, I have never seen one factory, only owner installed.
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  #37  
Old 10-22-2015
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bruce1995bmc bruce1995bmc is offline
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Well, tonight more progress has been made. We traced the wiring to the 12v compressor and it turned up under the bathroom vanity in the form of this added on switch. (pic attached)

God bless Bob and Judy, but it would have been nice to have been told about this switch and what it does. Well we flipped the switch tonight and wallah, the compressor started, ran for about 5 minutes and shut off automatically. The toilet flushed with water, and I heard the slide seal inflate as well.

Now onto the bigger fish I have to fry. I'm going to work on a couple of penetrations through the wall. One for the engine exhaust and one for the Aqua-Hot and Generator exhaust. I'll post up some pics when I get them done.

Thanks for everyone's assistance.
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1995 BMC 37' SOLD

Last edited by bruce1995bmc; 10-22-2015 at 11:41 PM.
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  #38  
Old 10-23-2015
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BigR317 BigR317 is offline
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That's good news Bruce. It will take awhile to learn your coach but it will be worth it. It's a great looking coach. Feel free to call any time.
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Ron Books
Eau Claire, Wisconsin
715-577-1687
ronnie.books@yahoo.com
2000 Liberty H3-45 Prevost

1999 Lxi 43 D/S (Sold)
1985 PT 36' "The Drifter" (Sold)
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  #39  
Old 10-23-2015
rrueckwald rrueckwald is offline
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We should all take a hint that added switches should be labelled. How many times do we run into switches with unknown use? Lots. Exasperating to the new owner.
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  #40  
Old 10-23-2015
drdonny drdonny is offline
Donny Goodwin
 
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May have some other information that might help you. Call me tomorrow after 3:00
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