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Question Jon...Is that ball valve actually under the coach near the drive axle?
1993 Newell (316) 45' 8V92,towing an Imperial open trailer or RnR custom built enclosed trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '23 Grand Cherokee.
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The valve is mounted on a steel channel between the frame rails just ahead of the axle. There are two valves there. One shuts off the air to the suspension system and the other shuts off the air to all other non-brake system uses. On my coach the "other" uses are supplies from two distribution manifolds, one up front and one in the rear of the coach. I believe there may be 1-2 "other" uses not not supplied by the manifolds but I have yet to locate them. I don't even know why I think they exist
Jon Kabbe
1993 coach 337 with Civic towed