BAC Forum

General Boards => Technical Support => Topic started by: Bill Lampkin on March 31, 2023, 06:23:58 PM

Title: AIR BAG CHECK VALVES
Post by: Bill Lampkin on March 31, 2023, 06:23:58 PM

2005 beaver patriot thunder 40' w/ tag; time for annual service. Right rear of coach settles to bump stops after sitting for a week. Other 3 corners of coach maintain ride height. Does each airbag have a check valve inline or is there a solenoid 6 pack in the right rear that might be leaking?

Title: Re: AIR BAG CHECK VALVES
Post by: Carl Boger on April 01, 2023, 01:00:54 AM

Bill,

I don't believe that there are any check valves in the air lines to the air bags.  It is more likely a slow air leak in one of the fittings for the bag that is leaking down.  I would spray soapy water at that bag and fitting, and then follow the air line to every fitting on that line back to the air pump.

Someone with more experience will probably chime in and may have better suggestions.  Hopefully this will help you some.

Title: Re: AIR BAG CHECK VALVES
Post by: Bill Lampkin on April 01, 2023, 02:20:35 AM

I'll have the mechanic take a look; Too old to crawl under there myself!
Thanks Carl.

Title: Re: AIR BAG CHECK VALVES
Post by: Eric Maclean Co-Admin on April 01, 2023, 03:31:17 AM

Bill
The rear of the coach has two ride height control valves one for each side.
I'd start as  Carl said by coing a soap test on all the connections for the side that is leaking down
Don't for get to check the ride height valve as they do ware and leak with age and corrosion.  if the coach has HWH automatic air leveling check the six pack manifold for leaks aswell ( the O rings are known to harden up and leak ) and the ride height is control via the ride height valves through the six pack valve.

Hope this helps
Eric