[Dhead]

The center post is threaded, see my attached photos.  Valid makes a tool VTL01T001 that slides over the center post and into the two small holes to unscrew it.  It's on page 65 of the manual.  I made a similar tool, I'll see if I have a photo of it.

Thanks Jim, I will call Valid on Monday and see if I can get the tool. Newell sent me the wrong air bags. No way I could see these bags could be used on an 09 Newell.

This weekend I yanked out all 8Ds as they were 7 years old. Amazon has a nice little hydraulic motorcycle lift that is perfect to remove and replace 8Ds. Lowest is about 8", but it rises to 33". I wouldn't use it for a motorcycle , too small...
After getting the coach to start and air up, I could hear the left raise solenoid click, but I still cant get any air into the bags (can't hear any air leaking either...).