Airlift 5000 airbags and WDH
Wife and I are thinking of going back to a travel trailer from a truck camper and had some concerns with airbags combined with WDH. We had a 2010 prowler 33 foot TT a couple years ago and when we were...
Forum Discussion
Ron Gratz wrote:
...It sounds like you'll need to try this yourself to believe, but for the initial PSI put into the bags, I doubt most are getting any lift. In my case, I dont get lift while unloaded until I go over the minimum of 5psi. I found with WDH attached, I can easily add 10psi and not induce any extra lift. Again, the air bags with WDH are just adding spring rate at this point which translates into reduced suspension travel.According to Firestone, "As a general rule, the air helper springs will support approximately 50 lbs. of load for each psi of inflation pressure (per pair)".
That suggests that, if you add and additional 10psi to each bag, you will add an additional approximately 500# of upward force against the chassis.
Are you saying this does not cause the rear of the TV to raise?
Ron
5 psi (250# upforce) is the baseline, zero lift with no WDH. Then with the WDH he adds another 5 psi (another 250#) before seeing any lift.
That's just an additional 250# upforce on the rear axle. With all the WDH upforce, I wouldn't expect much noticeable lift on a heavy TV handling a heavy tongue weight.
The approach seems reasonable to me. Adjust the WDH with the air bags un-inflated (or just inflated so no rear lift). To improve handling, add air until additional rear lift just barely noticeable. No?
