Thread: Removing load leveller

feel free to show your setups!! i wouldnt mind seeing it for myself!

Ok here are a couple of pics of my unit on the bench and installed. This was on the day and since then a heat shield has been added.





I have only had it in the car for a week or so. it has required a major revision of my onboard air system. The air system was pressure limited via an ARB pressure switch that did not give me enough air pressure, so........I converted an old compressor cutout switch and set it to 150 psi, that is enough pressure to lift the Rangie 100mm with a Fridge and 3 boxes of gear onboard. The bag is not even at it's limits at this setting. So an air tank of higher pressure rating is on it's way
The clearance on the A arm is tight at about 3 mm but more importantly it has not rubbed. If a problem develops in this area I will relieve a spare A arm to give more room. It was decided that heat from the exhaust would become an issue so a heat shield has been added that is highly effective.
The end game in all of this is to somehow get hold of some longer travel shocks, be able to use all of the travel and have a load compensator that is completely adjustable for all situations.

Looks like the same bag that I tried this with, very tight clearance of the A-frame, pity it's not wide enough to get the next size bag in as then the pressure required would be markedly reduced. I was not able to get enough pressure into it to do what I wanted, did not think of changing the cutout pressure on the ARB compressor, think i would want to investigate it's limits before doing that. Adjustable load compensation plus articulation- very nice.

Yeah the pressure does seem high, but it is well within the bag limits. I'm currently looking at moving the bottom mount a little more to the vertical as a way to give it more clearance. I'm surprised that you couldn't get high enough pressure as I could get 85 mm lift with just 90 psi.

I think my airbag might even be a shade smaller than yours- yours looks like a RR EAS bag? It was a while ago that I was mucking about with this but I didn't think anything bigger would fit between the A-frame arms, obviously a small difference in diameter makes a big difference in cross-sectional area thus needs a lot less pressure for the same result. Unfortunately the further forward you move the bottom of the airbag, the greater the mechanical disadvantage as the axle gets greater leverage over the airbag. I wonder how much body lift you would need to get a bellows type bag right on top of the diff? If I had a tray conversion that's what I'd be doing.
I was also thinking that an air-over-hydraulic arrangement would do the job, a large airbag driving a small-diameter hydraulic ram connected like a master cylinder to a larger ram at the load-leveller location. would be fun to experiment with but trial and error with this sort of thing gets expensive.

Now I think I have REALLY hijacked this thread!

As you say Air over hydraulic would be fun to experiment with, but that's very close to what a Boge is anyway. Not to forget the expense and who has that sort of stuff lying around to tinker wth anyway?
The bag is D2 rear and is literally the biggest thing that will fit.
The whole trayback thing is something Stirling and I have talked of for his Ute project. It will be so light that any airbag will work.
Yeah I guess I had better apologise for the hijack as well