KW T800 Suspension Leveling

Took some pics of how I did mine. I am not sure how other trucks with dual levers are setup but this is what I came up with. They have worked very well for 3 years now.

The rear crossmember was in the perfect spot to mount the leveling and dump valves.



Welded a piece of angle iron to the air bag pedestal to mount the linkages on. (no I did not realise I had a leaking wheel seal till I just looked at these pics, trucks been sitting since Dec.)



I put in two gauges, one to monitor each side. They come in handy to tell if the valves are working or if there is a problem somewhere.



...and two switch to be able to dump each side individually as I run on steep hills and with the changing terrain it is nice to be able to manully dump some air quick instead of waiting for the valve to do it



I used:
-2 Haldex 90054007 leveling valves
-2 Haldex 90554615 dump valves (you may only need one if you don't want to deal with the two switches)
-2 scrap yard KW air gauges
-2 scrap yard air switches
- lot and lots of air line and fittings

I believe the AG 100 is supposed to be set at 8" from the pedestal to the bottom of the frame rail. I forgot to measure mine, KW can tell you.

This Air Leaf was alot trickier to do because of the longer suspension travel.

 

If it is dumping air on one side and that guage reads lower pressure, you most likely have a ride height set up issue. The higher set valve is lifting the truck frame more and causing the other height valve to exhaust air. Get on a level ground and set both height valves equal. Might take some time to get it right. The adjustment nut is very sensitive to up and down. We have Neway 252 in all our straight Trucks with dual height valves, they are a pain to keep perfect level. Make sure linkage doesn't bind and the adjust nut is tight after. Good luck!

 

Ya, incorrectly set linkages would be my guess. The heavier side is doing all the lifting. Adjust the heavier side down, or lighter side up. The 8 bag is a breese to set up and adjust compared to a 4 bag with springs. Park it in that nice level shop and chock a wheel, no parking brake while you adjust the height.

 

Did you try the instant response? I though about those originally but figured with the rough terrain they would constantly be dumping or adding air.

Pray for rain!!!