The digital garage of my 1998 Jeep Wrangler.

On-Board Air

Engine Driven On Board Air from Kilby Enterprises

April, 2005

I can't tell you how to plumb your rig. You have to figure that out for yourself. But I can tell you some of the things I learned.

Somewhere in the system there should be a pressure release valve. If you system malfunctions in such a way that the compressor does not shut off you need the pressure release valve to allow excess pressure to blow off. Mine is on the tank. You don't want it too close to the pump as the pulses from the pump might set it off prematurely.

The air will be a bit cooler if you send it to the tank before the quick disconnects. Its very tempting to run from the compressor to a front disconnect without going to the tank first. You can do it, and it will save a few feet of air hose, but you'll be getting hotter air.

If you want to run air lockers you need to add a pressure regulator. The pressure switch will not control the pressure precise enough for lockers like ARBs.

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