A few more details on the air system....
Here is my small aluminum tank that I installed under the rear of the body. It holds 1/2-3/4 a gallon of air. I have it plumbed so it sees the full pressure from the compressor. The ARB pressure control switch runs the air system up to 150psi before shutting off. It turns back on at 135psi.
I had to regulate down the pressure for the Ox-locker down to 85psi. The regulator is hidden next to the center console. After the regulator I converted to 1/4" air brake line with push to connect fittings. The longest run of line is maybe 4-5 feet to the locker....probably more like 4. The air tank plumbing also uses air brake line and push-lock fittings for easy field repair. I have a small coil of extra air brake line that should let me rebuild all the flexible lines if needed.
I got the compressor wired up tonight. I deleted all the ARB control wiring for the most part. Once you dissect the wiring you only need ONE wire on the control side as far as I can tell to activate the compressor. I used a on-off toggle with one side wired into an switched ignition wire and the other side going to the purple wire on the compressor control plug. By using a switched ignition wire you can't have the compressor turn on from a small air leak unless the engine is running if you leave the switch on. I basically plan to have the compressor off probably 99% of the time anyways since the only reason I NEED to have it on is for the rear locker or airing up the tires.
The control switch for the locker ( a pneumatic mechanical unit ) is hidden on the front corner of the center console. This shortened up the air tubing runs and hid and protected the switch from getting bumped or activated accidentally if it was mounted on the dash. I can also get at the switch without having to lean forward which is nice....
Once the compressor was wired I gave everything a test. The tank seemed to fill pretty fast. I was messing with the pressure regulator getting it all adjusted and probably turned the locker on-off 20+ times and the compressor never turned on. The locker seems to use a very small volume of air. It doesn't make the same sound as an ARB locker, but if you know what to listen to you can hear it release with a little PPPPFFFTTTT sound.
The locker seemed to function just fine. When it is locked you can tell it acts like a spool. The turning radius is GREATLY reduced. The funny thing is that I don't get any reduction in turning diameter with the front automatic locker doing its thing unless the rear is locked. Personally I really like the front automatic locker and rear selectable setup. It seems backwards from what most people run, but it works really well for me!
I also built the air hose for filling the tires. It reaches the passenger front tire easily walking around the vehicle either way. I could probably shorten the hose up about 3' if I really wanted. I put another quick connect on the end of the hose to allow for some future air tool expansion perhaps. If I don't end up using that feature much I might just stick the clip on chuck on the end of the hose and call it good to eliminate some extra fittings. The hose fits in the tool box though and that is what I REALLY wanted. The hose is like 2 feet of less from the quick connect and can live in the top of the box for very easy access.
And no, I haven't done any tire fill up tests yet....
Maybe a few sunflower seeds.
