I got my CO2 on board air set up. For the switch I placed it in the center dash. The switch is close but not quite right to fit in the existing holes available so I used a file to open it up just a little bit and made some small spacers out of aluminum to space the switch out. I JB welded the spacers on and spread some more JB weld in other spots on the center dash that had or were starting to crack. I did a light sanding and painted it with hammer black like I did the instrument panel and additional gauge pod.
The top of the rocker hit the panel even with my spacers so I shaved the top down to get full activation when flipping the switch on. Wiring was simple and I tagged into the cigarette lighter's power, instrument lighting and ground.
I then ran one power wire from the switch back to the solenoid and then grounded the solenoid to the frame back where I mounted it. The instructions recommended placing the solenoid close to the air supply. Since I wasn't going to store anything on the passenger rear side due to the filler neck being back there and I'm not putting an access door on that panel that is the side I will build a mount for the tank and store it on trips. I also ran the air line from the locker on the passenger side frame rail and through a hole I drilled in the bottom of this section.
I tried ordering an adjustable regulator so I can run 100 psi for the locker and then bump up to 150 psi to fill the tires. I had a hard time finding one locally that would work for what I wanted and with a sand dune trip at the end of the week I was finishing this off I found a welding store that had this 100 psi fixed regulator. It won't fill the tires as fast but it will still be much faster than my little compressor I've been using.
Then to get from the regulator to the solenoid I stared at the different fittings at Home Depot and came up with these. The one on the left gets me from a 1/4" line to a quick disconnect that I'll plug into the regulator. The one on the right gets me from the solenoid to a 1/4" line
Here's all the air side of the system. The blue air hose is 25' and was on sale; I'll use this for filling up the tires.
I tested the lines and found a fitting loose that I hadn't tightened all the way.
I routed the line through a hole I drilled and put the panel back on. I protected the hole with a grommet. I used a magnet that I stuck on the pillar that I stick the air line to that keeps it out of the way. I made a make-shift mount out of wood for the tank to get me by for that weekend but plan to make something a little more permanent I can bolt to the panel for regular use.
It worked great on the trip and I found that after I shut the tank valve off I still have enough in the line to activate the locker two more times. I don't see the locker running the tank down, it'll be filling tires that will use it up.
While I was looking for regulators I had one on order that had a 4 week back order. I picked up that fixed regulator and planned to cancel the order but the next day I got an email notification that my order was shipped ahead of time. It came the week after and now I have two options for the tank. I will want to build some kind of cage/protective bumper that will help keep the gauges safe from a tip over or packing. It seemed to be a challenge getting a CO2 regulator with higher flow that had a psi gauge for the outlet so I think I'll keep this one. I may take off the tank pressure gauge and just plug it since weighing the tank will be a better way to know how much I have left. I only plan to keep it in the truck for trips. I'm keeping my little compressor in the truck as a back up. I plan to put some reminder labels for regulator setting so I don't blow the seals out of my locker with too much psi. I may set up a pop off valve on that solenoid line just as a safety measure.