Originally Posted by Scottiac

Edit: Just saw Midiwalls solution... much nicer!!!!!!

Originally Posted by midiwall

Electrically, you can certainly do it with only a switch triggering a relay that's switching power to the compressor.

On the air side, you have some more purchases to make.. .

Given that you're in Humidville USA, I' REALLY suggest running a watertrap. If you don't, you're basically pumping water into your tires. You can get them for under $20 (don't forget the mounting ring!) at a Home Depot or Lowe's.

You'll also want a good air gauge, a "_OPEN_ locking tire chuck" (*see below), and pick up a couple of those coiled yellow air hoses when you get your watertrap. You'll need miscellaneous air fittings and the quick disconnects for the ends as well.

And, you may want an easy-to-get-to accessory tap mounted on the bumper for the air. That's generally just a piece of 1/4" steel bent up and drilled to accept a quick disconnect fitting. That'll stay there all the time, then when you need air, flip the switch in the cab, and plug into the fitting.

Now, to make it easier on you... You can run a manifold on the compressor, then attach a pressure switch into one port and your air hose into another. The pressure switch gets wired such that it kills the power to the compressor when the pressure comes up to 120psi or so. With the quick disco on the bumper, that will let you just plug in to the disco with your air line and the compressor will start. When you disconnect the line, the disco fitting will block the airflow, the pressure will come up, trigger the pressure switch and the compressor will shut down.


* - you need the open chuck in order to protect the compressor. If you run a closed chuck (i.e., no air flow unless it's on the tire) then the compressor will keep running and something going to give. If you run a pressure switch, then you can run an closed chuck.


Have fun!