i need help.... updated with pics

Edited: 2/14/2008 5:14:50 PM by low mazda

Edited: 2/14/2008 5:14:37 PM by low mazda

I need Help wiring this thing. I know one of the big conn. is for my battery and the other is for the comp. and i know the two small ones are for a ground and my pressure switch, but does it matter which big one goes to the battery and comp, and which small one goes to the ground and pressure switch?


I am trying to use this as my relay for my compressor. I just got my truck running after years of it being worked on, and this is the last piece of the puzzle..







I found this on their website, so i guess my question, would be how can I make this work for a compressor?

Not sure but maybe their website has diagrams. Just a thought of where I would look. Later

If it doesn't say, it doesn't matter. And on the ones that say anything I have only seen it say BAT. on one of the large studs and nothing else.

i can't find their website, and I am sure someone here must know.

The yellow wire would be the PS, and the second battery would be the compressor.

You hook up your power wire to either one of the big studs and hook your compressors to the other big stud. As for the little studs, ground one of them(either one) and then the other one you put power to through a switch(or in your case the pressure switch). It doesn't matter which ones go on what post long as you use the large ones for your battery and compressors and the small ones for the ground and switched power. I wire these things all the time.

thats exactly whati sent him on myspace lol.

ok, well where would the other prong on the pressure switch get wired to?

One prong on the pressure switch goes to the relay, and one goes to a 12V source. I like to wire mine to Ignition ON so its only hot when the truck is running, and I also put a toggle switch in lien in case I want to shut it off. Like when you get pulled over.

ok, well i tried that so i assume my pressure switch is fucked..