The compressor currently installed is designed to be fitted onto vehicles to inflate air shocks. It is a 12v system and wires directly to the vehicles electrical system. I have equipped the system with a 2.5 gal air tank. The current compressor is a light-duty compressor that is getting removed within the next day or so.
I have a higher capacity compressor to replace it. The original is only rated at 20% duty cycle at, I think, 50psi working pressure. This is not very good for inflating tires. It is enough for inflating kites, but that is not all I use it for.
I have a replacement (pictured below) that I will be installing which is 100% duty cycle at 100psi. This should be enough to handle reinflating my tires as well as my kites - and anyone else's on the beach.
Here is the new compressor...
Here are some shots of the install under the truck.
You can see a pressure valve (two wires going in) that automatically turns the compressor on when the tank drops to 90psi. It turns off when the pressure reaches 120psi and maintians that pressure. There are no manual switches in the cab of the truck to operate.
The tank is mounted just outside of the frame out of the way.
Air source at rear of truck.