What is this? and why does it leak air.....

[FMJ]

This in one of the 3 M109A3's I recovered yesterday, http://steelsoldiers.com/index.php?name=PNphpBB2&file=viewtopic&t=18528 ,only one truck has this, or its mounted somewhere else in the others....it leaks air as soon as you start the truck, I'm thinking of pulling it out and seeing why....it looks to be a pressure switch for the low air buzzer, and the low air light (missing), but it leaks air out of the left side boss with the small hole in the picture.

 

[FMJ]

Ok, fixed the leak, I tightened the silver 1 3/8" fitting that screws into the bottom of the pressure switch. This is for the low air buzzer and the low air warning light. On the other trucks this switch is mounted directly to a manifold further up under the dash.

 

[Djfreema]

That looks like the same valve I have under the dash for the air o matic steering. I think its the regulator that shuts the air off to the steering if there is less than 60lbs?

 

[FMJ]

I wish I had air assist.....lol, the lines off the bottom go to the low air buzzer, and the low air light.