Automatic tire inflation systems

I always heard go things about them.
Then I went to the oil fields and realized its NO GOOD for that type of work.
Mud gets caked in between the duals and will rip your hoses off. So you have two flats at once.

OTR application: sounds good and makes a lot of sense.

 

Turn off the air the night before service or as far in advance as you can before goes from the yard to the shop. If the unit comes in and right back out you have to hope the driver will tell you that the light has been on.

 

That's not including install, we install them ourselves.

 

Not usually an option for us, but we have done that if the truck is going to be down. Most of our services are scheduled for the driver to come in and wait for the truck. It's not common enough to be a real issue, just those times where is loses a few PSI over night and the light is on for few minutes every morning can be tough to pinpoint. Showing the drivers where the valve is to have him shut it off a few hours before he gets here is an option, but that could lead to some unpredictable results. I fear the light will come on for a leak that the system can barely keep up and the driver will shut off the valve and drive it in with a flat tire.

 

How hard are they to install? I was quoted $500 an axle installed, so I'm wondering if it's worth saving $500.

 

Drilling through the spindles is a little tedious and getting the airline T connected in the axle can drive you to drink. Airline is cheap, have plenty of excess hanging out of everything.

 

I have Hendrickson on my walking floor. The first 2 years were great. Now the light stays on 100% of the time. I cannot find the problem. I am very happy with the CrossFires on the truck and trailer. K.I.S.S. comes to mind.

 

check your axle vents you might have a airline or the fitting inside the axle tube leaking could be the flow sensor as well

 

Shut the valve off to the system to make sure the light goes out. If the light stays on with no air, the problem is in the light circuit, most likely the flow switch.

If the light goes out, then you have air flowing. You can plug 1 axle at a time to figure out which axle. Leaks inside the axle can usually be heard at the axle vent, you make have to pull the hubcaps off to find it.

 

Despite the light being on all the time, the tires are not aired up. If there is an "internal" leak I would expect a leaking or blown wheel seal. I don't have that situation'. GrapeApe I will try your suggestion. I just hate it when I am totally stumped by a problem. This thing has gotten the best of me for a long time. I now have hearing aids that might help with the problem. I have soaped every connection I could find.