Tire inflation

[Craig H]

Has anyone heard of the "Cats Eye" system. A neighbor of mine took his coach in for service at a garage that primarily services big rigs. They told him about this system that equalizes both duals through one valve. He is getting it done for around $200. Sounds great to me but this is the first time in twenty five years of RVing that I have heard of this. Anyone else?

[Clay L]

I have seen such a product - I believe called "CrossFire" in a lot of RV stores. I think Camping World carries it.

I don't understand what keeps a flat on one dual from draining the other one.
I would think there must be a safeguard of some sort built in.

[tmar10]

Here is the link to their site:

http://www.linkmfg.com/catseye/catseye.html

They say an internal check valve protects the good tire in case of a flat.

[RickO]

I think you'll find that a lot of folks on this forum have good things to say about them. It's important to keep the duals with equal pressure. I don't think I found any examples of the check valve failing and causing a "double flat". Having said all of that, I don't use them but rather have a Doran 360 tire pressure monitoring system. Better but much more expensive.

[Bruce W]

I just installed the "crossfire" units on my RV. They work as promised and they block air transfer if there is a 10 pound difference. I verified this during the install when I screwed the hose on the the inner valve stem first and no came out of the unattached hose for the outer wheel.
getting the lug nut torqued to 475 ft pounds off to mount the bracket was the only hassle.

[Clay L]

475 foot pounds is a lot. No tire store or RV shop that I checked with had the proper tools to set the torque.
I ended up buying a 3 to 1 torque multiplier, a 33 mm one inch drive socket, a one inch drive extension ten inches long and a 250 foot pound torque wrench. A bit pricey - $430 total - but at least I can do the job right now.