Crossfire Dual Tire System

[rickandcheryl]

Anyone have experience with the Crossfire Dual Tire Equalization/Inflation System? Good? Bad? Or what. Can you install them yourself or do you have to remove the wheels? How do they mount? etc. Any help will be appreciated. Thanks.

[Mr_Bill]

I have them on my coach and really like them. It makes checking the air pressure each stop very easy. Also, makes it simple to add air if needed. All the research I did recommended some kind of tire air pressure equalization scheme to extend your tire life.

I had a shop put mine on. I didn’t have the tools needed. If you have the tools to loosen the lug nut so you can mount the bracket, it isn’t very difficult to install them. You do not need to remove the wheels.

[DriVer]

Quote:

Originally Posted by rickandcheryl How do they mount? etc. Any help will be appreciated. Thanks.

I have Crossfires. The case of the unit is pop riveted to the center hub of the hub cap which needs to be removed.

Mount the inflater unit 90 degrees opposite of the valve stems or perpendicular to the valve stems which should be opposite of one another.

The tires do not need to be removed to mount the Crossfire. You can reach up on the inside dual and attach the inner inflater by hand. It needs to be tightened finger tight or at the very most tightened only one flat using a tool. (plier or wrench) There are 6 flats on the nut. Once you begin to screw in the inflater valve the valve will begin to hiss. Continue finger tightening until you no longer hear the hiss. The outside tire inflater can be fitted same way through the wheel valve stem opening.

The braided hoses can be turned in the socket of the body of the Crossfire to ease installation.

The window in the Crossfire body will display black if the pressure is too low or red if it's too high. There is a index mark on the sides and a straight line on the scale at the selected pressure of the device. Those lines should be centered with one another.

i use my tire inflation gauge to check the pressures and then I'll use the Crossfire for a quick check.

I also use a TPMS on the Crossfire as well.

[rickandcheryl]

Thanks for the info guys! A couple of more questions. Do you have to buy them with a pre-set pressure range? I usually run max, 110 psi pressure. Are they available at this pressure. What do they cost and where would be the best place to buy them? Thanks

[oemtech]

Rick,

We have the same coach and unless you are maxed out on weight I would look at dropping the air pressure in your tires. I am only running 90 psi... after weighing and checking the charts. I add 500 lbs to my weights as a error factor.

[DriVer]

Quote:

Originally Posted by rickandcheryl I usually run max, 110 psi pressure.

Although you can buy 110 PSI Crossfires, I would not recommend it. There isn't a W 20-22 Series on the road that needs to run 110 pounds of air in each tire. Weigh your rig and adjust the tire pressures accordingly. You'll be pleased with the results.

On my rig I run 90 PSI Crossfires on a 15,000 GAWR (rear) axle.

[Baby Bear]

Rick: I run the crossfires and like the fact that all I have to do is look at a gage and I know the pressure.
The other question you didn't ask, but I get ask when people see the setup, what happens if I have a blowout. The system works so fast the remaining tire keeps the original pressure. I've blown 2 Michelin tires and it works as it should.
Go for it, it's a safety factor, in my opinion, if that means anything.

[rickandcheryl]

Thanks again, and I run 110 psi for less rolling resistance and this coach is very heavy. Maybe I should drop the pressure to 100 psi. Also, still looking for the best place to purchase the Crossfire System.

[Samflhomes]

Quote:

Originally Posted by rickandcheryl Thanks again, and I run 110 psi for less rolling resistance and this coach is very heavy. Maybe I should drop the pressure to 100 psi. Also, still looking for the best place to purchase the Crossfire System.

I am curious as to how heavy you are. I have a W-22 and it can not exceed 22000 pounds GVWR and 26000 GCWR. I am at max weight yet my tires are 85 pounds rear and 90 front

[DriVer]

Considering that the front and rear axles are loaded to their maximum capacity, the inflation pressures for the tires on those axles would be:

Rear: 90 PSI
Front: 95 PSI

Tire experts will instruct that running tires over the recommended pressure for the maximum load will only serve to prematurely wear the center of the tire down and the ride comfort will be unduly harsh.

I inflate my tires for the GAWR and not the actual load which is most likely more pressure than the tires actually need.

Rickandcheryl stated that; "this coach is very heavy." How much does your coach actually weigh?

[oemtech]

Sam,

Get your 4 corners weighed and add 600 lbs to the heavest front and rear wheel. Now take that weight, check the tire chart for your tires and set your pressure accordly.
EXAMPLE
PSF - 3,400 lbs + 600 lbs = 4,400 lbs Chart = 4,160 lbs @ 95 lbs (single)
PSR - 6,280 lbs + 600 lbs = 6,880 lbs Chart = 7,180 lbs @ 85 lbs (dual)

[retiredrlk1]

Go to Myers Tool Supply and you will find all pressures listed at $64.79 each.

[Texun1]

Does anyone have photos of an install on hubcaps? For the life of me I cannot see how they can be installed using the brackets supplied.

Thanks,
Bill

[DriVer]

Quote:

Originally Posted by Texun1 Does anyone have photos of an install on hubcaps?

Bill, Take a look and see if this helps.



The hub is removed and drilled. The Cross Fire valve body is then attached via a screw from the inside of the hub into the valve body at the location shown. It's actually pretty easy.