Air Ride System

[2seniors]

Does anyone know what the correct psi is suppose to be? I have it @ 50 psi right now. I just purchased the coach and there was no manual on this system.

[lnicols]

Originally Posted by 2seniors

Does anyone know what the correct psi is suppose to be? I have it @ 50 psi right now. I just purchased the coach and there was no manual on this system.

I have the same system on my Roseair. You can go up to 100 psi but I wouldn't. I maintain 60 psi in all 4 and get a real nice smooth ride. Expirament with it and you will find what works for you.

Good luck!

[ktn1966]

The correct way to air up for pulling your trailer is to set it 5 psi measure the height of your trucks front wheel wells, such as mine is 39 inches from ground to center of wheel well. Hook up your trailer and measure again. If it is over 1/2 inch difference ( should be higher since trailer is squatting the rear and lifting the front) add air so the measurement is within a 1/2 inch of the "no trailer measurement". I recheck my measurement periodically since weight shifts or I add more to the bed of the truck for a longer trip.

To get another measurement, measure the trailer tongue height when unhooked and level, then after hooking up fill the air bags till the trailer tongue height is an inch or less then unhooked.

You want to tow your trailer level or up too an inch down for best towing.

[ktn1966]

I am sorry, the instructions where for a travel trailer on a truck set up. For motorcoaches you need the original ride height specs and then fill till you reach the original spec height.

[2seniors]

Originally Posted by ktn1966

The correct way to air up for pulling your trailer is to set it 5 psi measure the height of your trucks front wheel wells, such as mine is 39 inches from ground to center of wheel well. Hook up your trailer and measure again. If it is over 1/2 inch difference ( should be higher since trailer is squatting the rear and lifting the front) add air so the measurement is within a 1/2 inch of the "no trailer measurement". I recheck my measurement periodically since weight shifts or I add more to the bed of the truck for a longer trip.

To get another measurement, measure the trailer tongue height when unhooked and level, then after hooking up fill the air bags till the trailer tongue height is an inch or less then unhooked.

You want to tow your trailer level or up too an inch down for best towing.

Great advice for someone with a travel trailer but I have a Class A towing a car, Thanks for the info.

[ktn1966]

If you look at my next comment it explains how to adjust for class A MHs. Adjust the air pressure to bring your MH back to its original wheel well height. If you 4 down tow you should not need air ride since the is no downward pressure on the ball hitch.

As a safety concern, that some don't know, is that air bags do not increase your axle weight rating.

[ga traveler]

At our lot, most tradeins had 25 psi front and 50 to 60 psi rear. That is what I always used as a starting point when I installed airbags for a customer.

[2seniors]

Originally Posted by lnicols

I have the same system on my Roseair. You can go up to 100 psi but I wouldn't. I maintain 60 psi in all 4 and get a real nice smooth ride. Expirament with it and you will find what works for you.

Good luck!

is it the more psi the stiffer the ride ?
Thanks

[lnicols]

Originally Posted by 2seniors

is it the more psi the stiffer the ride ?
Thanks

No, not necessarily. You just have to try different psi settings out and see/feel what's right for you and your rig.