freightliner air bag suspension adjustment

lautenbach May 08, 2022 adjustment , bag , freightliner , suspension Comment

I have a 2001 Freightliner ClassicXL and have noticed that the rear air bags are about 12-1 higher inflated than the front drive bags. Dec 1 2011 3 BernieD.

How To Remove And Replace Freightliner Cascadia Leveling Valve Step By Step Youtube

3 58-19 58 Range.

. My coach has the AS120 front axle which means the proper height is 10 inches measured from the bottom of the frame rail to the center of the shock absorber bolt. 1 The front ride height will change the front-axle caster settings. If the ride heights are not set properly two important factors are affected.

Its simple to make I made it 10 inches long and marked 9 34 inches on it. Design your linkage accordingly. 2 The rear ride height will change the drive-shaft.

Firestone Air Bags for Freightliner Vans. The ride height is controlled by the height valve and really doesnt have anything to do with pressure. 22 Place the level tool vertically against the outside of the air-spring bag as shown in Fig.

The exhaust goes to the TOP port the bags go to the BOTTOM port. Your linkage should be such that fully deflated to max height not running height but the. Freightliner air suspension and supply.

And consider new shocks if porpoising is the problem. If you think the ride is harsh check your tire pressure vs the actual weight the tires are carrying. Ad Leading Provider of Aftermarket Parts Accessories for Heavy Duty Trucks.

Air from the brake protection valve goes to the center port. There is a ride height spec for each chassis model so I suggest you contact Freightliner Customer Service 1-800-FTL-HELP 247 and ask about the spec and where to measure the height on yours. Haldex PR Plus height control leveling valve 90554921 provides precise adjustment to ride height var.

But once back under trailer the back. The rear axle is the AD200-RS1719 its ride height is 9 34. Up to 25 cash back If the ride height was this far out of adjustment to allow the suspension to travel 12 inches it would be VERY noticeable.

The problem was the air dryer controls and governor see previous thread. This can affect the handling of your coach on the highway and tire wear. On my front bags the correct height is 65 to 70 lbs air pressure in the bag.

Freightliner Airbag Lean Problem. Product Image Item Name-Price. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators.

The ride height is the setting for the air suspension on your chassis. Some arms are adjusted by re-positioning the actuator on the arm while others may be bent updown to alter height. A common problem with Airliners is the rear airbag misalignment.

Subtract the measurement found in Step 6 from the measurement found in Step 5 to determine the current ride height of your suspension. Use wAll Height Control Valves. The bottom of the frame rail to the ground measures 30 762mm and the center of the wheel to the ground measures 20 508mm.

Free Shipping on all Ride-Rite air bag kits shipped to continental USA. 21 Fully inﬂate the rear suspension then place a digital level tool vertically against the outside of the frame rail web and set it to zero. Your linkage should be such that fully deflated to max height not running height but the max the suspension can travel should move the arm thru 45 degs where the design height is exactly 12 way.

I place one end of the stick against the bottom of the frame rail and adjust the height control valve until the opposite end of the stick is centered on the shock absorber bolt. Freightliner Suspension Air Bags - Firestone. Firestone air helper springs provide up to 5000 lbs of increased load support while improving ride quality.

Subtract the measurement found in Step 6 from the measurement found in Step 5 to determine the current ride height of your suspension. But when I pulled it out from underneath a loaded trailer about 30500lbs on drives and aired up the suspension all bags were the same. The Freightliner Airliner is a combination of Parabolic leaf spring and Air bag suspension that works in combination to provide a soft ride.

Ok 1st off you have lines run wrong. Never swing the arm thru 180 deg. Measure the distance from the center of the wheel to the ground.

Subtract the second measurement 20 in from the first measurement 30 in and this equals. Call 1 877 774-6473 or Order Online Today. 2nd you never hyper extend the arm.

The leaf spring acts as a control arm and load bearing member for Low Frequency Vibrations. For a while I have had a leak of some sort in the front air as indicated by the gauge. The way you have it it will overfill or dump because the lines are hooked to wrong ports.

2 In Stock as of April 29 2022 925 PM EST. And the center of the wheel to the ground measures 20 in. 63 Center the control lever on the valve by inserting a 532-inch 4-mm pin or drill bit into the hole in.

Always adjust the height control valves while INFLATING the air bags never adjust while DEFLATING the air bags. Last month I had an air system failure on the road and had it towed to Freightliner in Yakima WA for repair. Follow Geoffs advice.

Changing the air pressure in the bag just changes the ride height. The bottom of the frame rail to the ground measures 30 in. Dickandlois Members 4234 posts LocationWhere ever the wheels stop.

The air pressure adjustments you probably read about would be for the Chevy later Workhorse P30 chassis which used combined air and coil spring in the front suspension. 62 Adjust the position of the valve body until the distance from the bottom of the left axle stop to the top of the U-bolt is correct. Using a digital level tool check the angle of the air-spring bag relative to the frame rail.

That is all there is to adjusting your ride height control valves. Air suspension ride height on most freightliner air suspension systems should be no more than 2 58 -3 inches and this is measured on the U-bolt Pad on top of the axle to the bottom of the axle stop on the front drive.

Xc Rear Suspension Freightliner Chassis Rv