The DuraRide suspension system is equipped with two air springs which are controlled for ride height by a position sensitive air valve. As more weight is applied to the fifth wheel, the springs collapse. The valve senses the change in position and increases spring air pressure to compensate for additional load and to restore the vehicle to its original ride height. As the load is decreased, air is released from the springs to maintain proper positioning. Spring ride height should be approximately 4-1/2" after air pressure has stabilized. Height changes required for load changes are not instantaneous. Stabilization takes 5-7 seconds under normal conditions. Ride height is factory set and should not require adjustment, unless leveling valve and/or linkage requires replacement.
DuraRide Service and Maintenance Made Easy
The DuraRide suspension system is furnished with five spherical bearings which allow the suspension to articulate. The bearings are located at each end of the boom lift cylinders and at the swivel point of the A-frame structural member to which the rear axle is attached. The swivel point grease fitting is located just above the bearing in the top plate of the A-frame. A remote lube point is provided for the swivel poing bearing.
Capacity units with the DuraRide suspension system option will also benefit from our exclusive DuraPlus 10-year frame warranty.