Air suspension manufacturers state that certain bolts must be checked and re-torqued at certain intervals based on mileage.
Reyco® Granning® air suspension systems have stops that allow slight side movement. Because of the slight movement, re-torquing certain bolts can be necessary and should be checked. Specs and procedures for U-Bolts and front pivot bolts are identified in both your Reyco® Granning® manual and your Frazer Air Suspension Maintenance Manual.
Not performing this procedure at the required intervals could cause suspension problems.
Here’s a video on basic routine maintenance and inspection for most air suspension systems.