How is minimum dual spacing measured?
A. Minimum dual spacing is measured from the centerline of one tire in a dual position to the centerline of the other tire. Q. We know that any tire with less than 80% of the recommended inflation pressure must be deflated, demounted and inspected before it can be returned to service. What do we do when a hot tire is underinflated but above the 80% threshold? A. According to the Rubber Manufacturers Association (RMA), underinflated hot tires above the 80% threshold should be inflated to the cold inflation pressure plus 10 psi. Once the tire cools to atmospheric temperature, the inflation pressure can be adjusted to the correct level. Q.
