Issue link: http://read.dmtmag.com/i/34501
Effect of Inflation Pressure on Tire Life 100 90 80 70 60 50 40 30 20 10 0 Loss of Service Due to Overinflation Loss of Service Due to Underinflation Mismatched pressure in dual position will cause the tires to rotate at different revolutions per mile resulting in irregular wear and tire damage. NOTE: Due to the unique casing design of the MICHELIN ® 40% 60% 80% 100% 120% % of Recommended Inflation Pressure ® ® ® X One tire, traditional air pressure adjustment practices for dual tires may not apply to the MICHELIN X One tire product line. For additional information, see Pages 63-70 of Section Four, MICHELIN X One Tires and applicable Technical Bulletins. Under- Inflation Over- Inflation Tread Contact With Road Proper Inflation It is important to maintain inflation equipment (air compressor, air lines, and air dryer) so as not to repeatedly introduce moisture into the tire, thereby accelerating oxidation effects to the tire and rim. NITROGEN Nitrogen is very dry inert gas which makes up UNDERINFLATION Causes abnormal tire deflection, which builds up heat and causes irregular wear. Similar to the rim being too wide. OVERINFLATION Causes tires to run hard and be more vulnerable to impacts. It also causes irregular wear. Similar to the rim being too narrow. PROPER INFLATION The correct profile for full contact with the road promotes traction, braking capability, and safety. approximately 78% of the air around us and can be effected by humidity. Tires inflated with a normal air compressor already contain 78% nitrogen. Increasing the nitrogen percentage to 100% with a nitrogen inflation system will not adversely affect the inner liner of the tires nor the performance of the tires under normal operating conditions. While there are advantages for industrial and large off-the-road earthmover tires, the advantage in commercial truck products is difficult to verify. Moisture, rather than oxygen, is the bigger concern for casing degradation. Using good equipment (air compressor, air lines, and air dryer) will reduce the moisture content of the air in the tire. Moisture, when present in the tire, greatly accelerates the oxidation effects to the tire and rim. The introduction of even a small amount of normal air will negate the advantage of the intended use of 100% nitrogen. If a nitrogen system is to be utilized, Michelin would recommend it be installed by trained personnel using appropriate equipment and safety guidelines. Regular pressure maintenance remains critical, and tire inflation check intervals should not be extended due to nitrogen use. Section Three: Extending Tire Life 37 Mileage or Tire Life in %