Issue link: https://read.dmtmag.com/i/34500
THE USE OF PRESSURE MONITORING AND INFLATION SYSTEMS WITH MICHELIN TRUCK TIRES In view of the increasing visibility and promotion for the use of pressure monitoring and/or inflation systems, Michelin takes the following position: • Michelin has not and cannot test every system that is being marketed/manufactured for effectiveness, performance, and durability. • The use of these systems does not nullify the MICHELIN truck tire warranty unless it is determined that the system somehow contributed to the failure or reduced performance of the tire. • Proper air pressure maintenance is important for the optimal performance of the tires, so it is important to make sure the system can maintain the pressures needed and/or can detect accurately when the pressures are outside of the normal operating range(s) for the loads being carried. • It is the responsibility of the system manufacturer to ensure that the tires are inflated as rapidly as possible to the optimal operating pressure in order to prevent internal damage to the tires. • Michelin strongly urges the customer to put the responsibility on the system’s manufacturer to prove and support their claims. In addition to the foregoing, please refer to the MICHELIN ® Truck Tire Warranty Manual (MWE40021) for a general discussion of what is and is not covered by the warranty. CENTRAL TIRE INFLATION SYSTEMS ON TRAILERS AND MISSED NAIL HOLES Central Tire Inflation (CTI) systems on trailers can sometimes make slow leaks caused by nails or other small objects penetrating the crown area of the tire undetectable. A slow leak can be compensated for by the air inflation system. The warning light of the CTI system will only come on if the pressure in the tire drops below a certain percent (usually 10%) of the regulated preset pressure. Even when the pressure drops below this point, the light will go off if the system is able to restore and maintain the preset pressure. The tires on trailers with CTI systems should be visually inspected before and after use and any imbedded objects removed and the tire repaired. An undetected imbedded object remaining in the tire can allow air infiltration and consequently a possible catastrophic failure of the sidewall. 20 Truck Technical Specifications