Issue link: https://read.dmtmag.com/i/34500
SEALANTS THE USE OF SEALANTS IN MICHELIN TRUCK TIRES The use of sealants in MICHELIN Truck Tires does not affect the tire warranty unless it is determined that the sealant has adversely affected the inner liner or the performance of the tires. Prior to using any type of sealant, Michelin strongly recommends that the customer make sure the sealant has been tested and certified by the sealant manufacturer as being safe for use in tires. Please consult Michelin prior to using sealants in any MICHELIN tires that have sensors in them. The sealant may adversely affect the performance of the sensors. Michelin has jointly tested a “non-aqueous” sealant for use in its regional, urban, sanitation, and on/off road tires. It was determined that the sealant was both safe and effective in helping to reduce air loss as a result of punctures. “Non-aqueous” means the sealant contains little or no water. Actual sealant testing using the Karl Fisher Method (ASTM 6304, weight percent) indicated a water content of less than 3%. Since the sealant is “non-aqueous,” it does not promote the oxidation (rusting) of the steel cables when a puncture does occur. In order to remain “water free,” it is important that once the container is opened during usage, it is resealed after use and stored in an air-conditioned space if possible. This will prevent the absorption of moisture from the atmosphere. VALVE STEM INSPECTION LOOSE AND LEAKY VALVE STEMS Whether they are new or have been in use over a period of time, valve stems can become loose. It is recommended that you verify torque on all wheels put into service. When installed, they should be torqued, using the proper tool at 80 to 125 in/lbs (7 to 11 ft/lbs) for aluminum wheels and 35 to 55 in/lbs (3 to 5 ft/lbs) for steel wheels. Checking for loose and leaky valve stems should be made a part of your regular maintenance schedule. Methods for checking for loose valve stems: – check with a torque wrench – check by hand to see if the valve nut is loose – spray a soapy solution on the valve to see if there is a leak Corrosion-Related Leak 52 MICHELIN X One Tire Maintenance ® ®