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MICHELIN AMERICAS TRUCK TIRES
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TIRE INFLATION BASICS

PROPER INFLATION: THE MOST IMPORTANT STEP OF TIRE MAINTENANCE.

Many of today's tire problems are caused by insufficient or careless attention to tire pressures. No tire or tube is completely impervious to loss of air pressure. To determine the proper inflation pressure, all trucks should be weighed.

HOW TO WEIGH YOUR TRUCK

Be sure to weigh your vehicles, fully loaded, on a scale. Each axle, front and rear, and trailer must be weighed separately. Actual gross axle weights should be compared with the manufacturer's tire data book to determine the inflation pressure required.

The load carried by each individual front axle tire should be noted. If the maximum load-carrying capacity of the tire is below the actual scale weight, greater carrying capacity tires must be used, either a higher load index (load range or ply rating) or a larger tire size.

COMPARE TIRE INFLATION
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THE EFFECTS OF UNDER-INFLATION

Under-inflation will increase the deflection of the sidewalls. The effect of over-flexing and the generation of too much heat will cause carcass fatigue and deterioration.

THE EFFECTS OF UNDER-INFLATION

The tire carcass becomes more susceptible to damage in the form of shocks and rapid tread wear.

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