operators_manual

WARNING
DO NOT attempt to raise the vehicle to
remove or install a damaged tire and
wheel assembly if you are not fully
qualified and not equipped with the
proper tools and equipment. DO NOT
attempt to reinflate a tire that has been
run flat. Obtain expert help. A person
can be seriously injured or killed if us-
ing the wrong service methods. Truck
tires and wheels should be serviced
only by trained personnel using proper
equipment. Follow OSHA regulations
per section 1910.177.
NOTE
Follow all warnings and cautions con-
tained within the tire and wheel manu-
facturers literature.
Overloaded Tires
Overloading your truck is as damaging to
your tires as underinflation. The following
chart shows how neglect or deliberate
abuse can affect the life of your tires.
Effects of Load and Pressure on
Tire Life
Vehicle
Load
Tire
Pressure
Expected
Total Tire
Mileage
Normal Normal Normal
20% Over 20% Low 70%
40% Over 30% Low 50%
60% Over 35% Low 40%
80% Over 45% Low 30%
100% Over 55% Low 25%
Overinflated Tires
Overinflating the tires reduces the tread
contact area with the road surface,
concentrating all of the vehicle weight on
the center of the tread. This causes
premature wear of the tire.
WARNING
Overinflated tires can cause accidents.
They wear more quickly than properly
inflated tires and are more subject to
punctures, cracks, and other damage.
They could fail and cause you to lose
control of your vehicle resulting in an
accident causing death or personal in-
jury. Be sure all tires are inflated cor-
rectly according to the manufacturer's
recommendations.
Matching Tires
Be sure to buy matched tires for your
vehicle, especially on the rear axles.
Mismatched tires can cause stress
between axles and cause the temperature
of your axle lubricant to get too hot.
Matched tires will help your driveline last
longer and will give you better tire mileage.
MAINTENANCE - Tires
292 Y53-6126-1A1 (01/21)
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