One of the leading causes of tire failure and casing rejection during the retread process is a faulty repair. This area is most often overlooked when fleets design tire maintenance programs, but as a recent survey from the monthly magazine Tire Business indicates, 46% of tire failures were caused by improper repair procedures. Of course this means higher tire costs.
When a radial tire has been damaged to the point where the steel cords are exposed to the elements it is important that the area be repaired as soon as possible so that moisture is not allowed to migrate along the belt package causing further damage.
The most effective method of repair for nail holes (1/4") is the plug and patch repair. The plug stops the migration of moisture and the patch on the inside of the tire supports the plug. For repairs larger than a nail hole (3/8" and larger) the tire should be removed from service.
This method of repair not only reduces the number of tire failures but promotes casing recovery as well.
Description: Tire rotation refers to the regular practice of switching the position of each tire on the car.
Purpose: Tire rotation helps to equalize tread wear and is critical to gain the maximum life from your tire investment.
Maintenance Tips/Suggestions: Refer to your owner's manual for the recommended rotation interval and pattern; generally a rotation interval of 6,000 miles is recommended. The rotation pattern varies with different makes and models, which shows the tire locations during rotation. Some vehicles have different size tires on the front and back or directional tires. This limits the locations that a tire may take on the vehicle. When in doubt, check the owner's manual or consult a professional technician for guidance. Tire rotation time also offers a good opportunity to have the tires and wheels balanced. It's another step you can take to maximize your tire investment.
Tires & Wheel Balance
Description: Wheel balance refers to the proper distribution of weight around a revolving tire and wheel assembly. Poor wheel balance can have a marked impact on both your car and your safety.
Purpose: Proper wheel balance ensures that the wheels, while spinning, do not have a heavy spot that can cause vibration and premature wear of tires, struts, shocks and other steering and suspension components. When combined with proper wheel alignment, balanced wheels ensure smooth and enjoyable driving.
Maintenance Tips/Suggestions: The most common signs of unbalanced tires are vibration and noise problems. When driving with an out-of-balance wheel, the wheel literally bounces down the road rather than spinning smoothly. This can affect the speed, handling and mileage of your car. Many of today's cars have lightweight suspension systems and are therefore, more sensitive to imbalance than older cars. It's a good idea to have your car's wheels balanced when rotating the tires, about every 6,000 miles. It's not uncommon for wheels to lose a wheel weight from time to time; so periodic balancing minimizes the impact of unbalanced wheels on your car.