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Types of Treads

 
  
 
TYPES OF TIRE TREADS Figure  3-20.—Nondirectional  mud  or  snow  tread. Figure  3-21.-Cross-country  tread. by improperly balanced tires, bad front-end alignment, or  operating  an  all-wheel  drive  vehicle  with  the front-wheel  drive  engaged  on  hard-surfaced  roads.  This wear must be documented and turned in for repair. Tire treads are made for a specific purpose. The type of equipment you are operating and the type of job you are performing dictates what type of tire and tread you should use. Directional Tread The directional mud and snow tread (fig. 3-18) is of a V-design with large spaces between the lugs. The spaces between the lugs are kept free from snow because of tire rotation and flexing, therefore improving traction. A direction tire maybe mounted on the rim only in one way and delivers traction in one direction only. The point of the V-design must contact the ground first when traction  is  required.  When  directional  tread  tires  are mounted  on  a  dead  or  steering  axle  (unless  the equipment is all-wheel drive), they are mounted so the open V meets the ground first (fig. 3-19). This type of tread is commonly found on graders. Nondirectional Tread The nondirectional mud and snow tread design (fig. 3-20) also has large spaces between the lugs. The lugs are placed perpendicular to the center line of the tire. This design provides good traction in both directions. Cross-Country  Tread The cross-country tread (fig. 3-21) is the same as the mud and snow tread, except that the cross-country tread  has  rounded  shoulders. Regular Tread Regular tread (fig. 3-22) consists of small spaces between tread patterns. This allows for a quiet ride and Figure  3-22.—Regular  tread. 3-11


   


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