Figure 3-16.-Bias-ply tire construction.BIAS-PLY TIRES.— Bias-ply tires (fig. 3-16) areconstructed of rayon, nylon, or polyester casing plies ina crisscross pattern wrapped around steel bead wires.These bead wires prevent the tire from opening up andseparating from the rim at high speeds. The casing pliesgive the tire its shape.Mechanical IrregularitiesUneven tire wear is often caused by mechanicalirregularities on your piece of equipment. During yourprestart and post operations, inspect your tires for wear,as shown in figure 3-17. These conditions can be causedFigure 3-17.-Results of mechanical irregularities.Figure 3-18.—Directional mud and snow tread.Figure 3-19.-Mounting of directional tread tire.3-10
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