![]() Probable Cause: Excessive camber, misaligned or damaged axle, improper bearing adjustment.Appearance: Tire worn on edge of one shoulder, greater than 12” in circumference.Corrective Action: Review tire and wheel-end maintenance practices.Can also be caused by some other type of wheel-end imbalance. Probable Cause: Improper inflation pressure or tire mis-mounted on wheel.Appearance: Localized areas of wear in shoulder, generally less than 12” in length.Tire Disposition: Reverse direction of rotation.Corrective Action: Analyze cause and correct.Probable Cause: Improper bearing adjustment, misalignment, mismatched dual tire diameter and/or inflation pressure.Appearance: Localized flat spots worn diagonally across the tread, often repeating around the tire.Tire Disposition: Continue to run until pull point, then retread.Corrective Action: Diagnose mechanical condition and correct.Probable Cause: Worn suspension components, mismatched dual diameter or inflation pressures, underinflation, improper bearing adjustment.Appearance: One or more interior ribs (not center) worn below adjacent ribs around the tire’s circumference.( Check out tips for tractor-trailer tire management here.) 1. Tire Disposition: Check for worn components, inflation pressures and matching tread depths.Corrective Action: Check for mechanical problem.Aggravated by slow rate of wear, poorly maintained suspension components. Probable Cause: Mismatched inflation pressure or tire diameters in a dual assembly.Alternate lugs worn to different tread depths around the tire. Appearance: Localized cupped-out areas of fast wear around the tire.Consult tire manufacturer when selecting tire for operation. Corrective Action: Review tire maintenance practices.High torque conditions, mountainous terrains and high inflation pressures aggravate this condition. Appearance: Each lug around tire worn high to low from front to back edge.Tire Disposition: Continue to run unless there are multiple spots reaching steel cables.Corrective Action: Remove stones & return to service.Over-inflation, misapplication of the tire. Probable Cause: Condition is common with vehicles operating on gravel surfaces.Appearance: Stones or gravel imbedded between tread blocks, sometimes reaching steel cables.Tire Disposition: May be repaired or retreaded if casing is undamaged otherwise, scrap.Probable Cause: New brakes (not worn in), unbalanced brake system, frozen brake lines, driver abuse.Appearance: Localized spot of excessive wear across tread face showing abrasion marks.Tire Disposition: Return to service if damage is not below base of tread groove.Ensure tire does not contact vehicle components. Probable Cause: Contact with vehicle components (mud flap brackets, bumpers), or spinning the tires on ice or loose road surface.Appearance: Cuts or lines 360 degrees around the tire.Consult retreader for possible repair and retread. Tire Disposition: Minor damage should return to service.Corrective Action: Review tire selection and operation.Probable Cause: Vehicle operation on rough surfaces (misapplication of tread compound).Appearance: Numerous small cuts to the tread surface with portions of tread removed, giving a rough appearance.( Find more information about on-vehicle tire balancing options here.) 1. Read more and see visuals below on the most common causes and corrective actions for common tire conditions. This guide provides various examples of different tire conditions for irregular drive tire, trailer tire and steer tires. ![]()
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