Tire diagnostics
One Sided Wear
Appearance
Wear increasing fron one side to the other
Probable Cause
Out of alignment specification parameters (camber, toe, axle, parallelism)
Corrective Action
Check alignment and inspect for worn parts
Tire Disposition
Continue to run until minimum tread depth is reached
Shoulder Step Wear
Appearance
Partial or full depression of the inside or outside shoulder tread rib
Probable Cause
This condition is common on radial tires in slow wearing operations
Corrective Action
None
Tire Disposition
Continue to run or rotate
Erosion / River Wear
Appearance
Circumferential worn area situated on the sides of the tread ribs
Probable Cause
Condition mos commonly occurs on slow wearing radial tires in steer or trailer position (free rolling)
Corrective Action
None
Tire Disposition
Continue to run
Depression Wear
(Intermediate)
Appearance
One or more interior ribs (not center) depressed more than adjacent ribs
Probable Cause
Incorrect air pressure, worn mechanical part, or non-uniformity such as mismount
Corrective Action
Check air pressure and mechanical issues
Tire Disposition
Rotate o retread
Diagonal Wear
Appearance
Manifest in the form of oblique wear patches. Can appear singularly or repeat around the circumference of the tire
Probable Cause
Misalignment, radial and lateral runout, severe out of balance, loose wheel bearings or steering parts
Corrective Action
Check for mismount and worn parts
Tire Disposition
Reverse direction of tire or retread
Radial Feather Wear
Appearance
Feathering at the edge of the tread ribs
Probable Cause
Usually the result of continued exposure to lateral force, such as excessive toe. Can also form as a result of counter-steering to compensate for driving axle misalignment
Corrective Action
Check alignment
Tire Disposition
Rotate to another position or retread
Multiple Flat Spotting Wear
Appearance
Multiple radially worn areas around the tire
Probable Cause
Faulty shocks, loose/worn wheel bearings, server balance issues, mismatched pressures or tire diameters, excessive high speed empty operation.
Corrective Action
Check for mechanical issue, check air pressure
Tire Disposition
Continue to run or retread
Radial Feather Wear
Appearance
Localized wear patch on the shoulder rib of the tire. This patch can repeat around the circumference of the tire.
Probable Cause
Faulty shocks, lateral runout, loose wheel bearings, mis-mount, sever balance issues.
Corrective Action
Check for mechanical problem
Tire Disposition
Continue to run, rotate or retread
Radial Feather Wear
Appearance
Circumferential depression wear of the center tread rib.
Probable Cause
Overloaded/underinflated, faulty shocks, loose wheel bearings, mismount, high speed empty haul conditions
Corrective Action
Check air pressure/load weight and word parts.
Tire Disposition
Continue to run, rotate, or retread.
