Level 2 · Advanced Technician · Module 15
Alignment & Tracking
Alignment checks, tire wear patterns and bent axles.
Lessons
- 01Checking Axle AlignmentMeasure axle position against the coupler and between axles.
- 02Reading Tire Wear PatternsWhat each wear pattern says about pressure, alignment or a bent axle.
- 03Bent Axle & Spindle DiagnosisConfirm and handle a bent axle before replacing tires again.
- 04Separate Alignment Wear from Other Tire ProblemsUse tire wear patterns to distinguish alignment concerns from inflation, balance, loading, and braking problems.
- 05Evaluate Loading and Trailer AttitudeCheck load distribution, component ratings, and trailer level before treating sway or uneven loading as an alignment problem.
- 06Prepare a Repeatable Alignment MeasurementSet up an unloaded, level, unbound trailer with suitable axle references before measuring heavy-duty suspension alignment.
- 07Measure Centerline, Thrust, and Scrub RelationshipsApply the heavy-duty measurement sequence while keeping its tolerances separate from general axle-installation limits.
- 08Adjust Track Rods and Preserve AlignmentCorrect heavy-duty axle position through the adjustable track rods and verify that the suspension can retain the adjustment.
- 09Check the Components That Support AlignmentInspect suspension, bearings, and wheel compatibility without applying one suspension or bearing procedure to another.
- 10Distinguish Brake Pull from Axle Tracking FaultsUse the brake troubleshooting guidance to investigate pulling and tire skidding without assuming that axle adjustment is the cure.