150416_Training documents

ProSteering ®

Road Wander or Loose Steering Problem description: There is lash or play in the steering wheel The steering system continually requires correction at the wheel to keep the vehicle from wandering. Checklist: Verify alignment of steer axle and rear drive axles Swap steer tires and look for mismatched belt tread Verify fifth wheel properly greased Verify this condition is not occurring at low vehicle speeds while accelerating due to deflection from high engine torque throughout the steering system and linkage Verify soft or loosely supported rear suspensions are not allowing the rear driving axles to become non-­‐square with the centerline of the chassis (rear steer condition) Potential cause(s) Verification or action Result Remedy

Verify the adjustment is made to the original manufacturers specification Torque mounting bolts to original manufacturers specification

Steer axle wheel bearing adjustment

Adjustment is correct and condition persists

Investigate the next potential cause

Bolts torqued to specifcation

Problem resolved

Low torque on steering gear mounting bolts

Bolts torqued, condition continues to exist Looseness found at a different connection point in the steering system (i.e., lug nuts, steering wheel to column, etc) All connection points within the steering system are tightened to the manufacturers specification

Investigate the next potential cause

Repair or replace loose components

Complete the original manufactures service procedure for lash in steering system

Looseness in mechanical system

Call technical support

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