150416_Training documents

ProSteering ®

Shimmy Problem description: A severe shake or shimmy condition is noticeable at the steering wheel Ch cklist Verify the rear driving axles are remaining square with the centerline of the chassis during load shift or trailer roll Potential cause(s) Verification or action Result Remedy

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

Repair or replace loose components

Complete the original manufactures service procedure for lash in steering system

Looseness in mechanical system

Call technical support

Bleeding the power steering system eliminated the steering wheel kick Investigate the next potential cause

Air was found in the power steering system

Bleed the power steering system following the manufacturers service procedure

Air is trapped in power steering system

Air is not present in the system and the problem still exists

150416_TECHNICAL GUIDE 31

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