150416_Training documents

ProSteering ®

Binding, Darting, and Oversteer Problem description: A binding condition is when increased steering efforts are required intermittently and/or unexpectedly Binding or darting is a condition when there is suddenly more steering assist than expected. Checklist: Verify there is no binding condition on the input side of the gear (at the i-­‐shaft, u-­‐ joint, or firewall boot) Verify there is no gear to frame interference Verify there is no binding at the king pins / steer axle linkage Q: Do you feel intermitent binding at the steering wheel?

A: Yes

Potential cause(s)

Verification or action Position the steering wheel at the location where binding is felt and look for an interference

Result

Remedy

Repair or replace interfering components

Interference condition is observed

Binding condition exists at a specific point of each wheel revolution

No interference observed

Investigate the next potential cause

throughout the steering linkage connections

Timing marks are not aligned Timing marks for slip mechanisms are aligned Lubrication is found to be inadequate U-­‐joints are lubricated to the original manufacturers recommendations.

Realign assembly

Verify the multiple u-­‐ joints are properly phased and aligned.

Investigate the next potential cause Lubricate u-­‐joints to original manufacturers guidelines

Multiple u-­‐joints

Verify multiple u-­‐joints are properly lubricated

Investigate the next potential cause

150416_TECHNICAL GUIDE 21