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Horizontal Actuator Adjustment

Chucking can be corrected by adjusting the horizontal actuator and pinion gear to full mesh with the lower adjuster lower track rack-gear as follows:

  1. Operate seat to full up position, and approximately a 3/4 full forward position. Loosen horizontal actuator screws.
  2. Using a large screwdriver as shown in illustration, apply outward pressure on horizontal actuator (about 15-25 lbs.) and at the same time energize horizontal switch to move seat fore and aft slightly. This helps seat the horizontal actuator pinion gear teeth tight to the lower track rack gear teeth and eliminate free play between gear teeth. While maintaining outward pressure against horizontal actuator, tighten screws.
    Fig 1: Horizontal Actuator Adjustment
    G09358760Courtesy of GENERAL MOTORS COMPANY