Motor-Seat Adjuster

MOTOR-SEAT ADJUSTER






WARNING: A SEAT STRUCTURE THAT HAS SEEN SIGNIFICANT LOAD MAY HAVE THE LOCKING MECHANISM ACTIVATED AND MAY EXHIBIT THE FOLLOWING SYMPTOMS:
- LOCKING PAWL (2) LOOSE
- LOCKING PAWL (2) ENGAGED INTO THE SEAT FRAME SIDEMEMBER (1)
- HEIGHT ADJUSTER ONLY WORKS ON OUTBOARD SIDE
- BROKEN OR MISSING SHEAR PIN (3)

IF ANY ONE OR MORE OF THESE SYMPTOMS EXIST REPLACE THE HEIGHT ADJUSTER ASSEMBLY. DO NOT ATTEMPT ANY REPAIRS. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY OR DEATH.


FRONT TILT MOTOR


REMOVAL




1. Disconnect and isolate the battery negative cable.
2. Remove the affected seat with the inoperative motor (1).
3. Remove the seat cushion and pan.




4. Disconnect the motor electrical connector.




5. Remove the fasteners holding the motor to the seat adjuster (1).
6. Remove motor from seat adjuster (2).

INSTALLATION




1. Position motor (1) on seat adjuster (2).




2. Install the fasteners (1) holding the motor to the seat adjuster (2). Tighten the screws to 5 N.m (44 in. lbs.).




3. Connect the motor electrical connector.
4. Install the seat cushion.
5. Clip the wire harness to cushion pan.
6. Install the seat assembly.
7. Connect the battery negative cable.
8. Verify normal operation of the power seat assembly.


HEIGHT ADJUST MOTOR

REMOVAL

WARNING: USE CAUTION WHEN REMOVING THE HEIGHT ADJUST MOTOR (3) IF THE MOTOR IS INOPERATIVE, AND THE POWER SEAT IS NOT IN THE FULL UP POSITION. THE SEAT ADJUSTER ASSEMBLY (2) IS UNDER LOAD FROM THE HEIGHT ADJUST SPRING AND MAY CAUSE THE MOTOR TO ROTATE UNDER PRESSURE WHEN THE FASTENERS ARE REMOVED. THE SEAT ADJUSTER ASSEMBLY ALSO MAY SPRING UPWARD WHEN THE MOTOR IS REMOVED. IF THE HEIGHT ADJUST MOTOR IS OPERATIVE, MOVE THE POWER SEAT TO THE FULL UP POSITION PRIOR TO DISCONNECTING THE BATTERY.




1. Disconnect and isolate the battery negative cable.
2. Remove the affected seat with the inoperative motor (3).
3. Remove the seat cushion and pan.




4. Disconnect the motor electrical connector.




5. Remove the fasteners (1) holding the motor (3) to the seat adjuster (2).
6. Remove screw and washer from the motor shaft.
7. Remove motor (3) from seat adjuster (2).

INSTALLATION




1. Ensure the seat adjuster (2) is in the full up position by pulling upward on the upper adjuster assembly.
2. Position motor (3) on seat adjuster (2).
3. Install the motor shaft screw and washer and tighten until snug. Do not torque screw at this time.




4. Install the screws (1) holding the motor (3) to the seat adjuster (2). It may be necessary to twist the motor slightly to align the fastener holes.
5. Starting with the bottom screw, tighten the motor screws (1) to 9 N.m (80 in. lbs.).
6. Tighten the motor shaft screw and washer to 6.5 N.m (57.5 in. lbs.).




7. Connect the motor electrical connector.
8. Install the seat cushion.
9. Clip the wire harness to cushion pan.
10. Install the seat assembly.
11. Connect the battery negative cable.
12. Verify normal operation of the power seat assembly.