Precor 9.17 Appendix page 31

7. Disconnect the speed sensor connector (J1) from the lower PCA. Remove the speed
sensor.
8. Set the replacement speed sensor in it's mounting position, replace and tighten the speed
sensor mounting screws. Remove the paper or similar material that is covering the drive
motor holes.
9. Feed the speed sensor wire harness to the lower PCA. Cable tie the speed sensor wire
harness to the lift motor cable. Re-connect the speed sensor connector to the lower PCA.
10. Replace the shield that covers the lower PCA.
11. Check speed sensor operation per Procedure 5.4.
12. Carefully snap the left side cover onto the frame.
13. Replace the lower front cover.
9.17, 917si Treadmill
Page 31