1. Remove bottom Plate by removing rubber feet with screws

2. Loosen screw holding cable clamp

3. Rotate cable clamp and disengage rack from gear

4. Remove wires from old pot (Black, Blue and Yellow)

5. Connect wires to new pot as shown in diagram below

6. Remove old pot with 1/2" open end wrench

7. Depress toe of pedal to make contact with switch

8. Rotate new pot gear counter clockwise to stop

9. Install new pot in cradle and tighten

10. Engage rack gear to pot gear, back off one tooth from stop

11. Rotate cable clamp into rack holding position, tighten screw

12. Put Bottom Plate back on rubber tighten feet with screws...

Black Wire: Signal Ground

Yellow Wire: Feedback for Bandpass

Blue Wire:: Signal out of Bandpass Filter