Disassembling and reassembling the Minn Kota Ultrex control board requires careful attention to detail. Here's a step-by-step guide to help you through the process:
Disassembly Steps
- Position the motor's lower unit with the foot pedal in the 'toe down' position.
- Using a #1 Phillips screwdriver, remove the screws from the sensors located at the heel and next to the steering cables in the foot pedal's base.
- Remove the sensor screws, and carefully slide the sensors into the openings in the foot pedal base.
- Remove the E-ring securing the speed selector and pull out the part and spring.
- Loosen the nut on the potentiometer and slide it off its mounting location on the pedal.
- Use wire cutters to remove the zip tie that secures the wires from the momentary switch.
- Remove the momentary button, reed switch, and reed switch clip from the foot pedal upper section.
- Unroute the wiring for the potentiometer and reed switch.
- Flip the foot pedal assembly over to expose the bottom plate and remove all screws.
- Cut the cable tie securing the power switch wires, end-of-travel sensor wires, and the indicator light board ribbon cable.
- Disconnect the power leads, motor leads, accessory plug, steering sensor connector, steering leads, and lower unit bonding wire.
- Pull out the reed switch, potentiometer, and end-of-travel sensors.
- Remove the old control board from the foot pedal assembly.
Assembly Steps
- Guide the potentiometer and reed switch through the upper opening in the foot pedal base.
- Slide the control board under the autopilot sensor arm with the magnet and place it into the foot pedal base assembly.
- Place the sensors into their respective openings in the foot pedal base.
- Secure the pulley cover and steer left/end-of-travel sensor.
- Connect the wires to the new control board according to the wiring diagram.
- Position the indicator light assembly and secure it in place.
- Install the power leads and motor leads as indicated by the wiring diagram.
- Secure the bottom plate to the foot pedal base.
- Install the sensors and reed switch back into place.
- Secure the momentary button, reed switch clip, and potentiometer.
- Reassemble the foot pedal assembly, ensuring all components are properly connected.
For additional assistance or clarification, always consult the Minn Kota Ultrex Control Board Instruction Manual. This detailed resource provides comprehensive instructions and diagrams to guide you through the process effectively.