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Installing the Transducer on the Trolling Motor Shaft

Labels identifying the parts bags required for this procedure:

Bag label BBag label CBag label E
NOTICE

You must secure the transducer cable to the shaft or other secure location during installation. Damage to the transducer cable wire or the cable jacket can cause transducer failure.

NOTE: To avoid obstructions in the sonar image, you should mount the transducer on the shaft as far from the motor as possible.
  1. Remove the back of the shaft-mount bracket and four screws from parts bag Bag label B.
    NOTE: For a shaft diameter greater than 42 mm (1.65 in.), use the four screws from parts bag Bag label G instead.
  2. Remove the front half of the shaft mount bracket from parts bag Bag label E.
  3. If the trolling motor shaft is equal to or less than 25 mm (1 in.) in diameter, remove the rubber liner from parts bag Bag label C.
  4. Identify the arrow Callout number 1 on the front half of the shaft mount bracket to ensure that you orient the bracket with the narrow end of the angle Callout number 2 at the top when you attach the bracket to the trolling motor shaft.

    Bracket orientation with callouts
    NOTE: The trolling motor shaft bracket has an 8-degree angle to reduce the effects of the trolling motor barrel interference with the transducer beam.
  5. If you are installing the transducer on a trolling motor shaft equal to or less than 25 mm (1 in.) in diameter, wrap the rubber liner Callout number 3 around the shaft in the location you want to install the mount.

    Transducer assembly with callouts
    NOTE: The rubber liner is not needed when installing the transducer on a trolling motor with a shaft diameter larger than 25 mm (1 in.).
  6. Place the shaft-mount bracket Callout number 4 around the rubber liner on the trolling motor shaft.
  7. Insert the screws Callout number 5 into the shaft mount bracket and secure them using the 5 mm hex wrench in parts bag Bag label C.
  8. (Optional) Transition the trolling motor from the deployed to the stowed position and back again to test the location of the mounting bracket and make any adjustments as needed.
  9. Remove the knob from parts bag Bag label C.
  10. Attach the transducer to the mount using the knob Callout number 6, and tighten the knob by hand.
    NOTE: You can secure the transducer to the mount using the included low-profile hardware instead of the knob if you do not plan to switch transducer modes frequently during use (Installing the Transducer Using Low Profile Mounting Hardware).
  11. Secure the transducer cable to the motor shaft or other secure location.
  12. Route the transducer cable to the installation location of the sonar module while taking these precautions.

    • You must route the cable so that it does not come in contact with the propeller when the trolling motor is operating.

    • You should not route the cable close to electrical wires or other sources of electrical interference.

    • You must route the cable so it is not pinched when the trolling motor is deployed or stowed.

    NOTE: If necessary, for extra cable length you can connect an optional extension cable, available at buy.garmin.com or from your Garmin® dealer.
  13. Position the transducer to your desired angle, and tighten the knob ().
GUID-B524FC8E-CB9A-4156-B565-59B23B4E0E6F v4
April 2025
© 2022 Garmin Ltd.