Assembling the internal components

Follow the steps below to fit the transducer to your hull.

Mounting

Note

To achieve a long lasting watertight seal, ensure that all parts are clean and dry and apply a generous amount of marine-grade sealant to all mating surfaces.

Figure 1. Mounting and sealant application

  1. From inside the vessel, apply a continuous, thick bead of marine-grade sealant all around the base of the protruding transducer stem and anti-rotation bolt threads.
  2. Guide the rubber washer down the transducer cable, and over the threaded section of the transducer stem, compressing the sealant so that the rubber washer sits flush on the hull.
  3. If necessary, apply additional marine-grade sealant to the transducer stem, above the rubber washer.
  4. With the top face pointing upwards, guide the large isolator bush down the transducer cable and over the transducer stem, ensuring it sits flush on the rubber washer.

    Figure 2. Large isolator bush top face

  5. If necessary, apply additional marine-grade sealant to the transducer stem, above the large isolator bush.
  6. Hull nutCable protector Ensuring the cable protector is fitted to the hull nut, guide the nut down the transducer cable, resting the nut on top of the transducer stem.

    Figure 3. Cable protector fitting and removal

    • A — Fitting

    • B — Removal

  7. Remove the cable protector by pulling the 2 tabs away from the back of the hull nut.
  8. Apply a thick bead of marine grade sealant to the bottom face of the hull nut.
  9. Screw the hull nut onto the transducer stem so that it is hand tight.
  10. From outside the vessel ensure that the transducer is pushed fully in to the high speed nose cone.

    It is recommended that a second person holds the high speed nose cone in place whilst the stem and anti-rotation nuts are fully tightened.

  11. Fully tighten, using a 70 mm (2 3/4 inch) wrench (spanner) or large adjustable wrench.

    Ensure that the hull nut is adequately tightened. You should see the sealant protruding from the edges of all applied surfaces.

  12. Place the small internal isolator sleeves over the anti-rotation studs, ensuring they sit flush on the interior of the hull.
  13. If necessary, apply additional marine-grade sealant to the anti-rotation studs, above the small internal isolator sleeves.
  14. Place the small washers over the anti-rotation studs.
  15. If necessary, apply additional marine-grade sealant to the anti-rotation studs above the small washer.
  16. Screw the anti-rotation nuts onto the studs and fully tighten, using a 13 mm (1/2 inch) wrench (spanner) or adjustable wrench.