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INSIDE THE HULL MOUNTED TRANSDUCER
Installation Guide
3
| Install the Transducer
1. After marking the location of the transducer, remove the water from inside the hull. Thoroughly
dry the mounting surface.
2. Mix an ample quantity of two-part slow-cure epoxy. Coat the face of the transducer and the
inside of the hull.
3. See the illustrations Transducers with Directional Bias and Transducers without Directional
Bias. Identify your transducer shape to determine how it needs to be oriented inside the hull.
(You will install the transducer in step 4.) It is important to consider the following:
Δ If you have a transducer with directional bias, use the illustration to confirm which end of
the transducer points forward to the bow of the boat.
Δ If you have an angled-style transducer, position the transducer so it transmits straight
down and remains in parallel alignment with the keel.
Δ If you have a puck transducer (round), it does not need to be set in a certain direction
unless it is also an angled-style transducer. See Transducers without Directional Bias.
4. Press the transducer in place with a slight twisting motion to purge any trapped air from
underneath.
5. Weight the transducer so that it does not move while the epoxy is curing.
6. When the epoxy has cured, no water will be necessary inside the hull, and water or spilled
gasoline or oil will not affect the performance of the transducer.
4
| Route the Cable
Use the following instructions to route the cable to the control head.
NOTE: Your boat may have a pre-existing wiring channel or conduit that you can use for the
transducer cable.
1. Route and secure the transducer cable to the control head, avoiding areas where it may be
damaged or interfere with normal boating operations.
CAUTION! Do not cut or shorten the transducer cable, and try not to damage the cable insulation.
Route the cable as far as possible from any VHF radio antenna cables or tachometer cables to
reduce the possibility of interference. If the cable is too short, extension cables are available to
extend the transducer cable up to a total of 50'. For assistance, contact Humminbird Technical
Support.
CAUTION! Do NOT mount the cables where the connectors could be submerged in water or flooded.
If cables are installed in a splash-prone area, it may be helpful to apply dielectric grease to the
inside of the connectors to prevent corrosion. Dielectric grease can be purchased separately from
a general hardware or automotive store.
Excess Cable: If there is excess cable that needs to be gathered at one location, dress the
cable routed from both directions so that a single loop is left extending from the storage
location. Doubling the cable up from this point, form the cable into a coil. Storing excess cable
using this method can reduce electronic interference.
5
| Connect the Cable
Refer to your control head installation guide for additional details.
1. Connect the transducer cable to the transducer port on the control head.
The connector is keyed to prevent reversed installation, and insertion should be easy. Do not
force the connectors into the ports.
If the cable connector is round, hand-tighten the screw nut to secure the cable connection.
Hand-tighten only!
3
530509-8_A
Apply the Epoxy
Transducer Connectors
screw nut
Hexagon-Shaped
Round
Connector
Connector
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