Raymarine DS400, Owner'S Handbook Manual

Page: 33 / 96

Chapter 2: Installation 23
3. On the outside of the hull, secure the cable against the transom using the
cable clamps. Position a cable clamp 50mm (2") above the bracket and
mark the mounting hole with a pencil.
4. Position the second cable clamp halfway between the first clamp and the
cable hole. Mark this mounting hole.
5. If a hole has been drilled in the transom, open the appropriate slot in the
cable cover. Position the cover over the cable where it enters the hull.
Mark the two mounting holes.
6. At each of the marked locations, use a 3mm or 1/8" bit to drill a hole
10mm (3/8") deep. To prevent drilling too deeply, wrap masking tape
around the bit 10mm (3/8") from the point.
7. Apply marine sealant to the threads of the #6 x 1/2" self-tapping screws to
prevent water from seeping into the transom. If you have drilled a hole
through the transom, apply marine sealant to the space around the cable
where it passes through the transom.
8. Position the two cable clamps and fasten them in place. If used, push the
cable cover over the cable and screw it in place.
9. Route the cable to the instrument being careful not to tear the cable jacket
when passing it through the bulkhead(s) and other parts of the boat. To
reduce electrical interference, separate the transducer cable from other
electrical wiring and the engine(s). Coil any excess cable and secure it in
place with zip-ties to prevent damage.
10. Connect the transducer to the transducer connector on the rear of the fish-
finder.
Checking for Leaks
CAUTION:
When the boat is placed in the water, immediately check for leaks
around the screws and any holes drilled in the hull. Never install a
transducer and leave the boat in the water unchecked for several days.
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