Raytheon HSB L760, Owner'S Handbook Manual

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2-24 HSB Series L755 and L760 Fishfinder
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5. Being sure the valve assembly is seated firmly in the housing, carefully
screw the cap nut in place. Hand tighten it only; do not over tighten.
6. Remove any excess sealant on the outside of the hull to ensure smooth
water flow over the transducer.
7. After the sealant cures, inspect and lubricate the O-rings on the paddle
wheel insert with silicone grease or petroleum jelly (see Figure 2-19).
8. Slide the paddle wheel insert into the valve assembly with the arrow on the
top pointing forward until it is fully seated (the insert fits one way only).
Take care not to rotate the outer housing and disturb the sealant.
9. Slide the center ring of the safety chain onto the cable. Slide the retaining
pin in place and reattach the safety ring (see Figure 2-18).
WARNING:
Always attach the safety wire to prevent the insert from backing out in the
unlikely event that the cap nut fails or is screwed on incorrectly.
10.Wrap one end of the safety wire tightly around the stem of the housing and
twist it together with the long end. Lead the wire straight up and through
one eye in the cap nut, then through one of the safety rings. Loop the wire
through the pull ring and twist it securely to itself.
11. 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. Coil any excess cable and secure it in
place using tie-wraps to prevent damage.
Refer to Section 2.8, System Connections to connect the transducer to the
display unit.