Raytheon HSB L755, Owner'S Handbook Manual

Page: 53 / 224

Chapter 2: Installation 2-23
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Attaching the transducer
1. From outside the hull, thread the cable through the mounting hole.
2. Push the stem of the transducer (with the fairing in place) into the mounting
hole using a twisting motion to squeeze out excess sealant. If a fairing is
used, be sure the button on the fairing is mated with the recess in the trans-
ducer, the arrow on the fairing is pointing forward, and the assembly is
aligned parallel to the centerline of the boat.
3. From inside the hull, slide the backing block onto the transducer cable and
stem, seating it firmly against the hull (see Figure 2-18).
CAUTION:
Be careful to avoid cross threading the cap nut.
4. Screw the hull nut in place and tighten it with slip-joint pliers.
Wood hull – Allow for the wood to swell.
Metal Hull – Be sure the top of the isolation sleeve is below the top of the
backing block to prevent the sleeving from interfering with tightening the
hull nut.
Figure 2-18: Fore View of Transducer Installation
Cable
Safety ring
Safety chain
Pull ring
Retaining pin
Cap nut
Stem
Safety wire
Hull nut
Backing block
Fairing
Hull
Transducer
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