Furuno Ls4100 - Manual (Page 33)

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Note:
If necessary, to improve water
flow and minimize air bubbles
staying on the transducer face,
incline the transducer about 5° at the
rear. This may require a certain
amount of experimentation for fine
tuning at high cruising speeds.
4. Fill the gap between the wedge front
of the transducer and transom with
epoxy material to eliminate any air
spaces.
No.1 M5 x 14
5 x 20
5 x 20
2 to 5
°
Tape
Hull
Transom mount transducer,
mounting flush with hull
Installing the transom mount
transducer on a deep-V hull
This method is employed on deep-V
hulls and provides good performance
because the effects of air bubbles are
minimal. Install the transducer parallel
with water surface; not flush with hull. If
the boat is placed on a trailer care must
be taken not to damage the transducer
when the boat is hauled out of the water
and put on the trailer.
5 x 20
No. 2
M5 x 14
5 x 20
Transom mount transducer,
mounted projecting from hull
525-5PWD
Choose the installation method
depending on the rise angle of the hull.
Transom
Transom
Stripe
over 10
Parallel with hull
Mount at the stripe.
less than 10
525-5PWD mounting location
Installing the 525-5PWD
Referring to “Installing the 520-5PWD”
in the left column for mounting of the
bracket and the figure shown on the top
of next page, install the 525-5PWD to
the transom.