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4. INSTALLATION
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Note: Do not over-stress the stuffing tube and
locknut through excessive tightening, since
the wood block will swell when the boat is
placed in the water. It is suggested that the
nut be tightened lightly at installation and re-
tightened several days after the boat has
been launched.
Transducer preparation
Before putting the boat in water, wipe the face
of the transducer thoroughly with a detergent
liquid soap. This will lessen the time neces-
sary for the transducer to have good contact
with the water. Otherwise the time required for
complete "saturation" will be lengthened and
performance will be reduced.
DO NOT paint the transducer. Performance
will be affected.
4.4 Transom Mount
Transducer
The optional transom mount transducer is
very commonly employed, usually on relative-
ly small I/O or outboard boats. Do not use this
method on an inboard motor boat because
turbulence is created by the propeller ahead
of the transducer.
DO NOT overtighten screws; they may be
damaged.
525-5PWD mounting locations
Select the installation method depending on
the rise angle of the hull.
Installation procedure
A suitable mounting location is at least 50 cm
away from the engine and where the water
flow is smooth.
1. Drill four pilot holes for self-tapping screw
(5x20) in the mounting location.
2. Coat the threads of the self-tapping
screws (5x14) for the transducer with sili-
cone sealant for waterproofing. Attach the
transducer to the mounting location with
the self-tapping screws.
3. Adjust the transducer position so the
transducer faces right to the bottom. If
necessary, to improve water flow and
minimize air bubbles staying on the trans-
ducer face, incline the transducer about
5° at the rear. This may require a certain
amount of experimentation for fine tuning
at high cruising speeds.
Flat Washer
Rubber Washer
Fairing
Block
Hull
Deep-V Hull
Hull
Flat Washer
Rubber
Washer
Cork
Washer
Flat Hull
Transom
Transom
Stripe
Parallel with hull
Mount at the stripe.
Less than 10°
Over 10°