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1. MOUNTING
1.3.2
Transom mount transducer
The optional transom mount transducer is very commonly employed, usually on rela-
tively 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.
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 (520) in the mounting location.
2. Coat the threads of the self-tapping screws (M514) for the transducer with ma-
rine sealant for waterproofing. Attach the transducer to the mounting location with
the self-tapping screws.
Note: DO NOT overtighten screws; they may be damaged.
3. Adjust the transducer position so the transducer faces right to the bottom. If nec-
essary, 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. Tape the location shown in the figure below. Fill the gap between the wedge front
of the transducer and transom with epoxy material to eliminate any air spaces.
5. After the epoxy hardens, remove the tape.
Transom
Transom
Stripe
525-5PWD mounting locations
φ5×20
M5×14
No.1
Bracket
Transducer
2 to 5°
Parallel with hull
Less than 10°
Mount at the stripe.
Over 10°
φ5×20
Ship's bottom
5°
Tape
Hull
Epoxy materia
Epoxy material
11
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