7
1.4 Inside-hull Mount Transducer 520-5PSD, 520-5MSD
Necessary tools
You will need the following tools:
• Sandpaper
(#100)
• Silicone
sealant
• Silicone
grease
Remarks on installation
• Turn off the engine and anchor the boat while installing the equipment.
• Install the transducer in the engine room.
Selecting the mounting location
Keep the following points in mind when selecting a mounting location:
• The mounting location should be where the hull is of single-hull thickness and is void of
air or flotation materials other than solid fiberglass between the transducer face and the
water.
• Do not place the transducer over hull struts or ribs which run under the hull.
• Avoid a location where the rising angle of the hull exceeds 15°, to minimize the effect of
the boat’s rolling.
• You will finalize the mounting location through some trial and error. The procedure for
this is shown later.
50cm
50cm
15cm
15cm
1/3
1/2
Mounting location
for transducer
Center line
Figure 1-10 Inside-hull transducer mounting location
