Lowrance electronic Lowrance Fish-finding Sonar & Mapping GPS LMS-520C - Manual (Page 37)

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4. Most people can get good results by following steps 1 through 3, so this
step is optional. If you want to make an extra effort to be absolutely
sure that your selected location will work under all conditions, make a
test run with the boat on plane and observe the bottom signal. You'll
need to figure some way to prop the transducer into position while you
make your test run. (A brick or two might be sufficient to hold it in
place.)
5. When you're satisfied with a location, mark it and proceed with
the installation.
Shoot-thru-hull Installation
If you are installing the transducer on a hull with floatation material
sandwiched within the hull, refer to the text "Hulls With Flotation Ma-
terials" beginning on page 24.
1. Make sure the area is clean, dry and free of oil or grease, then sand
both the inside surface of the hull and the face of the transducer with
100 grit sandpaper. The sanded hull area should be about 1-1/2 times
the diameter of the transducer. The surface of the hull must be flat
so the entire transducer face is in contact with the hull prior to bond-
ing. After sanding, clean the hull and transducer with rubbing alco-
hol to remove any sanding debris.
Epoxy transducer to hull.
Spread epoxy here
Sand this surface
(unit's face)
Orient the Skimmer
with the nose facing
the bow of the boat.
To bow
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