Furuno BBDS1, Operator'S Manual

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1. MOUNTING
11
2°-10° transom angle (stepped transom and jet boats): Position the shim with the tapered end
down.
19°-22° transom angle (small aluminum and fiberglass boats): Position the shim with the ta-
pered end up.
3. If the bracket has been temporarily fastened to the transom, remove it. Apply a marine sealant
to the threads of the three #10 x 1-1/4" self-tapping screws to prevent water seeping into the
transom. Screw the bracket to the hull. Do not tighten the screws completely at this time.
4. Repeat step 1 to ensure that the angle of the sensor is correct.
Note: Do not position the sensor farther into the water than necessary to avoid increasing
drag, spray, and water noise and reducing boat speed.
5. Using the vertical adjustment space on the bracket slots, slide the sensor up or down to pro-
vide a projection of 3 mm (1/8”). Tighten the screws.
2°-10°
transom angle
Shim with
taper up
parallel
11°transom
angle
No shim
parallel
19°-22°
transom angle
Shim with
taper down
parallel
12°-18°
transom angle
Slight angle,
no shim
Cable cover Cable cover
Cable
clamp
Hull projection 3 mm (0.12”)
50 mm (2.0”)