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GP1670F_1870F Operator's Manual - Furuno USA

GP1670F_1870F Operator's Manual - Furuno USA

GP1670F_1870F Operator's Manual - Furuno USA

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13. INSTALLATION19°-22° transom angle (small aluminum and fiberglass boats): Position theshim with the tapered end up.2º-10ºtransomangle11º transom angleNO SHIM19º-22ºtransomangleshim withtaper downshim withtaper upYES YES YESparallel parallel parallel12º-18º transom angleNO SHIMNO YESNOanglereversedslightangleangle toosteep3. If the bracket has been temporarily fastened to the transom, remove it. Apply amarine sealant to the threads of the three #10 x 1-1/4” self-tapping screws to preventwater seeping into the transom. Screw the bracket to the hull. Do not tightenthe 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 avoidincreasing drag, spray, and water noise and reducing boat speed.5. Using the vertical adjustment space on the bracket slots, slide the sensor up ordown to provide a projection of 3 mm (1/8”). Tighten the screws.Cable coverCableclamp50 mm (2")Hull projection 3 mm (1/8")13-10

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