Furuno GP-7000F User Manual
Page 21
15
Adjusting
1. Using a straight edge, sight the underside of the sensor relative to the underside of the hull.
The stern of the sensor should be 1-3 mm (1/16-1/8") below the bow of the sensor or parallel
to the bottom of the hull.
Sensor position and transom angle
Note: Do not position the bow of the sensor lower than the stern because aeration will occur.
2. To adjust the sensor's angle relative to the hull, use the tapered plastic shim provided. If the
bracket has been temporarily fastened to the transom, remove it. Key the shim in place on the
back of the bracket.
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
tapered end up.
3. If the bracket has been temporarily fastened to the transom, remove it. Apply a marine sealant
to the threads of the two #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.
11
°
transom angle
NO SHIM
12
°
-18
°
transom angle
NO SHIM
2
°
-10
°
transom
angle
19
°
-22
°
transom
angle
shim with
taper up
shim with
taper down
parallel
parallel
parallel
slight
angle
angle
too steep
angle
reversed
YES
NO
NO
YES
YES
YES