Furuno GP-1670F Operator's Manual page 159

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 provide a projection of 3 mm (1/8"). Tighten the screws.
Hull projection 3 mm (1/8")
How to attach the sensor to the bracket
1. If the retaining cover near the top of the bracket is closed, open it by depressing
the latch and rotating the cover downward.
Step 1
Latch
Pivot
arm
Retaining
cover
Step 3
2. Insert the sensor's pivot arms into the slots near the top of the bracket.
3. Maintain pressure until the pivot arms click into place.
4. Rotate the sensor downward until the bottom snaps into the bracket.
5. Close the retaining cover to prevent the accidental release of the sensor when
your boat is underway.
How to route the cable
Route the sensor cable over the transom, through a drain hole, or through a new hole
drilled in the transom above the waterline.
Never cut the cable or remote the connector; this will void the warranty. Always wear
safety goggles and a dust mask.
Cable cover
Cable
clamp
50 mm (2")
Step 2
Slot
Step 4
13. INSTALLATION
13-11