Fishfinder 160C Owner’s Manual 3INSTALLATION INSTRUCTIONS > TRANSDUCER INSTALLATIONTo install the unit on the mounting bracket:1. Align the slot on the back of the unit with the long mountingknob and slide into place. It may be necessary to adjust thelong knob to spread the bracket arms apart. (Turn counter-clockwise to widen the bracket arms, clockwise to tighten.)2. Adjust the unit angle and tighten the long mounting knob untilsnug.3. Tilt the unit by loosening the long knob on the right side of thebracket assembly.4. Rotate the entire bracket by twisting it left or right. (NOTE:You will hear clicks as you turn the bracket.)5. Tighten all knobs when the viewing angle you want isobtained.Transducer InstallationTo assemble the transducer:1. Insert the rubber washer and plastic spacer in the transducerat the same time. DO NOT lubricate the rubber washer.2. Route the cable toward the back and slide the transducer intothe mounting bracket.3. Place a 5 mm flat washer on the 10-32 x 1.75" screw andinsert the screw through the mounting bracket, spacer, andrubber washer.4. Place the remaining 5 mm flat washer on the exposed end,and install the 10-32 lock nut finger tight. The transducer istightened further after installation on the boat.