2 Fishfinder 160C Owner’s ManualINSTALLATION INSTRUCTIONS > U NIT INSTALLATIONUnit InstallationChoose a location that provides optimal viewing and allows easyaccess to the unit’s keypad. Select a mounting surface strong enoughto support the weight of the unit and protect it from excessivevibration or shock. DO NOT mount the bracket in a location wherethe unit is exposed to extreme temperature conditions. Wheninstalling the mounting bracket, be sure to allow room for theconnection and routing of the power cable.Tool List (not included)—drill, screwdriver (Phillips or standard),three #8 pan-head machine bolts with matching nuts and washers,and a 5/32" drill bit, OR three #8 pan head self-tapping screws, anda 1/16" drill bit.To mount the bracket assembly:1. Using the swivel base as a template, mark the location of thethree mounting holes.2. If securing the base with machine bolts, drill three 5/32" holesat the locations you marked. If securing the base using self-tapping screws, drill 1/16" starter holes at the locations youmarked. Generally, starter holes should be no deeper thanhalf the screw length.3. Secure the swivel base with three bolts or screws. DO NOTOVERTIGHTEN.4. Attach the swivel bracket and secure it with the short knob.Mounting HolesSwivel BaseSwivel Bracket and BaseShort Knob