4Fishnder 300C Installation Instructions
Mounting the Transducer on a Trolling Motor
To mount the transducer on a trolling motor:
1.Slidethelargecabletiethroughtheslotonthetransducermount,withtheridgesofthecabletiefacingup,untilequallengthsofcabletie
extendonbothsidesofthemount.
NOTE: For cold water, or heavy timber or debris areas, a metal 4–5" (100–130 mm) worm-gear clamp is recommended.
2. Positionthemountgasketonthecurvedtopofthetransducermount.
3.Placethetransducerassemblyagainstthemotorbodyofthetrollingmotor,withthefrontofthetransducerpointedawayfromthe
trolling-motorpropeller.
4.Wrapthetwoendsofthecabletiearoundthemotorbody.Placethepointedendofthecabletiethroughthefastenerholeontheopposite
endandpullitthroughuntilitissnugbutnottight.(Thecabletieclickswhenyoupullit.)
5. Positionthetransducersothatitisparallelwiththebottomwheninuse,andmakesurethegasketisalignedproperly.Pullthecable-tie
enduntiltight.Trimofftheexcessifnecessary.Tightenthe10-32lockingnutuntilittouchesthemountingbracket,andthentighten1/4turn
more.(Donotovertighten.)
6.Routethe30-foot(9m)transducercableusingthesuppliedcabletiestosecurethecabletothemotorshaft.Youcanlltheforward-facing
portion(exceptthecable-tiepocket)ofthetransducermountwithsealanttoavoidaccumulatingdebris.
Cable tie
Front of the transducer
Mounting the Transducer on a Transom
When selecting a transom-mount location, consider the following for optimal performance:
For your sonar to operate properly, the transducer must be located in calm water.
Mount the transducer as close to the center of the boat as possible.
DO NOT cut the transducer lead. (This voids your warranty.)
DO NOT mount the transducer in locations where it might be jarred when launching, hauling, or storing.
DO NOT mount the transducer in the path of the propeller on single-drive boats. The transducer can cause cavitation that can degrade the
performance of the boat and damage the propeller. On twin-drive boats, mount the transducer between the drives, if possible.
NOTE: DO NOT mount the transducer behind strakes, struts, ttings, water intake or discharge ports, or anything that creates air bubbles or causes the
water to become turbulent. The transducer must be in clean (non-turbulent) water for optimal performance.
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