Raymarine L470 instruction manual Mounting the Transom-Mount Transducer, Installation

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Mounting the Transom-Mount Transducer

measured from the bottom of the transom.

If considering the Sidelooker option, look for a mounting location where the Sidelooker array will not be blocked by the engine housing or other mounted hardware.

If the boat will be carried on a trailer, be sure the transducer will not hit any rollers, bunks or fittings on the trailer.

Mounting the Transom-Mount Transducer

1.On a boat with a fiberglass hull, the leading edge of the transducer should extend 1/8" (3.2 mm) to 1/4" (6 mm) below the bottom edge of the hull. See Fig. 2-5. On an aluminum hull, the transducer should extend a bit more – 1/4" (6 mm) to 3/8" (9 mm). If the boat will be operated at high speeds, the transducer may be mounted closer to the centerline of the hull.

2.The lower surface of the transducer should tilt down toward the rear at a slight angle (2° to 5°). The mounting bracket includes a wedge. Depending on the angle of the transom on your boat, you may need this wedge to get the correct angle for the bottom of the transducer.

3.Looking at the rear of the boat, be sure the bracket is vertical (perpendicular to the water line).

4.Hold the bracket (and the wedge, if used) against the transom and trace the positions of the screw slots.

5.Remove the bracket. See Fig. 2-6. The screws in the outer slots should be placed about 1/4" (6 mm) up from the bottom of each slot. The screw in the center slot should be placed 1/4” (6 mm) down from the top. (This will allow you to adjust the bracket up or down a bit.) Drill pilot holes 3/4" (19.1 mm) deep. Use a 9/64" (3.6 mm) drill bit. To prevent drilling too deeply, wrap masking tape around the drill bit about 7/8" (22 mm) from the tip. Drill in only as far as the tape marker.

If you are attaching the bracket to a fiberglass hull, you can minimize any surface cracking of the gel coat. Before drilling each pilot hole, drill a shallow hole (chamfer) at each location about 1/16" (1.5 mm) deep. Use a 1/4" (6 mm) drill bit.

6.Attach the bracket to the hull using the panhead screws with flat washers. Before you tighten the screws, apply a good-quality marine sealant to the pilot holes. This will protect the hull from water penetra- tion. Do not tighten the screws completely yet.

Installation

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Contents Instruction Manual RaymarineFishFinder L470 Operating Instructions ContentsInstallation Introduction4 Setup Instructions Specifications Maintenance and TroubleshootingPage List of FiguresFrequency Menu Item viii1 - Introduction About the FishFinder L470Introduction Standard Transducers Optional AccessoriesSystem Components Standard EquipmentTransducer switch box select between two L470 2 - Installation InstallationAbout the Transducer Use an in-hull transducer if Selecting the Correct Type of TransducerUse a transom-mount transducer if Use a thru-hull transducer ifUse a Sidelooker transducer Assembling the Transducer BracketPositioning the Transom-Mount Transducer Use a trolling motor transducer ifTransducer in released position Transducer Mounted on TransomTransducer Bracket Side View Allow a clearance of at least 10 inches 254 mm 10 254 mmNo!No!No Correct Mounting PositionMounting the Transducer Mounting the Transom-Mount Transducer 3. Remove the two screws and the bracket covering the paddle wheels Installation Notes - Thru-Hull Transducer Installation Notes - In-Hull Transducer Installation Notes - Trolling Motor Transducers Installation Notes - Transducer for Speed and Temperature Only EMC Installation GuidelinesSuppression Ferrites Dismounting the Display Unit Mounting the Display Unit - Standard Mount210 mm Dimensions2-25/32 70 mmFlush-mount Installation Mounting the Display Unit - Flush MountDisassembling from Bracket Installing the Transducer CableInstalling Cable on Transom Cable feed-thru cap Cable clamp 1 25 mm Hull projectionsFiberglass 1/4 6mm Aluminum 1/2 13 mm Installing the Transducer Cable - Sidelooker Option Installing the Transducer CableInstallation with Separate Speed and Temperature Sensors Making the DC Power Connections DC Power Connections DC 12V connector to battery T/D connector to transducer RED BLACKRF ground Calibrating the Sensors higher value for Speed Cal. If the display unit is reading high, use a smaller number for Speed Cal. You may enter any value between 75 and 3 - Operating Instructions Controls on Display PanelOperating Instructions Up and down arrows - and Left and right arrows - andCLEAR Setup Memory Turning the Power On and OffLamp/Contrast Menu See page Operating PagesMode Functionis turned on Only if Sidelooker featureFishFinder Page Shallow alarm setAuto frequency on Transducer frequency Top of display Fish alarm set Center of display From the System Setup Menu, you can turn this item off orThis entry shows the speed of the boat through the water Bottom of display Choosing a Frequency An arch-shaped image indicates a fish Fish IndicationsWhen the boat is moving very fast 50 kHz 200 kHzBottom Indications Bottom Conditions Hard Sand Soft MudRocks WindowContents Window PageOption A Option C Option E Option G Option B Option D Option F Option HOptions for Window Page Sidelooker Page Once the Sidelooker feature has been turned on, you can reach the Sidelooker page easily. Press the or buttons on the Page Control Pad until the Sidelooker Page appears. The unit will present a display similar to Fig Here are the special items on this display Bottom/Shore Digital Page button. The Log may be reset to zero from the Performance Modes Zoom ModeA-Scope Mode Bottom Lock ModePerformance Modes Zoom ModeZoom display Zoom magnification A-Scope Bottom Coverage Mode Bottom coverage Bottom Lock Mode the selected range, then Bottom Lock will not display the bottom image Fig.4-1 4 - Setup InstructionsThe Setup Menu Setup InstructionsRange Setting Setup InstructionsSidelooker Sensitivity Setting Auto sensitivity Changing the Chart Speed Setting Chart Speed SettingFrequency Setting AUTO frequency Resetting the Log Fig.4-8 System Setup MenuThe unit can present the display information in one of seven different languages. English is the default language whichSetup Instructions For example, if the temperature reading on Shallow AlarmCLEAR water. You can silence the buzzer again by pressing the conditions occurs shallow, deep, or fish alarm. For theUnits used for speedUnits used by Codebutton to leave this display, and store the Auto Zoom setting Setup Menus for Zoom ModeZoom Select Menu feature is particularly useful when fishing for species of fishZoom Screen Split/Full Menu Item Bottom Lock Range Menu Item Setup Menus for Bottom Lock ModeBottom Lock Split/Full Menu Item Setup Menu for Window Page Setup Instructions for Sidelooker Resetting from the Digital PageSidelooker Range Menu Item Sidelooker Sensitivity Menu Item Sidelooker Chart Speed Menu ItemDisplay Option Information Shown Sidelooker View Menu ItemCombining Displays Resetting the Unit to Factory Defaults Default - US model Default - Europe model Default SettingsMaintenance and Troubleshooting 5 - Maintenance and TroubleshootingCleaning Instructions Troubleshooting SuggestionsThe display unit “freezes” temporarily or permanently The FishFinder does not display fish arches The display unit does not see the bottom or fishThe display unit shows lots of background “noise” The depth setting flashes oftenServicing a Thru-Hull Transducer How to Contact RaymarineFor marine product and services information For accessories and partsFor technical support For product repair serviceRaymarine in Europe Prepaid Return ServiceMaintenance and Troubleshooting 6 - Specifications SpecificationsGeneral Information Feet, fathoms, meters FishFinder FunctionsConnectors Connector DiagramsGlossary Glossary of TermsStatute mile 5280 ft Nautical mile 6076 feetWarranty Limitations Limited Warranty Certificate