Eagle Electronics 320 manual Internal tooth washer TMB-S bracket Bolt Nut Flat washer

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Caution:

If you drill a hole in the transom for the cable, make sure it is lo- cated above the waterline. After installation, be sure to seal the hole with the same marine grade above- or below-waterline seal- ant used for the mounting screws.

7.Make a test run to determine the results. If the bottom is lost at high speed, or if noise appears on the display, try sliding the trans- ducer bracket down. This puts the transducer deeper into the water, hopefully below the turbulence causing the noise. Don't allow the transducer bracket to go below the bottom of the hull!

TROLLING MOTOR BRACKET INSTALLATION (single-frequency only)

1.Attach the optional TMB-S bracket to the transducer as shown in the following figure, using the hardware supplied with the transducer. (Note: The internal tooth washer is supplied with the TMB-S.)

Internal tooth washer	TMB-S bracket
Bolt

Nut

Flat washer

Attach motor mounting bracket to transducer.

2.Slide the adjustable strap supplied with the TMB-S through the slot in the transducer bracket and wrap it around the trolling motor. Po- sition the transducer to aim straight down when the motor is in the water. Tighten the strap securely.

3.Route the transducer cable alongside the trolling motor shaft. Use plastic ties (not included) to attach the transducer cable to the troll- ing motor shaft. Make sure there is enough slack in the cable for the motor to turn freely. Route the cable to the sonar unit and the trans- ducer is ready for use.

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Contents FishMark 320 SeaFinder 320DF Page Table of Contents Fish I.D. Fish Symbols & Depths How this manual can get you out on the water, fast Read Me FirstGeneral Figuration and installation, bottom composi How Sonar Works How to use this manual typographical conventionsPage Page Preparations Transducer InstallationDual-frequency transom installations Single-frequency transom installationsSingle-frequency trolling motor installations Shoot-through hull installationsGood and poor transducer locations Transom Transducer centerline Hull bottom Dot Transom Transducer Assembly and MountingAlignment Alignment lettersPositions TransducerRatchets Metal Nut Washer Rubber Bolt Flat washer Lock washer Nut Washers BoltTransom Bottom HullFlat-bottom hull Deep-vee hull Internal tooth washer TMB-S bracket Bolt Nut Flat washer Transducer aimed Partial fish archesToo far back Full fish arch Proper transducer angleSHOOT-THRU-HULL Preparation Transducer location High speed Trolling speed Spread epoxy here Sand this surface Speed/Temperature SensorsRear view Sonar unitGood location Transom Bottom of hull Power ConnectionsOptional power off switch for Power c able Accessory Transducer Cable Sonar unit Rear view Power/transMounting the Unit Bracket, In-Dash or Portable Ducer socketFront 173.9 23.4 137.9 157.9 Millimeter 56.9 Inch 72.9113.5 Millimeters Inches 146.5Face Cover Cell batteryKeyboard Basic Sonar OperationPower/lights on and off Menus Main Menu Commands Sonar Menu Commands Pages Sonar Page, showing full sonar chart mode. bar graph Page Basic Sonar Quick Reference Sonar Operations Page Important Tip To Restore Factory SettingsPage Page Sonar Options & Other Features Alarms To adjust and turn on the shallow alarm To adjust and turn on the deep alarmTo adjust and turn on the zone alarm Brightness To turn the fish alarm onCalibrate Speed Chart SpeedContrast Depth CursorDepth box To switch to Manual Depth Range Depth Range AutomaticDepth Range Manual FasTrack Fish I.D. Fish Symbols & DepthsTo turn Auto Depth Range on again Bar graphPage Page FishTrack Symbols with FishTrack depthsFishReveal Press → ↓ to Fish ID DepthsentexitexitPage Fish Not Visible Fish arch Fish arches Frequency Change Transducer Frequency SeaFinder 320DF onlyGrayline Grayline Hard Bottom Muddy bottom Hard Fish nearNoise Rejection HyperScrollOverlay Data Hard Muddy bottom bottom GraylineTo change displayed data font size To turn off displayed dataPing Speed & HyperScroll Page Pop-up Help Reset OptionsReset Water Distance Screen Contrast and BrightnessSensitivity & Auto Sensitivity Page Set Keel Offset Press MENUMENU↓ to SET Keel Offsetent Set Language Software Version InformationPress MENUMENU↓ to Software Infoent Sonar Chart Display Options Sonar Color ModePage Page Customizing the Digital Data/Chart Screen Sonar Simulator Stop ChartPress ↓ or ↑ to select clarity levelEXITEXITEXIT Surface ClarityZoom & Zoom Bar Units of MeasureZoom Pan Page Troubleshooting Page Noise Page Page Page Supplemental Material How to Obtain Service… Accessory Ordering Information for all countries Visit our web site

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