Humminbird 937C COMBO, 937C DF Permanently mount the transducer, Route the cable, Inside the Hull

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Transducer Mounted

Inside the Hull

4.Fill the hull with enough water to submerge the transducer body. Use a sand-filled bag or other heavy object to hold the transducer in position. The transducer cannot transmit through air, and the water purges any air from between the transducer and the hull, and fills any voids in the coarse fiberglass surface.

5.View the sonar signal on the display and compare against what you observed in Step 2, making sure that the boat is in the same location as it was during your observations in Step 2. If the results are comparable, move on to Step 6. Otherwise, locate a new position in the hull and repeat Steps 3 through 5.

Permanently mount the transducer:

1.Make sure the position of the transducer is marked.

2.Remove the water from inside the hull and thoroughly dry the mounting surface. If the surface is excessively rough, it may be necessary to sand the area to create a smooth mounting surface.

3.Slowly and thoroughly mix an ample quantity of two-part slow cure epoxy. Avoid trapping air bubbles.

6.Run the boat at various speeds and water depths while observing the screen on the control head. If depth performance is required, test the transducer in water at the desired depth. If the performance is acceptable, move on to Step 7. If the performance is not acceptable, repeat Steps 3 through 6.

7.Once you have determined the best mounting location using the above steps, mark the position of the transducer.

Route the cable:

1.Once the mounting location is determined and you have marked the position of the transducer, route the cable from the transducer to the control head.

4.Coat the face of the transducer and the inside of the hull with epoxy.

5.Press the transducer into place with a slight twisting motion to purge any trapped air from underneath, keeping the end of the transducer that has the mounting ears pointed forward, towards the bow of the boat.

NOTE: Proper operation requires the end of the transducer that has the mounting ears to face towards the bow of the boat.

6. Weight the transducer so that it will not move while the epoxy is curing.

NOTE: When the epoxy cures, no water is necessary inside the hull.

7.If you unplugged the transducer cable at the beginning of this procedure, plug it back into the control head.

NOTE: Neither water, spilled gasoline, nor oil will affect the performance of the transducer.

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Contents Page Thank YOU Table of Contents Menu System Start-Up Options Menu Contact Humminbird Dualbeam Plus Sonar Series IntroductionHOW the 900 Series Works Single Beam SonarMulti-Media Card MMC/SD Slot MULTI-MEDIA Card MMC/SD Slot900 Series has a wide variety of configurations Accessory BUSInstallation Overview Accessory BusGimbal Mounting the Control Head Control Head InstallationBasic installation tasks that you must perform include Mounting Screws Washer Gimbal Mounting Bracket Cables Routed Near Mounting Bracket Back of Control Head IN-DASH Mounting the Control Head Temperature Plug Cable Connector Assembly to Back of Control HeadConnecting the Control Head Power Cable to the Boat Transducer InstallationRoute the transducer cable Transom Transducer InstallationTo determine transducer mounting location Determine transducer mounting locationMoves clockwise as the boat moves Corner of the templateNormal Cavitation Confirm that the pivot angle has not changedAttaching the Bracket To attach the pivot to the transducer Dual frequency unitForce is necessary to pivot the assembly Order to gain access to the mounting screws,To route the transom transducer cable all transducers Determine the transducer mounting location Inside the Hull Transducer InstallationTrial installation Inside the Hull Permanently mount the transducerRoute the cable Make sure the position of the transducer is markedTest and Finish the Transducer Installation Trolling Motor Transducer InstallationFollow these steps to stem mount the GPS receiver Stem Mounting with AN Existing 1 14 Thread StemIf you have… Then use Hand-tighten onlyTo the cable as shown Access Under Mounting LocationFinish Routing the Cable and Check GPS Receiver Operation No Access Under Mounting LocationHand tighten only Speed Accessory InstallationInstall the Speed accessory Rotating Retaining Axial Clip to Remove Paddlewheel Cleaning the Speed accessoryRouting the speed cable to the control head To test the installation Testing the System InstallationSeries 937c DF Combo Title Screen Getting Started Using Your 900 SeriesPowering UP the Control Head Triplog WHAT’S on the Sonar DisplayBottom Presentation Understanding Sonar HistoryReal Time Sonar RTS Window MARK/GOTO key Info key Zoom +/- key POWER/LIGHT KEYKEY Functions Fishing requirements see View Menu Tab View KEYMenu KEY WAY Cursor Control KEYMARK/GOTO KEY View Preset KeysExit KEY Info KEYNavigation views ViewsViews and Readouts Sonar viewsSonar View Sonar ViewSonar Zoom View Split Sonar View Sonar Zoom ViewBird’s Eye View BIRD’S EYE ViewChart View with Active Cursor Chart/Bird’s Eye Combo View1112 Chart/Sonar Combo ViewChart View with Cursor Present Chart OrientationNavigation Waypoints, Routes and Tracks To save the marked position as a waypointNavigate to a Waypoint or Position ADD a Waypoint Target or Trolling Grid Chart View with TargetChart View with Grid Save or Clear a Current Track Press Menu Menu SystemStart-Up Options Menu Sonar Tab, Normal ModeSTART-UP Options Menu Simulator Exit Normal operation by powering your 900 Series offNormal Operation SimulatorSelf Test Accessory TestSelf Test Accessory Test System StatusSonar X-PRESS Menu GPS Diagnostic ViewSplit Position Active SideSensitivity Lower Range To adjust the Upper RangeTo adjust the Lower Range Upper RangeSonar Colors Chart SpeedZoom Level Bottom LockNavigation X-Press Menu Highlight Split Position on the Navigation X-Press MenuSave Current Route Save Current TrackClear Current Track Remove Grid Cancel NavigationRemove Target Highlight Beam Select on the Sonar main menu Sonar Menu TABBeam Select To use Beam SelectTo turn Fish ID+ on or off To change the Fish ID Sensitivity settingFish ID+ Fish ID SensitivityTo change the Zoom Width To adjust the Bottom ViewBottom View Zoom WidthNoise Filter KHZ SensitivityDepth Lines Surface ClutterTransducer Select MAX DepthWater Type Navigation Menu TAB Temperature GraphColor BAR Waypoints TracksRoutes Track MIN Distance North ReferenceTrolling Grid Rotation Trackpoint IntervalDelete ALL NAV Data MAP DatumExport ALL NAV Data To change the Map Borders setting Chart Menu TABChart Detail Level To change the Chart Detail Level settingShaded Depth LAT/LON GridSpot Soundings Clear MAP Offset Alarms Menu TABSET MAP Offset Temp Alarm Depth AlarmFish ID Alarm LOW Battery AlarmTo change the Off Course Alarm setting OFF Course AlarmArrival Alarm Drift AlarmHighlight Alarm Tone on the Alarms main menu Alarm ToneTo change the Alarm Tone setting Units Depth Setup Menu TABTo change the Units Depth setting To change the Units Temp settingLanguage User ModeUnits Distance Units SpeedTo Restore Defaults Triplog ResetRestore Defaults To Reset TriplogTo Select Readouts Default Sonar View Customized Sonar ViewLocal Time Zone Depth OffsetTemp Offset Speed CalibrationPosition Format Daylight Saving TimeTo turn Nmea Output on or off Nmea OutputSonar Following Nmea sentences are outputHighlight the View main menu tab Accessories Menu TABViews Menu TAB To Change the View Status of Any ViewSeries Defaults to Simulator with a Transducer Attached TroubleshootingSeries Doesn’t Power Up Problem Possible Cause Display ProblemsBoat’s engine Finding the Cause of NoiseOther electronic devices Noise re-appearsHumminbird Service Policy Year Limited WarrantyFor IN-WARRANTY service, complete the following steps Returning Your Unit for ServiceSeries Accessories Power Output SpecificationsAlign with transom Appendix aPlace on bottom of hull Appendix B Contact Humminbird
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