Humminbird 937C COMBO Routing the speed cable to the control head, Cleaning the Speed accessory

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Routing the speed cable to the control head:

1.You may route the cable over the top of the transom, or drill a 5/8” (16 mm) diameter hole in the transom directly above the module and above the waterline to route cable through. Use the cable clamps provided to secure the cable to the transom of the boat. If you use a through-hole, then also use the included escutcheon plate to dress the hole.

NOTE: On fiberglass hulls, it is best to start with a smaller drill bit and use progressively larger drill bits to reduce the chance of chipping or flaking the outer coating.

2.All mounting screws require a 5/32” (13.5 mm) pilot hole drilled approximately 5/8” (16 mm) deep. Additionally, seal any hole drilled in the transom of the boat with marine-grade silicone sealant (not included).

3.Route the cable to the control head, and insert the connector into the appropriate slot. Use the connector designated for accessories on the control head.

4.If the connections are correct, the control head will begin displaying boat speed information immediately (assuming that the control head is powered on and the boat is moving). If the speed sensor fails to read properly at high speeds, adjust the height of the module on the transom.

Cleaning the Speed accessory:

1.You should periodically remove the paddlewheel from the housing and clean it to remove growth resulting from the marine environment, as a clean paddlewheel results in more accurate readings.

NOTE: This procedure should only be performed when the boat is not running, and is normally performed when the boat is out of the water.

Rotating Retaining Axial Clip to Remove Paddlewheel

2.Clean the paddlewheel by disengaging the axial clip from the housing wedge and rotating it forward. Once you have rotated the axial clip, remove it from the housing by sliding it away from the holes in the housing.

3.Clean the removed paddlewheel with a mild solution of biodegradable soap or hot water. Clean the wheel well of debris and/or algae at this time.

4.Once you have cleaned the paddlewheel, you may re-insert it into the housing. Next, slide the axial clip back into the holes, then rotate it backwards to lock it into place with the wedge in the housing.

NOTE: The paddlewheel must be oriented so that it is scooping the water.

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Contents Page Thank YOU Table of Contents Menu System Start-Up Options Menu Contact Humminbird HOW the 900 Series Works Series IntroductionSingle Beam Sonar Dualbeam Plus SonarMulti-Media Card MMC/SD Slot MULTI-MEDIA Card MMC/SD SlotInstallation Overview Accessory BUSAccessory Bus 900 Series has a wide variety of configurationsGimbal 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 InstallationTo determine transducer mounting location Transom Transducer InstallationDetermine transducer mounting location Route the transducer cableMoves 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 Route the cable Permanently mount the transducerMake sure the position of the transducer is marked Inside the HullTest and Finish the Transducer Installation Trolling Motor Transducer InstallationIf you have… Then use Stem Mounting with AN Existing 1 14 Thread StemHand-tighten only Follow these steps to stem mount the GPS receiverTo 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 Menu KEY View KEYWAY Cursor Control KEY Fishing requirements see View Menu TabExit KEY View Preset KeysInfo KEY MARK/GOTO KEYViews and Readouts ViewsSonar views Navigation 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 Normal Operation Exit Normal operation by powering your 900 Series offSimulator SimulatorSelf Test Accessory Test Accessory TestSystem Status Self TestSonar X-PRESS Menu GPS Diagnostic ViewSplit Position Active SideSensitivity To adjust the Lower Range To adjust the Upper RangeUpper Range Lower RangeZoom Level Chart SpeedBottom Lock Sonar ColorsNavigation X-Press Menu Highlight Split Position on the Navigation X-Press MenuSave Current Route Save Current TrackClear Current Track Remove Grid Cancel NavigationRemove Target Beam Select Sonar Menu TABTo use Beam Select Highlight Beam Select on the Sonar main menuFish ID+ To change the Fish ID Sensitivity settingFish ID Sensitivity To turn Fish ID+ on or offBottom View To adjust the Bottom ViewZoom Width To change the Zoom WidthDepth Lines KHZ SensitivitySurface Clutter Noise FilterTransducer Select MAX DepthWater Type Navigation Menu TAB Temperature GraphColor BAR Waypoints TracksRoutes Trolling Grid Rotation North ReferenceTrackpoint Interval Track MIN DistanceDelete ALL NAV Data MAP DatumExport ALL NAV Data Chart Detail Level Chart Menu TABTo change the Chart Detail Level setting To change the Map Borders settingShaded Depth LAT/LON GridSpot Soundings Clear MAP Offset Alarms Menu TABSET MAP Offset Fish ID Alarm Depth AlarmLOW Battery Alarm Temp AlarmArrival Alarm OFF Course AlarmDrift Alarm To change the Off Course Alarm settingHighlight Alarm Tone on the Alarms main menu Alarm ToneTo change the Alarm Tone setting To change the Units Depth setting Setup Menu TABTo change the Units Temp setting Units DepthUnits Distance User ModeUnits Speed LanguageRestore Defaults Triplog ResetTo Reset Triplog To Restore DefaultsTo Select Readouts Default Sonar View Customized Sonar ViewTemp Offset Depth OffsetSpeed Calibration Local Time ZonePosition Format Daylight Saving TimeSonar Nmea OutputFollowing Nmea sentences are output To turn Nmea Output on or offViews Menu TAB Accessories Menu TABTo Change the View Status of Any View Highlight the View main menu tabSeries Defaults to Simulator with a Transducer Attached TroubleshootingSeries Doesn’t Power Up Problem Possible Cause Display ProblemsOther electronic devices Finding the Cause of NoiseNoise re-appears Boat’s engineHumminbird 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