Humminbird 937C COMBO, 937C DF COMBO manual Order to gain access to the mounting screws

Page 20

www..reelsche93x Man 531370-1mA - vs4atic.qxd 2/18/2005..com11:11 AM Page 20

To mount the transducer pivot assembly to the bracket (Dual frequency units):

1.Slide the assembled transducer into the metal bracket from the bottom, aligning the large hole at the top of the bracket with the hole in the pivot.

2.Insert the headed pin through the pivot holes in the bracket and pivot. The headed pin can be inserted from either side of the bracket.

3.Place the nylon washer over the opposite end of the headed pin. Place the stainless washer over the 1/4"-20 x 5/8" screw threads, then insert into the opposite end of the headed pin and finger tighten only. The screw has a thread locking compound on the threads to prevent loosening, and should not be fully tightened until all adjustments are made.

NOTE: The running position of the transducer is now completely adjustable. Subsequent adjustment may be necessary to tweak the installation after high speed testing.

1

5

 

1

Screw

3

 

2

 

2

Headed Pin

 

 

 

 

 

 

4

 

3

Allen Wrench

 

 

 

4

Nylon Washer

 

 

 

5

Stainless Washer

To adjust the running position of the transducer (Dual frequency units):

The transducer mounting bracket allows height and tilt adjustment, while the pivot bolt allows angular adjustment. These adjustments will help reduce cavitation. Initially, adjust the transducer as described in the following paragraphs. Further adjustment may be necessary to refine the installation after high-speed testing.

Cavitation that will cause

Normal Cavitation

erratic sonar readings

 

1.First, adjust the pivot angle of the transducer body, so it is parallel with the length of the hull of the boat.

2.Fully tighten the two pivot screws, using the supplied Allen wrench. Access to the pivot screws is provided by the lower holes in the side of the mounting bracket. It may be necessary to re-tighten the pivot bolt after initial use as the plastic may still be conforming to the pressure from the lock washers.

3.Adjust the height of the assembly so the face of the transducer is 1/8" (3 mm) to 1/4" (6 mm) beneath the bottom of the transom, and fully tighten the three mounting screws.

4.In order to gain access to the mounting screws, the

transducer assembly must be pivoted up in the bracket as Tighten the Mounting Screws shown. Be careful not to alter the running angle as some

force is necessary to pivot the assembly.

15

Page 19 Page 21
Image 20
Page 19 Page 21
Contents Page Thank YOU Table of Contents Menu System Start-Up Options Menu Contact Humminbird Series Introduction HOW the 900 Series WorksSingle Beam Sonar Dualbeam Plus SonarMULTI-MEDIA Card MMC/SD Slot Multi-Media Card MMC/SD SlotAccessory BUS Installation OverviewAccessory 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 Plug Cable Connector Assembly to Back of Control Head TemperatureTransducer Installation Connecting the Control Head Power Cable to the BoatTransom Transducer Installation To determine transducer mounting locationDetermine transducer mounting location Route the transducer cableCorner of the template Moves clockwise as the boat movesConfirm that the pivot angle has not changed Normal CavitationTo attach the pivot to the transducer Dual frequency unit Attaching the BracketOrder to gain access to the mounting screws, Force is necessary to pivot the assemblyTo route the transom transducer cable all transducers Determine the transducer mounting location Inside the Hull Transducer InstallationTrial installation Permanently mount the transducer Route the cableMake sure the position of the transducer is marked Inside the HullTrolling Motor Transducer Installation Test and Finish the Transducer InstallationStem Mounting with AN Existing 1 14 Thread Stem If you have… Then useHand-tighten only Follow these steps to stem mount the GPS receiverAccess Under Mounting Location To the cable as shownNo Access Under Mounting Location Finish Routing the Cable and Check GPS Receiver OperationHand 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 Testing the System Installation To test the installationSeries 937c DF Combo Title Screen Getting Started Using Your 900 SeriesPowering UP the Control Head WHAT’S on the Sonar Display TriplogBottom Presentation Understanding Sonar HistoryReal Time Sonar RTS Window MARK/GOTO key Info key Zoom +/- key POWER/LIGHT KEYKEY Functions View KEY Menu KEYWAY Cursor Control KEY Fishing requirements see View Menu TabView Preset Keys Exit KEYInfo KEY MARK/GOTO KEYViews Views and ReadoutsSonar views Navigation viewsSonar View Sonar ViewSonar Zoom View Sonar Zoom View Split Sonar ViewBIRD’S EYE View Bird’s Eye ViewChart/Bird’s Eye Combo View Chart View with Active CursorChart/Sonar Combo View 1112Chart Orientation Chart View with Cursor PresentNavigation To save the marked position as a waypoint Waypoints, Routes and TracksNavigate 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 Menu System Press MenuStart-Up Options Menu Sonar Tab, Normal ModeSTART-UP Options Menu Exit Normal operation by powering your 900 Series off Normal OperationSimulator SimulatorAccessory Test Self Test Accessory TestSystem Status Self TestGPS Diagnostic View Sonar X-PRESS MenuSplit Position Active SideSensitivity To adjust the Upper Range To adjust the Lower RangeUpper Range Lower RangeChart Speed Zoom LevelBottom Lock Sonar ColorsHighlight Split Position on the Navigation X-Press Menu Navigation X-Press MenuSave Current Route Save Current TrackClear Current Track Remove Grid Cancel NavigationRemove Target Sonar Menu TAB Beam SelectTo use Beam Select Highlight Beam Select on the Sonar main menuTo change the Fish ID Sensitivity setting Fish ID+Fish ID Sensitivity To turn Fish ID+ on or offTo adjust the Bottom View Bottom ViewZoom Width To change the Zoom WidthKHZ Sensitivity Depth LinesSurface Clutter Noise FilterTransducer Select MAX DepthWater Type Navigation Menu TAB Temperature GraphColor BAR Waypoints TracksRoutes North Reference Trolling Grid RotationTrackpoint Interval Track MIN DistanceDelete ALL NAV Data MAP DatumExport ALL NAV Data Chart Menu TAB Chart Detail LevelTo 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 Depth Alarm Fish ID AlarmLOW Battery Alarm Temp AlarmOFF Course Alarm Arrival AlarmDrift Alarm To change the Off Course Alarm settingHighlight Alarm Tone on the Alarms main menu Alarm ToneTo change the Alarm Tone setting Setup Menu TAB To change the Units Depth settingTo change the Units Temp setting Units DepthUser Mode Units DistanceUnits Speed LanguageTriplog Reset Restore DefaultsTo Reset Triplog To Restore DefaultsDefault Sonar View Customized Sonar View To Select ReadoutsDepth Offset Temp OffsetSpeed Calibration Local Time ZoneDaylight Saving Time Position FormatNmea Output SonarFollowing Nmea sentences are output To turn Nmea Output on or offAccessories Menu TAB Views 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 Display Problems Problem Possible CauseFinding the Cause of Noise Other electronic devicesNoise re-appears Boat’s engineYear Limited Warranty Humminbird Service PolicyFor IN-WARRANTY service, complete the following steps Returning Your Unit for ServiceSeries Accessories Specifications Power OutputAlign with transom Appendix aPlace on bottom of hull Appendix B Contact Humminbird
Top Page Image Contents