Humminbird HDR 650 manual Assembling the Transducer and Initial Mounting, 4th hole Mark Initial

Page 17

Using the Mounting Bracket to Mark the Initial Drill Holes

4th hole

Mark Initial

3rd hole

Drill Holes

 

3.Continue to hold the bracket on the transom of the boat, and use a pencil or marker to mark where to drill the two mounting holes. Mark the drill holes near the top of each slot, making sure that your mark is centered in the slot (see the illustration Using the Mounting Bracket to Mark the Initial Drill Holes).

NOTE: The third hole should not be drilled until the angle and height of the transducer is finalized, which you will not do until a later procedure.

4.Make sure that the drill bit is perpendicularto the actual surface of the transom, NOT parallelto the ground, before you drill. Using a 5/32” bit, drill the two holes only to a depth of approximately 1”.

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

3. Assembling the Transducer and Initial Mounting

In this procedure,you will assemble the transducer using the hardwareprovided, then mount it and make adjustmentsto its position without locking it in place.

NOTE: You will initially assemble the transducer and the pivot arm by matching the two ratchets to a numbered position on the transducer knuckle. Further adjustments may be necessary.

1a. If you already know your transom angle, refer to the chart below for the initial position to use to set the ratchets. If your transom is angled at 14 degrees (a common transom angle for many boats) use position 1 for the ratchets. In either case, go to step 2. If you do not know your transom angle, go to step 1b.

or...

13Transom Mount Transducer Installation

Image 17
Contents HDR 650 Installation Operations Manual Thank You Table of Contents Maintenance How Sonar Works Installation Overview Installing the HDR Cutting the Mounting Hole Locating the HDR 650 Mounting PositionHDR Face Plate Trim Ring Tabs Customizing and Assembling the HDRHDR 650 Control Head Installing the HDRCollar Gasket DashboardView Buzzer Installing the BuzzerConnecting to the Power Supply Inline Fuse Holder Installing the TransducerTransducer Installation Overview Locating the Transducer Mounting Position Transom Transducer InstallationRivets Strakes TransomHull StepRibDeadrise Angle LevelPreparing the Mounting Location Drill Holes Assembling the Transducer and Initial Mounting4th hole Mark Initial Bead Alignment Number Transom Angle Measured Distance Transom Angle in degrees MeasuredWeight DistanceBead Ratchet Knuckle Beads RatchetRib Snap the pivot arm down into place Trailingedge One click too low Leading edge One click too highRouting the Cable Transom Mount Transducer Installation Test and Finish the Installation Connecting the CableStoring Excess Cable Gathered at one location as shown See the illustration Storing Excess CableLevel Seam aligned with boat hull Rib Ratchet BeadTransom Mount Transducer Installation Locking Down the Transducer Optional Inside the Hull Transducer Installation Positioning the Transducer and Preferred Mounting Area Trial InstallationRouting the Cable Make sure the position of the transducer is marked Permanently Mounting the TransducerTrolling Motor Transducer Options Trolling Motor Transducer InstallationOperating the HDR Units Shallow Alarm Icon IndicatesHDR 650 Control Head DepthKey Functions Overview Power On/OffSet Units UnitsSet Shallow Alarm Icon Shallow AlarmSet Deep Alarm Icon Deep AlarmPostiveOffset NumberIcon NegativeOffset NumberIconTransducer Maintenance MaintenanceHDR 650 Maintenance HDR 650 Doesnt Power Up TroubleshootingNo Continuous Depth Display in Very Shallow Water No Bottom Reading on the DisplayScreen Fades, Images are not Sharp Bottom Reading Disappears During a Hard TurnYear Limited Warranty Humminbird Service Policy Returning Your Unit for Service Specifications Specifications Contact Humminbird