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Traditional Sonar and DSI Sonar Installation
This document covers the installation of the transducer and display unit installation, which includes con-
necting the unit to power and installing the unit on the bracket mount.
The first section of the document covers the installation of a traditional sonar skimmer transducer. DSI
sonar installation is covered in the last section of the manual.
Make sure you read all the installation instructions before drilling holes in your vessel!
NOTE: This majority of this installation does not apply to the GPS only units since they do
not have a transducer. Turn to pages 8-11 for information on mounting the display unit and
connecting the unit to power.
Traditional Sonar Transducer Installation
One piece bracket (Recommended Tools and Supplies — not included)
Drill
1" (25mm) or 5/8" (15mm) drill bit
#29 (0.136") (3mm) drill bit
Phillips (Slotted-head) screwdriver
0.TWEETY INSTALL_SONAR_DSI.indd 1
Marine grade above-or-below waterline sealant
Marine grade epoxy (Shoot-thru-hull install only)
Zip ties (trolling motor mount)
TMB-S bracket kit (Skimmer trolling motor mount)
9/14/2011 11:55:30 PM

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   Summary of Contents for Lowrance Traditional

  • Page 1

    The first section of the document covers the installation of a traditional sonar skimmer transducer. DSI sonar installation is covered in the last section of the manual.

  • Page 2

    Traditional Sonar A. Select a transducer location Good locations To function properly the Skimmer transducer must be in the water at all times and in a location that has a smooth flow of water when the boat is moving. If the transducer is not placed in a smooth flow...

  • Page 3

    Traditional Sonar 3. Hold the transducer 5. Check to see if the transducer will ad- Align dot and assembly against just so its face is parallel with the ground. letter "A". the transom. Look at Repeat this process until the transducer can...

  • Page 4

    Traditional Sonar Run the cable over D. Attaching Transducer to Transom the bolt and through the bracket. 1. Adjust the transducer so its face is parallel with the ground and its center line is even with the bottom of the boat hull.

  • Page 5

    Traditional Sonar Transducer slots in the transducer mounting bracket to loosen Transducer epoxied to hull the screws and slide the transducer up or down, if Epoxy adjustments are necessary. Shoot-thru-hull Skimmer and Hull Keel pad Pod transducer installation keel pad that offers a good transducer mounting Before attempting any installation on boats with surface.

  • Page 6

    Traditional Sonar transducer face is in contact with the hull. Also, make Apply epoxy to transducer Sand transducer face sure the cable is long enough to reach the sonar unit. face and mounting location. and mounting location To use shoot-thru-hull installation: 1.

  • Page 7

    Traditional Sonar 6. When finished, face Installing transducer on trolling motor: transducer should be parallel with the 1. Attach the skimmer transducer to the hull with a minimum amount of epoxy bracket as shown in the diagram. between the hull and transducer.

  • Page 8

    Traditional Sonar Connecting the unit to power 3. Position the transducer so its face is pointing straight down when the trolling 1. Connect the black wire to a ground. motor is in the water. 2. Attach a 3 Amp fuse (not included) to...

  • Page 9

    Traditional Sonar External GPS port Power port Speed/temp port; Red (power) also used for NMEA wire 0183 3 Amp Optional temp fuse (not sensor included) Black (ground) wire Optional paddlewheel speed/temp sensor 0.TWEETY INSTALL_SONAR_DSI.indd 9 9/14/2011 11:55:34 PM...

  • Page 10

    Traditional Sonar NMEA 0183 Connection Diagram (GPS capable units only) Temp /Speed port NMEA0183 Yellow TX NMEA IN (+) NDC-4 Shield (ground) NMEA IN (-) Optional NMEA 0183 cable 0.TWEETY INSTALL_SONAR_DSI.indd 10 9/14/2011 11:55:35 PM...

  • Page 11: Display Unit

    Display unit Mounting the display unit Before mounting the display unit mount, make sure there is nothing in the area that will obstruct the display unit when it is installed on the bracket. To install bracket mount: 1. Place the bracket on the desired mounting surface and mark the four mounting holes. If you want to run the unit’s cables up through the mounting surface, make a mark in the center of the bracket mounting surface.

  • Page 12

    Display unit Removing the unit from the bracket 0.TWEETY INSTALL_SONAR_DSI.indd 12 9/14/2011 11:55:40 PM...

  • Page 13

    DSI Sonar DSI Series Installation This document covers the installation of the DSI series transducer and display unit installation. WARNING: Make sure you read all installation instructions before drilling holes in your vessel. (Tools and Supplies — not included) Drill Marine grade below waterline sealant 1”...

  • Page 14

    DSI Sonar Transducer bracket assembly Transducer Rubber bracket washer Ratchets Metal washer Bolt Transducer Metal washer Rubber washer 0.TWEETY INSTALL_SONAR_DSI.indd 14 9/14/2011 11:55:41 PM...

  • Page 15

    DSI Sonar Aligning transducer ratchets Ratchets are used to ensure the transducer is Good location installed parallel to the ground. 1. Insert the ratchets in the bracket with the letter “A” aligned with the dot stamped on the outside of the trans- Too high ducer bracket.

  • Page 16

    DSI Sonar 3. Hold the transducer assembly against the transom. Look at the transduc- er from the side. If it is parallel to the ground, then the “A” position is correct. 4. If the transducer can not be adjusted so its face is parallel to the ground, re- move the transducer and ratchets from 2.

  • Page 17

    DSI Sonar 3. Drill the mounting holes for the trans- ducer bracket. Use a #29 bit (for the #10 screws). 4. Attach the transducer to the transom using the supplied screws (2). Shoot-thru hull The DSI transducer can be epoxied to the hull for shoot-thru installations.

  • Page 18

    DSI Sonar Installing transducer on trolling motor: 1. Place the DSI transducer inside the trolling motor housing. 2. Slide the adjustable strap (hose clamp) through the slots in the trolling motor housing and slip the strap around the trolling motor. 3.

  • Page 19

    DSI Sonar DSI Wiring Diagram Transducer/ power cable Fuse (not included) DSI filter cable Optional speed sensor Optional temp sensor Battery DSI transducer 0.TWEETY INSTALL_SONAR_DSI.indd 19 9/14/2011 11:55:44 PM...

  • Page 20

    NMEA 0183 Connection Diagram (GPS capable units only) Temp /Speed port NMEA0183 Yellow TX NMEA IN (+) NDC-4 Shield (ground) NMEA IN (-) Optional NMEA 0183 cable 0.TWEETY INSTALL_SONAR_DSI.indd 20 9/14/2011 11:55:45 PM...

  • Page 21

    0.TWEETY INSTALL_SONAR_DSI.indd 21 9/14/2011 11:55:45 PM...

  • Page 22

    Visit our website: www.lowrance.com Copyright © 2011 *988-10169-001* All Rights Reserved Navico Holding AS 0.TWEETY INSTALL_SONAR_DSI.indd 22 9/14/2011 11:55:45 PM...

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