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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!

Traditional Sonar Transducer Installation

One piece bracket (Recommended Tools and Supplies — not included)

Drill

Marine grade above-or-below waterline sealant

1” (25mm) or 5/8” (15mm) drill bit

Marine grade epoxy (Shoot-thru-hull install only)

#29 (0.136”) (3mm) drill bit

Zip ties (trolling motor mount)

Phillips (Slotted-head) screwdriver

TMB-S bracket kit (Skimmer trolling motor mount)

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. 

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Summary of Contents for DSI

Page 1: ...ng holes in your vessel Traditional Sonar Transducer Installation One piece bracket Recommended Tools and Supplies not included Drill Marine grade above or below waterline sealant 1 25mm or 5 8 15mm drill bit Marine grade epoxy Shoot thru hull install only 29 0 136 3mm drill bit Zip ties trolling motor mount Phillips Slotted head screwdriver TMB S bracket kit Skimmer trolling motor mount NOTE This...

Page 2: ...tom signal when the boat is on plane B Aligning Ratchets on bracket You will use the ratchets to ensure the trans ducer is 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 transducer bracket 2 Slide the transducer into the bracket and temporarily slide the bolt through the transducer bracket Good locations Po...

Page 3: ...ned with the dot stamped in the bracket Reassemble the transducer and bracket and place it against the transom 5 Check to see if the transducer will ad just so its face is parallel with the ground Repeat this process until the transducer can be adjusted so its face is parallel with the ground C Assembling the bracket After determining the correct position for the ratchets loosely assemble the tran...

Page 4: ...ransducer make sure to leave some slack in the cable near the transducer If you need to drill a hole in the transom to pass the connector through the hole size will depend on the connector on the end of the transducer s cable E Make test run to determine results After the transducer is installed make a test run to ensure the transducer is installed properly Use the Transducer face must be parallel...

Page 5: ...ve a flat keel pad that offers a good transducer mounting surface Make sure the Skimmer transducer is oriented so the nose of the transducer is facing the bow front of the boat If the transducer has a built in temp sensor it will only show the temperature of the hull not the water temp Before you epoxy the transducer to the hull make sure the area is clean dry and free of oil or grease The surface...

Page 6: ...nded area on the hull Be careful when mounting a transducer inside a boat hull Once epoxied into position the transducer can be very difficult to remove Epoxy is available at www lei extras com Part No 106 98 4 Press the transducer into the epoxy turning it to force out any air bubbles from under the transducer face Make sure there are no air pockets in the epoxy layers 5 Stop pressing when it bot...

Page 7: ...S trolling motor bracket Part No 51 45 is an optional accessory and is available through LEI Extras at www lei extras com The TMB S bracket is used to attach a one piece bracket skimmer transducer to a trolling motor The Pod transducer does not need aTMB S trolling motor bracket to be installed on a trolling motor It only needs a hose clamp adjustable strap Installing transducer on trolling motor ...

Page 8: ...t to turn freely Connecting the unit to power 1 Connect the black wire to a ground 2 Attach a 3 Amp fuse not included to the end of the power wire and then con nect the fuse to the positive terminal on the battery 3 Connect the Power cable to the Power port on the back of the display unit Adjustable strap Plastic ties not included Transducer cable NOTE Use 18 gauge wire to extend the power or grou...

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

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

Page 11: ...he center of the bracket mounting surface 2 Drill pilot holes for the four mounting holes If desired use a 1 inch 25mm bit to drill the center cabling hole in the mounting surface 3 If you are running the cables up through the mounting surface push the cables through the mounting surface and then pull them through the cabling hole in the center of the bracket 4 Align the mounting bracket with the ...

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

Page 13: ...ine grade below waterline sealant 1 25mm or 5 8 15mm drill bit Zip ties trolling motor mount 29 0 136 3mm drill bit Trolling motor accessory kit Slotted head Phillips drill bit FM ME5 flush mount kit pn 000 10028 001 optional WARNING Make sure you read all installation instructions before drilling holes in your vessel 0 TWEETY INSTALL_SONAR_DSI indd 13 9 14 2011 11 55 41 PM ...

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

Page 15: ... boat is on plane Install the transducer at least 1 3m away from the engine s lower unit Good location Poor location Aligning transducer ratchets Ratchets are used to ensure the transducer is 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 ducer bracket 2 Slide the transducer into the bracket and tempo...

Page 16: ... B aligned with the dot stamped in the bracket Reassemble the transducer and bracket and place it against the transom 5 Repeat this process until the transducer can be adjusted so its face is parallel with the ground Mounting to transom 1 Adjust the transducer so its face is par allel with the ground and its center is even with the bottom of the boat hull 2 Hold the transducer and bracket as sembl...

Page 17: ...tras com The Trolling motor accessory allows youtomounttheDSItransducertoa trollingmotor You must remove the factory installed transducer mount from the transducer housing before you can install the DSI transducer on a trolling motor 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 Using a flath...

Page 18: ...slip the strap around the trolling motor 3 Position the trolling motor housing so its face is pointing down when the trolling motor is in the water 4 Tighten the adjustable strap securely to the trolling motor Make sure there is enough slack in the transducer cable for the trolling motor to turn freely Slide the adjustable strap through these slots 0 TWEETY INSTALL_SONAR_DSI indd 18 9 14 2011 11 5...

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

Page 20: ...MEA 0183 Connection Diagram Shield ground NMEA IN Yellow TX NMEA IN NDC 4 NMEA0183 Temp Speed port Optional NMEA 0183 cable GPS capable units only 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: ... 988 10169 001 Copyright 2011 All Rights Reserved Navico Holding AS Visit our website www lowrance com 0 TWEETY INSTALL_SONAR_DSI indd 22 9 14 2011 11 55 45 PM ...

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