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Humminbird LCR 3004 - page 1
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Humminbird LCR 3004 - page 2
TRANSDUCER MOUNTING PROCEDURE Humminbird’s high - speed transducer is supplied with your LCR. This transducer has been designed to give good high speed readings on most all boat designs, including aluminum. Please carefully consider the following before in stalling your transducer. TRANSDUCER MOUNTING OPTIONS A. Transom Mount - The Humminbird hig ...
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Humminbird LCR 3004 - page 3
by rotating up out of the metal spring bracket without harming the transducer, or your boat. The transducer can be re - engaged by simply rotating the transducer down and snapping it b ack in place. (See Figure A) B. Inside Hull Mount - The high speed transducer can be mounted inside the hull (without pivot assembly) using the proper two - part epo ...
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Humminbird LCR 3004 - page 4
Once the location is determined mark and drill three 7/64” dia.. holes noted on the template. Attach the metal bracket using three #10 self threading screws supplied. Be sure to align holes in the center of the Bracket slots. On some aluminum boats it may be necessary to use a wood back - up plate. It is important to use a silicone sealant betwee ...
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Humminbird LCR 3004 - page 5
NOTE: On boats with more than 15 degree deadrise angle it may be necessary to mount the transducer slightly off parallel with the water level. (See Figure E) Mark and drill the three 9/64” dia. holes as shown on the template. Attach the metal bracket using the three #10 self threading screws supplied. Be sure to align the holes so that they are c ...
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Humminbird LCR 3004 - page 6
Step 4 TRANSDUCER ASSEMBLY - Insert the transducer assembly into the metal bracket from the bottom. Push up until the holes in the plastic pivot align with the uppermost holes in the bracket. Slide the O - ring on to the headed pin and insert it through th e two parts. Assemble by screwing the ¼”x3/8” allen head screw into the end of the pin a ...
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Humminbird LCR 3004 - page 7
wrench provided. The screws are visible through the access holes on each side of the metal bracket. Check to make sure the transducer main body is rigidly fastened to the pivot. (See Figure H) Step 6 CHECK POSITION OF TRANSDUCER - At this point, check to see that the bottom of the transducer is a minimum of ¼” below the bottom of the transom. (H ...
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Humminbird LCR 3004 - page 8
7. Remove the water and transducer and clean the marked area and the bottom of the t ransducer thoroughly. 8. Using the Humminbird Epoxy Kit or equivalent, mix an ample amount of epoxy without causing it to bubble and pour it in the area the transducer is to be mounted. The puddle should be larger than the bottom of the transducer. 9. Coat the b ot ...
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Humminbird LCR 3004 - page 9
Install the mounting knobs and tighten snugly. The unit can now be swiveled and tilted to any desired position. ...
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Humminbird LCR 3004 - page 10
OTHER MOUNTING OPTIONS 1. The LCR gimbal bracket can also be mounted on the SM - 4, quick disconnect swivel mount. 2. The LCR gimbal bracket can also be mounted directly to the dash without the swivel mount, however, this method is not recommended since the unit cannot be rotated. INSTALLING THE CABLES Your LCR comes equipped with Humminbird’s ne ...
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Humminbird LCR 3004 - page 11
It plugs into the outlet on the back of the unit marked “Power”. The transducer connector is identified with the letter T and plugs into the outlet on the back of the unit marked “Transducer”. Note: An adapter (AD - 4) is available to allow use of an old waterproof (BNC) transducer with the LCR, but be sure that the transducer is a 16degree ...
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Humminbird LCR 3004 - page 12
OPERATIONAL INSTRUCTIONS FOR LCR 3004: The Humminbird LCR 3004 will operate fully automatic or manual at the discretion of the operator. At the heart of the LCR 3004 is a microcomputer which is making thousands of decisions every second. With the LCR 3004's automatic features you will quickly a nd easily learn the basics of operating your unit ...
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Humminbird LCR 3004 - page 13
Manual Mode - There are two ways of putting the LCR 3004 in the manual mode: (1) depress the Auto "On/Off" button or (2) depress either the manual decrease ( - ) or increase (+) button. You will notice that the word "Auto" in the upper right hand corner of the display has gone off . The operator can control the amount of sensiti ...
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Humminbird LCR 3004 - page 14
You should also note that it is possible to have the sensitivity set too high such that reflection off of suspended matter or air bubbles will begin to black out the display. In the manual mode the depth scale does not change automatically and the digital bottom depth is not disp layed. To once again activate the automatic mode, depress the Sensiti ...
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Humminbird LCR 3004 - page 15
Turn off the Bottom Alarm by again pushing the alarm "On/Off button. The alarm setting will then go to zero. If the alarm is turned on again before the unit is turned off, it will still be set at the previous setting. 6. Display: Stop/Resume: Anytime during the operation of the LCR, the operator may "freeze" the display by simply pus ...
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Humminbird LCR 3004 - page 16
LEARNING TO USE YOUR LCR: After installing the unit, transducer, and power cable as instructed, the LCR is ready for use. By following the steps below you will be able to quickly learn how to use the LCR. Also, trouble shooting suggestions are listed in these steps. Note: Perform steps 1 through 6 at idle or slow speed. These steps will insure that ...
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Humminbird LCR 3004 - page 17
Step 2 : Still moving at a slow speed, begin going toward deeper wate r. You will see that the LCR will display changes as small as 3 inches on the 0 - 15 foot scale. Continue to move into deeper water until the bottom return goes off the display. The LCR will automatically change to the next deeper depth scale (indicated at b ottom of the display) ...
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Humminbird LCR 3004 - page 18
LEARNING TO READ THE DISPLAY The following illustrations show some typical display with bottom, structure, and target returns. These should help you in interpreting the information being displayed on your LCR. Surface clutter: The STC in your LCR will normally eliminate surface clutter, however, in some water conditions or when going across the wak ...
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Humminbird LCR 3004 - page 19
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Humminbird LCR 3004 - page 20
Brush or thick standing timber will appear as a thick mass with holes or gaps as shown above. ...
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Humminbird LCR 3004 - page 21
Thermocline is a temperature change at a certain depth in the water. In some conditions the sonar waves will actually reflect or bo unce off this temperature change and therefore it will be displayed on the LCR as shown above. To see the thermocline, you will need to go to the manual mode and increase the sensitivity setting. One of the best ways t ...
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