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Summary of Contents for Humminbird LCR 3004
- Page 2 Please carefully consider the following before installing your transducer. TRANSDUCER MOUNTING OPTIONS A. Transom Mount- The Humminbird high speed transducer allows the transducer element to be mounted below the bottom of the boat hull keeping the transducer out of turbulent water and...
- Page 3 B. Inside Hull Mount- The high speed transducer can be mounted inside the hull (without pivot assembly) using the proper two-part epoxy, such as Humminbird’s epoxy kit. Even though there is some loss of signal in shooting through the hull, your LCR will perform well with this type of installation.
- 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 between the screwhead and bracket in order to prevent leaking.
- 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.
- 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 the two parts. Assemble by screwing the ¼”x3/8”...
- Page 7 Techsonic Industries, Inc. will not be responsible for any damage due to the mounting of your transducer in this manner. NOTE: An Epoxy Kit (Part N. EPK) is available from Humminbird. This Epoxy Kit has been formulated for Inside Hull Transducer Installation.
- Page 8 Position the swivel base and drill four ¼” diameter holes. Note: The LCR hole pattern Is the same as for all Humminbird flasher units. Use hardware provided to mount this base to the boat. Next place the gimbal bracket on the swivel base and attach with four small machine screws, provided.
- Page 9 Install the mounting knobs and tighten snugly. The unit can now be swiveled and tilted to any desired position.
- Page 10 INSTALLING THE CABLES Your LCR comes equipped with Humminbird’s new Angle-Lock power and transducer connectors. The power connector is identified with the letter P on the back of the plug.
- 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.
- Page 12 Remember, in the manual mode (see paragraph 4 below) the automatic range change is not active. The depth range is always displayed at the bottom of the LCR display. The LCR 3004 has four depth ranges, 0-15; 0-30,' 0-60; and 0-120: The graduated depth scales down the left and right side of the display will identify the proper depth based upon the range you are on at the time.
- 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 sensitivity by depressing the (+) or (-) button.
- Page 14 In the manual mode the depth scale does not change automatically and the digital bottom depth is not displayed. To once again activate the automatic mode, depress the Sensitivity Auto "On/Off" switch. 5. Audible Alarms: The LCR 3004 is equipped with two audible alarms, a Fish Alarm and a Bottom Alarm. Fish Alarm: The LCR Fish Alarm will give a short alarm sound anytime a return is detected between the boat and the bottom.
- Page 15 7. Display Speed: The LCR 3004 has a total of eight display speeds. When the unit is turned on the display will be advancing at almost maximum speed. To increase the display speed, depress the "Fast"...
- 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.
- Page 17 Step 2: Still moving at a slow speed, begin going toward deeper water. 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 bottom of the display).
- 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 wake of a boat the surface clutter will appear as shown above.
- Page 20 Brush or thick standing timber will appear as a thick mass with holes or gaps as shown above.
- Page 21 Thermocline is a temperature change at a certain depth in the water. In some conditions the sonar waves will actually reflect or bounce 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.
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