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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 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 w
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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 back 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 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
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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. (See Figure C) Step 2. BRACKET INSTALLATION (Fiberglass Boats)- If your boat h
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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 centered vertically in the three slots found in the bracket. It is important to use a silicone sealant between the screwhead and bracket in or
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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” allen head screw into the end of the pin and tighten. (See Figure G) Step 5 ANGLE ALLIGHMENT- Set the transducer angle so that it is parallel with the bottom of the boat hull. Once p
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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. (However, as noted in STEP 2, the top of the transducer cannot fall below the bottom of the transom). If it is not, remove the transducer assem
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7. Remove the water and transducer and clean the marked area and the bottom of the transducer 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 bottom of the transducer with epoxy, then put it in the center of the puddle and push down on the transducer while moving it around in a circular mot
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Install the mounting knobs and tighten snugly. The unit can now be swiveled and tilted to any desired position.
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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 new A
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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. A 32-degree transducer cannot be used. A 11/8” hole must be drilled to pull through the transducer connector. After drilling the hole, pull the transduc
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WARNING: This device should not be used as a navigation aid to prevent collision, grounding, boat damage or personal injury. When the boat is moving, submerged objects will not be seen until they are already under the boat or bottom depths may change too quickly to allow time for the boat operator to react. Always operate the boat at very slow speeds if you suspect shallow water or submerged objects. "MADE BETTER TO WORK BETTER" This manual covers the installation and operation of your
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Positive Noise Reject System - Easily adjustable control knob to eliminate interference and false signals with the Humminbird positive noise reject system. High Speed Readings - Clear bottom readings at any speed up to 75 miles per hour can be achieved providing the transducer has been properly installed. Super-Bright Thin Line Lamp-Even in bright sunlight, the flasher super-bright thin line lamp gives detailed readings. Night Light- Humminbird's patented night light makes for easy n
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THEORY OF OPERATION Your depth sounder works on the sonar principle. The control head generates an electronic signal which is coupled to the transducer where it is changed to an ultrasonic signal. This signal travels through the water until it hits an object or the lake bottom. The signal is then reflected back to the transducer, where it is changed back to an electronic signal. The control head measures the amount of time it takes the signal to travel from the transducer to the
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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 insuring good high speed operation. The transducer will absorb the blow of any obstruction 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 back in place. B. Inside Hull
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2. Improper installation of the transducer can alter the efficiency and accuracy of the entire system. 3. If your boat or transducer is out of the water for a period of time, it may take a short period of time for the transducer to become thoroughly "wetted" when returned to the water. Also, re-entry may cause the turbulence which will create air bubbles on the "eye" of the transducer. The bubbles will disappear in a short time or can be removed by rubbing the transducer "eye" with you
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Step 2 (Fiberglass Boats) BRACKET INSTALLATION - If your boat has a stepped transom located below and under the main transom, the compact transducer design allows mounting in this area. This mounting location is recommended for good reading at very high speeds. (See Figure 5). To install the metal bracket on a fiberglass boat, locate the template on the transom in the same manner as for an aluminum boat. (See figure 4). NOTE: On boats with more than 15° deadrise angle it may be n
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TRANSDUCER PIVOT ASSEMBLY Assemble the pivot to the transducer main body using the two 1/4x%" alien head screws, two %," tooth washers and two'/," square nuts. Make sure the tooth washers are sandwiched between the transducer main body and the pivot. (See Figure 7). The square nuts are trapped inside the pivot and will not rotate as the alien head screws an; tightened. HOWEVER, DO NOT TIGHTEN AT THIS POINT (See Figure 7). CAUTION: DO NOT APPLY LOCTITE® OR SIMILAR LOCKING COMPOUNDS BECAUSE
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NOTE: It may be necessary to make several high speed runs to adjust transducer either UP/DOWN or to readjust the angle to achieve optimum results. Step 7 CABLE CLAMPS - Install cable clamps as necessary by drilling a %' dia. hole for the #8 screw supplied. Be sure to route the cable to the side of the bracket. The cable can be cut if it is installed in the center of the bracket. (See Figure 10). FIGURE 10 3. INSIDE HULL MOUNTING PROCEDURE Warning: In order to achieve proper r
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3. Put approximately one inch of water in the bottom of the boat. 4. Put transducer in the water. The bottom of the transducer should be in a flat area and should be in good contact with the bottom of the boat. 5. Operate the unit with the boat operating at high speed. The transducer may have to be moved in order to find an area where satisfactory operation is observed. 6. When an area is found that produces satisfactory operation, mark the location of the transducer. 7. Remove th
