User manual HUMMINBIRD DEPTH SOUNDER

[. . . ] 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 water and insuring good high speed operation. [. . . ] 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 order to prevent leaking. Step 3 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. The square nuts are trapped inside the pivot and will not rotate as the alien head screws an; tightened. CAUTION: DO NOT APPLY LOCTITE® OR SIMILAR LOCKING COMPOUNDS BECAUSE THEY WILL ATTACK THE PLASTIC. 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 '/, "x%" alien head screw into the head of the pin and tighten. Step 5 ANGLE ALIGNMENT - Set the transducer angle so that it is parallel with the bottom of the boat hull. Once proper alignment is achieved, tighten the two alien head screws using the %2" alien wrench provided. The screws are visible through the access holes on each side of the metal bracket. Check to be sure the transducer main body is rigidly fastened to the pivot. Step 6 CHECK POSITION OF TRANSDUCER At this point, check to see that the bottom of the transducer is a minimum of %, " 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 assembly from the metal bracket by removing the pin installed during STEP 3. Loosen the metal bracket mounting screws, reposition the bracket utilizing it's slotted holes, tighten and reassemble. It may be necessary to replace the silicone sealant after this adjustment is made. 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. FIGURE 10 3. INSIDE HULL MOUNTING PROCEDURE Warning: In order to achieve proper results with this type installation, it is important that the transducer be mounted by someone familiar with the use of two part epoxy adhesives. will not be responsible for any damage due to the mounting of your transducer in this manner. [. . . ] If the NOISE REJECT knob is turned up too high, some of the signal may also be lost. Motor Turns, No Light Check voltage input to depth sounder, 10 volts minimum. HUMMINBIRD TROUBLE SHOOTING GUIDE (continued) Motor Turns, "0" Lights, No Bottom Reading Turn sensitivity knob full clockwise, noise rejection knob full counterclockwise. Plug and unplug transducer connector"0" reading should increase in width when transducer is plugged in. [. . . ]