User manual HUMMINBIRD PIRANHA 1 INSTALL GUIDE

[. . . ] For best high-speed performance this is recommended. Have an assistant pilot the boat and use caution!· Stepped hulls require the transducer be mounted on the step if possible. Never mount the transducer on the transom behind the step. [. . . ] inum Hulls Cut and use for Alum Fiberglass Aluminum 15mm 30mm Transducer Guide Left Arm Right Arm Templates supplied locating the transom bracket and adjusting the transducer's position. Figure 5 Figure 7 I-2 STEP 2: ATTACH THE CONTROL HEAD TO THE BASE 1. Insert the Pivot Bolt through the Pivot Knuckle on the control head. Thread the Gimbal Knob onto the Pivot Bolt using only 2-3 turns. Align the Pivot Knuckle with the Mount Base Arms and slide into place until it seats firmly. A slight twist will aid in seating the unit. Rotate the Control Head to the desired angle and hand tighten the Gimbal Knob. · Ensure enough space exists for easy control head installation and removal and for pivoting through its full range of motion. · The mounting area should be well supported to protect the fishfinder from wave shock and vibration. · Choose an area that provides good visibility for the Piranha. Now you can use the assembled Piranha to identify the best mounting location. STEP 4: ELECTRICAL CONNECTIONS A 2m (6') long power cable is included to supply power to the fishfinder. You may shorten or lengthen the cable using 18 gauge multi-stranded copper wire. CAUTION: Some boats have 24 or 36 volt electric systems. Be sure your unit is connected to a 12 VDC power supply. Humminbird is not responsible for over current or over voltage failures. Pivot Bolt Gimbal Knob Pivot Knuckle Figure 8 Figure 10 GROUND POSITIVE Figure 11 STEP 3: DETERMINE CONTROL HEAD MOUNTING LOCATION When choosing a mounting location consider the following: · Power and transducer cables should be installed first and must reach the control head. Transducer extension cables are available. The power cable can be shortened or lengthened with 18 gauge wire. · If possible, choose a location that provides access from below so above deck cable length is short, and the cable's hole can be covered by the mount base. Cabling can be routed through a 16mm hole centered between the two rear mounting holes of the base. The power cable can be connected to the boat's electrical system at two places: a fuse panel, usually located near the console, or directly to the battery. If a fuse terminal is available, use crimp-on type electrical connectors (not included) that match the terminal on the fuse panel. Attach the black wire to ground and the red wire to 12 VDC power (Figure 10). Be sure to use a one amp fuse in the connection. If you must wire the control head directly to a battery, be sure to install an inline fuse holder and use a one amp fuse (not included) for the protection of the unit (Figure 11). In order to minimize the potential for interference with other marine electronics a separate power source (such as a second battery) may be necessary. Remove the control head from the mount base by loosening the gimbal knob and pulling the unit from the base - a slight twisting motion will help to release it. Note: It is not necessary to completely remove the gimbal knob. [. . . ] Note: The transducer must be submerged in water for reliable transducer detection. Weight the transducer so it does not move while the epoxy is curing. When the epoxy cures, no water is necessary inside the hull. Neither water, spilled gasoline, nor oil will affect the performance of the transducer. Figure 14 3. 4. STEP 4: PERMANENTLY MOUNT THE TRANSDUCER Once the mounting location is determined, mark the position of the transducer. [. . . ]