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X-4
Fish-Finding Sonar
Installation and Operation
Instructions
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Copyright © 2010 Navico All rights reserved. No part of this manual may be copied, reproduced, republished, transmitted or distributed for any purpose, without prior written consent of Navico. Any unauthorized commercial distribution of this manual is strictly prohibited. ® Lowrance is a registered trademark of Navico. Navico may find it necessary to change or end our policies, regulations, and special offers at any time. We reserve the right to do so without notice.
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Table of Contents Specifications: X-4 .............................................................................. iii Preparations ......................................................................................... 1 Transducer Installation ....................................................................... 1 Selecting a Transducer Location ..................................................... 2 How low should you go? ................................................................
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Battery Alarm .................................................................................... 32 Noise Reject and ASP ™ ..................................................................... 33 Depth Display ..................................................................................... 33 Voltage ................................................................................................ 34 Temperature Display .......................................................................
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Specifications: X-4 General Case size: ......................... 5.8" H x 4.3" W x 2.5" D (14.7 cm H x 10.8 cm W x 6.6 cm D) sealed, waterproof; suitable for saltwater use. Display: ............................ High-contrast Film SuperTwist LCD. Di- agonal viewing area: 3.5" (8.9 cm). Resolution: ...................... 240 pixels (vert.) x 160 pixels (horiz.) resolu- tion; 38,400 total pixels Backlighting: .................. incandescent backlit screen Input power: ................... 10
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Depth display: ................ Continuous digital readout. Audible alarms: .............. Deep/shallow/fish. Automatic ranging: ....... Yes, with instant screen updates. Auto bottom track: ........ Yes. Zoom bottom track: ....... Yes. Split-screen zoom: ......... No. Surface water temp: ..... Yes, built into transducer. Optional external temperature sensor or combo speed/temp sensor available. NOTICE! The storage temperature for your unit is from -4 degrees to +167 degrees Fahrenhe
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Transducer Installation Preparations You can install the sonar in some other order if you prefer, but we rec- ommend this installation sequence: Caution: You should read over this entire installation section before drill- ing any holes in your vehicle or vessel! 1. Determine the approximate location for the sonar/GPS unit, so you can plan how and where to route the cables for the transducer and power. This will help you make sure you have enough cable length for the desired configuration.
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These are all "kick-up" mounting brackets. They help prevent damage if the transducer strikes an object while the boat is moving. If the transducer does "kick-up," the bracket can easily be pushed back into place without tools. Read these instructions carefully before attempting the installation. Determine which of the mounting positions is right for your boat. Re- member, the transducer installation is the most critical part of a sonar installation. NOTE: The following installation types al
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NOTE: Some aluminum boats with strakes or ribs on the outside of the hull create large amounts of turbulence at high speed. These boats typically have large outboard motors capable of propelling the boat at speeds faster than 35 mph. Typically, a good transom location on aluminum boats is between the ribs closest to the engine. 3. The transducer should be installed with its face pointing straight down, if possible. 4. If the transducer is mounted on the transom, make sure it doesn't interfer
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How low should you go? For most situations, you should install your Skimmer transducer so that its centerline is level with the bottom of the boat hull. This will usually give you the best combination of smooth water flow and protection from bangs and bumps. Transom Transducer centerline Hull bottom Align transducer centerline with hull bottom. However, there are times when you may need to adjust the transducer slightly higher or lower. (The slots in the mounting brackets allow you t
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The following instructions sometimes vary depending on the mounting bracket that came with your transducer. Single-frequency Skimmers come with a one-piece stainless steel bracket, while dual-frequency Skimmers come with a two-piece plastic mounting bracket. Use the set of instruc- tions that fits your model. 1. Assembling the bracket. A. One-piece bracket: Press the two small plastic ratchets into the sides of the metal bracket as shown in the following illustration. Notice there are lette
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Alignment letters Alignment positions Transducer Transducer bracket Insert and align ratchets. Transducer Transducer bracket Ratchet Ratchet Add ratchets to bracket and transducer. 2. Aligning the transducer on the transom. To align the transducer to the transom, side the transducer between the ratchets. Look at the transducer from the side and adjust it so that its face is parallel to the ground. The alignment letters on either side of the bracket need be the same. 6
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If the transducer's face isn't parallel with the ground, remove the transducer and ratchets from the bracket. Place the ratchets into the holes in the bracket with the letter "B" aligned with the dot stamped in the bracket. Reassemble the transducer and bracket and place them against the transom. Again, check to see if you can move the transducer so it's pa- rallel with the ground. If you can, then go to step 3A. 3. Assembling the transducer. A. One-piece bracket: Once you determine the cor
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washer Nut Rubber washers Metal washer Bolt Assemble transducer and bracket. B. Two-piece bracket: Once you determine the correct position for the ratchets, assemble the transducer as shown in the figure in step 2B. Don't tighten the lock nut at this time. Lock washer Bolt Nut Flat washer Flat washer Assemble transducer and bracket. 4. Drilling mounting holes. Hold the transducer and bracket assembly against the transom. The transducer should be roughly parallel to the ground. T
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Mark the center of each slot for the mounting screw pilot holes. You will drill one hole in the center of each slot. Drill the holes. For the one-piece bracket, use the #29 bit (for the #10 screws). For the two-piece bracket, use the #20 bit (for the #12 screws). 5. Attaching transducer to transom. Both bracket types: Attach the transducer to the transom. Slide the transducer up or down until it's aligned properly with the bottom of the hull as shown in the preceding and following figures.
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If possible, route the transducer cable away from other wiring on the boat. Use caution when routing the transducer cable around these wires. WARNING: Clamp the transducer cable to the transom close to the transducer. This can prevent the transducer from enter- ing the boat if it is knocked off at high speed. Caution: If you need to drill a hole in the transom to pass the connector through, the required hole size be 1". If you drill the hole, make sure it is located above the waterline.
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Internal tooth washer Bolt Nut Flat washer Attach motor mounting bracket to transducer. 3. Route the transducer cable alongside the trolling motor shaft. Use plastic ties (not included) to attach the transducer cable to the trol- ling motor shaft. Make sure there is enough slack in the cable for the motor to turn freely. Route the cable to the sonar unit and the trans- ducer is ready for use. Transducer mounted on trolling motor, side view. Transducer Orientation and Fish Arches If you
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Partial fish arches Transducer aimed Transducer aimed too far back too far forward Full fish arch Proper transducer angle Transducer angles and their effects on fish arches. If the arch slopes up – but not back down – then the front of the trans- ducer is too high and needs to be lowered. If only the back half of the arch is printed, then the nose of the transducer is angled too far down and needs to be raised. NOTE: Periodically wash the transducer's face with soap
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Power Connections (permanent mount only) The unit works from a 12-volt battery system. You can attach the pow- er cable to your boat's accessory or power buss (or directly to the bat- tery). If you use an accessory buss but have problems with electrical interference, attach the power cable directly to the battery. If the cable is not long enough, splice #18 gauge wire onto it. CAUTION: When using the unit in a saltwater environment, we strongly rec- ommend that you shut off the power supply
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Red wire with To unit 3 amp fuse Black wire 12 volt battery Power connections for the X-4 sonar unit (direct battery connection shown). For example, if you have to extend the power cable to the battery or power buss, attach one end of the fuse holder directly to the battery or power buss. This will protect both the unit and the power cable in the event of a short. It uses a 3-amp fuse. Caution: Do not use this product without a 3-amp fuse wired into the power cable! Failure to use
