Lowrance electronic X515C DF Benutzerhandbuch

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2. The epoxy consists of the epoxy itself and a hardener. Remove the 

two compounds from the package and place them on the paper plate. 
Thoroughly stir the two compounds together until the mixture has a 

uniform color and consistency. Do not mix too fast or bubbles will 

form in the epoxy. After mixing, you have 20 minutes to complete the 

installation before the epoxy becomes unworkable. 
Spread a thin layer of epoxy (about 1/16" or 1.5 mm thick) on the face 
of the transducer as shown in the previous figure. Make sure there 
are no air pockets in the epoxy layer! Then, apply the remaining ep-

oxy to the sanded area on the hull. 

3. Press the transducer into the epoxy, twisting and turning it to force 

any air bubbles out from under the transducer face. Stop pressing 

when you bottom out on the hull. When you're finished, the face of 

the transducer should be parallel with the hull, with a minimum 

amount of epoxy between the hull and transducer. 

4. Apply a weight, such as a brick, to hold the transducer in place while 

the epoxy cures. Be careful not to bump the transducer while the ep-

oxy is wet. Leave the weight in place for a minimum of three hours. 

Allow the epoxy to cure for 24 hours before moving the boat. 

5. After the epoxy has cured, route the cable to the sonar unit and it's 

ready to use. 

Optional Speed Sensor Installation 
All the units in this series can display speed and distance traveled, but 

only the X-515cDF comes packed with a speed sensor. If you wish to 

purchase an optional additional sensor for your unit, refer to the acces-

sory ordering information inside the back cover of this manual. The 

following instructions describe how to install the speed sensor. 
Recommended tools for this job include: drill, 7/8" drill bit, 1/8" drill bit 

for pilot holes, screwdriver. Required supplies for this job include: four 
#8 stainless steel wood screws (3/4" long), high quality, marine grade 

above- or below-waterline sealant. 
First find a location on the boat's transom where the water flow is 

smoothest. Don't mount the sensor behind strakes or ribs. These will 

disturb the water flow to the speed sensor. Make sure the sensor will 

remain in the water when the boat is on plane. Also make sure the lo-

cation doesn't interfere with the boat's trailer. Typically, the sensor is 

mounted about one foot to the side of the transom's centerline. Once 

you've determined the proper location for the unit, place the sensor on