Operating Instructions and Installation Instructions

WARNING:

Use only the epoxy available from LEI. It has been for-

mulated to work with these installation procedures.

Other epoxy types may be too thin or may not cure to

the right consistency for optimum transducer perform-

ance.

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.

Speed/Temperature Sensors

Optional Speed Sensor Installation

All the units in this series can display speed and distance traveled, but

only the LMS-525cDF 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.