User Guide

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• On boats with stepped hulls, it may be possible to mount the
transducer on the step. Do not mount the transducer on the
transom behind a step to avoid popping the transducer out of
the water at higher speeds; the transducer must remain in
the water for the depthsounder to maintain the sonar signal.
• If the transom is behind the propeller(s), it may be impossible
to find an area clear from turbulence, and a different
mounting technique or transducer type should be considered
(see Inside the Hull Transducer Installation).
2. Mounting the Bracket
1. Remove the transducer mounting template from the end of this manual.
NOTE: Please make sure that you use the correct drill holes for the hull composition of your
boat.
2. Hold the template on the transom of the boat in the
location where the transducer will be installed. Align the
template vertically, matching the lower edge of the
transom with the bottom corner of the template. If your
propeller moves clockwise as the boat moves forward,
mount the transducer on the starboard side, and use the
bottom left corner of the template. If your propeller moves
counter-clockwise as the boat moves forward, mount the
transducer on the port side, and use the bottom right
corner of the template.
3. Using a pencil or punch, mark the two mounting holes
(shown on the template for your type of hull) on the
transom. Do not mark or drill any other holes at this time.
4. Using a 9/64" (3.5 mm) bit, drill the two holes to a depth of
approximately 1" (25 mm).
3. Transducer Assembly
NOTE: The transducer assembly referred to in this step consists of
the transducer connected to either the Single Piece or the Two
Piece Kick-up mounting bracket.
1. Attach the Single Piece mounting bracket or the Two
Piece Kick-up pivot to the transducer body, using the
1/4” - 20 x 1 1/4" Phillips head pivot bolt, the nyloc nut,
and the two toothed lock washers.
NOTE: The toothed lock washers must be positioned between the transducer arms and the
pivot knuckle regardless of mounting bracket type.
Nyloc
Nut
Pivot
Knuckle
Toothed Lock
Washer
Pivot Bolt
Transducer Arms
DO NOT LET DEADRISE
INTERSECT THIS LINE
PLACE EITHER CORNER
ON DEADRISE ANGLE
TOP
Use 5/32" drill bit
Drill Drill
PLACE EITHER CORNER
ON DEADRISE ANGLE
TOP
Use 5/32" drill bit
DrillDrill
Pivot
Knuckle
Toothed Lock
Washer
Transducer
Arms
Kick-up
Nyloc
Nut
Pivot Bolt
Step
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TRANSDUCER INSTALLATION
If you have a transom mount transducer you can mount it on the transom (preferred), in the
hull, or you can purchase the trolling motor adapter and mount it on your trolling motor. If you
have a puck transducer then you can ONLY mount it in the hull; there is a separate inside the
hull mounting section for puck transducers. Find the correct section for your transducer
installation type.
The included transducer is designed for transom mounting on the boat (directly exposed to the
water). On fiberglass hull boats, this same transducer can be bonded to the inside of the hull.
When mounted inside the hull, the sonar signal actually passes through the hull of the boat. One
of these two mounting techniques will produce acceptable results on most boats. There are,
however, several situations that may demand a different type of transducer. Inboard boats, wood
or metal hulls, and sailboats often have unique transducer mounting requirements.
TRANSOM TRANSDUCER INSTALLATION
1. Locating the Transducer Mounting Position
NOTE: If transom mounting is not possible because of a stepped hull or cavitation noise, and
you have a single layer fiberglass hull, In-hull installation is an option. See Inside the Hull
Transducer Installation for more information.
First, determine the best location on the transom to install the transducer. Consider the following
to find the best location:
• It is very important to locate the transducer in an area
which is relatively free of turbulent water. As a boat moves
through the water, turbulence is generated by the weight
of the boat, and the thrust of the propeller(s) - either
clockwise or counter-clockwise. This turbulent water is
normally confined to areas immediately aft of ribs, strakes
or rows of rivets on the bottom of the boat, and in the
immediate area of the propeller(s). Clockwise propellers
create more turbulence on the port side. On outboard or
inboard/outboard boats, it is best to locate the transducer
at least 15" (380 mm) to the side of the propeller(s).
• The best way to locate turbulence-free water is to view the transom while the boat is
moving. This method is recommended if maximum high-speed operation is a high priority.
If this is not possible, select a location on the transom where the hull forward of this
location is smooth, flat and free of protrusions or ribs.
• The hydrodynamic shape of your transducer allows it to point straight down without
deadrise adjustment.
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