•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, such as an Inside the Hull Transducer (see Inside the Hull TransducerInstallation).

•If you plan to trailer your boat, do not mount the transducer too close to trailer bunks or rollers to avoid moving or damaging the transducer during loading and unloading of the boat.

•If high speed operation is critical, you may want to consider using an In-Hull transducer instead of this Transom Mount transducer.

NOTE: The hydrodynamic shape of your transducer allows it to point straight down without deadrise adjustment.

NOTE: If you cannot find a transom mount location that will work for your high- speed application, find an In-Hull Transducer by contacting our Customer Resource Center at either 1-800-633-1468 or by visiting our web site at humminbird.com.

2. Preparing the Mounting Location

In this procedure, you will determine the mounting location and drill two mounting holes, using the transducer mounting bracket as a guide.

1.Make sure that the boat is level on the trailer, both from port to starboard and from bow to stern, by placing your level on the deck of the boat, first in one direction, then in the other.

2.Hold the mounting bracket against the transom of the boat in the location you have selected. Align the bracket horizontally, using the level; make sure that the lower corner of the bracket does not

protrude past the bottom of the hull, and there is at least 1/4" clearance between the bottom of the bracket and the bottom of the transom for fiberglass boats, and 1/8" clearance for aluminum boats.

Positioning the

Boat Hull Types Require

Mounting Bracket

Different Mounting Positions

Level

Level

1/4” for fiberglass 1/8” for aluminum

NOTE: If you have a flat-bottomed aluminum boat, some additional adjustment may be needed to accommodate the rivets on the bottom of the boat (i.e. the gap may need to be a little smaller than 1/8"). This will help you to avoid excessive turbulence at high speeds.

NOTE: If your propeller moves clockwise (in forward, as you're facing the stern of the boat from behind), mount the transducer on the starboard side, and align the bottom right corner of the mounting bracket with the bottom of the boat. If your propeller moves counter-clockwise (in forward, as you're facing the stern of the boat from behind), mount the transducer on the port side, and align the bottom left corner of the mounting bracket with the bottom of the boat.

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Transom Mount - DualBeam PLUS™