Humminbird 1197C SI - Manual (Page 38)

7. Adjust the transducer assembly vertically, until the seam on the leading edge of the transducer (the edge
closest to the transom of the boat) is level and just slightly below the hull.
NOTE: The transducer has a natural downward slant of 4-5 degrees from leading edge (closest to the boat
transom) to trailing edge (farthest away from the boat). Looking at the back of the transducer, the seam should
be slightly below the bottom of the hull.
8. Continue to adjust until the bracket is also level from port to starboard (horizontally level as you
look at the transducer from behind the boat).
9. Mark the correct position on the transom by tracing the silhouette of the transducer mounting
bracket with a pencil or marker.
10. Tighten the pivot bolt, using the pivot screw and nut to lock the assembly. Hand tighten only!
11. Snap open the assembly and hand-tighten the two mounting screws, then snap the assembly
closed.
NOTE: You will drill the third mounting hole and finalize the installation after you route the cable and test
and finish the installation in the following procedures.
Adjusting the Transducer Mounting Position
Seam aligned with boat hull
Leveling the Mounting Assembly Horizontally
Level
Level
Adjusting the Initial Transducer Angle
Leading edge
One click too high
Correctly aligned
(transducer side seam
aligned with boat bottom)
Trailing edge
One click too low
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