Fish Finder User's Manual

NOTE: It is often necessary to make several incremental transducer adjustments
before optimum high speed performance is achieved. Due to the wide variety of boat
hulls, however, it is not always possible to obtain high speed depth readings.
6. Once you have reached a consistently good sonar signal at the desired
speeds, you are ready to lock down the transducer settings. Remove the
transducer from the bracket (after noting where the ratchets are
assembled), then re-align the mounting bracket against the transom of the
boat to match the traced silhouette. Check the bracket position with the
level again to make sure it is still level, then mark the third mounting hole
using a pencil or marker. Unscrew and remove the mounting screws and
the transducer bracket and set aside.
7. Drill the third mounting hole, using a 5/32” drill bit. Use a marine-grade
silicone sealant to fill all three drilled mounting holes, especially if the
holes penetrated the transom wall.
NOTE: On fiberglass hulls, it is best to use progressively larger drill bits to reduce the
chance of chipping or flaking the outer coating.
8. Re-position the transducer bracket against
the transom of the boat, then hand-install
all three screws. Make sure that the
transducer location has not changed, then
fully tighten all three mounting screws
(Figure 27). Hand tighten only! Re-install
the transducer to the mounting bracket,
making sure to assemble the ratchets in the
same location they had before. (See Figures
18a - 18d and Figure 21 - 22). If you have
performed the preceding procedures
correctly, the transducer should be level
and at the right height for optimal operation.
Fully Tighten All Three
Mounting Screws
Figure 27
19
Transom Transducer Installation