Using the Mounting Bracket to Mark the Initial Drill Holes
4th hole
Mark Initial | 3rd hole | |
Drill Holes | ||
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3.Continue to hold the bracket on the transom of the boat, and use a pencil or marker to mark where to drill the two mounting holes. Mark the drill holes near the top of each slot, making sure that your mark is centered in the slot (see the illustration Using the Mounting Bracket to Mark the Initial Drill Holes).
NOTE: The third hole should not be drilled until the angle and height of the transducer is finalized, which you will not do until a later procedure.
4.Make sure that the drill bit is perpendicularto the actual surface of the transom, NOT parallelto the ground, before you drill. Using a 5/32” bit, drill the two holes only to a depth of approximately 1”.
NOTE: On fiberglass hulls, it is best to use progressively larger drill bits to reduce the chance of chipping or flaking the outer coating.
3. Assembling the Transducer and Initial Mounting
In this procedure,you will assemble the transducer using the hardwareprovided, then mount it and make adjustmentsto its position without locking it in place.
NOTE: You will initially assemble the transducer and the pivot arm by matching the two ratchets to a numbered position on the transducer knuckle. Further adjustments may be necessary.
1a. If you already know your transom angle, refer to the chart below for the initial position to use to set the ratchets. If your transom is angled at 14 degrees (a common transom angle for many boats) use position 1 for the ratchets. In either case, go to step 2. If you do not know your transom angle, go to step 1b.
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13Transom Mount Transducer Installation