Transom Transducer Installation

4.Make sure that the drill bit is perpendicular to the actual surface of the transom, NOTparallel to the ground, beforeyou drill. Usinga 5/32” bit, drill the two holes only to a depth of approximately 1”.

NOTE: On fiberglasshulls, it is best to use progressivelylarger drill bits to reduce the chanceof chippingor flakingthe outer coating.

Assembling the Transducerand Initial Mounting

In this procedure,you will assemble the transducer usingthe hardwareprovided, then mount it and make adjustments to its position without locking it in place.

NOTE:Youwill initiallyassemblethe transducerand the mountingbracketby matching the two ratchetsto a numberedpositionon the transducerknuckle.Furtheradjustments 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 (Figure 16). 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.

BeadgnmentAli

1

4

2

5

3

1

4

2

5

3

1

Number

ranT som Angle (°)

 

 

 

 

 

 

 

 

 

 

 

 

 

-2 -1 0

1 2

3

4 5 6

7 8

9

10 11 12

13 14 15

16 17 18

19 20 21

22 23 24

25 26 27

28 29 30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Msur ed Distance (x)

0.0 cm

.1cm

2.5 cm

0“

/2“1

1“

Measuring the Transom Angle

Plumb

line 12”

Transom Angle in degrees (°)

Weight

Measured Distance (X)

Figure 17

4.3 cm

5.9 cm

7.6 cm

.3cm9

1cm11.

2.19cm

4.19cm

6.19cm

1 5/8“

2 3/8“

3“

3 5/8“

4 3/8“

5“

5 7/8“

6 5/8“

Figure 16

or...

1b. If you do not know your transom angle, measure it using a plumb line (weighted nylon string or monofilament line) exactly 12 inches long. Hold the top of the plumb line against the top of the transom with your finger, and wait until the line hangs straight down (Figure 17). Using a ruler, measure the distance from the bottom of the plumb line to the back of the transom, then use the chart (Figure 16).

NOTE: It is important to take your measurement in the location shown in Figure 17, from exactly 12 inches down from the top of the transom.

12