Section 3 Installation
29
Installation
Bracket
➀
Copy and cut out the installation template shown on the upside.
➁
At the selected location, position the template, so the arrow at the bottom is
aligned with the bottom edge of the transom. Being sure the template is
parallel to the waterline, tape it in place (see Figure 3-6).
➂
Using a 4mm, #23, or 9/64" bit, drill three holes 7/8" (22mm) deep at the
locations indicated. To prevent drilling too deeply, wrap masking tape around
the bit 7/8" (22mm) from the point.
Fiberglass hull - Minimize surface cracking by chamfering the gelcoat. If a
chamfer bit or countersink bit is not available, start drilling with a 6mm or
1/4" bit to a depth of 1/16" (1mm).
➃
If you know your transom angle - The bracket is designed for a standard
13° transom angle.
11°-18° angle - No shim is required. Skip to “Adjusting”, step 3.
Other angles - The shim is required. Skip to “Adjusting”, step 2.
If you do not know the transom angle -Temporarily attach the bracket and
sensor to the transom to determine if the plastic shim is needed.
➄
Using the two #10 x 1-1/4" self-tapping screws, temporarily screw the
bracket to the hull. Do not tighten the screws completely at this time. Follow
the instructions for “Attaching the Sensor to the Bracket”, steps 1-4 before
proceeding with “Adjusting”.
Attaching the Transducer to the Transom
✁
Align arrow with bottom of transom
P66 Installation template
for starboard side of boat
Drill at locations labeled “B”
for the following transom angles:
16˚ through 22˚
Drill at locations labeled “A”
for the following transom angles:
2˚ through15˚
A
B
A
B
A
B
A
B
Template position
deadrise angle
Align template arrow with
bottom edge of transom
Align template vertically
slope of hull
parallel to
waterline
Figure 3-6
Always wear safety goggles and a dust mask.
WARNING
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