AP-2

APPENDIX TRIDUCER 525ST-PWC/PWD

P66 Installation template

for starboard side of boat

Drill at locations labeled "B"

for the following transom angles:

16° through 22°

B B B

A A A

Drill at locations labeled "A"

for the following transom angles:

2° through 15°

Align arrow with bottom of transom

Align template vertically

deadrise angle

slope of hull

parallel to waterline

Align template arrow with bottom edge of transom

Figure 3. Template position

Caution: Never Use Solvents!

Cleaners, gasoline, paint, sealants, and other products may contain strong solvents such as acetone which can attack many plastics dramatically reducing their strength.

Installation

Bracket

1.Cut out the installation template shown on the left.

2.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).

Warning: Always wear safety goggles and a dust mask.

3.Using a 4mm, #23, or 9/64” bit, drill three holes 22mm (7/8”) deep at the locations indicated. To prevent drilling too deeply, wrap masking tape around the bit 22mm (7/8”) 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 1mm (1/16”).

4.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.

5.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”.

Adjusting

1.Using a straight edge, sight the underside of the sensor relative to the underside of the hull. The stern of the sensor should be

1-3mm (1/16-1/8”) below the bow of the sensor or parallel to the bottom of the hull (see Figure 5).

Caution: Do not position the bow of the sensor lower than the stern because aeration will occur.

Step 1

Step 2

Step 3

Step 4

latch

pivot arm (2)

retaining cover

slot (2)

Figure 4. Attaching the sensor to the bracket

GP-1850DF specifications

Furuno is renowned for its high-quality marine electronics, and the GP-1850DF and GP-1850F are no exceptions. These advanced GPS chart plotters are designed to meet the needs of both professional mariners and recreational boaters alike.

The GP-1850DF is equipped with a powerful 12-channel GPS that provides fast and accurate positioning information, while the GP-1850F features a sturdy built-in fish finder, making it ideal for anglers. Both units boast a brilliant color display that enhances visibility in various lighting conditions, ensuring that users can easily read information on the screen, even in direct sunlight.

One of the standout features of these models is their compatibility with a variety of chart formats, including C-MAP, and Furuno’s proprietary raster charts. This flexibility allows users to choose from a broad range of navigational charts, catering to specific regional needs and preferences. The intuitive interface of the GP-1850 series simplifies navigation, offering menu-driven commands and support for multiple languages.

Furuno has integrated advanced sonar technology in the GP-1850F model, including a high-resolution fish finder capable of detecting fish signatures with remarkable precision. The dual-frequency capabilities enable users to switch between higher frequencies for shallow water fishing and lower frequencies for deeper waters. This enriches the fishing experience while improving catch rates.

Moreover, both devices feature a built-in waypoint register, allowing users to store up to 1,000 waypoints, which can be essential for returning to promising fishing spots or navigating back to port. The navigation functions also include routes and track recording, empowering boaters to create custom paths and review their previous journeys.

The GP-1850 series also places a high emphasis on safety, incorporating features like man overboard (MOB) alarms and route alarms to enhance on-water safety. Additionally, they are designed to withstand the harsh marine environment, with waterproof housings that ensure durability during adverse weather conditions.

In conclusion, the Furuno GP-1850DF and GP-1850F models provide an exceptional combination of performance, reliability, and user-friendly features, making them a preferred choice for both fishermen and navigators. Their adaptability in various maritime situations, alongside advanced technologies, cements their reputation as essential tools for successful and safe voyages on the water.

Furuno GP-1850DF installation manual AP-2

Models: GP-1850DF